US3399836A - Atomizing pump - Google Patents
Atomizing pump Download PDFInfo
- Publication number
- US3399836A US3399836A US595761A US59576166A US3399836A US 3399836 A US3399836 A US 3399836A US 595761 A US595761 A US 595761A US 59576166 A US59576166 A US 59576166A US 3399836 A US3399836 A US 3399836A
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- Prior art keywords
- piston
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- space
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- passage
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- 239000007788 liquid Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 9
- 238000000889 atomisation Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
- B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
- B29C65/0672—Spin welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2019/00—Use of rubber not provided for in a single one of main groups B29K2007/00 - B29K2011/00, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
- B29K2023/22—Copolymers of isobutene, e.g. butyl rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2095/00—Use of bituminous materials as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/043—Skinned foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention relates to the field of atomizers, and particularly to atomizing pumps especially for atomizing perfume or similar cosmetic preparations.
- Pumps of the type with which the present invention is concerned include a piston yarranged to be driven into the pump housing against a spring pressure so as to deliver the liquid to a nozzle. It is known that, in order to obtain the highest possible degree of atomization, it is preferable to provide at the pump outlet a so-called turbulence nozzle.
- a more specific object of the present invention is to produce a complete atomization of the liquid delivered to the nozzle, regardless of the speed with which the piston is depressed.
- Another object of the present invention is to prevent liquid from remaining in the region of the nozzle at the end of an atomization operation.
- a still further object of the present invention is to simplify the construction of atomizing pumps.
- a pump assembly for conveying liquids to be atomized, which assembly includes first means defining a first variable volume space and a Huid ow passage in communication with the first space, and second means defining a second variable volume space in communication with the first space.
- the pump according to the present invention further includes first valve means associated with the first means and disposed for isolating the ow passage from the first space, connecting means connecting the second means to the first valve means for controlling the opening and closing of the valve means and for permitting a limited degree of relative movement between the first valve means and the second means, and biasing means associated with the second means for urging it into a condition corresponding to the minimum volume of the second space.
- the first means are constituted by a cylinder and a piston disposed for movement in a longitudinal direction in the cylinder for varying the volume of the first space
- the second means are also composed of a cylinder, which has a smaller cross-sectional area than the first cylinder, and a piston disposed for movement in the cylinder in the longitudinal direction for varying the volume of the second space.
- the liquid fiow passage is formed, at least partially, in the piston of the first means, and the connecting means are connected between the valve means and the piston of the second means.
- the biasing means which are preferably constituted by a helical compression spring, are connected to the piston of the second means.
- FIGURE l is a longitudinal, cross-sectional view o a first embodiment of the present invention.
- FIGURE 2 is a view similar to that of FIGURE 1 of another embodiment of the present invention.
- the device of FIGURE 1 includes a main cylinder 1 housing a main piston 2, and a further cylinder 3 housing a further piston 4, the cylinder 3 having a smaller crosssectional area than the main cylinder 1.
- the further cylinder 3 and its associated piston 4 are arranged upstream, with respect to the direction of liquid flow, of the main cylinder 1 and its associated piston 2.
- a suction tube 5 preferably made of the same material as, and forming a unit with, cylinders 1 and 3.
- the suction tube 5 is arranged to extend substantially to the bottom of a container with which the pump is to be associated.
- Piston 2 is formed with an axial passage 11 which passes through the piston and through a stem 16 integral with the piston and is associated with a valve 10 which tends to close passage 11 when the piston 2 is moved in the uid conveying direction, i.e., downwardly.
- Piston 4 is provided with an axial passage whose lower end defines a 4seating for a ball valve 12 which tends to open the passage when piston 4 is driven in the fluid conveying direction, i.e., downwardly.
- Piston 4 is also provided with an upwardly-extending axial stem 6 carrying diametrically extending fingers 7 which engage in longitudinally elongated slots 8 formed in a collar 9 connected to valve 10.
- the upper end of stem 6 bears against the underside of valve 10 in order to normally urge the valve into its closing position.
- Stem 16 carries a plunger knob 17 formed with a radially extending passage in permanent communication with passage 11.
- the outer end of the radially extending passage in knob 17 is equipped with a nozzle 18, which is preferably in the form of a turbulence nozzle, whose opening is in permanent communication with passage 11.
- a cover 15 which restricts the upward movement of piston 2.
- Each end of piston 2 is provided with an annular sealing collar 14 which is preferably integral with the piston and which forms a seal with the wall of cylinder 1.
- the entire piston assembly is supported by a helical compression spring 13, which is preferably constituted by a propeller thrust spring, disposed within cylinder 3 and bearing against the lower surface of piston 4.
- the outer surface of cylinder 1 is preferably threaded to be screwed into the mouth of the container with which it is to be associated.
- the knob 17 is first depressed, moving the assembly of pistons 2 and 4 and valve 10 downwardly and compressing spring 13.
- the fiuid trapped in cylinder 1 transmits a pressure which maintains ball valve 12 in a closed condition. Since the cylinder 3 has a smaller cross-sectional area than cylinder 1, the fluid passing from cylinder 1 into cylinder 3 causes the piston 4 to move at a higher velocity than piston 2. During this interval, the fluid pressure in cylinder 1 maintains valve 10 closed. Therefore, as the downward movement of both pistons continues, diametrically extending fingers 7 move downwardly with respect to slots 8 until they come to bear against the lower extremities of these slots. When this occurs, the continued downward movement of piston 4 at a higher velocity than that of piston 2 causes fingers 7 to draw valve 10 away from the inlet opening of passage 11, thus permitting this latter passage to communicate with the interior of cylinder 1.
- the liquid flow passage 11 is always automatically and tightly sealed when the apparatus is not in use.
- FIGURE 2 shows a modified form of construction according to the present invention in which elements identical to those of the embodiment of FIGURE 1 are identified by the same reference numerals.
- FIGURE 2 differs from that of FIGURE 1 primarily in the construction of the small piston 4.
- the ball valve is eliminated from this piston and its function is taken over by a resilient collar 19 which extends toward piston 2 and which bears resiliently against the inner wall of cylinder 3 to form a seal therewith.
- collar 19 is drawn away from the walls of cylinder 3 ⁇ in order to permit fluid to fiow upwardly into cylinder 1.
- the cover member can be replaced by a cover member 15', which is shown at the right-hand side of FIGURE 2, having a fastening lip 20 which bears firmly against the flange at the upper end of cylinder 1 and a threaded cap 21, the cap 21, lip 20 and cover 15' being made of a single piece.
- the cover 15 can be provided with a plurality of individual, circumferentially spaced fastening tabs for attachment to the cylinder 1.
- a threaded cap 21 makes it relatively easy to mount the pump assembly on a separately provided container, such as a perfume flacon, for example.
- y Pump assemblies according to the present invention can also be constructed for atomizing water, cleansing agents, coloring agents, oils, etc.
- construction of the pump assembly is simplified by making the piston 4 and the collar 19 of a single piece.
- Construction is further simplified by also making the piston 4 of FIGURE 2, or the piston 4 of FIGURE l, integral with its associated stem 6. Construction is still further Simplified by mak-ing the step 16 integral with the piston 2.
- the construction of embodiments of the present invention is even further simplified by making the cylinders 1 and 3 and the tube 5, or at least a socket for connection of the tube 5, from a single piece of material and by arranging the cylinders 1 and 3 coaXially in line with one another.
- piston 2 and collars 14 are preferably made of a single piece.
- Yet another feature of the present invention resides in the fact that the entire cross-sectional area of the smaller cylinder 3 preferably opens completely into the large cylinder 1.
- first means defining a first variable volume space and a fluid flow passage in communication with said first space
- biasing means associated with said second means for urging it into a condition corresponding to the minimum volume of said second space.
- said first means .are constituted by a first cylinder and a first piston, said first piston defining said liquid fiow passage and being disposed for movement in a longitudinal direction in said first cylinder for varying the volume of said first space;
- said second means are constituted by a second cylinder having an internal cross-sectional area, in a plane perpendicular to the direction of movement of said first piston, which is smaller than that of said first cylinder, and a second piston disposed for movement in said second cylinder in said longitudinal direction for varying the volume of said second space;
- said first valve means are associated with said first piston for isolating said passage from said first space at least during a portion of the travel of the said first piston in a direction which decreases the volume of said first space; and said connecting means connect said first valve means to said second piston.
- said connecting means are constituted by a stem carrying a plurality of laterally extending fingers, and said first valve means are formed with a plurality of elongated, longitudinally extending slots each of which receives a respective one of said fingers, the length of said slots determining the degree of relative movement permitted between said first valve means and said second piston.
- said second piston includes an annular collar which extends toward said first piston and which bears elastically against the inner wall of said second cylinder to form a normally closed valve which is maintained in a closed condition by pressure in the space between said first and second piston.
- An arrangement as defined in claim 2 further comprising a socket for attaching a suction tube, wherein said socket, said first cylinder and said second cylinder are constituted by a single body of material.
- An arrangement as defined in claim 2 further comprising a suction tube connected to said second cylinder, said tube, said irst cylinder and said second cylinder constituting a single body.
- An arrangement as defined in claim 2 further comprising a supporting stem connected to said first piston and traversed by said passage, a plunger knob carried by said supporting stem, and a turbulence nozzle carried by said knob in permanent communication with said passage for receiving liquid conveyed by said pump assembly, said nozzle having an atomizing opening extending at right angles to said longitudinal direction in which said pistons move with respect to their associated cylinders.
- An arrangement as defined in claim 2 further comprising two sealing collars, each disposed at a respective end of said rst piston and forming a seal with the inner wall of said first cylinder, said collars being integral with said first piston.
- biasing means are constituted by a helical compression spring which bears against said Second piston.
Description
Sept. 3, 1968 F, PECHSTElN 3,399,836
ATOMIZING PUMP Filed Nov. 2l, 1966 2 Sheets-Sheet l Figi 16kg 15 Af \1 \8 J \9 nef lnvenfor.' Fwd Ped? s+ ein Fbkovnags SePt- 3, 1968 F. PECHSTEIN 3,399,836
ATOMIZING PUMP Filed Nov. 2l, 1966 2 Sheets-Sheet 2 Fig. 2
/n venor: Fwd Pg shim Flttov n 05s United States Patent O 13 claims. (ci. 239-333) The present invention relates to the field of atomizers, and particularly to atomizing pumps especially for atomizing perfume or similar cosmetic preparations.
Pumps of the type with which the present invention is concerned include a piston yarranged to be driven into the pump housing against a spring pressure so as to deliver the liquid to a nozzle. It is known that, in order to obtain the highest possible degree of atomization, it is preferable to provide at the pump outlet a so-called turbulence nozzle.
However, it has been found that even the use of a nozzle of this type in prior art atomizing pumps does not completely preclude the occurrence of an insufiicient atomization and the formation of droplets in the vicinity of the nozzle particularly when the pump piston is subjected to a relatively slow depression movement. Furthermore, the liquid remaining in the nozzle after an atomization operation tends to dry up and to obstruct the nozzle.
It is a primary object of the present invention to eliminate these drawbacks.
A more specific object of the present invention is to produce a complete atomization of the liquid delivered to the nozzle, regardless of the speed with which the piston is depressed.
Another object of the present invention is to prevent liquid from remaining in the region of the nozzle at the end of an atomization operation.
A still further object of the present invention is to simplify the construction of atomizing pumps.
These and other objects according to the present invention are achieved by the provision of a pump assembly for conveying liquids to be atomized, which assembly includes first means defining a first variable volume space and a Huid ow passage in communication with the first space, and second means defining a second variable volume space in communication with the first space. The pump according to the present invention further includes first valve means associated with the first means and disposed for isolating the ow passage from the first space, connecting means connecting the second means to the first valve means for controlling the opening and closing of the valve means and for permitting a limited degree of relative movement between the first valve means and the second means, and biasing means associated with the second means for urging it into a condition corresponding to the minimum volume of the second space.
According to preferred embodiments of the present invention the first means are constituted by a cylinder and a piston disposed for movement in a longitudinal direction in the cylinder for varying the volume of the first space, and the second means are also composed of a cylinder, which has a smaller cross-sectional area than the first cylinder, and a piston disposed for movement in the cylinder in the longitudinal direction for varying the volume of the second space. In these preferred embodiments, the liquid fiow passage is formed, at least partially, in the piston of the first means, and the connecting means are connected between the valve means and the piston of the second means. Furthermore, the biasing means, which are preferably constituted by a helical compression spring, are connected to the piston of the second means.
Additional objects and advantages of the present invention will become apparent upon consideration of the fol- 3,399,836 Patented Sept. 3, 1968 lowing description when taken in conjunction with the accompanying drawings in which:
FIGURE l is a longitudinal, cross-sectional view o a first embodiment of the present invention.
FIGURE 2 is a view similar to that of FIGURE 1 of another embodiment of the present invention.
The device of FIGURE 1 includes a main cylinder 1 housing a main piston 2, and a further cylinder 3 housing a further piston 4, the cylinder 3 having a smaller crosssectional area than the main cylinder 1. The further cylinder 3 and its associated piston 4 are arranged upstream, with respect to the direction of liquid flow, of the main cylinder 1 and its associated piston 2. At the lower, or upstream, end of cylinder 3 is connected a suction tube 5 preferably made of the same material as, and forming a unit with, cylinders 1 and 3. The suction tube 5 is arranged to extend substantially to the bottom of a container with which the pump is to be associated.
Piston 2 is formed with an axial passage 11 which passes through the piston and through a stem 16 integral with the piston and is associated with a valve 10 which tends to close passage 11 when the piston 2 is moved in the uid conveying direction, i.e., downwardly. Piston 4 is provided with an axial passage whose lower end defines a 4seating for a ball valve 12 which tends to open the passage when piston 4 is driven in the fluid conveying direction, i.e., downwardly.
Piston 4 is also provided with an upwardly-extending axial stem 6 carrying diametrically extending fingers 7 which engage in longitudinally elongated slots 8 formed in a collar 9 connected to valve 10. The upper end of stem 6 bears against the underside of valve 10 in order to normally urge the valve into its closing position.
The upper end of the space defined by clinder 1 is closed by a cover 15 which restricts the upward movement of piston 2. Each end of piston 2 is provided with an annular sealing collar 14 which is preferably integral with the piston and which forms a seal with the wall of cylinder 1. The entire piston assembly is supported by a helical compression spring 13, which is preferably constituted by a propeller thrust spring, disposed within cylinder 3 and bearing against the lower surface of piston 4.
The outer surface of cylinder 1 is preferably threaded to be screwed into the mouth of the container with which it is to be associated.
In operation, the knob 17 is first depressed, moving the assembly of pistons 2 and 4 and valve 10 downwardly and compressing spring 13. The fiuid trapped in cylinder 1 transmits a pressure which maintains ball valve 12 in a closed condition. Since the cylinder 3 has a smaller cross-sectional area than cylinder 1, the fluid passing from cylinder 1 into cylinder 3 causes the piston 4 to move at a higher velocity than piston 2. During this interval, the fluid pressure in cylinder 1 maintains valve 10 closed. Therefore, as the downward movement of both pistons continues, diametrically extending fingers 7 move downwardly with respect to slots 8 until they come to bear against the lower extremities of these slots. When this occurs, the continued downward movement of piston 4 at a higher velocity than that of piston 2 causes fingers 7 to draw valve 10 away from the inlet opening of passage 11, thus permitting this latter passage to communicate with the interior of cylinder 1.
With the passage thus open, the pressure imposed on the fluid in the cylinders, principally, by the energy stored in compressed spring 13 and secondarily by the continued downward movement of piston 2, causes fluid to be driven through passage 11 and to be atomized by nozzle 18. The fiow of fiuid through passage 11 continues until piston 4 has been driven upwardly by spring 4 to a sufiicient height to cause the upper end of stem 6 to return valve 10 to its closing position.
Since the pressure necessary for delivering the fiuid to nozzle 18 and for causing its atomization is supplied mainly by compressed spring 13, the atomization will always be complete and will occur at a constant rate, regardless of the speed at which knob 17, and hence piston 2, is being depressed. According to one of the novel features of the present invention, it is only necessary to properly select the length of arcuate slots 8, and hence the degree of relative movement between stem 6 and valve 10, in order to cause the latter valve to be opened at a predetermined point in the downward travel path of valve 4 and thus to cause the atomization to be carried out at a predetermined pressure, which depends on the degree of compression of spring 13 at the start of the atomization operation.
According to another important advantage realized by the present invention, the liquid flow passage 11 is always automatically and tightly sealed when the apparatus is not in use.
As the piston 4 moves upwardly under the influence of spring 13 and drives fluid through passage 11 and nozzle 18, it also produces a pressure drop in the space occupied by spring 13 which causes liquid to be drawn through tube and into this latter space. Then, after the subsequent closure of passage 11 by valve 10, both valves begin ascent at the same velocity since stem 6 is pressing upwardly on valve and valve 10 is, in turn, pressing upwardly on piston 2. As a result, the volume of the space enclosed between pistons 2 and 4 progressively increases during this ascending movement. This causes the pressure in this space to drop so as to cause the liquid contained in cylinder 3 to be drawn upwardly past ball valve 12 and into cylinder 1. Thus, a new supply of liquid is introduced into the space enclosed by cylinder 1 at the end of each atomization cycle.
FIGURE 2 shows a modified form of construction according to the present invention in which elements identical to those of the embodiment of FIGURE 1 are identified by the same reference numerals.
The embodiment of FIGURE 2 differs from that of FIGURE 1 primarily in the construction of the small piston 4. In this embodiment, the ball valve is eliminated from this piston and its function is taken over by a resilient collar 19 which extends toward piston 2 and which bears resiliently against the inner wall of cylinder 3 to form a seal therewith. When a pressure drop is created in the space between pistons 2 and 4', in the manner described above, collar 19 is drawn away from the walls of cylinder 3 `in order to permit fluid to fiow upwardly into cylinder 1.
According to another modification of the present invention, the cover member can be replaced by a cover member 15', which is shown at the right-hand side of FIGURE 2, having a fastening lip 20 which bears firmly against the flange at the upper end of cylinder 1 and a threaded cap 21, the cap 21, lip 20 and cover 15' being made of a single piece. In place of the single annular lip 20, the cover 15 can be provided with a plurality of individual, circumferentially spaced fastening tabs for attachment to the cylinder 1. The provision of a threaded cap 21 makes it relatively easy to mount the pump assembly on a separately provided container, such as a perfume flacon, for example.
y Pump assemblies according to the present invention can also be constructed for atomizing water, cleansing agents, coloring agents, oils, etc.
According to a further novel feature of the present invention, construction of the pump assembly is simplified by making the piston 4 and the collar 19 of a single piece.
4 Construction is further simplified by also making the piston 4 of FIGURE 2, or the piston 4 of FIGURE l, integral with its associated stem 6. Construction is still further Simplified by mak-ing the step 16 integral with the piston 2.
According to yet another advantageous feature of the present invention, the construction of embodiments of the present invention is even further simplified by making the cylinders 1 and 3 and the tube 5, or at least a socket for connection of the tube 5, from a single piece of material and by arranging the cylinders 1 and 3 coaXially in line with one another.
For the same purpose, the piston 2 and collars 14 are preferably made of a single piece.
Yet another feature of the present invention resides in the fact that the entire cross-sectional area of the smaller cylinder 3 preferably opens completely into the large cylinder 1.
It will be understood that the above description of the present invention is susceptible to various modifications, changes, and adaptations, and the same are intended to be comprehended within the meaning and range of equivalents ofthe appended claims.
What is claimed is:
1. A pump assembly for conveying liquids to be atomized and comprising, in combination:
(a) first means defining a first variable volume space and a fluid flow passage in communication with said first space;
(b) second means defining a second variable volume space in commnnication with said first space;
(c) first valve means associated with said first means and disposed for isolating said passage from said first space;
(d) connecting means connecting said second means lo said first valve means for controlling the opening and closing of said valve means and for providing a limited degree of relative movement between said first valve means and said second means; and
(e) biasing means associated with said second means for urging it into a condition corresponding to the minimum volume of said second space.
2. An arrangement as defined in claim 1 wherein: said first means .are constituted by a first cylinder and a first piston, said first piston defining said liquid fiow passage and being disposed for movement in a longitudinal direction in said first cylinder for varying the volume of said first space; said second means are constituted by a second cylinder having an internal cross-sectional area, in a plane perpendicular to the direction of movement of said first piston, which is smaller than that of said first cylinder, and a second piston disposed for movement in said second cylinder in said longitudinal direction for varying the volume of said second space; said first valve means are associated with said first piston for isolating said passage from said first space at least during a portion of the travel of the said first piston in a direction which decreases the volume of said first space; and said connecting means connect said first valve means to said second piston.
3. An arrangement as defined in claim 2 wherein said first and second pistons are disposed coaxially for movement in the same direction.
4. An arrangement as defined in claim 2 wherein said first and second cylindersare disposed in line with one another, with the entire internal cross-sectional area of said second cylinder being in communication with that of said first cylinder.
5. An arrangement as defined in claim 2 wherein said connecting means are constituted by a stem carrying a plurality of laterally extending fingers, and said first valve means are formed with a plurality of elongated, longitudinally extending slots each of which receives a respective one of said fingers, the length of said slots determining the degree of relative movement permitted between said first valve means and said second piston.
6. An arrangement `as dened in claim 2 wherein said connecting means are integral with said second piston.
7. An arrangement as defined in claim 2 wherein said second piston includes an annular collar which extends toward said first piston and which bears elastically against the inner wall of said second cylinder to form a normally closed valve which is maintained in a closed condition by pressure in the space between said first and second piston.
8. An arrangement as defined in claim 7 wherein said collar is integral with said second piston.
9. An arrangement as defined in claim 2 further comprising a socket for attaching a suction tube, wherein said socket, said first cylinder and said second cylinder are constituted by a single body of material.
10. An arrangement as defined in claim 2 further comprising a suction tube connected to said second cylinder, said tube, said irst cylinder and said second cylinder constituting a single body.
11. An arrangement as defined in claim 2 further comprising a supporting stem connected to said first piston and traversed by said passage, a plunger knob carried by said supporting stem, and a turbulence nozzle carried by said knob in permanent communication with said passage for receiving liquid conveyed by said pump assembly, said nozzle having an atomizing opening extending at right angles to said longitudinal direction in which said pistons move with respect to their associated cylinders.
12. An arrangement as defined in claim 2 further comprising two sealing collars, each disposed at a respective end of said rst piston and forming a seal with the inner wall of said first cylinder, said collars being integral with said first piston.
i3. An arrangement as defined in claim 12 wherein said biasing means are constituted by a helical compression spring which bears against said Second piston.
References Cited UNITED STATES PATENTS 3,185,354 5/1965 Lipman 222-321 3,211,346 10/1965 Meshberg 222-321 X 3,223,292 12/1965 Keeney et al 22-321 3,229,864 1/1966 Roder 222-321 M. HENSON WOOD, JR., Primary Examiner.
V. M. WIGMAN, Assistant Examiner.
Claims (1)
1. A PUMP ASSEMBLY FOR CONVEYING LIQUIDS TO BE ATOMIZED AND COMPRISING, IN COMBINATION: (A) FIRST MEANS DEFINING A FIRST VARIABLE VOLUME SPACE AND A FLUID FLOW PASSAGE IN COMMUNICATION WITH SAID FIRST SPACE; (B) SECOND MEANS DEFINING A SECOND VARIABLE VOLUME SPACE IN COMMUNICATION WITH SAID FIRST SPACE; (C) FIRST VALVE MEANS ASSOCIATED WITH SAID FIRST MEANS AND DISPOSED FOR ISOLATING SAID PASSAGE FROM SAID FIRST SPACE; (D) CONNECTING MEANS CONNECTING SAID SECOND MEANS TO SAID FIRST VALVE MEANS FOR CONTROLLING THE OPENING AND
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38350473 USRE28366E (en) | 1966-11-21 | 1973-07-30 | Atomizing pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA51830A DE1290043B (en) | 1966-03-12 | 1966-03-12 | Nebulizer pump, especially for perfumes or other cosmetic liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
US3399836A true US3399836A (en) | 1968-09-03 |
Family
ID=6938149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US595761A Expired - Lifetime US3399836A (en) | 1966-03-12 | 1966-11-21 | Atomizing pump |
Country Status (5)
Country | Link |
---|---|
US (1) | US3399836A (en) |
AT (1) | AT266687B (en) |
DE (1) | DE1290043B (en) |
FR (1) | FR1486392A (en) |
GB (1) | GB1136848A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3761022A (en) * | 1972-04-04 | 1973-09-25 | H Kondo | A spring pressure accumulative spray device |
JPS5074807A (en) * | 1973-11-07 | 1975-06-19 | ||
JPS5076614A (en) * | 1973-11-10 | 1975-06-23 | ||
JPS5078909A (en) * | 1974-03-26 | 1975-06-27 | ||
US3921861A (en) * | 1974-05-17 | 1975-11-25 | Hirosi Kondo | Pressure accumulative spray device |
US3923250A (en) * | 1974-02-08 | 1975-12-02 | Step Soc Tech Pulverisation | Liquid perfume atomizers |
US4050613A (en) * | 1976-08-31 | 1977-09-27 | Corsette Douglas Frank | Manual actuated dispensing pump |
US4140249A (en) * | 1976-09-18 | 1979-02-20 | Mitani Valve Co., Ltd. | Manual spray pump |
US4147476A (en) * | 1974-03-28 | 1979-04-03 | Bespak Industries Limited | Pump assembly for an atomizing piston pump |
US4174056A (en) * | 1977-05-10 | 1979-11-13 | Ciba-Geigy Corporation | Pump type dispenser with continuous flow feature |
US4274560A (en) * | 1976-04-30 | 1981-06-23 | Emson Research Incorporated | Atomizing pump dispenser |
EP0128585A2 (en) * | 1983-06-13 | 1984-12-19 | AFA Products, Inc. | Hand manipulatable sprayer |
US4669664A (en) * | 1984-04-09 | 1987-06-02 | Waynesboro Textiles, Inc. | Hand manipulatable sprayer |
US4768714A (en) * | 1984-05-31 | 1988-09-06 | Luchsinger Pedro W | Portable sprayer with leak control and agitator |
US4798333A (en) * | 1984-05-31 | 1989-01-17 | Luchsinger Pedro W | Portable sprayer with improved combination of piston and diaphragm pump |
US4895279A (en) * | 1988-07-25 | 1990-01-23 | Emson Research Inc. | Flat-top valve member for an atomizing pump dispenser |
US4986453A (en) * | 1989-05-15 | 1991-01-22 | The Pittway Corporation | Atomizing pump |
US5279568A (en) * | 1993-04-30 | 1994-01-18 | Spruhventile Gmbh | Pharmaceutical pump dispenser for fluid suspensions and fluid mixtures |
US5655688A (en) * | 1994-10-19 | 1997-08-12 | Aptargroup, Inc. | Atomizing pump with high stroke speed enhancement and valve system therefor |
US5850948A (en) * | 1996-09-13 | 1998-12-22 | Valois S.A. | Finger-operable pump with piston biasing post |
US6126038A (en) * | 1998-10-30 | 2000-10-03 | Olegnowicz; Israel | Atomizing pump spray |
US6634872B1 (en) * | 1999-03-22 | 2003-10-21 | Rexam Sofab | Suction pump |
CN1309482C (en) * | 2001-04-04 | 2007-04-11 | 瓦卢瓦有限合伙公司 | Fluid product distribution pump |
FR3128648A1 (en) | 2021-11-04 | 2023-05-05 | Gilles TAÏEB | Vaporizer pump system |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2133259A5 (en) * | 1971-04-08 | 1972-11-24 | Step | |
US3908870A (en) | 1973-11-15 | 1975-09-30 | Yoshino Kogyosho Co Ltd | Manual-type miniature atomizer |
DE2462828C3 (en) * | 1973-11-15 | 1981-08-06 | Yoshino Kogyosho Co., Ltd., Tokyo | Hand-operated small atomizer |
US4051983B1 (en) * | 1975-11-19 | 1993-12-14 | Calmar Inc. | Pump sprayer having pump priming means |
US4029261A (en) * | 1976-04-30 | 1977-06-14 | Jaime Olegnowicz | Piston displacement liquid spray pumps |
FR2429338A1 (en) * | 1978-06-19 | 1980-01-18 | Aerosol Inventions Developmant | QUICK PRIMING PUMP FOR VAPORIZER |
FR2433982A1 (en) * | 1978-08-23 | 1980-03-21 | Mitani Valve Co Ltd | Dual piston pump spray - has close coupled large and small pistons to suck liquid into pressure chamber at top of operating stroke |
DE2838613A1 (en) * | 1978-09-05 | 1980-03-13 | Seltmann Hans Juergen | Atomising pump for aerosol dispenser - has suction tube connected directly to inlet valve to eliminate vapour locking |
DE2906234C2 (en) * | 1979-02-17 | 1986-01-02 | Calmar-Albert GmbH, 5870 Hemer | Atomizing piston pump |
ES481770A1 (en) * | 1979-06-21 | 1980-02-16 | Marzabal Martinez Carlos | A Liquid Metering Device |
US5002228A (en) * | 1989-07-14 | 1991-03-26 | Su Jeno Y | Atomizer |
DE3940101A1 (en) * | 1989-12-04 | 1991-06-06 | Hofmann Joerg | MANUAL, DOUBLE-ACTING DOSING AND / OR SPRAYING PUMP |
ES2118273T3 (en) * | 1993-03-08 | 1998-09-16 | Spruhventile Gmbh | PUMP TYPE FLUID DISTRIBUTOR FOR PHARMACEUTICAL APPLICATIONS. |
US5566865A (en) * | 1993-12-22 | 1996-10-22 | Valois S.A. | Manual atomizing pump with adjustable dosage |
EP0688608A1 (en) * | 1994-03-25 | 1995-12-27 | GUALA S.p.A. | An atomizer device for manually operated pumps |
FR2815675B1 (en) * | 2000-10-23 | 2003-05-02 | Valois Sa | FLUID PRODUCT DELIVERY PUMP |
FR2832079B1 (en) * | 2001-11-14 | 2004-07-30 | Valois Sa | DISPENSING HEAD AND FLUID PRODUCT DISPENSER COMPRISING SUCH A DISPENSING HEAD |
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US3229864A (en) * | 1963-11-30 | 1966-01-18 | Roder Eberhard | Check valve with resilient movable element and dispensing pump embodying the same |
Family Cites Families (1)
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DE1201684B (en) * | 1964-01-28 | 1965-09-23 | Erich Pfeiffer K G Metallwaren | Single-acting, hand-operated piston pump installed in a vessel |
-
1966
- 1966-03-12 DE DEA51830A patent/DE1290043B/en active Pending
- 1966-06-17 AT AT582766A patent/AT266687B/en active
- 1966-07-12 FR FR69086A patent/FR1486392A/en not_active Expired
- 1966-11-21 US US595761A patent/US3399836A/en not_active Expired - Lifetime
-
1967
- 1967-03-09 GB GB11028/67A patent/GB1136848A/en not_active Expired
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US3185354A (en) * | 1963-06-04 | 1965-05-25 | Valve Corp Of America | Pump dispensing device for liquid containers |
US3229864A (en) * | 1963-11-30 | 1966-01-18 | Roder Eberhard | Check valve with resilient movable element and dispensing pump embodying the same |
US3211346A (en) * | 1964-07-15 | 1965-10-12 | Meshberg Philip | Pump-type dispenser |
US3223292A (en) * | 1964-09-30 | 1965-12-14 | Valve Corp Of America | Pump construction for hand-operated dispenser |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3761022A (en) * | 1972-04-04 | 1973-09-25 | H Kondo | A spring pressure accumulative spray device |
JPS5074807A (en) * | 1973-11-07 | 1975-06-19 | ||
JPS5738307B2 (en) * | 1973-11-07 | 1982-08-14 | ||
JPS5076614A (en) * | 1973-11-10 | 1975-06-23 | ||
US3923250A (en) * | 1974-02-08 | 1975-12-02 | Step Soc Tech Pulverisation | Liquid perfume atomizers |
JPS5078909A (en) * | 1974-03-26 | 1975-06-27 | ||
JPS5720026B2 (en) * | 1974-03-26 | 1982-04-26 | ||
US4147476A (en) * | 1974-03-28 | 1979-04-03 | Bespak Industries Limited | Pump assembly for an atomizing piston pump |
US3921861A (en) * | 1974-05-17 | 1975-11-25 | Hirosi Kondo | Pressure accumulative spray device |
US4274560A (en) * | 1976-04-30 | 1981-06-23 | Emson Research Incorporated | Atomizing pump dispenser |
US4050613A (en) * | 1976-08-31 | 1977-09-27 | Corsette Douglas Frank | Manual actuated dispensing pump |
US4140249A (en) * | 1976-09-18 | 1979-02-20 | Mitani Valve Co., Ltd. | Manual spray pump |
US4174056A (en) * | 1977-05-10 | 1979-11-13 | Ciba-Geigy Corporation | Pump type dispenser with continuous flow feature |
EP0128585A2 (en) * | 1983-06-13 | 1984-12-19 | AFA Products, Inc. | Hand manipulatable sprayer |
EP0128585A3 (en) * | 1983-06-13 | 1986-02-26 | The Afa Corporation | Hand manipulatable sprayer |
US4669664A (en) * | 1984-04-09 | 1987-06-02 | Waynesboro Textiles, Inc. | Hand manipulatable sprayer |
US4768714A (en) * | 1984-05-31 | 1988-09-06 | Luchsinger Pedro W | Portable sprayer with leak control and agitator |
US4798333A (en) * | 1984-05-31 | 1989-01-17 | Luchsinger Pedro W | Portable sprayer with improved combination of piston and diaphragm pump |
US4895279A (en) * | 1988-07-25 | 1990-01-23 | Emson Research Inc. | Flat-top valve member for an atomizing pump dispenser |
US4986453A (en) * | 1989-05-15 | 1991-01-22 | The Pittway Corporation | Atomizing pump |
US5279568A (en) * | 1993-04-30 | 1994-01-18 | Spruhventile Gmbh | Pharmaceutical pump dispenser for fluid suspensions and fluid mixtures |
US5655688A (en) * | 1994-10-19 | 1997-08-12 | Aptargroup, Inc. | Atomizing pump with high stroke speed enhancement and valve system therefor |
US5850948A (en) * | 1996-09-13 | 1998-12-22 | Valois S.A. | Finger-operable pump with piston biasing post |
US6126038A (en) * | 1998-10-30 | 2000-10-03 | Olegnowicz; Israel | Atomizing pump spray |
US6634872B1 (en) * | 1999-03-22 | 2003-10-21 | Rexam Sofab | Suction pump |
CN1309482C (en) * | 2001-04-04 | 2007-04-11 | 瓦卢瓦有限合伙公司 | Fluid product distribution pump |
FR3128648A1 (en) | 2021-11-04 | 2023-05-05 | Gilles TAÏEB | Vaporizer pump system |
Also Published As
Publication number | Publication date |
---|---|
AT266687B (en) | 1968-11-25 |
DE1290043B (en) | 1969-02-27 |
FR1486392A (en) | 1967-06-23 |
GB1136848A (en) | 1968-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CALMAR, INC., 333 SOUTHL TURNBULL CANYON ROAD, CIT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DIAMOND INTERNATIONAL CORPORATION;REEL/FRAME:004199/0053 Effective date: 19831118 Owner name: CALMAR, INC., 333 SOUTHL TURNBULL CANYON ROAD, CIT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIAMOND INTERNATIONAL CORPORATION;REEL/FRAME:004199/0053 Effective date: 19831118 |