EP0424396A1 - Pompe a double effet - Google Patents

Pompe a double effet

Info

Publication number
EP0424396A1
EP0424396A1 EP89905278A EP89905278A EP0424396A1 EP 0424396 A1 EP0424396 A1 EP 0424396A1 EP 89905278 A EP89905278 A EP 89905278A EP 89905278 A EP89905278 A EP 89905278A EP 0424396 A1 EP0424396 A1 EP 0424396A1
Authority
EP
European Patent Office
Prior art keywords
piston
pump chamber
product
port means
supplemental
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.)
Withdrawn
Application number
EP89905278A
Other languages
German (de)
English (en)
Other versions
EP0424396A4 (en
Inventor
Lewis A. Micallef
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.)
Leeds and Micallef
Original Assignee
Leeds and Micallef
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 Leeds and Micallef filed Critical Leeds and Micallef
Publication of EP0424396A1 publication Critical patent/EP0424396A1/fr
Publication of EP0424396A4 publication Critical patent/EP0424396A4/en
Withdrawn legal-status Critical Current

Links

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
    • B05B11/1088—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 the pump being a double-acting pump

Abstract

Une pompe à double effet munie de déclencheur est disposée sur un récipient. Le problème des pulvérisateurs à déclencheur étant un manque de force et de rendement par coup, ledit disposisif comprend une pompe à piston améliorée, à double effet et actionnée par un déclencheur, qui présente une puissance de levier accrue par coup. La pompe (10) comprend un cylindre (40) doté d'un piston (42). Un joint à piston double (44) situé à l'extrémité intérieure dudit piston (42) comprend une soupape de sortie (60) co-axiale à un alésage longitudinal (5O) disposé dans le piston (42). Une chambre d'aspiration supplémentaire (74) qui communique également avec l'alésage (50) est définie entre les surfaces extérieures du piston (42) et les surfaces intérieures du cylindre (40) ainsi que le joint à piston double (44) et un anneau de blocage à l'arrière (41).
EP19890905278 1989-05-01 1989-05-01 Double acting pump Withdrawn EP0424396A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1989/001845 WO1990013497A1 (fr) 1989-05-01 1989-05-01 Pompe a double effet

Publications (2)

Publication Number Publication Date
EP0424396A1 true EP0424396A1 (fr) 1991-05-02
EP0424396A4 EP0424396A4 (en) 1991-12-11

Family

ID=22214972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890905278 Withdrawn EP0424396A4 (en) 1989-05-01 1989-05-01 Double acting pump

Country Status (3)

Country Link
EP (1) EP0424396A4 (fr)
CA (1) CA2015860A1 (fr)
WO (1) WO1990013497A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6468523B1 (en) 1998-11-02 2002-10-22 Monsanto Technology Llc Polypeptide compositions toxic to diabrotic insects, and methods of use
US7070071B2 (en) 2002-09-23 2006-07-04 Agouron Pharmaceuticals, Inc. Dispensing apparatus and method for liquid products, particularly medicinal products
SE0202800D0 (sv) * 2002-09-23 2002-09-23 Pharmacia Ab Dispensing apparatus and method for liquid products, particularly medicinal products
CN107117381A (zh) * 2017-06-20 2017-09-01 上海帝凡奇机电设备有限公司 一种双泵双作用手扣式喷雾器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR479746A (fr) * 1915-08-30 1916-05-03 Alfred William French Perfectionnements apportés aux appareils à vaporiser un jet de liquide
US4646969A (en) * 1982-11-19 1987-03-03 Ceskoslovenska Akademie Ved Double acting mechanical pump liquid atomizer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583605A (en) * 1969-01-17 1971-06-08 Diamond Int Corp Liquid dispensing pump
US3531224A (en) * 1969-04-07 1970-09-29 Cook Chem Co Hand pump having free floating valve
US4591077A (en) * 1985-01-28 1986-05-27 Corsette Douglas Frank Continuous discharge dispenser
US4826052A (en) * 1987-07-06 1989-05-02 Leeds And Micallef Trigger pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR479746A (fr) * 1915-08-30 1916-05-03 Alfred William French Perfectionnements apportés aux appareils à vaporiser un jet de liquide
US4646969A (en) * 1982-11-19 1987-03-03 Ceskoslovenska Akademie Ved Double acting mechanical pump liquid atomizer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9013497A1 *

Also Published As

Publication number Publication date
CA2015860A1 (fr) 1990-11-01
EP0424396A4 (en) 1991-12-11
WO1990013497A1 (fr) 1990-11-15

Similar Documents

Publication Publication Date Title
US4826052A (en) Trigger pump
US4646969A (en) Double acting mechanical pump liquid atomizer
US5622317A (en) Pressure buildup trigger sprayer
CA1279043C (fr) Debiteur avec pompe commandee a la main
AU720329B2 (en) Trigger sprayer for dispensing liquids combined from separate compartments
US7311227B2 (en) Trigger sprayer venting system with reduced drag on vent piston
JPH0114820B2 (fr)
US5353969A (en) Invertible pump sprayer having spiral vent path
US5163588A (en) Atomizing pump dispenser for water based formulations
EP0953381A3 (fr) Distributeur à pompe pour fluides
KR970700625A (ko) 분배기(dispensing apparatus)
US20030164387A1 (en) Pneumatic reciprocating motor and grease gun incorporating same
US5054659A (en) Double acting pump
CA2179123A1 (fr) Pulverisateur a gachette a orifice de mise a l'air libre
US5711459A (en) Double action trigger sprayer
AU682918B2 (en) Pump sprayer with stationary discharge
US5351863A (en) Manually-operated dispensing pump
US4674659A (en) Universal sequential dispensing pump system
EP0424396A1 (fr) Pompe a double effet
US6269981B1 (en) Oil dispensing apparatus
US5722569A (en) Trigger sprayer with discharge port blocking mechanism
US5088629A (en) Pressure build-up pump sprayer having improved valving means
US5715974A (en) Trigger sprayer having central vent cylinder
US6260736B1 (en) Condiment pump
US5722566A (en) Double action water gun

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19901227

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

A4 Supplementary search report drawn up and despatched

Effective date: 19911023

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 19920907

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19930119