US3756474A - Compressed air fluid product dispenser with metering chamber - Google Patents

Compressed air fluid product dispenser with metering chamber Download PDF

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Publication number
US3756474A
US3756474A US00212996A US3756474DA US3756474A US 3756474 A US3756474 A US 3756474A US 00212996 A US00212996 A US 00212996A US 3756474D A US3756474D A US 3756474DA US 3756474 A US3756474 A US 3756474A
Authority
US
United States
Prior art keywords
valve body
product
compressed air
flow path
piston
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
US00212996A
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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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba Geigy Corp filed Critical Ciba Geigy Corp
Application granted granted Critical
Publication of US3756474A publication Critical patent/US3756474A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering
    • B65D83/54—Metering valves ; Metering valve assemblies
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
    • G01F11/26—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus
    • G01F11/262—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus for liquid or semi-liquid

Definitions

  • a compressed air fluid product dispenser has a valve assembly having a valve body with at least a portion thereof in the form of a piston, the valve assembly having a compressed air flow path therethrough.
  • a valve member is movable in the valve body for obturating the compressed air flow path.
  • Aspirating means are provided at one end of the com-pressed air flow path, the other end of the compressed air flow path opening out of the valve body remote from the aspirating means.
  • the valve body has a metering chamber therein in communication with the aspirating means.
  • a product containing means is provided which forms part of said fluid product dispenser, and a product flow path extends through the valve body from the metering chamber to the product containing means.
  • Another object of the invention is to provide a fluid product dispenser of the type described in which the metering means and the product container means are arranged so that by inverting the device and then righting it, only a small amount of product is placedin position to be dispensed.
  • a fluid product dispenser comprising a valve assembly having a valve body in the form of a piston, said valve assembly having a compressed air flow path therethrough, a valve member movable in the valve body 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 valve body remote from said aspirating means, a metering chamber in communication with the aspirating means, and a product containing means in the device in communication with the metering chamber.
  • a closed end cylinder is fitted around the valve body in air tight sliding engagement with the closed end over the end of the compressed air flow path so that the cylinder and valve body 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 product container means is a product container around the valve body and the cylinder.
  • FIGS. 3-6 are sectional views taken on lines 3--3 to 6-6,. respectively, of FIG. 1.
  • valve body 10 has a reduced diameter portion 10a.
  • a closed end cylinder 17 is fitted over reduced diameter portion of the valve body 10, which cylinder extends part of the way along the reduced diameter portion 10a.
  • the closed end of the cylinder has an inwardly extending poppet valve actuating pin l8 thereon aligned with the aperture in the valve seat member 34.
  • a piston return spring 19 is held between the projection 18 and the valve seat member 34.
  • a first sealing ring 20a is positioned between the inside cylindrical surface of the cylinder 17 and the outer cylindrical surface of the reduced diameter portion 10a.
  • In the closed end of the cylinder 17 is an air return means which will be described in greater detail hereinafter.
  • a hollow extension 17a extends from the closed end of the cylinder 17.
  • the product container means is a product container 21 surrounding the cylinder 17 and the extension 17a.
  • the upper end of the product container is threaded at 22, and is threadedly joined to a collar which surrounds the valve body 10 and which is connected to the piston 17 by connecting members 17b.
  • the connecting members 17b extend downwardly within the container 21 along the reduced diameter portion 10a and then are joined at the bottom end to the top end of cylinder 17. Spaces 24 are left between the connecting members so that the space 10b around the reduced diameter portion a is in communication with the interior of the product container 21.
  • a second sealing ring 20b is provided between the collar 17c and the outside of the valve body 10.
  • the bottom of the container 21 extends over the end of the extension 17a and is sealed thereto by a ring gasket 25 and an aperture 26 is provided in the bottom of the container 21 opening into the interior of the extension 17a.
  • the bottom 28b of the recess 28 is concave, and out of the bottom opens a further product flow bore 31 which extends through the valve body 10 into the product supply chamber.
  • a product flow control means is provided in the recess 28, which is here shown in the form ofa diaphragm 32, described more fully hereinafter.
  • the size and shape of the product container 21 is sufficiently large to hold a relatively large quantity of product, enough for the device to be operated a large number of times while dispensing a small amount of product each time.
  • the size of the recess 28, on the other hand is relatively small, containing only a small amount of product, perhaps several times the quantity it is desired to dispense for each operation of the device.
  • the volume of the recess 28 plug the bore 27 is such that even the maximum amount of air flowing through the nozzle insert 39 cannot aspirate product from the product container 21. In this way, the compressed air passing through the nozzle insert 39 aspirates product only from the amount of product contained in the recess 28. This makes the device more efficient and accurate, since energy is not used to draw product all the way to the nozzle insert from the container 21.
  • the recess 28 is filled after every few operations of the device in a manner described hereinafter.
  • the parts of the device are normally in the positions as shown inFlG. l.
  • the spring 19 holds the cylinder 17 and the valve body 10 spaced apart, and the air passage through the air return means in the closed end of the cylinder is free to open. It will be assumed that the recess 28 is filled with product. Pressure is then exerted on the closed end of the cylinder 17 through the bottom of the product container 21 and extension 17a, and the cap 29, for example, by the thumb and forefinger, to urge the cylinder 17 and the valve body 10 toward each other while compressing the spring 19. The air compressed within the cylinder 17 presses the air return gasket 35 over apertures 33 and prevents flow of air therethrough.
  • the arrangement of the collar 17c around the valve body 10 and its connection to the piston 17 of which it forms an extension makes possible the admission of air to the product container and the metering chamber 28 and product bore 27 to break any vacuum which may be formed therein during aspiration of product.
  • the collar 17c moves along the outside of the valve body 10.
  • the connecting members 17b move past the further sealing ring 20b, the spaces 24 between the connecting membes 17b will be open to the atmosphere through the space between the collar 17c and the outside of the valve body 10. This will take place each time the piston 17 is actuated to cause aspiration. The aspiration will thus never have to take place against a vacuum.
  • valve body has been shaped to form a piston within the cylinder 17, this eliminates the need for a separately formed piston as has been used in the prior art devices.
  • the parts are relatively easily molded sleeves and body parts.
  • a fluid product dispenser comprising a valve assembly having a valve body with one end thereof in the form of a piston, said valve assembly having a compressed air flow path extending from the one end through the valve body, a valve member movable in the valve body and obturating the compressed air flow path, aspirating means at the end of the compressed air flow path remote from the one end of said valve body, the compressed air flow path at the one end of the valve body opening out of the said one end, said valve body having a metering chamber therein on the opposite side of said aspirating means from said one end and being in communication with said aspirating means, a product containing means forming part of said fluid product dispenser and located on the opposite side of said aspirating means from said metering chamber, a product flow path through said valve body from said metering chamber to said product containing means, and a closed end cylinder fitted around at least the pistonshaped portion of said valve body in air tight sliding engagement with the closed end over the end of the compressed air flow path, the cylinder and valve body being
  • a fluid product dispenser as claimed in claim 1 further comprising a product flow control means in said metering chamber for controlling flow of product to said aspirating means only when said aspirating means is aspirating.
  • a fluid product dispenser as claimed in claim 1 in which said product container is provided around said valve body and is connected to said piston for movement therewith, the engagement of said product container around said valve body being a sliding and sealing engagement.
  • a fluid product dispenser as claimed in claim 5 in which connecting members extend between said collar and said piston, and spaces are provided between said connecting members through which said product flow path opens into said container, said sealing ring being on said valve body and said collar moving relative thereto during said compression stroke, said connecting members and said spaces extending past said sealing ring at the end of said compression stroke to place the interior of said container in communication with the atmosphere through the space between the collar and the valve body at the end of the compression stroke.
  • a fluid product dispenser as claimed in claim 3 in which said piston has a hollow extension thereon ex tending away from said valve body, said product container having a bottom extending across the free end of said hollow extension in sealing engagement therewith, and said product container bottom having an aperture therein opening into said hollow extension,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
US00212996A 1971-12-28 1971-12-28 Compressed air fluid product dispenser with metering chamber Expired - Lifetime US3756474A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21299671A 1971-12-28 1971-12-28
CH1873072A CH565092A5 (ja) 1971-12-28 1972-12-22

Publications (1)

Publication Number Publication Date
US3756474A true US3756474A (en) 1973-09-04

Family

ID=43828277

Family Applications (2)

Application Number Title Priority Date Filing Date
US00212996A Expired - Lifetime US3756474A (en) 1971-12-28 1971-12-28 Compressed air fluid product dispenser with metering chamber
US426757A Expired - Lifetime US3860150A (en) 1971-12-28 1973-12-20 Aerosol dispenser for fluid products comprising a piston pump assembly for generating compressed air serving as propellant and a product metering device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US426757A Expired - Lifetime US3860150A (en) 1971-12-28 1973-12-20 Aerosol dispenser for fluid products comprising a piston pump assembly for generating compressed air serving as propellant and a product metering device

Country Status (14)

Country Link
US (2) US3756474A (ja)
JP (1) JPS4873807A (ja)
AT (1) AT319847B (ja)
BE (1) BE793319A (ja)
CA (1) CA982094A (ja)
CH (1) CH565092A5 (ja)
DE (1) DE2263852A1 (ja)
ES (1) ES410098A1 (ja)
FR (1) FR2170589A5 (ja)
GB (1) GB1410365A (ja)
IT (1) IT974365B (ja)
NL (1) NL7217748A (ja)
SE (1) SE389619B (ja)
ZA (1) ZA729138B (ja)

Cited By (14)

* 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
US3949939A (en) * 1975-03-26 1976-04-13 Smithkline Corporation Metered spray device
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
WO1990002095A1 (en) * 1988-08-22 1990-03-08 Diamond Jeffrey A Combined jug and sprayer
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
US5476198A (en) * 1993-05-26 1995-12-19 Valois S.A. Liquid dispenser device without a dip-tube
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
WO2002010037A1 (en) * 2000-07-28 2002-02-07 3M Innovative Properties Company Metered dose dispensing aerosol valve
US20180057248A1 (en) * 2015-02-27 2018-03-01 3M Innovative Properties Company Metered dose inhalers
CN108627212A (zh) * 2018-05-10 2018-10-09 北京红海科技开发有限公司 用于液体计量取用的工具、容器和方法
US11241705B2 (en) * 2017-12-10 2022-02-08 Jo-Anne Simard Fluid metering and dispenser device

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940030A (en) * 1974-08-16 1976-02-24 Hirosi Kondo Dispenser device for taking out contents
FR2384132A1 (fr) * 1977-03-18 1978-10-13 Oreal Ensemble constitue d'une pompe manuelle assistee pneumatiquement et de son recipient associe
DE3712327A1 (de) * 1987-04-11 1988-10-20 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
DE69028100T2 (de) * 1989-12-28 1997-03-13 Yoshino Kogyosho Co., Ltd., Tokio/Tokyo Flüssigkeitszerstäuber
FR2676010B1 (fr) * 1991-04-30 1993-08-13 Oreal Dispositif pour la distribution de mousse, et bouton-poussoir pour un tel dispositif.
US5180085A (en) * 1991-08-09 1993-01-19 Schmid Hans G Manually operated aerosol sprayer
FR2719789B1 (fr) * 1994-05-10 1996-07-05 Saint Laurent Parfums Yves Dispositif de distribution d'un produit en mélange avec un fluide, ensemble de distribution comprenant un tel dispositif.
ES2359198B1 (es) * 2009-08-11 2012-04-24 Valver Air Speed, .Sl Boquilla perfeccionada para pistola de pinturas y derivados por transferencia de fluidos.
PL3728060T3 (pl) 2017-12-19 2023-05-02 Precision Valve Corporation Zawór dozujący do dozowania produktu
KR102051207B1 (ko) * 2018-01-30 2019-12-03 이준석 원심분리용 피스톤

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876935A (en) * 1958-06-06 1959-03-10 David P Lindberg Criminal apprehension aid
US2997047A (en) * 1957-11-20 1961-08-22 Maynard E Anderson Dispenser structure
US3132807A (en) * 1960-10-12 1964-05-12 Nadai Alexander Spray device
US3369713A (en) * 1966-04-08 1968-02-20 Smith Kline French Lab Device for dispensing measured quantities of liquid
US3672545A (en) * 1970-06-09 1972-06-27 Ciba Geigy Corp Air pressure operated dispenser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655407A (en) * 1952-09-25 1953-10-13 Ingell Nelson Catlin Self-filling, hand-operated atomizer or spraying device
US3248021A (en) * 1962-11-26 1966-04-26 Calmar Inc Liquid dispenser
US3369757A (en) * 1964-10-16 1968-02-20 Tech De Pulverisation Sa Soc Liquid spraying devices
US3628700A (en) * 1969-06-02 1971-12-21 Robert J Dodoghue Premeasured liquid spray and foam dispenser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997047A (en) * 1957-11-20 1961-08-22 Maynard E Anderson Dispenser structure
US2876935A (en) * 1958-06-06 1959-03-10 David P Lindberg Criminal apprehension aid
US3132807A (en) * 1960-10-12 1964-05-12 Nadai Alexander Spray device
US3369713A (en) * 1966-04-08 1968-02-20 Smith Kline French Lab Device for dispensing measured quantities of liquid
US3672545A (en) * 1970-06-09 1972-06-27 Ciba Geigy Corp Air pressure operated dispenser

Cited By (16)

* 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
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
US3949939A (en) * 1975-03-26 1976-04-13 Smithkline Corporation Metered spray device
USRE29707E (en) * 1975-09-19 1978-07-25 Product pressurized air dispenser having improved product control valve actuator
WO1990002095A1 (en) * 1988-08-22 1990-03-08 Diamond Jeffrey A Combined jug and sprayer
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
US5476198A (en) * 1993-05-26 1995-12-19 Valois S.A. Liquid dispenser device without a dip-tube
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
WO2002010037A1 (en) * 2000-07-28 2002-02-07 3M Innovative Properties Company Metered dose dispensing aerosol valve
US6454140B1 (en) 2000-07-28 2002-09-24 3M Innovative Properties Companies Metered dose dispensing aerosol valve
US20180057248A1 (en) * 2015-02-27 2018-03-01 3M Innovative Properties Company Metered dose inhalers
US10029845B2 (en) * 2015-02-27 2018-07-24 3M Innovative Properties Company Metered dose inhalers
US11241705B2 (en) * 2017-12-10 2022-02-08 Jo-Anne Simard Fluid metering and dispenser device
CN108627212A (zh) * 2018-05-10 2018-10-09 北京红海科技开发有限公司 用于液体计量取用的工具、容器和方法

Also Published As

Publication number Publication date
FR2170589A5 (ja) 1973-09-14
AT319847B (de) 1975-01-10
NL7217748A (ja) 1973-07-02
DE2263852A1 (de) 1973-07-05
GB1410365A (en) 1975-10-15
CA982094A (en) 1976-01-20
ES410098A1 (es) 1975-12-16
ZA729138B (en) 1973-09-26
SE389619B (sv) 1976-11-15
CH565092A5 (ja) 1975-08-15
JPS4873807A (ja) 1973-10-05
US3860150A (en) 1975-01-14
IT974365B (it) 1974-06-20
BE793319A (fr) 1973-06-27

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