US3764046A - Compressed air fluid product dispenser - Google Patents

Compressed air fluid product dispenser Download PDF

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Publication number
US3764046A
US3764046A US00206355A US3764046DA US3764046A US 3764046 A US3764046 A US 3764046A US 00206355 A US00206355 A US 00206355A US 3764046D A US3764046D A US 3764046DA US 3764046 A US3764046 A US 3764046A
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United States
Prior art keywords
cylinder
piston
product
compressed air
flow path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00206355A
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English (en)
Inventor
P Riccio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis Corp
Original Assignee
Ciba Geigy Corp
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Filing date
Publication date
Application filed by Ciba Geigy Corp filed Critical Ciba Geigy Corp
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Publication of US3764046A publication Critical patent/US3764046A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • 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
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type

Definitions

  • ABSTRACT A fluid product dispenser has an assembly in the form Oct. 9, 1973 of a piston, the piston having a compressed air flow path therethrough, a valve member movable in the piston and obturating the compressed air flow path, aspirating means at one end of the compressed air flow .path, the other end of the compressed air path opening out of the piston remote from said aspirating means, and a product containing means in the device and. a product flow path through the device from the product containing means to the aspirating means.
  • a closed end cylinder is fitted around the piston in air tight sliding engagement with the closed end over the end of the compressed air flow path, so that the cylinder and piston are movable toward each other in a compression stroke to compress air within the cylinder.
  • An extension means on either or both the valve member and the closed end of the cylinder engages the other at the end of the compression stroke for moving the valve member to open the compressed air path only after the air is compressed in the cylinder.
  • the piston has a detachable portion which includes the product container and the aspirating means.
  • the device also includes a special product flow control diaphragm with a slit therein, and a special air return means in the form of a gasket held in place over aper tures in the closed end of the cylinder by a cylinder return spring.
  • Another object of the invention is to provide a fluid product dispenser of the type described in which the valve housing becomes the piston for compressing air for use in dispensing the fluid product.
  • Still another object of the invention is to provide, in a fluid product dispenser of the type described, improved air return to the cylinder after compression of air therein, and an improved product flow control means for controlling flow of product from the product container.
  • a fluid product dispenser comprising an assembly in the form of a piston, said assembly having a compressed air flow path therethrough, a valve member movable in the piston and obturating the compressed air flow path, aspirating means at one end of the compressed air flow path, the other end of the compressed air path opening out of the piston remote from said aspirating means, and a product containing means in the device and a product flow path through the device from the product containing means to the aspirating means.
  • a closed end cylinder is fitted around the piston in air tight sliding engagement with the closed end over the end of the compressed air flow path, so that the cylinder and piston are movable toward each other in a compression stroke to compress air within the cylinder.
  • An extension means on either or both the valve member and the closed end of the cylinder engages the other at the end of the compression stroke for moving the valve member to open the compressed air path only after the air is compressed in the cylinder.
  • a product container mounting which includes the product container and the aspirating means is detachably mounted on the piston.
  • the device also includes a special product flow control diaphragm with a slit therein, and a special air return means in the form of a gasket held in place over apertures in the closed end of the cylinder by a cylinder return spring.
  • FIG. 1 is a sectional view of the device according to the invention with the parts in the rest or nondispensing positions;
  • FIG. 2 is a sectional view similar to FIG. 1 with the parts in the dispensing positions;
  • FIGS. 3 and 4 are enlarged partial sectional views showing details of the air return means in the rest and dispensing positions, respectively.
  • FIG. 5 is a plan view, partly in section, of the interior of the cylinder showing part of the air return means.
  • an assembly has a body portion 10a which has a longitudinally extending passage 14a therein which opens out of the bottom of the body portion in an enlarged recess 13a.
  • a product container 10b has a recess 13b in the bottom thereof into which the upper end of the body portion fits.
  • a seal 12 is provided between the body portion 10a and the mounting 10b.
  • a passage 14b extends through the mounting 10b from the upper end of the recess 13b in alignment with passage 14a, and is intersected by a lateral opening 38 having a larger diameter portion.
  • Aspirating means in the form of a venturi nozzle insert 39 is positioned in the recess 38 so as to define a product supply chamber 44 around the nozzle insert.
  • the passages 14a and 14b form a compressed air flow path through the body portion and mounting 10a and 10b to the nozzle insert 39.
  • an apertured valve seat member 34 against the bottom of the body portion 10a over the recess 13a is an apertured valve seat member 34, and within the recess 13a over the valve seat member is a poppet valve member 15 which is urged toward the valve seat member 34 by a return spring 23 positioned in the recess 13a.
  • a poppet valve actuating pin 15a Depending from the poppet valve member 15 through the aperture in the valve seat member is a poppet valve actuating pin 15a.
  • the assembly has a second valve body portion in the form of a sleeve 10c fitting over the body portion 10a and having the open end threaded to a depending threaded portion on the mounting 10b and having the closed end fitting tightly over the valve seat member 34 and holding it in place.
  • An annular spring locating projection 11 depends from the closed end of the sleeve.
  • the outside diameter of the sleeve 10c is the same as the outside diameter of the mounting 10b, and together with the body a and the mounting 10b forms a piston in a manner which will be described hereinafter.
  • a closed end cylinder 17 is fitted over the piston formed by the parts 10a, 10b and 10c, which cylinder extends all the way to the end of the upper mounting 10b which is remote from the body 10a.
  • the cylinder thus also serves as a cover for the piston.
  • An aperture 17a is provided in the sleeve 17 which, when the device has the parts in the dispensing positions as shown in FIG. 2, is aligned with the recess 38 in the mounting 10b and the nozzle insert 39 therein.
  • the closed end of the cylinder has an inwardly extending projection 18 thereon which is aligned with the poppet valve actuating pin a.
  • a piston return spring 19 is held between the projection 18 and the spring retaining projection 11.
  • a sealing ring 20 is positioned between the inside cylindrical surface of the cylinder 17 and the outer cylindrical surface of the sleeve 10c. In the closed end of the cylinder 17 is an air return means which will be described in greater detail hereinafter.
  • a product container means is provided at the end of the mounting 10b remote from the cylinder 17.
  • a recess 21 is provided in a portion of the mounting which projects beyond the open end of the cylinder 17 when the parts are in the nondispensing positions, as seen in FIG. 1.
  • the recess 21 is closed by a closure means 22, here shown as a sealed cap.
  • the exterior surface of the projecting portion of the mounting 18b is knurled or scored, as shown in 22a, in order to provide a grip for turning the mounting 10b.
  • a product flow control means 24 for controlling the flow of the product out of the recess so that it flows only when compressed air flows through the nozzle insert 39.
  • a product flow path in the form of a passage 25 is formed from the bottom of the recess 21 through the mounting 10b into the product supply chamber 44.
  • the mounting 10b including the product container means and the nozzle insert 39 are replaceable. All that is necessary is to grasp the knruled exterior surface 22a and unscrew the mounting 10b from the open end of the sleeve 100. Since this threaded engagement is the only interfitting engagement between the mounting 10b and the remainder of the device, once the threaded engagement is ended, the mounting 10b can simply be withdrawn from the remainder of the device. Replacement requires only threading a new mounting 10b into place.
  • the advantage of this arrangement is that not only is the supply of the product in the recess 21 replaced, but a whole new product dispensing system is provided, i.e. the product flow control means 24, the passage 25 and the nozzle insert 39. This avoids manfunctions of the device due to clogged or improperly operating product flow control means and passages, and clogged nozzle insertes.
  • the product flow control means 24 is a novel feature of the present invention. It is a diaphragm of flexible material, such as rubber or plastic which is unaffected by the product being dispensed, and it has at least one slit 24a therein.
  • the bottom of the recess 21 is concave, as at 21a, while the diaphragm is sufficiently stiff so that in its normal condition it bridges the concave portion 21a of the recess 21 while supporting the weight of the product within the recess 21.
  • it is sufficiently resilient that when a reduced pressure is created in the concave portion 210 due to compressed air flowing through the nozzle insert 39, it is drawn downwardly sufficiently to stretch and open the slit 24a, as shown in FIG. 2.
  • the air return means in the closed end of the cylinder 17 is shown in more detail in FIGS. 3-5.
  • the closed end of the cylinder 17 has apertures 27 therethrough opening into an inner annular groove 28 around the inner surface of the closed end.
  • Grooves 29 extend from the annular groove 28 up the side of the projection 18.
  • An annular gasket 30 is provided which overlies the groove 28 and is held between the closed end of the cylinder 17 and the end of the spring 19. The grooves 29 extend past the inner edge of the gasekt 30.
  • the parts of the device are normally in the positions as shown in FIGS. 1 and 3.
  • the spring 19 holds the chylinder 17 and the piston 10a, 10b, 10c spaced apart, the air passage through the air return means in the closed end of the cylinder is open, and the flow control means 24 is closed. Pressure is then exerted on the closed end of the cylinder 17 and the closure 22, for example by the thumb and forefinger, to urge the cylinder 17 and the piston 10a, 10b, 10c toward each other while compressing the spring 19.
  • the air return means prevents flow of air therethrough so that air is compressed within the cylinder 17, the poppet valve member 15 being held seated by the spring 23, and the sealing ring 20 preventing escape of compressed air between the interior of the cylinder 17 and the sleeve 10c.
  • the projection 18 in the inside of the closed end of the cylinder 17 engages the poppet valve actuating pin 15a and lifts the poppet valve 15 from its seat. Compressed air then escapes through the compressed air flow path formed by the passages 14a and 14b and through the nozzle insert 39.
  • the flow of compressed air through the nozzle insert creates a reduced pressure through thepassage 25 and in the concave portion 21a of the recess 21, thus causing the diaphragm 24 to bend downwardly to open the slit 24a.
  • Product is thus aspirated through the passage 25 and is entrained in the flow of comprssed air and dispensed as a spray from the nozzle insert.
  • the air return means operates as follows. With the parts in the positions as shown in FIGS. 1 and 3, i.e. the rest or non-dispensing positions, the pressure of the spring 19 on the annular gasket 30 is not sufficient to force it into the annular groove 28, so that there is an air passage into the interior of the sleeve 17 through the apertures 27, the groove 28 and the grooves 29. However, when the cylinder 17 and piston 10a, 10b, 10c are pressed toward each other, the spring 19 is compressed, and the gasket 30 is forced into the annular groove 28 and closes the apertures 27, as shown in FIG. 4. This blocks passage of air back through the air passage which is normally present, so that air trapped within the cylinder 17 can be compressed.
  • the device of the present invention also includes in the replaceable element the nozzle insert and the product flow control means.
  • the product control means which is provided is a simple diaphragm which is easily manufactured and inserted in place, and yet is reliable in operation.
  • the air return means is also simplified and yet reliable in operation, and consists only of the gasket 30 and the configuration of the inside of the closed end of the cylinder.
  • this system by its very nature dispenses a metered dose of product and the dose can be varied by changing the size of the piston cylinder.
  • a dispensing device comprising: an assembly in the form of a piston, said piston having a compressed air flow path therethrough; a valve member movable in said piston and obturating said compressed air flow path; a product container mounting forming part of said piston and being detachably connected thereto; aspirating means in said mounting at one end of said compressed air flow path, the other end of the compressed air flow path opening out of the piston remote from said aspirating means; said product container mounting having a product container means therein and a product flow path therethrough from said product containing means to said aspirating means; a closed end cylinder around and in air tight sliding engagement with.
  • said piston and said cylinder being relatively movable toward each other in a compression stroke to compress air within said cylinder air return means at the closed end of said cylinder, and extension means on at least one of said valve member and the closed end of said cylinder and engageable with the other at the end of the compression stroke for moving said valve member relative to said piston for opening said compressed air flow path only after the air in said cylinder is compressed.
  • a device as claimed in claim 1 in which the part of said piston other than said mounting comprises a lower body portion having a recess in the end thereof remote from the mounting into which the compressed air flow path opens, a valve seat member over the end of said recess, and a closed end sleeve over said lower body portion holding said valve seat member in place and having fastening means on the open end for detachable engagement with said mounting, said valve member being a poppet valve engageable with said valve seat member.
  • a device as claimed claim 3 in which sealing means are provided between said mounting and said lower body portion, said comprpressed air flow path 7 extending through the joint between said lower body and said mounting within the periphery of said sealing means.
  • a device as claimed in claim 1 in which said mounting has a recess therein and a closure member closing said recess, said recess and closure member defining said product containing means.
  • said product flow control means is a flexible diaphragm having at least one slit therein, said diaphragm being sufficiently flexible and resilient to be flexed under the aspirating action of said aspirating means to open said slit to pass product therethrough, and to close to prevent produt flow therethrough when the aspirating action of aid aspirating means ceases.
  • said product containing means is a recess in said mounting and has a concave end out of which said product flow path opens, said diaphragm being at the wide part of the concave end and flexing into said concave end under the aspirating effect of said aspirating means.
  • said air return means comprises a gasket, said closed end of said cylinder having apertures therein covered by said gasket, said device having spring means between said closed end of said cylinder and said piston urging said cylinder and piston away from each other, said spring means being engaged with said gasket for holding it in air tight engagement over said apertures during said compression stroke.
  • a device as claimed in claim 9 in which said closed end of said cylinder has said extension means thereon, said gasket being around said extension means, the inside surface of said closed end having an annular groove therein into which said apertures open, and said extension having grooves therein opening out of said annular groove past the edge of said gasket.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Nozzles (AREA)
US00206355A 1971-12-09 1971-12-09 Compressed air fluid product dispenser Expired - Lifetime US3764046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20635571A 1971-12-09 1971-12-09

Publications (1)

Publication Number Publication Date
US3764046A true US3764046A (en) 1973-10-09

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US00206355A Expired - Lifetime US3764046A (en) 1971-12-09 1971-12-09 Compressed air fluid product dispenser

Country Status (14)

Country Link
US (1) US3764046A (de)
JP (1) JPS4881114A (de)
AT (1) AT318472B (de)
BE (1) BE792446A (de)
CA (1) CA985231A (de)
CH (1) CH560145A5 (de)
DE (1) DE2260234B2 (de)
ES (1) ES409396A1 (de)
FR (1) FR2167010A5 (de)
GB (1) GB1410364A (de)
IT (1) IT974851B (de)
NL (1) NL7216631A (de)
SE (1) SE390117B (de)
ZA (1) ZA728604B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910465A (en) * 1974-11-04 1975-10-07 Ciba Geigy Corp Product pressurized compressed air dispenser
US3926343A (en) * 1974-03-26 1975-12-16 Ciba Geigy Corp Atomized spray dispenser with improved atomization
US3933279A (en) * 1972-11-28 1976-01-20 Ciba-Geigy Corporation Aerosol dispenser for fluid products comprising a piston pump assembly for generating compressed air
US3940030A (en) * 1974-08-16 1976-02-24 Hirosi Kondo Dispenser device for taking out contents
US3979027A (en) * 1974-11-04 1976-09-07 Ciba-Geigy Corporation Product pressurized compressed air dispenser having improved product control valve actuator
USRE29176E (en) * 1974-11-04 1977-04-12 Arthur D. Little, Inc. Product pressurized compressed air dispenser
USRE29707E (en) * 1975-09-19 1978-07-25 Product pressurized air dispenser having improved product control valve actuator
US5027808A (en) * 1990-10-31 1991-07-02 Tenax Corporation Breath-activated inhalation device
US5366122A (en) * 1991-08-27 1994-11-22 Ing. Erich Pfeiffer Gmbh & Co. Kg Dispenser for flowable media
US20080134969A1 (en) * 2006-12-07 2008-06-12 Eisenmann Anlagenbau Gmbh & Co. Kg Powder coating cabin for a powder coating installation
CN105626484A (zh) * 2016-03-09 2016-06-01 宁波市艾柯特工具科技发展有限公司 一种打气筒通用气嘴
CN108237028A (zh) * 2018-03-09 2018-07-03 宁波李氏实业有限公司 一种单轴式喷枪
WO2019043144A1 (en) * 2017-09-04 2019-03-07 Ki Development Aps CLOSED PRESERVATION SYSTEM

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638602A1 (de) * 1995-10-31 1997-05-15 Fritz Meckenstock Auslaßventil, insbesondere für eine handbetätigte Pumpe und handbetätigte Pumpe
DE10222610C2 (de) * 2001-05-18 2003-04-10 Dieter Gobbers Sprühapparat zum Einführen oder Aufbringen von Substanzen in oder auf den Körper
CN110498127A (zh) * 2019-07-31 2019-11-26 赫蕾雪(上海)科技有限公司 一种干粉喷雾器

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933279A (en) * 1972-11-28 1976-01-20 Ciba-Geigy Corporation Aerosol dispenser for fluid products comprising a piston pump assembly for generating compressed air
US3926343A (en) * 1974-03-26 1975-12-16 Ciba Geigy Corp Atomized spray dispenser with improved atomization
US3940030A (en) * 1974-08-16 1976-02-24 Hirosi Kondo Dispenser device for taking out contents
US3910465A (en) * 1974-11-04 1975-10-07 Ciba Geigy Corp Product pressurized compressed air dispenser
US3979027A (en) * 1974-11-04 1976-09-07 Ciba-Geigy Corporation Product pressurized compressed air dispenser having improved product control valve actuator
USRE29176E (en) * 1974-11-04 1977-04-12 Arthur D. Little, Inc. Product pressurized compressed air dispenser
USRE29707E (en) * 1975-09-19 1978-07-25 Product pressurized air dispenser having improved product control valve actuator
US5027808A (en) * 1990-10-31 1991-07-02 Tenax Corporation Breath-activated inhalation device
US5366122A (en) * 1991-08-27 1994-11-22 Ing. Erich Pfeiffer Gmbh & Co. Kg Dispenser for flowable media
US20080134969A1 (en) * 2006-12-07 2008-06-12 Eisenmann Anlagenbau Gmbh & Co. Kg Powder coating cabin for a powder coating installation
CN101195114B (zh) * 2006-12-07 2012-09-26 艾森曼股份公司 用于粉末涂装设备的粉末涂装室
CN105626484A (zh) * 2016-03-09 2016-06-01 宁波市艾柯特工具科技发展有限公司 一种打气筒通用气嘴
CN105626484B (zh) * 2016-03-09 2017-09-29 宁波市艾柯特工具科技发展有限公司 一种打气筒通用气嘴
WO2019043144A1 (en) * 2017-09-04 2019-03-07 Ki Development Aps CLOSED PRESERVATION SYSTEM
CN108237028A (zh) * 2018-03-09 2018-07-03 宁波李氏实业有限公司 一种单轴式喷枪
CN108237028B (zh) * 2018-03-09 2024-04-26 宁波李氏实业有限公司 一种单轴式喷枪

Also Published As

Publication number Publication date
DE2260234A1 (de) 1973-06-14
JPS4881114A (de) 1973-10-30
FR2167010A5 (de) 1973-08-17
AT318472B (de) 1974-10-25
CH560145A5 (de) 1975-03-27
ES409396A1 (es) 1975-12-16
SE390117B (sv) 1976-12-06
DE2260234B2 (de) 1975-11-13
GB1410364A (en) 1975-10-15
IT974851B (it) 1974-07-10
CA985231A (en) 1976-03-09
NL7216631A (de) 1973-06-13
ZA728604B (en) 1974-02-27
BE792446A (fr) 1973-06-08

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