WO2002030236A2 - Improved fluid applicator - Google Patents
Improved fluid applicator Download PDFInfo
- Publication number
- WO2002030236A2 WO2002030236A2 PCT/US2001/031445 US0131445W WO0230236A2 WO 2002030236 A2 WO2002030236 A2 WO 2002030236A2 US 0131445 W US0131445 W US 0131445W WO 0230236 A2 WO0230236 A2 WO 0230236A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- applicator
- tines
- actuator
- application area
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 203
- 230000037361 pathway Effects 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 35
- 239000000470 constituent Substances 0.000 claims description 3
- 210000004761 scalp Anatomy 0.000 description 27
- 230000000670 limiting effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 9
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- 238000009826 distribution Methods 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 208000001840 Dandruff Diseases 0.000 description 4
- 210000005241 right ventricle Anatomy 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000006210 lotion Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 229940075285 dandruff control Drugs 0.000 description 2
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- 238000001746 injection moulding Methods 0.000 description 2
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- 239000004800 polyvinyl chloride Substances 0.000 description 2
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- 230000001050 lubricating effect Effects 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000001333 moisturizer Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
- A61H7/002—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing
- A61H7/003—Hand-held or hand-driven devices
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D24/00—Hair combs for care of the hair; Accessories therefor
- A45D24/22—Combs with dispensing devices for liquids, pastes or powders
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1046—Brush used for applying cosmetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0115—Constructive details used in water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/10—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
- A61H2201/105—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy with means for delivering media, e.g. drugs or cosmetics
Definitions
- the present invention relates to an improved fluid applicator, and more particularly, to a combination applicator for manually massaging and applying a fluid to the skin or scalp.
- Fluid applicators and massage devices are used to manually massage the skin or scalp, as well as to apply various lubricating and moisturizing liquids. While such liquids and massages can be applied manually, numerous types of devices have been developed to simplify and enhance the process. Applicators for dispensing fluid product and for applying and/or "working" the product onto or into a surface have been combined into a single device to help improve the distribution of a medication, lotion, treatment or other fluid that has been applied, for example, to the skin or scalp. Examples of such fluids may include dandruff preventing medication, tanning lotion, moisturizer, sun screen or hair growth treatment. Moreover, although typical devices are used for human applications, in some cases the applicators could be used to apply liquid fluids such as flee/tick killer to the coat of a pet or other animal.
- One of the further drawbacks to a typical prior art fluid applicator is that most of these applicators fail to thoroughly apply a fluid to a desired area such as on the skin or scalp. For example, although many prior art applicators deliver a fluid to the skin or scalp, most fail to promote intimate contact between the applicator and the target surface. Such failure typically results in excessive use or waste of the fluid due to inadequate delivery of the fluid to the regions to be treated. As a result, it would be advantageous to have an improved fluid applicator that facilitated contact between the applicator and the targeted delivery surface, and provided for a more convenient and accurate placement of the fluid dose.
- a fluid applicator comprises a body having a fluid inlet in communication with a reservoir of fluid to be dispensed.
- the body also comprises a front end and a rear end.
- the applicator further includes a plurality of applicator tines extending outwardly from an application area of the body, wherein the tines are at least partially flexible and wherein at least some of the tines could comprise a fluid pathway.
- the applicator will further include a handle portion generally above the application area.
- the applicator could include an actuator located on the body adjacent the front end and generally above and off- center from the applicator area. The actuator should be operably configured to selectively dispense a predetermined amount of fluid to the fluid pathways.
- a fluid applicator comprises a body configured to accommodate a fluid reservoir and also comprises a handle area and an application area.
- the applicator further includes a plurality of applicator tines integrally attached to an underside of the body wherein at least some of the plurality of tines comprise a fluid pathway.
- the applicator could comprise a pump having a fluid inlet in communication with the reservoir and a fluid outlet integrally connected to a manifold system.
- the manifold system has a plurality of passageways configured to deliver a substantially consistent predetermined portion of fluid to the fluid pathways.
- the applicator is provided with an actuator moveably connected to the body that is operably configured to selectively dispense a predetermined amount of fluid to the fluid pathways.
- Fig. 1. depicts a perspective view of an exemplary embodiment of an improved fluid applicator in accordance with the present invention
- Fig. 2. depicts a partially exploded view of some of the components of the applicator of Fig. 1 in accordance with the present invention
- Fig. 3. depicts a bottom plan view of an exemplary embodiment of a fluid applicator of the present invention
- Fig. 4. depicts a front elevational view of an exemplary embodiment of an improved fluid applicator in accordance with the present invention
- Figs. 5a. and 5b. depict a portion of an exemplary embodiment of the present invention, including a fluid pumping arrangement
- Figs. 6a. and 6b. depict a portion of an exemplary embodiment of the present invention, including details of a manifold system
- Fig. 7. illustrates a top plan view of an exemplary embodiment of an improved fluid applicator in accordance with the present invention, and showing its application area in phantom;
- Fig. 8. depicts a cross-sectional view of an alternate embodiment of a fluid applicator of the present invention.
- Fig. 9. depicts a partial, enlarged view of a portion of an exemplary embodiment of the present invention.
- Figs. 10a. and 10b. depicts an alternate embodiment of an applicator system in accordance with the present invention.
- Fig. 1 depicts a non-limiting exemplary embodiment of an improved fluid applicator 10 made in accordance with the present invention.
- the improved fluid applicator 10 comprises a body 15 having a front end 25 and a rear end 35.
- the body 15 is further comprised of a base 20, a bezel 30 and a cover 40, wherein the bezel 30 and cover 40 are configured for integral connection with the base 20.
- a bezel 30 could engage a base 20 in any number of ways, in an exemplary embodiment of the invention, the bezel 30 is designed to securely snap into engagement. For example, as illustrated in Fig.
- the bezel 30 may comprise a plurality of pegs 32 that are configured to engage a corresponding plurality of connectors 37 integrally formed with or attached to the base 20. While these parts could be permanently attached, as will be further understood from the description herein, it may be desired in some applications to make at least some of these parts selectively disengageable for ease of manufacture, replacement of expendable parts, repair, cleaning or the like.
- the components of the body 15, namely the base 20, the bezel 30 and the cover 40 could be manufactured from nearly any type of material such as plastic resin, but in an exemplary embodiment of the invention, these components are manufactured from a lightweight and durable thermoplastic material such as polypropylene, polyethylene, polyester, polycarbonate or polyvinylchloride.
- the base 20 and the bezel 30 could be designed and manufactured as a single integral component, or as an assembly of any number of parts.
- the cover 40 is configured to engage both a base 20 and a bezel 30.
- a cover 40 could engage either of these components in a variety of ways, in a non-limiting embodiment of the invention, the cover 40 slidably contacts the base 20 along a rim 42 and also snaps into engagement with the bezel 30. In this way, the cover 40 can be readily disengaged and removed when desired.
- the bezel 30 may further include a slot 55 having a cavity 57, and one end of the cover 40 may further include a tab 50 having a protuberance 58.
- the tab 50 or similar structure, could slidably engage the slot 55 so that the protuberance 58 snaps into engagement with the cavity 57 for selective captive interaction.
- the base 20 could further comprise a lip 63 located near the rear end 35 of the base 20, which is configured to engage an inner portion of the rim 42 of the cover 40.
- the lip 63 on the base engages an inner portion of the rim 42, thereby allowing the cover 40 to be securely attached to both the bezel 30 and the base 20.
- the tab 50 is designed such that manually depressing a portion of the cover 40 near the tab 50 causes the protuberance 58 to disengage from the cavity 57, allowing the cover 40 to be easily, slidably removed and replaced. This feature allows access to the interior of the body 15 for cleaning, repair or replacement of an optionally permanent, interchangeable, orrefillable fluid applicator 10.
- a reservoir 120 is defined within the body
- a reservoir 120 is used to house a medication, lotion, treatment or other fluid that is to be applied to the skin or scalp.
- the reservoir 120 houses refillable, replaceable and/or interchangeable cartridges or packets.
- the reservoir 120 could house individualized packets of a fluid, such as a dandruff control medication, that are replaceable upon expiration or depletion, or interchanged with a packet containing an alternate type of fluid such as a hair growth treatment.
- the use of such replaceable and interchangeable packets within the reservoir facilitates the use of the applicator 10 in either a wet or dry environment.
- the applicator 10 could be designed such that the entire applicator is disposable. In other words, it is conceivable that the applicator 10 be designed such that the reservoir 120 is neither refillable nor replaceable.
- the applicator 10 could be manufactured with a particular type of fluid, such as a dandruff control medication, housed in the reservoir, and upon expiration or depletion of the liquid product, the user would dispose of the applicator and purchase another.
- an exemplary embodiment of the present invention might comprise a plurality of application tines 60 extending outwardly from an application area 70 of the body 15, such as on the underside of the base 20.
- the shape, number, physical characteristics and pattern of the tines 60 could vary depending on the applications and other preferences for comfort, ornamental appearance, cost objectives and the like.
- the application tines 60 are arranged in an at least semi-circular overall pattern within a substantially oval shaped application area 70.
- at least some of the applicator tines 60 should further comprise a fluid pathway 90 to allow a fluid to be dispensed through the tine 60, as will be discussed below.
- the total area on the body 15 can be further defined by an application area 70 and a handle area 80.
- the application area 70 is defined by the area that comprises a pattern associated with an arrangement of the application tines 60.
- the application area 70 is the semi-circular area (e.g. a substantially oval-shaped area in Fig. 3) encompassing the plurality of application tines 60.
- the area outside the application area 70 is termed the handle area 80, as it provides a gripping area for use of the applicator.
- the handle area 80 can encompass every portion of the applicator 10 other than the application area 70.
- an applicator 10 of the present invention can be designed in a compact and ergonomic manner so as to easily fit in an average person's hand and should be easy to grip.
- the application area 70 might best be less than about 80% of the total area on the underside of the base 20, and more desirably less than about 50% of the total area on the underside of the base 20.
- the improved fluid applicator 10 has a total of seven tines; six application tines 60 located on the periphery of the application area 70 and one "dummy" or non-dispensing tine 65 located near the center of the application area 70.
- the applicator tines 60 are generally of equal length and comparably longer than the dummy tine 65 due to the contoured, generally convex shape of the scalp.
- the shorter dummy tine 65 generally allows each of the tines 60, including the dummy tine 65,. to have intimate contact with the scalp, thus allowing each tine to stimulate a portion of the skin or scalp.
- dummy tines 65 can also be beneficial to facilitate and simplify the manufacturing and molding process for the applicator 10. It should be recognized, however, that the dummy tine 65 could be manufactured to a variety of lengths depending on the designated use of the applicator 10. For example, it is conceivable that the dummy tine 65 be manufactured of equal or greater length than the application tines 60, if the applicator 10 were required to be used on a flat, concave or multidimensional surface.
- each applicator tine 60 includes a base portion 110 adjacent its proximal end and a tip portion 100 adjacent its distal end, wherein the base portion
- the base portion 110 of the tines 60 should generally be more rigid in nature than the tip portion 100.
- the base portion 110 should be stronger, reinforced, or thicker than the otherwise more flexible, compressible, thinner or less strong tip, either by structural design and/or material selection or variation.
- the tine base should be substantially rigid to provide support to the flexible tine tips and should facilitate application dispensing and/or massaging as desired.
- the tip portion 100 having a length generally illustrated by a distance L ls should be generally soft to the touch, flexible and compressible. These characteristics should provide the application tines 60 and the dummy tine 65 with a unique combination of good skin/scalp stimulation while also providing a pleasant feel upon contact. Additionally, because the tip portion 100 facilitates intimate contact with the skin or scalp, it should also help optimally disperse any fluid and optimize the amount of fluid used to treat a particular area.
- the total length of the applicator tines 60 should preferably range in total length from about from about 15 mm to about 20 mm, wherein the tip portion 100, defined by distance L i( preferably ranges in length from about 2 mm to about 10 mm, with the base portion 110 comprising the remainder.
- the diameter of the tines at the base portion 110 adjacent the body 15 should range in width from about 7 mm to about 11 mm, and the diameter of the application tines 60 at the tip portion 100 adjacent the distal end should range in width from about 2 mm to about 4 mm.
- tines 60 from a single material such as polypropylene, polyethylene, thermoplastic elastomer or other material having similar characteristics, it may be difficult to create tines 60 as a single structure or single material having a sufficiently rigid base and flexible and compressible tip portion 100, given the structural features that would need to be taken into account such as wall thickness, length, width, geometric configuration, etc. Overall, the use of a single material may either provide too rigid a tip portion 100 or too flexible a base portion 110, thereby limiting the usefulness of the applicator 10.
- the application tines 60 including the dummy tine 65 could be more conveniently or simply manufactured from different material constituents, such as a more rigid material for the base portion 110, and a relatively soft, flexible and compressible material for the tip portion 100.
- the tines 60 including the dummy tine 65 could be manufactured using a two-shot injection molding manufacturing process.
- the base portion 110 of the tines 60 and the dummy tine 65 might be manufactured as a single integrated component of the base 20 due to the desired substantially rigid nature of both structures. Manufacturing this integrated component comprises the first shot in the two-shot manufacturing process.
- a suitable material may include polypropylene Pro-fax SR-549M such as available from Montell, although, other thermoplastic materials such as polypropylene, polyethylene, polyester, polycarbonate or polyvinylchloride would also be suitable for this purpose.
- the selection of such a material might best include materials having a flexible modulus of about 50,000 psi to about 200,000 psi, wherein flexible modulus is defined as the ratio of stress to corresponding strain within an elastic limit.
- the second shot of the contemplated two-shot manufacturing process comprises molding of an outer tine material over the base tines, and perhaps over the entire application area 70 including the base tines, to create the soft, flexible and compressible tip portion 100 associated with the application tines 60 and dummy tine 65.
- this outer tine material could be formed to the base 20 in a variety of ways, in one embodiment of the invention, the outer tine material is chemically bonded over the entire application area 70 due to the compatibility of the materials selected. Put another way, the chemical properties of the constituent materials allow the materials to be selectively bonded in a chemical process. Other methods of bonding the multiple- layers may include the use of adhesives or other alternative mechanical processes.
- the entire application area 70 comprises an inner portion manufactured with a rigid material to provide the base of the tines, and an outer portion or surface manufactured with a soft to the touch, flexible and compressible material to provide the tip of the tines.
- the outer tine material comprising the tip portion 100 can be manufactured using a soft, flexible and compressible material such as Nersaflex ST1025-X, as available from GLS
- thermoplastic elastomer santoprene rubber or other material having similar characteristics
- the selection of such a material should also be directed to the particular application. For example, in a scalp type product application a durometer hardness between about 10 Shore A to about 80 Shore A, and better yet between about 35 Shore A and about 50 Shore A, might be desired, wherein durometer hardness is measured based on initial indentation of the material or indentation after a specified period of time.
- the outer tine material from which the application tines 60 and dummy tine(s) 65 are manufactured might be chosen so as to have a high coefficient of friction prior to dispensing a fluid from the applicator 10, and upon dispensing the fluid, the coefficient of friction may be reduced to allow the tines to easily move over the surface being treated. Such friction characteristics might improve the product application process and improve the overall efficiency and acceptability of the applicator.
- the outer tine material could also be treated with a slip agent to reduce the coefficient of friction such that the tines could be readily combed through hair on the skin or scalp.
- the dummy tine 65 can be an important part of the two-shot manufacturing process described, because the tine 65 allows for hot-tip gating in the center (or at another desirable location) of the tine arrangement. Without a center tine 65, center gating might not otherwise be practical because of the compactness of the tine arrangement. Moreover, due to the central location of the dummy tine 65, knit lines can be avoided, which should provide for improved aesthetics and integrity of the application area 70. However, it should also be recognized that an improved fluid applicator 10 could be manufactured, wherein the center-tine 65 could not only be used for the injection molding process, but could also be configured to become a dispensing tine.
- the application tines 60 comprise a fluid pathway 90 to allow a fluid to be dispensed through the tines 60.
- the fluid pathways 90 are in fluid communication with the reservoir 120 such that upon actuation of the applicator 10, fluid is dispensed from each of the plurality of tines. It should be recognized that although the diameter of fluid pathways 90 formed within the applicator tines 60 could vary, in general, the diameter of each fluid pathway 90 should be sufficiently large to prevent the tines 60 from being easily "plugged". Moreover the diameter of the fluid pathway 90 should be sufficiently large accommodate a variety of fluids having differing characteristics.
- the fluid applicator 10 further comprises a fluid source that dispenses fluid through the plurality of applicator tines 10.
- the fluid source could comprise a pump 130 that allows a fluid in the reservoir to be pumped from the reservoir 120 through the tine fluid pathways 90 for application of a fluid to the skin or scalp.
- the pump 130 is connected to a portion of the body 15, such that the pump 130 is securely mounted within a chamber 140 formed within the body 15.
- the pump 130 could be any known device that displaces fluid, such as a mechanical displacement pump, in a non-limiting embodiment of the invention the pump 130 comprises a diaphragm pump configured to deliver a predetermined dosage of fluid to the fluid pathways 90 upon actuation.
- a diaphragm pump configured to deliver a predetermined dosage of fluid to the fluid pathways 90 upon actuation.
- An example of suitable pump can be found in U.S. Patent No. 5,993,180 to Westerhof et al.
- between about .05 ml to about .30 ml of fluid might be dispensed from the applicator 10 per actuation, or more precisely between about 0.1 ml to about 0.2 ml might be dispensed per actuation.
- the predetermined amount or dosage would likely vary among the wide variety of applications for with the present invention can be implemented.
- the diaphragm pump 130 is illustrated as comprising a flexible member 150 having biased characteristics and a memory of an initial position.
- the pump 130 also comprises a fluid inlet 160 that is in fluid communication with a reservoir 120 (e.g. shown in phantom) of a fluid to be dispensed.
- the pump further comprises a fluid outlet 170 that is also in fluid communication with the fluid pathways 90 associated with each of the application tines 60.
- a fluid is drawn from the reservoir 120 on the recovery stroke and dispensed to the fluid pathway 90 of each of the application tines 60.
- the flexible member 150 returns to its initial position, due to the memory of its initial position and the spring back nature of the material, so the process can be repeated.
- the flexible member 150 pulls the fluid into its pumping chamber from reservoir 120, to prime the pump for the next dispensing "shot" or dose.
- a pump 130 could be integrally connected to a manifold system 180.
- the purpose of a manifold system 180 is to distribute a fluid being delivered through the pump 130 to each of the fluid pathways 90 of the plurality of application tines 60.
- the manifold system 180 is comprised of an upper manifold portion 190 and a lower manifold portion 200, which are configured to be engaged. Although these two components could be engaged in a multitude of ways, or unitarily formed, in one embodiment of the invention they are made of plastic and ultrasonically welded. As further depicted in Figs.
- channel walls 210 are embedded as mirror images in both the upper 190 and lower 200 manifold portions to create appropriately sized distribution channels.
- the channels wall 210 have a wall height such that upon engagement of the manifold portions (190, 200), the channel walls 210 define a series of passageways 220 for a fluid to travel.
- the manifold system 180 is designed so that upon manual compression of the flexible member 150 of the pump 130, a substantially consistent predetermined portion of fluid should be dispensed to the individual fluid pathways 90.
- the manifold system 180 can be designed such that upon actuation of the pump 130, each application tine 60 should dispense a consistent dosage of fluid.
- the dosage of fluid being dispensed from each tine 60 does not necessarily have to be equal, rather the dosage dispensed from each tine 60 should be consistent, uniform and repeatable from one actuation to the next.
- each of the corresponding manifold passageways and fluid pathways in the dispensing tines 60 is sized and configured to dispense a substantially equal portion or volume of the fluid through each tine 60.
- the applicator 10 is able to achieve this consistency because, unlike typical applicators in which a fluid is distributed in a serial (i.e. from one tine to another) arrangement, the manifold system 180 in the present invention distributes the fluid in a parallel arrangement.
- the manifold system 180 could distribute a predetermined volume of fluid to each of the plurality of application tines 60 independent of the other tines 60.
- the volume of fluid dispensed by each application tine 60 should not vary by more than about 15%. In this way, more accurate and optimal dispensing and application can be provided.
- the manifold system 180 comprises a "T" shaped passageway 290, wherein upon actuation and dispensing a fluid is expelled by the pump through outlet 170 and into the "T" shaped passageway, wherein approximately 50% of the fluid traverses through the left ventricle 182 of the "T" and 50% traverses through the right ventricle 187 of the "T". Additionally, the manifold system 180 is provided with a pair of plenums 205, configured to receive fluid from its corresponding "T" passageway 290.
- each plenum 205 is joined to three passageways 220 corresponding to three application tines 60. As will be understood, the number of passageways for each plenum can vary as needed.
- each fluid aperture 95 should dispense an substantially equal portion of fluid to each fluid pathway 90 associated with an application tine 60.
- the length of a passageway 220 as defined by the distance between the center of the plenum 205 and each fluid aperture 95 are varied.
- distance di is equivalent in length to distance d 2 due to the linear nature of the passageway.
- distance d 3 should be longer in length than distances di and d 2 to account for the "elbow" located in the passageway 220.
- computational fluid dynamics suggests that for non-Newtonian fluids, shear thinning at an elbow will reduce viscosity, thus increasing the flow rate of the fluid.
- the length of the passageway having the elbow should be longer as compared to the linear passageway 220 to account for the use of a non-Newtonian fluid such as the exemplary dandruff medication.
- distance d 3 is shorter in length than distances di and d 2 .
- passageways 220 are considered equivalent in length because the volume of fluid dispensed from each application tine 60 does not vary by more than about 15%.
- each of the three passageways 220 is equivalent in length and has identical cross-sectional areas, the volume of fluid being dispensed through each fluid aperture 95 to each fluid pathway 90 should nearly be equal.
- the amount of fluid being dispensed through each of the fluid apertures 95 to each fluid pathway 90 associated with each of the application tines 60 should nearly be equal.
- left 182 and right ventricles 187 of the manifold system 180 do not have to be designed as a "mirror images", but may be so designed if an equal distribution of fluid to the plurality of application tines 60 is desired. It will be understood that the design of the manifold system 180 could be altered to account for the use of
- any combination of passageways 220 and/or plenums 205 could be designed to deliver a substantially consistent predetermined portion of fluid to each of the fluid pathways 90 associated with each of the application tines 60.
- the passageways 220 could not only be designed to provide consistent predetermined portions of a fluid, but, if desired, could also be designed to provide substantially equal portions of fluid to each of the application tines 60.
- the purely mechanical method of dispensing a substantially consistent predetermined portion of fluid to each application tine allows the applicator 10 to deliver a consistent amount of fluid regardless of the orientation of the applicator at the time the fluid is being dispensed.
- the applicator dispenses a substantially consistent predetermined portion of a fluid upon actuation of the pump 130. This feature allows for consistent and repeatable treatment of an area regardless of its orientation to the surface to be treated (e.g. skin or scalp).
- the channel walls 210 on the upper manifold portion 190 are narrower in width wi than the channel walls 210 of the lower manifold portion 200 labeled wi'.
- the lower manifold portion 200 fits snug over the upper manifold portion 190.
- This arrangement should facilitate ease of manufacturing by ensuring that the lower manifold portion 200 is similarly situated over the upper manifold 190 for each and every manufactured applicator 10 and should also promote a seal upon engagement of the portions, such as by ultrasonic welding.
- the improved fluid applicator 10 of the present invention further includes an actuator 230 operably configured to selectively dispense a predetermined amount of fluid to the fluid pathways 90.
- the actuator 230 can be located in a variety of locations on the applicator 10, in a non-limiting embodiment of the invention the actuator 230 should generally be located on the body 20 adjacent the front end 25 and above and off-center, as designated by the center line C L , from the center of application area 70, as will be discussed further below. Additionally, in an exemplary embodiment of the invention, the actuator 230 should be at least 10% of the size of the application area 70 to facilitate ease of depressing the actuator 230.
- the actuator 230 may also include an enhanced tactile surface, to facilitate user manipulation, comfort and/or control.
- the actuator 230 might be made using the two-shot manufacturing process comprising a rigid inner material and soft, flexible and compressible outer material.
- Polypropylene Pro- fax SR-549M could comprise the rigid inner material and Monoprene 2850M as available from QST could comprise the soft outer material.
- any material having the desired physical characteristics could provide an equal substitute.
- the off-center position of the actuator 230 results in both a normal force and a transverse force to depress the actuator, as designated by the arrows, F N and F T , respectively.
- the normal force should help facilitate intimate contact between the skin or scalp and the application tines 60, and the transverse force should facilitate repetitive and circular motion that helps stimulate the area being massaged or treated.
- the actuator 230 is reciprocally attached to a portion of the applicator 10.
- the actuator 230 is pivotally attached by a rotatably mounted rod 240 received in a "U" shaped holder or bearing yoke 250 that is integrally connected to the pump and manifold system 180.
- the actuator 230 may further comprise a compressing rod 260, such that in a resting position, the compressing rod 260 is adjacent to or abuts the outer surface of flexible member 150 of the pump 130. Consequently, upon manually depressing the actuator 230 and causing the actuator to pivot, the compressing arm 260 compresses flexible member 150, activating the pump 130.
- both the flexible member 150 and the actuator 230 are returned to their initial positions due to the spring back nature of the flexible member 150. Consequently, the process of manually depressing the actuator 230 to draw additional fluid into the pump chamber for dispensing through the system can be repeated.
- the actuator 230 may further comprise a stopping mechanism or stroke limiter 270 that also acts as a tactile indicator to provide feedback to the user to signal completion of dispensing.
- the stopping mechanism 270 is a distance x from a stopping wall 280, wherein upon manually depressing the actuator 230, the actuator moves until the stopping mechanism 270 abuts the stopping wall 280. Once the stopping v mechanism 270 contacts stopping wall 280, the user feels a positive stop and recognizes that the application is complete.
- various alternative or additional tactile (and/or audible) sensors could be incorporated, such as "clicking" mechanism or the like. Consequently, timing and/or skill on the part of the user is unnecessary to achieve a consistent and uniform dosage with every actuation of the applicator.
- a stopping mechanism 270 or other tactile sensor could be adapted for other purposes.
- a stopping mechanism 270 could be adapted with an alternative mechanical displacement pump to regulate or control the dosage being administered.
- a stopping mechanism 270 protects the flexible member 150 of a diaphragm pump 130 from unnecessary "wear and tear" or abuse by ensuring that the flexible member is limited to moving a certain distance with every actuation.
- the improved fluid applicator 10 could further be provided with a protective closure 300.
- the protective closure 300 could be of a variety of shapes and sizes, in general the closure 300 is designed to encompass the application tines 60 of the applicator 10 and protect them against compression or damage during non-use.
- the walls 320 of the protective closure 300 are generally cylindrical in design and are integrally attached to a flat bottom wall 310. The walls 320 are configured to engage a portion of the appUcator 10 and the flat bottom wall 310 is configured to provide a suitable base within which the fluid applicator 10 can rest.
- Closure 300 could also be designed to sealingly attach to applicator 10 to minimize product dry out, leakage, and/or contamination for storage, travel or child-proof protection.
- the protective closure 300 could further be comprised of a center tine locator 350, which is configured to contact the center tine 65, causing the applicator 10 to be securely positioned in the protective closure 300.
- the closure 300 could further include an actuator lock 340 which should prevent inadvertent dispensing of medication or treatment when the applicator 10 is not in use.
- the actuator lock 340 includes a pair of insert tabs 335, such that when the applicator 10 is at rest in the protective closure 300, the insert tabs 335 rest between an opening 345 defined between the base 20 and the actuator 230, as best seen in Fig. 4.
- the actuator 230 should be prevented from moving, and prevented from inadvertently dispensing a fluid.
- the protective closure 300 could alternatively include a plurality of drainage holes 330, which would more easily allow the product to dry.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA03003135A MXPA03003135A (en) | 2000-10-10 | 2001-10-09 | Improved fluid applicator. |
DE60115680T DE60115680T2 (en) | 2000-10-10 | 2001-10-09 | IMPROVED PACKAGING APPARATUS FOR LIQUIDS |
AU2002214559A AU2002214559A1 (en) | 2000-10-10 | 2001-10-09 | Improved fluid applicator |
EP01983105A EP1324680B1 (en) | 2000-10-10 | 2001-10-09 | Improved fluid applicator |
AT01983105T ATE311786T1 (en) | 2000-10-10 | 2001-10-09 | IMPROVED LIQUID APPLICATION DEVICE |
JP2002533689A JP2004519269A (en) | 2000-10-10 | 2001-10-09 | Improved fluid applicator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/685,777 | 2000-10-10 | ||
US09/685,777 US6588964B1 (en) | 2000-10-10 | 2000-10-10 | Fluid applicator |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002030236A2 true WO2002030236A2 (en) | 2002-04-18 |
WO2002030236A3 WO2002030236A3 (en) | 2003-01-30 |
Family
ID=24753632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/031445 WO2002030236A2 (en) | 2000-10-10 | 2001-10-09 | Improved fluid applicator |
Country Status (8)
Country | Link |
---|---|
US (1) | US6588964B1 (en) |
EP (1) | EP1324680B1 (en) |
JP (1) | JP2004519269A (en) |
AT (1) | ATE311786T1 (en) |
AU (1) | AU2002214559A1 (en) |
DE (1) | DE60115680T2 (en) |
MX (1) | MXPA03003135A (en) |
WO (1) | WO2002030236A2 (en) |
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CN104771301A (en) * | 2014-01-14 | 2015-07-15 | 伽蓝(集团)股份有限公司 | Body nursing device |
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FR2944205B1 (en) * | 2009-04-09 | 2012-08-03 | Oreal | MASSAGE AND DISTRIBUTION ASSEMBLY OF A COSMETIC PRODUCT |
US20110008096A1 (en) * | 2009-07-13 | 2011-01-13 | Coleman Thomas J | Liquid dispenser |
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US20130145624A1 (en) * | 2011-12-09 | 2013-06-13 | Paul Michael Jessemey | Personal-care appliance having pivoting fluid connector |
EP2840929A1 (en) * | 2012-04-27 | 2015-03-04 | The Procter & Gamble Company | Applicator assembly for applying a composition |
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US20140311509A1 (en) * | 2013-04-19 | 2014-10-23 | Peter Antons | Disposable hair lightening applicator comb |
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USD940969S1 (en) * | 2020-03-10 | 2022-01-11 | Moshe Maor | Flea comb |
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- 2001-10-09 AU AU2002214559A patent/AU2002214559A1/en not_active Abandoned
- 2001-10-09 JP JP2002533689A patent/JP2004519269A/en active Pending
- 2001-10-09 DE DE60115680T patent/DE60115680T2/en not_active Expired - Fee Related
- 2001-10-09 MX MXPA03003135A patent/MXPA03003135A/en active IP Right Grant
- 2001-10-09 AT AT01983105T patent/ATE311786T1/en not_active IP Right Cessation
- 2001-10-09 EP EP01983105A patent/EP1324680B1/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
JP2004519269A (en) | 2004-07-02 |
WO2002030236A3 (en) | 2003-01-30 |
AU2002214559A1 (en) | 2002-04-22 |
ATE311786T1 (en) | 2005-12-15 |
EP1324680B1 (en) | 2005-12-07 |
MXPA03003135A (en) | 2003-07-14 |
US6588964B1 (en) | 2003-07-08 |
EP1324680A2 (en) | 2003-07-09 |
DE60115680D1 (en) | 2006-01-12 |
DE60115680T2 (en) | 2006-09-07 |
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