US3796375A - Liquid spraying devices - Google Patents

Liquid spraying devices Download PDF

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Publication number
US3796375A
US3796375A US00279372A US3796375DA US3796375A US 3796375 A US3796375 A US 3796375A US 00279372 A US00279372 A US 00279372A US 3796375D A US3796375D A US 3796375DA US 3796375 A US3796375 A US 3796375A
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US
United States
Prior art keywords
piston
tube
chamber
valve
seat
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
US00279372A
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English (en)
Inventor
M Boris
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.)
Societe Technique de Pulverisation SA STEP
Original Assignee
Societe Technique de Pulverisation SA STEP
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 Societe Technique de Pulverisation SA STEP filed Critical Societe Technique de Pulverisation SA STEP
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Publication of US3796375A publication Critical patent/US3796375A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet

Definitions

  • ABSTRACT A liquid spraying device of the plunger tube type in which a knob on a plunger tube can be depressed to cause the liquid to be sprayed through a nozzle.
  • the plunger tube is surrounded by a piston which it entrains and which is movable in a chamber to expel the liquid through the tube.
  • the tube has orifices in its wall which communicate with the interior of the piston and with the chamber through a valve.
  • the piston has a portion which is elastically and transversely deformable and which in the inoperative condition closes the orifices and also closes the space communicating with the chamber through the valve.
  • This Specification shows a plunger-tube vaporiser which is fully sealed in the inoperative condition and which comprises two obturating elements connected operationally to one and the same control element and arranged, one between the front of the tube and the vaporiser nozzle, and the other in a passage which provides communication with the atmosphere for the vessel containing the liquid being vaporised, biasing means being used to bias these elements into their closed positions.
  • this vaporiser comprises a pumping chamber connected to the plunger tube through the medium of a non-return valve, a piston slidably assembled in said chamber, a tube slidably assembled in said piston connected thereto by a lostmotion link so that when the tube is axially displaced, it entrains the piston after travel, a control knob comprising a nozzle communicating with the tube and designed to displace same when depressed, a valve carried by that end of the tube opposite to the end at which the knob is located and arranged to be applied against the seat formed at the end of the piston, the tube comprising in the neighbourhood of said end at least one orifice opening into the interior of the piston, and a spring arranged between the valve and the base of the chamber which spring, on the one hand tends to apply the valve against its seat and on the other hand to place the piston in a rest position in which it closes off an opening through which the vessel containing the liquid for vaporising communicates with the atmosphere.
  • the tube is displaced against the action of the spring, by means of the knob.
  • the valve immediately lifts from its seat placing the pumping chamber in communication with the nozzle; then, the piston is driven in turn, so that the liquid in the chamber is delivered to the nozzle which atomises it.
  • the delivery pressure is initially very small and the atomising is poor; it is even possible that the liquid may exit from the nozzle in the form of an unatomised jet.
  • the same drawback can occur at the end of the atomising operation, when the user ceases the pressure on the knob.
  • the piston comprises a portion which is transversely and elastically deformable and which, in the inoperative condition, closes off the orifice or orifices provided in the neighbourhood of the end of the tube, and closes a space communicating with the chamber through the medium of the valve.
  • the delivery pressure drops; the deformable portion regains its initial shape and pulverisation stops suddenly, with no risk of the liquid Spurting out of the nozzle.
  • FIG. 1 is an axial sectional view of the pump of the vaporiser, the left hand half showing it in the inoperative position its right hand half showing it in the delivery position;
  • FIG. 2 is a transverse section on the line 11-11 of FIG. 1;
  • FIG. 3 is a sectional view of a detail of the pump, in the case where the delivery pressure is insufficient to deform the piston, and;
  • FIG. 4 is a sectional view on a larger scale of the piston and the pump chamber, on the line IV-IV of FIG. 1.
  • a pump chamber 4 is connected to a plunger tube 5 through the medium of a non-return valve 6, and in which a piston 7 is slidably assembled.
  • a tube 9 is slidably assembled within the piston with a predetermined longitudinal clearance e and at its internal end carries a valve 10 which can be applied against a seat 13 formed at the end of the piston 7.
  • the tube 9, in the proximity of the valve 10, contains orifices 15 designed to place the pump chamber 4 in communication with the tube 9.
  • a spring 11 arranged between the valve 10 and the base of the chamber 4, biases the valve on its seat.
  • a clearance 65 is provided between the tube 9 and the portion 7b of the piston which links said reduced portions 7a with the piston proper.
  • the tube 9 entrains the piston 7 which exerts pressure on the liquid contained in the chamber 4.
  • the liquid pressure is exerted upon the reduced portions 7a; when this pressure is sufficiently high, said reduced portions move transversely away from the orifices I5, uncovering them and allowing the liquid to flow to the nozzle at a pressure which has at least one determined value, this being a function of the flexibility of the portions 7a.
  • the thick parts separating the thin parts 7a prevent longitudinal distortion of the piston and a variation in the interval existing between the valve 10 and its seat 13. Atomising takes place as the piston 7 descends and delivers the liquid to the tube 9.
  • the pressure in the chamber 4 drops and the reduced portions 7a return to close off the orifices l5 and cut off the delivery of liquid to the nozzle as soon as the delivery pressure reaches a certain value.
  • the air contained in the pumping chamber 4 is compressed as the piston descends. It could happen that the pressure of this air is insufficient to cause the reduced portions 7a to lift; there would then be no discharge of air from the nozzle and the pump would not prime.
  • the wall of the pump chamber 4 contains internal bosses 4a at the lower end (FIG. 4). These bosses distort the piston 7 creating passages 66 which enable the air to escape from the chamber 4.
  • a liquid spraying device comprising a passage which can extend into a vessel for the liquid to be sprayed, a pumping chamber connected to the passage through a non return valve, a piston slidable in the chamber, a tube slidable in the piston and adapted to move and entrain the piston, a valve mounted on the end of the tube in the chamber and engaging a seat formed on the piston, at least one orifice in the tube adjacent one end thereof and opening into the interior of the piston, means for biasing the valve against the seat and for closing an opening through which the vessel communicates with the atmosphere, the piston having a portion which is transversely and elastically deformable and which in the inoperative position closes off the orifice and closes a space communicating with the chamber through the valve, that portion of the piston which is fitted over the tube having portions of reduced thickness opposite which the at least one orifice is located.
  • a liquid spraying device as claimed in claim 1 in which the tube carries a control knob comprising a nozzle communicating with the tube and adapted to depress the tube.
  • a liquid spraying device as claimed in claim 1 in which the means for biasing the valve against its seat and for closing the opening comprises a spring arranged between the valve and the base of the chamber.
  • a liquid spraying device which comprises:
  • a piston slidable in the chamber having a seat at one end thereof and having a portion which is transversely and elastically deformable;
  • a tube slidable in the piston and operative to move and entrain the piston, the tube having at least one orifice therein adjacent one end thereof and opening into the interior of the piston, the deformable portion of the piston being operative to selectively open and close the orifice.
  • a liquid spraying device according to claim 5, further comprising:
  • a valve mounted on the end of the tube in the chamber and engaging the piston seat, a space being provided between the seat and the valve communicating with the chamber, the space being closed when the tube is in a first position;
  • a liquid spraying device according to claim 6 wherein the deformable portion of the piston is operative to selectively open and close the orifice when the tube is in the second position.

Landscapes

  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
US00279372A 1971-08-19 1972-08-10 Liquid spraying devices Expired - Lifetime US3796375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7130273A FR2149671A6 (fr) 1971-08-19 1971-08-19

Publications (1)

Publication Number Publication Date
US3796375A true US3796375A (en) 1974-03-12

Family

ID=9082033

Family Applications (1)

Application Number Title Priority Date Filing Date
US00279372A Expired - Lifetime US3796375A (en) 1971-08-19 1972-08-10 Liquid spraying devices

Country Status (13)

Country Link
US (1) US3796375A (fr)
JP (1) JPS4830112A (fr)
AT (1) AT330341B (fr)
AU (1) AU468113B2 (fr)
BE (1) BE787270R (fr)
CA (1) CA965060A (fr)
CH (1) CH550614A (fr)
DE (1) DE2239262A1 (fr)
FR (1) FR2149671A6 (fr)
GB (1) GB1366774A (fr)
IT (1) IT1045011B (fr)
NL (1) NL7211372A (fr)
SE (1) SE400907B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865313A (en) * 1973-03-26 1975-02-11 Hiroshi Kondo Pressure accumulative sprayer device
US4010874A (en) * 1975-06-26 1977-03-08 Wolf Steiman Pump for hand-held dispensers
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
US5375745A (en) * 1991-09-05 1994-12-27 Ing. Erich Pfeiffer Gmbh & Co. Kg Media dispenser with initial pressure-relief state
US5553757A (en) * 1995-03-14 1996-09-10 Wang; Ming-Teh Cream dispenser head
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
US6036059A (en) * 1998-06-16 2000-03-14 Risdon/Ams Usa, Inc. Low profile and low force actuation dispensing pump
WO2006013418A1 (fr) * 2004-07-26 2006-02-09 Taplast S.P.A. Distributeur de fluides ou de mélanges
EP2019795A1 (fr) * 2006-05-22 2009-02-04 Chong Woo Co., Ltd. Petite pompe à main de vaporisateur
US20120000943A1 (en) * 2002-11-25 2012-01-05 Pares Montaner Pere Low height precompression pump
US20140252042A1 (en) * 2013-03-06 2014-09-11 Georgia-Pacific Consumer Products Lp Fluid dispenser

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235078A (en) * 1975-09-11 1977-03-17 Nippon Taiko Die Kk Hydraulic roll feeder
US4051983B1 (en) * 1975-11-19 1993-12-14 Calmar Inc. Pump sprayer having pump priming means
US4234127A (en) * 1978-02-01 1980-11-18 Canyon Corporation Manually operated sprayer
JPS6032505B2 (ja) * 1979-03-19 1985-07-29 株式会社吉野工業所 液体噴霧器
JPS5998105U (ja) * 1982-12-22 1984-07-03 小松造機株式会社 作業機シリンダのストロ−ク制御装置
DE3315334A1 (de) * 1983-04-28 1984-10-31 Pfeiffer Erich Gmbh & Co Kg Zerstaeuber- oder dosierpumpe
DE3909031A1 (de) * 1989-03-18 1990-09-27 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
FR2779185B1 (fr) * 1998-06-02 2002-02-15 Teleplastics Ind Pompe pour distributeur de produits fluides et pateux
CN103242211A (zh) * 2013-04-24 2013-08-14 北京化工大学 一种异丙苯/仲丁基苯混合氧化制取过氧化氢烷基苯的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257961A (en) * 1964-04-23 1966-06-28 Holmes T J Co Pump
US3331559A (en) * 1964-05-12 1967-07-18 Vaporisateurs Marcel Franck S Liquid atomizers
US3414169A (en) * 1967-02-17 1968-12-03 Diamond Int Corp Liquid dispenser
US3463093A (en) * 1967-01-17 1969-08-26 Erich Pfeiffer Kg Metallwarenf Simply operating push plunger pump housed in a container
US3500760A (en) * 1968-04-22 1970-03-17 Holmes T J Co Pump for an atomizer or the like
US3583605A (en) * 1969-01-17 1971-06-08 Diamond Int Corp Liquid dispensing pump
US3640470A (en) * 1969-02-26 1972-02-08 Lion Fat Oil Co Ltd Spray pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257961A (en) * 1964-04-23 1966-06-28 Holmes T J Co Pump
US3331559A (en) * 1964-05-12 1967-07-18 Vaporisateurs Marcel Franck S Liquid atomizers
US3463093A (en) * 1967-01-17 1969-08-26 Erich Pfeiffer Kg Metallwarenf Simply operating push plunger pump housed in a container
US3414169A (en) * 1967-02-17 1968-12-03 Diamond Int Corp Liquid dispenser
US3500760A (en) * 1968-04-22 1970-03-17 Holmes T J Co Pump for an atomizer or the like
US3583605A (en) * 1969-01-17 1971-06-08 Diamond Int Corp Liquid dispensing pump
US3640470A (en) * 1969-02-26 1972-02-08 Lion Fat Oil Co Ltd Spray pump

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865313A (en) * 1973-03-26 1975-02-11 Hiroshi Kondo Pressure accumulative sprayer device
US4010874A (en) * 1975-06-26 1977-03-08 Wolf Steiman Pump for hand-held dispensers
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
US5375745A (en) * 1991-09-05 1994-12-27 Ing. Erich Pfeiffer Gmbh & Co. Kg Media dispenser with initial pressure-relief state
US5655688A (en) * 1994-10-19 1997-08-12 Aptargroup, Inc. Atomizing pump with high stroke speed enhancement and valve system therefor
US5553757A (en) * 1995-03-14 1996-09-10 Wang; Ming-Teh Cream dispenser head
US5850948A (en) * 1996-09-13 1998-12-22 Valois S.A. Finger-operable pump with piston biasing post
US6036059A (en) * 1998-06-16 2000-03-14 Risdon/Ams Usa, Inc. Low profile and low force actuation dispensing pump
US20120000943A1 (en) * 2002-11-25 2012-01-05 Pares Montaner Pere Low height precompression pump
WO2006013418A1 (fr) * 2004-07-26 2006-02-09 Taplast S.P.A. Distributeur de fluides ou de mélanges
EP2019795A1 (fr) * 2006-05-22 2009-02-04 Chong Woo Co., Ltd. Petite pompe à main de vaporisateur
EP2019795A4 (fr) * 2006-05-22 2010-10-27 Chong Woo Co Ltd Petite pompe à main de vaporisateur
US20140252042A1 (en) * 2013-03-06 2014-09-11 Georgia-Pacific Consumer Products Lp Fluid dispenser

Also Published As

Publication number Publication date
DE2239262A1 (de) 1973-02-22
BE787270R (fr) 1972-12-01
IT1045011B (it) 1980-04-21
AU468113B2 (en) 1976-01-08
JPS4830112A (fr) 1973-04-20
SE400907B (sv) 1978-04-17
NL7211372A (fr) 1973-02-21
GB1366774A (en) 1974-09-11
FR2149671A6 (fr) 1973-03-30
CA965060A (en) 1975-03-25
CH550614A (fr) 1974-06-28
AU4554672A (en) 1974-02-21
AT330341B (de) 1976-06-25

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