WO2004101382A1 - Valve for dispensing liquids and method of use - Google Patents

Valve for dispensing liquids and method of use Download PDF

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Publication number
WO2004101382A1
WO2004101382A1 PCT/US2004/013981 US2004013981W WO2004101382A1 WO 2004101382 A1 WO2004101382 A1 WO 2004101382A1 US 2004013981 W US2004013981 W US 2004013981W WO 2004101382 A1 WO2004101382 A1 WO 2004101382A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
end opening
body member
distal end
passageway
Prior art date
Application number
PCT/US2004/013981
Other languages
French (fr)
Inventor
Mark E. Gabbard
Original Assignee
Menshen Packaging Usa, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Menshen Packaging Usa, Inc. filed Critical Menshen Packaging Usa, Inc.
Priority to EP04751385A priority Critical patent/EP1620324A1/en
Publication of WO2004101382A1 publication Critical patent/WO2004101382A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/22—Drinking vessels or saucers used for table service
    • A47G19/2205—Drinking glasses or vessels
    • A47G19/2266—Means for facilitating drinking, e.g. for infants or invalids
    • A47G19/2272—Means for facilitating drinking, e.g. for infants or invalids from drinking glasses or cups comprising lids or covers

Definitions

  • the field of invention relates to liquid dispensers, and more particularly, to liquid dispensers with valves.
  • slit or duckbill
  • valve top arrangement that can be found on other liquid containers.
  • This arrangement provides a valve top material that contains a slit to allow liquid to flow through when sufficient suction is applied to the top.
  • these slit arrangements frequently leak under normal usage and usually leak when the pressure in the bottle, either by squeezing or expansion of gases in the liquid, exceeds atmospheric pressure.
  • each one of these references suffers from one or more of the following disadvantages: valve assemblies requiring manual push/pull operation, leaking valve assemblies due to poor seals, and leaking valve assemblies when the container is subjected to pressure.
  • a liquid dispenser that allows a user to quickly and easily drink liquids from a container while providing a hands-free operation and a leak-free seal when no suction is applied or when the container is subjected to a compressive force, such as squeezing.
  • the above-described problems are solved and a technical advance achieved by the present valved liquid dispenser.
  • the invention described herein relies on a novel valve assembly that includes a novel diaphragm arrangement to allow a user to use the container without operating some valve or top. Furthermore, the novel valve assembly prevents leaking of the container even when compressive forces are applied to the container.
  • the novel valve for dispensing liquids from containers comprises: a valve body having a proximal end opening and a distal end opening and defining an axial passageway therebetween; a diaphragm support located within the axial passageway; a diaphragm seat located within the axial passageway between the distal end opening and the diaphragm support, the diaphragm seat comprising a constricted section of the axial passageway; and a diaphragm sealingly engaged within the axial passageway, the diaphragm having a diaphragm hub and a diaphragm body, wherein the diaphragm is supported between the diaphragm seat and the diaphragm support, the diaphragm hub and the axial passageway define a first diaphragm body area adjacent the distal end opening and the hub and said passageway define a second diaphragm body area adjacent the proximal end opening, whereby the diaphragm body flexes toward the
  • the diaphragm seat further comprises a shape to direct liquid toward the diaphragm hub. More specifically, the shape is hour-glass shaped.
  • the diaphragm hub comprises a duckbill.
  • the diaphragm support comprises: prongs extending substantially parallel to the passageway from the diaphragm support toward the distal end opening to support the duckbill.
  • the diaphragm further includes a circumference. The circumference is selected from the group consisting of circular, elliptical, oblong and oval.
  • Figure 1A illustrates a cross-section view of a first embodiment of the present valved liquid dispenser
  • Figure 1 B illustrates a cross-section view of another embodiment of the present valved liquid dispenser
  • Figure 2 illustrates a cross-section view of a first embodiment of the valve
  • Figure 3A illustrates a cross-section view of the first body member of the embodiment of Figure 2;
  • Figure 3B illustrates an end view of the first body member, valve side, of the embodiment of Figure 2;
  • Figure 3C illustrates an end view of the first body member, suction side, of the embodiment of Figure 2;
  • Figure 4A illustrates a cross-section view of the diaphragm of the embodiment of Figure 2;
  • Figure 4B illustrates a top view of the diaphragm of the embodiment of Figure 2
  • Figure 5A illustrates a cross-section view of the second body member of the embodiment of Figure 2;
  • Figure 5B illustrates an end view of the second body member, container side, of the embodiment of Figure 2;
  • Figure 5C illustrates an end view of the second body member, valve side, of the embodiment of Figure 2;
  • Figure 6A illustrates a cross-section view of another aspect of the diaphragm of the embodiment of Figure 2;
  • Figure 6B illustrates a top view of the diaphragm of Figure 6A
  • Figure 7A illustrates a cross-section view of another aspect of the diaphragm of the embodiment of Figure 2;
  • Figure 7B illustrates a top view of the diaphragm of Figure 7A
  • Figure 8 illustrates a cross-section view of another embodiment of the present valved liquid dispenser
  • Figure 9A illustrates a cross-section view of the first body member of the embodiment of Figure 8;
  • Figure 9B illustrates an end view of the first body member, valve side, of the embodiment of Figure 8
  • Figure 9C illustrates an end view of the first body member, suction side, of the embodiment of Figure 8;
  • Figure 10A illustrates a cross-section view of the diaphragm of the embodiment of Figure 8.
  • Figure 10B illustrates a top view of the diaphragm of the embodiment of Figure 8.
  • Figure 11A illustrates a cross-section view of the second body member of the embodiment of Figure 8.
  • Figure 11 B illustrates an end view of the second body member, container side, of the embodiment of Figure 8
  • Figure 11C illustrates an end view of the second body member, valve side, of the embodiment of Figure 8;
  • Figure 12 illustrates a cross-section view of another aspect of the first member of the embodiment of Figure 8;
  • Figure 13A illustrates a cross-section view of another aspect of the diaphragm of the embodiment of Figure 8;
  • Figure 13B illustrates a top view of the diaphragm of Figure 13A
  • Figure 14 illustrates a cross-section view of the first embodiment of the valve with the diaphragm in operation.
  • valve side means the end of valves 102 and 202 that are in direct contact with and usually attached to the containers 104 and 204.
  • suction side means the end of the valves 102 and 202 that are in direct contact with a suction or negative pressure, either provided by a human or otherwise.
  • valves 102 and 202 first contact the liquid in the containers 104 and 204 and then as suction is applied to the valves 102 and 202, the liquid flows through the valves 102 and 202 toward the suction end to be consumed by a user or to be dispensed for other purposes.
  • proximal end means that end closer to a suction source and the use of the term “distal end” means that end closer to the container.
  • valves 102 and 202 may include two valve body pieces, namely a first body member and a second body member, as described below.
  • first body member and the second body member each have a valve side, in addition to the container side and suction side, respectively.
  • valve side means the ends of the first body member and second body member that face the diaphragm of the present valved liquid dispenser. Therefore, the first body member has a container side and a valve side and the second body member has valve side and a suction side.
  • Figure 1A illustrates in embodiment 100 the present valved liquid dispenser including a valve 102 and container 104.
  • the present valved liquid dispenser 100 is preferably used with containers 104 that are preferably collapsible. These containers 104 are commonly known and include sacks, bags, packets, and pouches that are capable of containing liquids. In addition, containers 104 can be flexible or rigid.
  • Figure 1 B illustrates in another embodiment 200 the present valved liquid dispenser including valve 202 and container 204.
  • the present valved liquid dispenser 200 is preferably used with containers 204 that are preferably flexible. These containers are commonly known and include sports bottles, drink bottles, and plastic bottles. Furthermore, containers 204 can be flexible or rigid.
  • Figure 2 illustrates a cross-section of valve 102 that includes a valve body 106.
  • the valve body 106 can be comprised of a one-piece housing (not shown) or the valve body 106 can be comprised of two or more pieces, such as the two shown in Figure 2.
  • the valve body 106 includes a first body member 108 and a second body member 110.
  • the first body member 108 and the second body member 110 are connected together by threads, or alternatively by other similar type fastening methods such as, welded joints, epoxies, resins, glues, screws, or tape.
  • the first body member 108 is attached to the container 104 by a valve welding 126, or alternatively by other similar fastening methods such as, threads or epoxies.
  • the valve 102 further includes a diaphragm 112, which will be discussed in more detail below.
  • Figure 2 also depicts the first body member passageway 122 and second body member passageway 124, which together form a passageway for liquid to pass through the valve 102.
  • the second body member passageway 124 preferably includes a second body member passageway constriction 117.
  • the large black arrows depict the liquid flow direction through the valve 102 when suction is applied to the end of the first body member 108.
  • the diaphragm 112 is arranged and supported within the valve 102 by a diaphragm support 114 and the diaphragm seat 120.
  • the diaphragm 112 is snuggly seated between the diaphragm support 114 and the diaphragm seat 120. This arrangement creates a diaphragm first area 116 and a diaphragm second area 118, both of which are part of the novelty of the present valved liquid dispenser 100.
  • Figure 3A illustrates a cross-section view of the first body member 108 of the embodiment of Figure 2.
  • the first body member 108 includes a first body member opening 128.
  • Figure 3B illustrates the valve side end view of the first member 108.
  • the valve side of the first body member 108 is opposite the first body member opening 128.
  • This view illustrates a plurality of first body member orifices 130, which are orifices for liquid to flow from the container to the suction side of the valve 102.
  • the first body member 108 also includes a diaphragm support 114.
  • Figure 3C illustrates the suction side end view of the first member 108.
  • Figure 4A illustrates a cross-section view of diaphragm 112 of the present valved liquid dispenser 100, which includes a diaphragm hub 132 and a diaphragm body 134.
  • the diaphragm hub 132 is shaped so as to support and align the diaphragm 112 on the diaphragm support 114. Further, the shape of the proximal and distal ends of the diaphragm hub 132 may be contoured to enable precise fluid flow within the valve body 106, as is shown in Figure 4A.
  • Figure 4B illustrates a top view of the diaphragm 112. This view illustrates diaphragm body indentations 136, which further contribute to the novelty of the present valved liquid dispenser 100.
  • FIG. 5A illustrates a cross-section view of the second body member 110 of the present embodiment of the valved liquid dispenser 100.
  • Second body member 110 includes a second body member orifice 138 and a second body member opening 140.
  • the second body member orifice 138 may be tapered, narrowed or contoured relative to the second body member passageway 124, to direct the liquid toward the central portion of the diaphragm 112. It can also be tapered to decrease the volume of liquid that contacts the diaphragm first area 116.
  • Figure 5B illustrates a container side end view of the second body member 110
  • Figure 5C illustrates a valve side end view of the second body member 110.
  • Figure 6A illustrates a cross-section view of another aspect of the diaphragm of the present embodiment of valved liquid dispenser 100.
  • the diaphragm 142 is thinner than diaphragm 112.
  • Diaphragm 142 includes diaphragm hub 144 and diaphragm body 146.
  • Figure 6B illustrates a top view of the diaphragm of Figure 6A including diaphragm indentations similar or identical to those of the diaphragm body indentation 136 of Figure 4B.
  • Figure 7A illustrates diaphragm 148, which includes a diaphragm hub 150 and a diaphragm body 152.
  • diaphragm 148 includes a diaphragm ridge 154, which increases the sealing area between the diaphragm 148 and the diaphragm seat 120.
  • Figure 7B illustrates a top view of the diaphragm of Figure 7A and shows the location of the diaphragm ridge 154.
  • Figures 1A - 7B illustrate an embodiment of the present embodiment 100 of the valve 102 for dispensing liquids.
  • a different diaphragm is used with a different support structure.
  • Figure 8 illustrates a cross-section view of another embodiment 200 of the valve 202 of the present valved liquid dispenser that includes a valve body 206.
  • the valve body 206 can be comprised of a one-piece housing (not shown) or the valve body 206 can be comprised of two or more pieces, such as the two shown in Figure 8.
  • the valve body 206 includes a first body member 208 and a second body member 210.
  • the first body member 208 and the second body member 210 are connected together by threads, or alternatively by other similar type fastening methods such as, welded joints, epoxies, resins, glues, screws, or tape.
  • the first body member 208 is attached to the container 204 by a valve welding 226, or alternatively by other similar fastening methods such as, threads or epoxies.
  • the valve 202 further includes a diaphragm 212, which will be discussed in more detail below.
  • Figure 8 also depicts the first body member passageway 222 and second body member passageway 224, which together form a passageway for liquid to pass through the valve 202.
  • the second body member passageway 224 preferably includes a second body member passageway constriction 217.
  • the large black arrows depict the liquid flow direction through the valve 202 when suction is applied to the end of the first body member 208.
  • the diaphragm 212 is arranged and supported within the valve 202 by a diaphragm support 214 and the diaphragm seat 220.
  • the diaphragm 212 is snuggly seated between the diaphragm support 214 and the diaphragm seat 220.
  • This arrangement creates a diaphragm first area 216 and a diaphragm second area 218, both of which are part of the novelty of the present valved liquid dispenser 200.
  • Figure 9A illustrates a cross-section view of first body member 208 of the embodiment of the present valved liquid dispenser 200.
  • Figure 9A illustrates a cross-section view of the first body member 208 of the valve 202.
  • the first body member 208 includes a first body member opening 228.
  • first body member 208 includes one or more of the diaphragm supports 214, to support the diaphragm 212.
  • Figure 9B illustrates the valve side end view of the first member 208. This view illustrates a plurality of first body member orifices 230, which are orifices for liquid to flow from the container to the suction side of the valve 202.
  • Figure 9C illustrates the suction side end view of the first member 208.
  • Figure 10A illustrates a cross-section view of the diaphragm of the diaphragm 212 of the present valved liquid dispenser 200, which includes a diaphragm hub 232 and a diaphragm body 234.
  • the diaphragm hub 232 includes a diaphragm slit 236.
  • Figure 10B illustrates a container side top view of the diaphragm 212. This view illustrates diaphragm body indentations, similar to those of diaphragm body indentation 136 of Figure 4B.
  • Figure 11A illustrates a cross-section view of the second body member 210 of the present embodiment of the valved liquid dispenser 200.
  • Second body member 210 includes a second body member orifice 240 and a second body member opening 238.
  • the second body member orifice 240 may be tapered, narrowed or contoured relative to the second body member passageway 224, to direct the liquid toward the central portion of the diaphragm 212. It can also be tapered to decrease the volume of liquid that contacts the diaphragm first area 216.
  • Figure 11 B illustrates a container side end view of the second body member 210 and Figure 11C illustrates a valve side end view of the second body member 210.
  • FIG 12 another aspect of the first body member 242 is illustrated, depicting slightly longer diaphragm supports 244 than those shown in diaphragm support 214 of Figure 9A. These slightly longer diaphragm supports 244 are for supporting slightly thinner diaphragms, such as diaphragm 246 shown in Figure 13A.
  • Figure 13A illustrates a cross-section view of another aspect of the diaphragm 246 of the present valved liquid dispenser 200, which includes a diaphragm hub 248 and a diaphragm body 250.
  • the diaphragm hub 248 includes a diaphragm slit 252 and a diaphragm ridge 254.
  • Figure 13B illustrates a container side top view of the diaphragm 246. This view illustrates diaphragm body indentations, similar to those of diaphragm body indentation 136 of Figure 4B.
  • Figure 14 illustrates a cross-section view of the first embodiment of the valve with the diaphragm 112 in operation.
  • the outer circumference of the diaphragm 112 is illustrated slightly bent towards the first body member passageway.
  • the present valved liquid dispenser 100 is preferably used with containers
  • containers 104 that are preferably collapsible. These containers 104 are commonly known and include sacks, bags, packets, and pouches that are capable of containing liquids. In addition, containers 104 can be flexible or rigid.
  • the present valved liquid dispenser 200 is preferably used with containers 204 that are preferably flexible. These containers are commonly known and include sports bottles, drink bottles, and plastic bottles. Furthermore, containers 204 can be flexible or rigid.
  • Diaphragms 112, 142, and 148 are preferably one piece, but may comprise several pieces. Diaphragms 212 and 246 are preferably one piece, but may be two pieces as shown by diaphragm 246. Diaphragms 112, 142, 148, 212, and 246 can also be made of differing thickness depending on their composition. Diaphragms 112, 142, 148, 212, and 246 are preferably comprised of a flexible or soft material such as TPE, TPR, TPO, Thermoset elastomer, plastics, rubbers, polyolefins, and any combinations, blends, and copolymers of the above.
  • a flexible or soft material such as TPE, TPR, TPO, Thermoset elastomer, plastics, rubbers, polyolefins, and any combinations, blends, and copolymers of the above.
  • TPE means a thermoplastic vulcanizate or thermoplastic elastomer alloys and include Butyl/polypropylene, EPDM/polypropylene or other soft elastomeric material.
  • TPR means thermoplastic rubber alloys and include soft elastomeric materials.
  • TPO means thermoplastic elastomer polyolefin blends with thermoset rubber. Thermoset elastomers include EDPM, silicone, HNBR, NBR, Butyl, Viton, Nitrile, Neoprene, Natural rubber, SBR, and Kypalon.
  • the thickness of diaphragms 112, 142, 148, 212, and 246 vary according to their composition. Preferably, diaphragms 112, 142, 148, 212, and 246 thickness ranges between 0.001 to 1 inch.
  • the diameter of diaphragms 112, 142, 148, 212, and 246 varies depending on the technology of the molding processes and the desired uses of the valved liquid dispensers 100 and 200.
  • the diameter of diaphragms 112, 142, 148, 212, and 246 ranges between 0.025 to 12 inches.
  • Diaphragms 112, 142, 148, 212, and 246 preferably include diaphragm body indentation 136, as shown in Figure 4B.
  • These diaphragm body indentations 136 preferably are shaped or contoured to decrease the suction required to operate the valves 102 and 202 and to increase the volume or flow of liquid that can flow through the valves 102 and 202.
  • the shape of these diaphragm body indentations 136 may be any shape that enables the flow of liquid while retaining the novel characteristics of the valve.
  • Some shapes of the circumference of the diaphragms 112, 142, 148, 212, and 246 include non-uniform or asymmetrical shapes, such as circular, elliptical, oblong, oval, and star-shaped. These circumference shapes comprise the diaphragm body indentations 136.
  • Diaphragm hub 234 includes a diaphragm slit 252 and diaphragm hub 248 includes a diaphragm slit 252.
  • These slit arrangements are also commonly known as duckbills or other venting valves such as flapper valves and ball check valves.
  • These duckbill arrangement can be one piece, such as diaphragm hub 234 or can be two or more pieces, such as diaphragm hub 248.
  • the diaphragm slit 252 and the diaphragm hub 248 can be the same or different compositions of the materials mentioned above.
  • diaphragm body 234 is LDPE or similar material and diaphragm slit 252 comprises TPE, Thermal set rubber, or other similar material.
  • Diaphragm body ridge 154 and 254 may be a single ridge or a plurality of ridges, preferably the number of ridges is between 1 and 100.
  • the diaphragm body ridge 154 and 254 increase the sealing area between the diaphragm seat 120 and 220 and the diaphragms. Further, diaphragm body ridge 154 and 254 assists in sealing, between the diaphragm seat 120 and 220 and the diaphragms, when pulpy, fibrous or viscous material or liquid is dispensed through the valves 102 and 202.
  • Valve body 106 and 206 may be comprised of a rigid moldable material.
  • valve body 106 and 206 are comprised of a material selected from copolyester, polystyrene, ABS, PC, ABS/PL blend nylons, polyacetal, copolymer nylon, ABS (Acrylonitrile Butadiene Styrene), polypropylene, polycarbonate, and polyethylene.
  • the composition of valve body 106 and 206 may be blends of the above stated materials or other materials that provide a rigid body.
  • first body members 108 and 208 and second body members 1 10 and 210 are molded or hand made parts, they can be of any dimension
  • diaphragm supports 214 and 244 may be different lengths to support diaphragms 212 and 246 of differing thicknesses
  • diaphragm supports 214 and 244 may comprise one, two or more supports
  • the first body member 208 includes four diaphragm supports 214 and 244, respectively.
  • the diaphragm support 214 functions by supporting the diaphragms 212 and 246 between the diaphragm seat 220 and the diaphragm support 214, while allowing the diaphragms 212 and 246 to flex or bend when under suction or negative pressure is applied to the first body member opening 228
  • Diaphragms 112, 142, and 148 and their respective diaphragm hubs 132, 144, and 150 support the diaphragms 112, 142, and 148 against the diaphragm seat 120 so as to allow the diaphragms 112, 142, and 148 to bend or flex when suction or negative pressure is applied to the first body member opening 128
  • the diaphragm support 244 operates in the same manner.
  • the amount of suction required to operate the valves 102 and 202 depends on several factors Furthermore, some of these factors contribute to the novel feature of the valve to overcome positive pressures created by compressive forces placed on the containers 104 and 204
  • One such factor is the width of the second body member passageway constrictions 117 and 217
  • These second body member passageway constrictions 117 and 217 direct the flow of liquid toward the central portion of the diaphragms 112, 142, 148, 212, and 246 As the width of the second body member passageways 124 and 224 are increased, more diaphragm surface area is exposed to the liquid pressure and therefore less suction is required to activate the valves 102 and 202
  • the thickness and composition of material of the diaphragm body 134, 146, 152, 234, and 250 is composed of a LDPE type material or other similar material, then the thickness would be less than if it were composed of a more soft or flexible material, such as TPE.
  • the thickness and composition of the diaphragm body 134, 146,152, 234, and 250 can be varied depending on use, container and desired application For a soft flexible material, the diaphragm body 134, 146, 152, 234, and 250 would be a greater thickness than for material of less soft material.
  • the diameter of the diaphragm first areas 116 and 216 is substantially wider than the diaphragm first areas 116 and 216, the greater resistance to positive pressure within the containers 104 and 204 the valves 102 and 202 will be able to oppose.
  • valves 102 and 202 can be used with all types of containers.
  • the valve 202 as described herein, can be used with flexible sports bottles to provide a sports bottle with a hand-free top.
  • valve 202 can be used with flexible soft drink bottles and containers.
  • valve 202 can be used in all types of liquid containers, besides liquid dispensers. For instance, when a user pumps liquid soap from a dispenser, negative pressure is created within the container. This negative pressure may be equalized with the atmospheric pressure by the use of the valve 202.
  • valve 202 can be welded to empty collapsible containers that will be filled at a later time.
  • valve 102 can be used with collapsible drink containers such as children's collapsible drink containers or boxes.
  • valve 102 can be used with the soft drink syrup storage boxes that presently have connections that leak when connecting and disconnecting from the delivery system, valve 102 as described herein would eliminate this leaking problem.
  • valves 102 and 202 could be used with all types of bottles, cans, jars and boxes that contain and dispense liquids, fluids, and other types of flowable matter.
  • the valved liquid dispenser 200 may be filled by connecting the valve 202 to an apparatus that is provides liquid under positive pressure and allowing the liquid to flow through the diaphragm slit 236 into the container 204.
  • an empty container 204 is attached to a valve 202 and then filled by the apparatus.

Abstract

The valved liquid dispenser allows hands-free operation of the dispenser while preventing leakage caused by positive pressures within the container. The valved liquid dispenser provides a passageway (122, 124) and diaphragm (112) that operate by applying suction to the proximal end of the valve. In another embodiment of the valved liquid dispenser, the diaphragm includes a duckbill (236) that is supported by a diaphragm support to allow liquid to flow through the passageway similar to the first embodiment, but also allows for pressure equalization within the container.

Description

VALVE FOR DISPENSING LIQUIDS AND METHOD OF USE
Field of the Invention
The field of invention relates to liquid dispensers, and more particularly, to liquid dispensers with valves.
Problem Liquid containers and the plethora of related caps, tops and closures can be found everywhere. From the office to the softball fields, these containers are used by workers and athletes alike. Many of these containers employ differing valve top technologies that allow a user to close and open a container with their hands without having to thread a top on and off the container. A common top found in many sports drink containers is the ubiquitous push/pull top, which requires a user to pull the outer top shell upward thereby creating a passageway for the liquid to flow through. However these containers require a user to force open and close the top when using the container. In addition, these tops are prone to leak even when closed, because either the seal becomes worn and leaks or because obstructions disallow the complete sealed closure of the top.
Another leak-free top technology in use is the slit, or duckbill, valve top arrangement that can be found on other liquid containers. This arrangement provides a valve top material that contains a slit to allow liquid to flow through when sufficient suction is applied to the top. However, these slit arrangements frequently leak under normal usage and usually leak when the pressure in the bottle, either by squeezing or expansion of gases in the liquid, exceeds atmospheric pressure.
Information relevant to attempts to address these problems can be found in U.S. Patent Nos. 6,050,444 issued 18 April 2000 to Sugg; 6,006,952 issued 28 December 1999 to Lucas; 6,325,236 issued 4 December 2001 to Wong; 6,305,570 issued 23 October 2001 to Atkin et al; 6,206,230 issued 27 March 2001 to Wan et al; 6,079,589 issued 27 June 2000 to Matsuyama et al; 6,062,419 issued 16 May 2000 to Krϋger et al; 5,651 ,471 issued 29 July 1997 to Green; 4,121 ,731 issued 24 October 1978 to Okerstrum; and 3,964,631 issued 22 June 1976 to Albert.
However, each one of these references suffers from one or more of the following disadvantages: valve assemblies requiring manual push/pull operation, leaking valve assemblies due to poor seals, and leaking valve assemblies when the container is subjected to pressure. For the foregoing reasons, there is a need for a liquid dispenser that allows a user to quickly and easily drink liquids from a container while providing a hands-free operation and a leak-free seal when no suction is applied or when the container is subjected to a compressive force, such as squeezing. Solution
The above-described problems are solved and a technical advance achieved by the present valved liquid dispenser. The invention described herein relies on a novel valve assembly that includes a novel diaphragm arrangement to allow a user to use the container without operating some valve or top. Furthermore, the novel valve assembly prevents leaking of the container even when compressive forces are applied to the container.
The novel valve for dispensing liquids from containers comprises: a valve body having a proximal end opening and a distal end opening and defining an axial passageway therebetween; a diaphragm support located within the axial passageway; a diaphragm seat located within the axial passageway between the distal end opening and the diaphragm support, the diaphragm seat comprising a constricted section of the axial passageway; and a diaphragm sealingly engaged within the axial passageway, the diaphragm having a diaphragm hub and a diaphragm body, wherein the diaphragm is supported between the diaphragm seat and the diaphragm support, the diaphragm hub and the axial passageway define a first diaphragm body area adjacent the distal end opening and the hub and said passageway define a second diaphragm body area adjacent the proximal end opening, whereby the diaphragm body flexes toward the proximal end opening when negative pressure is applied to the proximal end opening and the diaphragm body doesn't flex toward the proximal end opening when positive pressure is applied to the distal end opening.
In addition, the diaphragm seat further comprises a shape to direct liquid toward the diaphragm hub. More specifically, the shape is hour-glass shaped. Moreover, the diaphragm hub comprises a duckbill. The diaphragm support comprises: prongs extending substantially parallel to the passageway from the diaphragm support toward the distal end opening to support the duckbill. The diaphragm further includes a circumference. The circumference is selected from the group consisting of circular, elliptical, oblong and oval. Numerous other features, objects and advantages of the invention will become apparent from the following description when read in conjunction with the accompanying drawings.
Brief Description of the Drawings Figure 1A illustrates a cross-section view of a first embodiment of the present valved liquid dispenser;
Figure 1 B illustrates a cross-section view of another embodiment of the present valved liquid dispenser;
Figure 2 illustrates a cross-section view of a first embodiment of the valve; Figure 3A illustrates a cross-section view of the first body member of the embodiment of Figure 2;
Figure 3B illustrates an end view of the first body member, valve side, of the embodiment of Figure 2;
Figure 3C illustrates an end view of the first body member, suction side, of the embodiment of Figure 2;
Figure 4A illustrates a cross-section view of the diaphragm of the embodiment of Figure 2;
Figure 4B illustrates a top view of the diaphragm of the embodiment of Figure 2; Figure 5A illustrates a cross-section view of the second body member of the embodiment of Figure 2;
Figure 5B illustrates an end view of the second body member, container side, of the embodiment of Figure 2;
Figure 5C illustrates an end view of the second body member, valve side, of the embodiment of Figure 2;
Figure 6A illustrates a cross-section view of another aspect of the diaphragm of the embodiment of Figure 2;
Figure 6B illustrates a top view of the diaphragm of Figure 6A; Figure 7A illustrates a cross-section view of another aspect of the diaphragm of the embodiment of Figure 2;
Figure 7B illustrates a top view of the diaphragm of Figure 7A; Figure 8 illustrates a cross-section view of another embodiment of the present valved liquid dispenser; Figure 9A illustrates a cross-section view of the first body member of the embodiment of Figure 8;
Figure 9B illustrates an end view of the first body member, valve side, of the embodiment of Figure 8; Figure 9C illustrates an end view of the first body member, suction side, of the embodiment of Figure 8;
Figure 10A illustrates a cross-section view of the diaphragm of the embodiment of Figure 8;
Figure 10B illustrates a top view of the diaphragm of the embodiment of Figure 8;
Figure 11A illustrates a cross-section view of the second body member of the embodiment of Figure 8;
Figure 11 B illustrates an end view of the second body member, container side, of the embodiment of Figure 8; Figure 11C illustrates an end view of the second body member, valve side, of the embodiment of Figure 8;
Figure 12 illustrates a cross-section view of another aspect of the first member of the embodiment of Figure 8;
Figure 13A illustrates a cross-section view of another aspect of the diaphragm of the embodiment of Figure 8;
Figure 13B illustrates a top view of the diaphragm of Figure 13A; and Figure 14 illustrates a cross-section view of the first embodiment of the valve with the diaphragm in operation.
Detailed Description Throughout this description, terms of orientation are used to refer to a particular end of the valves 102 and 202. For example, the term "container side" means the end of valves 102 and 202 that are in direct contact with and usually attached to the containers 104 and 204. Also, the term "suction side" means the end of the valves 102 and 202 that are in direct contact with a suction or negative pressure, either provided by a human or otherwise. In other words, the container side of valves 102 and 202 first contact the liquid in the containers 104 and 204 and then as suction is applied to the valves 102 and 202, the liquid flows through the valves 102 and 202 toward the suction end to be consumed by a user or to be dispensed for other purposes. In addition, the use of the term "proximal end" means that end closer to a suction source and the use of the term "distal end" means that end closer to the container.
In addition, valves 102 and 202 may include two valve body pieces, namely a first body member and a second body member, as described below. Typically, the first body member and the second body member each have a valve side, in addition to the container side and suction side, respectively. The term "valve side" means the ends of the first body member and second body member that face the diaphragm of the present valved liquid dispenser. Therefore, the first body member has a container side and a valve side and the second body member has valve side and a suction side.
Figure 1A illustrates in embodiment 100 the present valved liquid dispenser including a valve 102 and container 104. The present valved liquid dispenser 100 is preferably used with containers 104 that are preferably collapsible. These containers 104 are commonly known and include sacks, bags, packets, and pouches that are capable of containing liquids. In addition, containers 104 can be flexible or rigid. Figure 1 B illustrates in another embodiment 200 the present valved liquid dispenser including valve 202 and container 204. The present valved liquid dispenser 200 is preferably used with containers 204 that are preferably flexible. These containers are commonly known and include sports bottles, drink bottles, and plastic bottles. Furthermore, containers 204 can be flexible or rigid.
Figure 2 illustrates a cross-section of valve 102 that includes a valve body 106. The valve body 106 can be comprised of a one-piece housing (not shown) or the valve body 106 can be comprised of two or more pieces, such as the two shown in Figure 2. The valve body 106 includes a first body member 108 and a second body member 110. The first body member 108 and the second body member 110 are connected together by threads, or alternatively by other similar type fastening methods such as, welded joints, epoxies, resins, glues, screws, or tape. The first body member 108 is attached to the container 104 by a valve welding 126, or alternatively by other similar fastening methods such as, threads or epoxies. The valve 102 further includes a diaphragm 112, which will be discussed in more detail below. Figure 2 also depicts the first body member passageway 122 and second body member passageway 124, which together form a passageway for liquid to pass through the valve 102. The second body member passageway 124 preferably includes a second body member passageway constriction 117. The large black arrows depict the liquid flow direction through the valve 102 when suction is applied to the end of the first body member 108.
Further, the diaphragm 112 is arranged and supported within the valve 102 by a diaphragm support 114 and the diaphragm seat 120. The diaphragm 112 is snuggly seated between the diaphragm support 114 and the diaphragm seat 120. This arrangement creates a diaphragm first area 116 and a diaphragm second area 118, both of which are part of the novelty of the present valved liquid dispenser 100.
Figure 3A illustrates a cross-section view of the first body member 108 of the embodiment of Figure 2. As shown, the first body member 108 includes a first body member opening 128. Figure 3B illustrates the valve side end view of the first member 108. The valve side of the first body member 108 is opposite the first body member opening 128. This view illustrates a plurality of first body member orifices 130, which are orifices for liquid to flow from the container to the suction side of the valve 102. The first body member 108 also includes a diaphragm support 114. Figure 3C illustrates the suction side end view of the first member 108.
Figure 4A illustrates a cross-section view of diaphragm 112 of the present valved liquid dispenser 100, which includes a diaphragm hub 132 and a diaphragm body 134. The diaphragm hub 132 is shaped so as to support and align the diaphragm 112 on the diaphragm support 114. Further, the shape of the proximal and distal ends of the diaphragm hub 132 may be contoured to enable precise fluid flow within the valve body 106, as is shown in Figure 4A. Figure 4B illustrates a top view of the diaphragm 112. This view illustrates diaphragm body indentations 136, which further contribute to the novelty of the present valved liquid dispenser 100.
Figure 5A illustrates a cross-section view of the second body member 110 of the present embodiment of the valved liquid dispenser 100. Second body member 110 includes a second body member orifice 138 and a second body member opening 140. The second body member orifice 138 may be tapered, narrowed or contoured relative to the second body member passageway 124, to direct the liquid toward the central portion of the diaphragm 112. It can also be tapered to decrease the volume of liquid that contacts the diaphragm first area 116. Figure 5B illustrates a container side end view of the second body member 110 and Figure 5C illustrates a valve side end view of the second body member 110. Figure 6A illustrates a cross-section view of another aspect of the diaphragm of the present embodiment of valved liquid dispenser 100. In this aspect, the diaphragm 142 is thinner than diaphragm 112. Diaphragm 142 includes diaphragm hub 144 and diaphragm body 146. Figure 6B illustrates a top view of the diaphragm of Figure 6A including diaphragm indentations similar or identical to those of the diaphragm body indentation 136 of Figure 4B.
In yet another aspect of the present valved liquid dispenser 100, Figure 7A illustrates diaphragm 148, which includes a diaphragm hub 150 and a diaphragm body 152. In addition, diaphragm 148 includes a diaphragm ridge 154, which increases the sealing area between the diaphragm 148 and the diaphragm seat 120. Figure 7B illustrates a top view of the diaphragm of Figure 7A and shows the location of the diaphragm ridge 154.
Figures 1A - 7B illustrate an embodiment of the present embodiment 100 of the valve 102 for dispensing liquids. In another embodiment of the valve for dispensing liquids, a different diaphragm is used with a different support structure. Figure 8 illustrates a cross-section view of another embodiment 200 of the valve 202 of the present valved liquid dispenser that includes a valve body 206. The valve body 206 can be comprised of a one-piece housing (not shown) or the valve body 206 can be comprised of two or more pieces, such as the two shown in Figure 8. The valve body 206 includes a first body member 208 and a second body member 210. The first body member 208 and the second body member 210 are connected together by threads, or alternatively by other similar type fastening methods such as, welded joints, epoxies, resins, glues, screws, or tape. The first body member 208 is attached to the container 204 by a valve welding 226, or alternatively by other similar fastening methods such as, threads or epoxies. The valve 202 further includes a diaphragm 212, which will be discussed in more detail below. Figure 8 also depicts the first body member passageway 222 and second body member passageway 224, which together form a passageway for liquid to pass through the valve 202. The second body member passageway 224 preferably includes a second body member passageway constriction 217. The large black arrows depict the liquid flow direction through the valve 202 when suction is applied to the end of the first body member 208.
Further, the diaphragm 212 is arranged and supported within the valve 202 by a diaphragm support 214 and the diaphragm seat 220. The diaphragm 212 is snuggly seated between the diaphragm support 214 and the diaphragm seat 220. This arrangement creates a diaphragm first area 216 and a diaphragm second area 218, both of which are part of the novelty of the present valved liquid dispenser 200. Figure 9A illustrates a cross-section view of first body member 208 of the embodiment of the present valved liquid dispenser 200. Figure 9A illustrates a cross-section view of the first body member 208 of the valve 202. As shown, the first body member 208 includes a first body member opening 228. Further, the first body member 208 includes one or more of the diaphragm supports 214, to support the diaphragm 212. Figure 9B illustrates the valve side end view of the first member 208. This view illustrates a plurality of first body member orifices 230, which are orifices for liquid to flow from the container to the suction side of the valve 202. Figure 9C illustrates the suction side end view of the first member 208.
Figure 10A illustrates a cross-section view of the diaphragm of the diaphragm 212 of the present valved liquid dispenser 200, which includes a diaphragm hub 232 and a diaphragm body 234. The diaphragm hub 232 includes a diaphragm slit 236. Figure 10B illustrates a container side top view of the diaphragm 212. This view illustrates diaphragm body indentations, similar to those of diaphragm body indentation 136 of Figure 4B. Figure 11A illustrates a cross-section view of the second body member 210 of the present embodiment of the valved liquid dispenser 200. Second body member 210 includes a second body member orifice 240 and a second body member opening 238. The second body member orifice 240 may be tapered, narrowed or contoured relative to the second body member passageway 224, to direct the liquid toward the central portion of the diaphragm 212. It can also be tapered to decrease the volume of liquid that contacts the diaphragm first area 216.
Figure 11 B illustrates a container side end view of the second body member 210 and Figure 11C illustrates a valve side end view of the second body member 210.
In Figure 12 another aspect of the first body member 242 is illustrated, depicting slightly longer diaphragm supports 244 than those shown in diaphragm support 214 of Figure 9A. These slightly longer diaphragm supports 244 are for supporting slightly thinner diaphragms, such as diaphragm 246 shown in Figure 13A. Figure 13A illustrates a cross-section view of another aspect of the diaphragm 246 of the present valved liquid dispenser 200, which includes a diaphragm hub 248 and a diaphragm body 250. The diaphragm hub 248 includes a diaphragm slit 252 and a diaphragm ridge 254. Figure 13B illustrates a container side top view of the diaphragm 246. This view illustrates diaphragm body indentations, similar to those of diaphragm body indentation 136 of Figure 4B.
Figure 14 illustrates a cross-section view of the first embodiment of the valve with the diaphragm 112 in operation. The outer circumference of the diaphragm 112 is illustrated slightly bent towards the first body member passageway. The present valved liquid dispenser 100 is preferably used with containers
104 that are preferably collapsible. These containers 104 are commonly known and include sacks, bags, packets, and pouches that are capable of containing liquids. In addition, containers 104 can be flexible or rigid. The present valved liquid dispenser 200 is preferably used with containers 204 that are preferably flexible. These containers are commonly known and include sports bottles, drink bottles, and plastic bottles. Furthermore, containers 204 can be flexible or rigid.
Diaphragms 112, 142, and 148 are preferably one piece, but may comprise several pieces. Diaphragms 212 and 246 are preferably one piece, but may be two pieces as shown by diaphragm 246. Diaphragms 112, 142, 148, 212, and 246 can also be made of differing thickness depending on their composition. Diaphragms 112, 142, 148, 212, and 246 are preferably comprised of a flexible or soft material such as TPE, TPR, TPO, Thermoset elastomer, plastics, rubbers, polyolefins, and any combinations, blends, and copolymers of the above. TPE means a thermoplastic vulcanizate or thermoplastic elastomer alloys and include Butyl/polypropylene, EPDM/polypropylene or other soft elastomeric material. TPR means thermoplastic rubber alloys and include soft elastomeric materials. TPO means thermoplastic elastomer polyolefin blends with thermoset rubber. Thermoset elastomers include EDPM, silicone, HNBR, NBR, Butyl, Viton, Nitrile, Neoprene, Natural rubber, SBR, and Kypalon. The thickness of diaphragms 112, 142, 148, 212, and 246 vary according to their composition. Preferably, diaphragms 112, 142, 148, 212, and 246 thickness ranges between 0.001 to 1 inch.
The diameter of diaphragms 112, 142, 148, 212, and 246 varies depending on the technology of the molding processes and the desired uses of the valved liquid dispensers 100 and 200. Preferably, the diameter of diaphragms 112, 142, 148, 212, and 246 ranges between 0.025 to 12 inches.
Diaphragms 112, 142, 148, 212, and 246 preferably include diaphragm body indentation 136, as shown in Figure 4B. These diaphragm body indentations 136 preferably are shaped or contoured to decrease the suction required to operate the valves 102 and 202 and to increase the volume or flow of liquid that can flow through the valves 102 and 202. The shape of these diaphragm body indentations 136 may be any shape that enables the flow of liquid while retaining the novel characteristics of the valve. Some shapes of the circumference of the diaphragms 112, 142, 148, 212, and 246 include non-uniform or asymmetrical shapes, such as circular, elliptical, oblong, oval, and star-shaped. These circumference shapes comprise the diaphragm body indentations 136.
Diaphragm hub 234 includes a diaphragm slit 252 and diaphragm hub 248 includes a diaphragm slit 252. These slit arrangements are also commonly known as duckbills or other venting valves such as flapper valves and ball check valves. These duckbill arrangement can be one piece, such as diaphragm hub 234 or can be two or more pieces, such as diaphragm hub 248. When the diaphragm hub is several pieces, the diaphragm slit 252 and the diaphragm hub 248 can be the same or different compositions of the materials mentioned above. For example, in Figure 13A diaphragm body 234 is LDPE or similar material and diaphragm slit 252 comprises TPE, Thermal set rubber, or other similar material.
Diaphragm body ridge 154 and 254 may be a single ridge or a plurality of ridges, preferably the number of ridges is between 1 and 100. The diaphragm body ridge 154 and 254 increase the sealing area between the diaphragm seat 120 and 220 and the diaphragms. Further, diaphragm body ridge 154 and 254 assists in sealing, between the diaphragm seat 120 and 220 and the diaphragms, when pulpy, fibrous or viscous material or liquid is dispensed through the valves 102 and 202.
Valve body 106 and 206 may be comprised of a rigid moldable material. Preferably valve body 106 and 206 are comprised of a material selected from copolyester, polystyrene, ABS, PC, ABS/PL blend nylons, polyacetal, copolymer nylon, ABS (Acrylonitrile Butadiene Styrene), polypropylene, polycarbonate, and polyethylene. Further, the composition of valve body 106 and 206 may be blends of the above stated materials or other materials that provide a rigid body. In addition, since the first body members 108 and 208 and second body members 1 10 and 210 are molded or hand made parts, they can be of any dimension
As mentioned above, diaphragm supports 214 and 244 may be different lengths to support diaphragms 212 and 246 of differing thicknesses Also, diaphragm supports 214 and 244 may comprise one, two or more supports Preferably, the first body member 208 includes four diaphragm supports 214 and 244, respectively.
The diaphragm support 214 functions by supporting the diaphragms 212 and 246 between the diaphragm seat 220 and the diaphragm support 214, while allowing the diaphragms 212 and 246 to flex or bend when under suction or negative pressure is applied to the first body member opening 228 Diaphragms 112, 142, and 148 and their respective diaphragm hubs 132, 144, and 150 support the diaphragms 112, 142, and 148 against the diaphragm seat 120 so as to allow the diaphragms 112, 142, and 148 to bend or flex when suction or negative pressure is applied to the first body member opening 128 The diaphragm support 244 operates in the same manner.
The amount of suction required to operate the valves 102 and 202 depends on several factors Furthermore, some of these factors contribute to the novel feature of the valve to overcome positive pressures created by compressive forces placed on the containers 104 and 204 One such factor is the width of the second body member passageway constrictions 117 and 217 These second body member passageway constrictions 117 and 217 direct the flow of liquid toward the central portion of the diaphragms 112, 142, 148, 212, and 246 As the width of the second body member passageways 124 and 224 are increased, more diaphragm surface area is exposed to the liquid pressure and therefore less suction is required to activate the valves 102 and 202
In addition, another factor is the thickness and composition of material of the diaphragm body 134, 146, 152, 234, and 250 For example, if diaphragm body 134, 146,152, 234, and 250 is composed of a LDPE type material or other similar material, then the thickness would be less than if it were composed of a more soft or flexible material, such as TPE In other words, the thickness and composition of the diaphragm body 134, 146,152, 234, and 250 can be varied depending on use, container and desired application For a soft flexible material, the diaphragm body 134, 146, 152, 234, and 250 would be a greater thickness than for material of less soft material.
Further, another factor is the diameter of the diaphragm first areas 116 and 216 relative to the diameter of the diaphragm body 134, 146, 152, 234, and 250. Where the diameter of the diaphragm body 134, 146, 152, 234, and 250 is substantially wider than the diaphragm first areas 116 and 216, the greater resistance to positive pressure within the containers 104 and 204 the valves 102 and 202 will be able to oppose.
The above-described valves 102 and 202 can be used with all types of containers. Preferably, the valve 202, as described herein, can be used with flexible sports bottles to provide a sports bottle with a hand-free top. Moreover, valve 202 can be used with flexible soft drink bottles and containers. Furthermore, valve 202 can be used in all types of liquid containers, besides liquid dispensers. For instance, when a user pumps liquid soap from a dispenser, negative pressure is created within the container. This negative pressure may be equalized with the atmospheric pressure by the use of the valve 202. In addition, valve 202 can be welded to empty collapsible containers that will be filled at a later time.
Preferably, valve 102 can be used with collapsible drink containers such as children's collapsible drink containers or boxes. In addition, valve 102 can be used with the soft drink syrup storage boxes that presently have connections that leak when connecting and disconnecting from the delivery system, valve 102 as described herein would eliminate this leaking problem.
Further, the valves 102 and 202, as described herein, could be used with all types of bottles, cans, jars and boxes that contain and dispense liquids, fluids, and other types of flowable matter.
The valved liquid dispenser 200 may be filled by connecting the valve 202 to an apparatus that is provides liquid under positive pressure and allowing the liquid to flow through the diaphragm slit 236 into the container 204. In this aspect of this process, an empty container 204 is attached to a valve 202 and then filled by the apparatus.
Variations on the material of the diaphragms, containers, and bodies may be made to accommodate other uses or desires of the present valved liquid dispenser. The present embodiments are, therefore, to be considered in all aspects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than the foregoing description.

Claims

What is claimed:
1. A valved liquid dispenser comprising: a container having at least one opening; a valve body having a proximal end opening and a distal end opening and defining an axial passageway therebetween, said distal end opening in contact with said at least one container opening; a diaphragm support means located within said axial passageway; a diaphragm seat means located within said axial passageway; and a diaphragm means, sealingly engaged within said axial passageway and supported between said diaphragm seat means and said diaphragm support means, responsive to negative pressure at said proximal end opening and non- responsive to positive pressure at said distal end opening.
2. The valved liquid dispenser of claim 1 wherein said diaphragm support means comprises: pronged support means for supporting said diaphragm means and not preventing said liquid to flow through said axial passageway.
3. The valved liquid dispenser of claim 1 wherein said diaphragm seat means comprises: an axial passageway constriction means for supporting said diaphragm means and directing said liquid toward a central part of said diaphragm means.
4. The valved liquid dispenser of claim 1 wherein said diaphragm means comprises: a venting means for venting air back into said container to equalize pressure.
5. The valved liquid dispenser of claim 4 wherein said venting means is selected from the group consisting of duckbills, flapper valves, and ball check valves.
6. The valved liquid dispenser of claim 1 wherein said valve body comprises: a first body member and a second body member, wherein said first body member and a second body member are joined substantially near said diaphragm means.
7. The valved liquid dispenser of claim 1 wherein said valve body is a material selected from the group consisting of copolyester, polystyrene, ABS, PC, ABS/PL blend nylons, polyacetal, copolymer nylon, ABS (Acrylonitrile Butadiene Styrene), polypropylene, polycarbonate, and polyethylene.
8. The valved liquid dispenser of claim 7 wherein said material further comprises blends and copolymers of said materials.
9. The valved liquid dispenser of claim 1 wherein said diaphragm is a material selected from the group consisting of an elastomeric material.
10. The valved liquid dispenser of claim 1 wherein said diaphragm is a material selected from the group consisting of TPE, TPR, TPO, Thermoset elastomer, plastics, Butyl/polypropylene, EPDM/polypropylene, EDPM, silicone, HNBR, NBR, Butyl, Viton, Nitrile, Neoprene, Natural rubber, Polyolefins, SBR, and Kypalon.
11. The valved liquid dispenser of claim 10 wherein said material further comprises blends and copolymers of said materials.
12. A beverage dispenser operable by a user applying suction comprising: a container having at least one opening; a valve body having a proximal end opening and a distal end opening and defining an axial passageway therebetween, said distal end opening in contact with said at least one container opening; a diaphragm support located within said axial passageway; a diaphragm seat located within said axial passageway between said distal end opening and said diaphragm support, said diaphragm seat comprising a constricted section of said axial passageway; and a diaphragm sealingly engaged within said axial passageway, said diaphragm having a diaphragm hub and a diaphragm body, wherein said diaphragm is supported between said diaphragm seat and said diaphragm support, said diaphragm hub and said axial passageway define a diaphragm first area adjacent said distal end opening and said hub and said passageway define a diaphragm second area adjacent said proximal end opening, whereby said diaphragm body flexes toward said proximal end opening when suction by said user is applied to said proximal end opening and said diaphragm body doesn't flex toward said proximal end opening when positive pressure is applied to said distal end opening.
13. The beverage dispenser of claim 12 wherein said axial passageway further comprises a first body member passageway and a second body member passageway.
14. The beverage dispenser of claim 13 wherein said second body member passageway comprises a second body member passageway constriction.
15. The beverage dispenser of claim 14 wherein said constriction section is hour-glass shaped.
16. The beverage dispenser of claim 12 wherein said diaphragm hub comprises a duckbill, said duckbill extending substantially toward said distal end opening.
17. The beverage dispenser of claim 12 wherein said diaphragm support comprises: prongs extending substantially parallel to said axial passageway from said diaphragm support toward said distal end opening to support said duckbill.
18. The beverage dispenser of claim 12 further wherein said diaphragm further includes a circumference.
19. The beverage dispenser of claim 17 wherein said circumference is asymmetrical.
20. The beverage dispenser of claim 19 wherein said asymmetrical circumference is selected from the group consisting of circular, elliptical, oblong, oval, and star-shaped.
21. A beverage valve comprising: a first body member having a first body member proximal end and a first body member distal end; a second body member having a second body member proximal end and a second body member distal end, wherein said first body member distal end and said second body member proximal end are sealingly connected to create an axial beverage passageway therebetween; and a flexible diaphragm sealingly engaged with said axial beverage passageway, wherein said flexible diaphragm defines a plug to prevent said beverage from flowing from said second body member distal end to said first body member proximal end, and said diaphragm defines a passageway from said body distal end to said housing proximal end when suction is applied to said distal end.
22. The valve of claim 21 wherein said flexible diaphragm is a material selected from the group consisting of TPE, TPR, TPO, Thermoset elastomer, plastics, Butyl/polypropylene, EPDM/polypropylene, EDPM, silicone, HNBR, NBR, Butyl, Viton, Nitrile, Neoprene, Natural rubber, Polyolefins, SBR, and Kypalon.
23. The valve of claim 21 wherein said first body member and said second body member is a material selected from the group consisting of copolyester, polystyrene, ABS, PC, ABS/PL blend nylons, polyacetal, copolymer nylon, ABS (Acrylonitrile Butadiene Styrene), polypropylene, polycarbonate, and polyethylene.
24. A method for dispensing a liquid from a dispenser operable by applying suction, said dispenser comprising a container having at least one container opening; a valve body having a proximal end opening and a distal end opening and defining an axial passageway therebetween, said distal end opening in contact with said at least one container opening; a diaphragm support located within said axial passageway; a diaphragm seat located within said axial passageway between said distal end opening and said diaphragm support, said diaphragm seat comprising a constricted section of said axial passageway; and a diaphragm sealingly engaged within said axial passageway, said diaphragm having a diaphragm hub and a diaphragm body, wherein said diaphragm is supported between said diaphragm seat and said diaphragm support, said diaphragm hub and said axial passageway define a diaphragm first area adjacent said distal end opening and said hub and said passageway define a diaphragm second area adjacent said proximal end opening, said method comprising: applying suction to said proximal end opening; flexing said diaphragm toward said proximal end opening when suction is applied by said user to said proximal end opening; flowing liquid through said passageway; and dispensing said liquid from said proximal end opening.
25. A method for filling a valved liquid dispenser with liquid, said valved liquid dispenser comprising a container having at least one opening; a valve body having a proximal end opening and a distal end opening and defining an axial passageway therebetween, said distal end opening in contact with said at least one container opening; a diaphragm support located within said axial passageway; a diaphragm seat located within said axial passageway between said distal end opening and said diaphragm support, said diaphragm seat comprising a constricted section of said axial passageway; a diaphragm sealingly engaged within said axial passageway, said diaphragm having a diaphragm hub and a diaphragm body, wherein said diaphragm is supported between said diaphragm seat and said diaphragm support, said diaphragm hub and said axial passageway define a diaphragm first area adjacent said distal end opening and said hub and said passageway define a diaphragm second area adjacent said proximal end opening, said method comprising: connecting an apparatus capable of dispensing liquid under pressure to said proximal end opening; dispensing said liquid through said valve; and filling said container.
PCT/US2004/013981 2003-05-06 2004-05-05 Valve for dispensing liquids and method of use WO2004101382A1 (en)

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