EP0798050A1 - Sprayer device with precompression pump operated manually by a trigger lever - Google Patents

Sprayer device with precompression pump operated manually by a trigger lever Download PDF

Info

Publication number
EP0798050A1
EP0798050A1 EP97105012A EP97105012A EP0798050A1 EP 0798050 A1 EP0798050 A1 EP 0798050A1 EP 97105012 A EP97105012 A EP 97105012A EP 97105012 A EP97105012 A EP 97105012A EP 0798050 A1 EP0798050 A1 EP 0798050A1
Authority
EP
European Patent Office
Prior art keywords
piston
liquid
valving
valve
delivery
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Withdrawn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
EP97105012A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giuseppe Dalsant
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.)
Coster Technologie Speciali SpA
Original Assignee
Coster Technologie Speciali SpA
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 Coster Technologie Speciali SpA filed Critical Coster Technologie Speciali SpA
Publication of EP0798050A1 publication Critical patent/EP0798050A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B05B11/1021—Piston pumps having an outlet valve which is a gate valve
    • B05B11/1022—Piston pumps having an outlet valve which is a gate valve actuated by pressure
    • 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
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • 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
    • B05B11/1061—Pump priming means
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material

Definitions

  • This invention relates to a manually operated sprayer device comprising: a body fixable to a container containing the liquid to be sprayed, a cylinder within this body, a piston movable within said cylinder, and an operating lever of trigger type mounted rotatable in said body and connected to said piston in such a manner as to move it in the two directions and on which there act elastic return means which react against the body and are out of contact with the liquid to be sprayed, a suction valve, a delivery valve, and a nozzle which receives the liquid pumped by the piston.
  • An object of the present invention is to provide a device of the described type which prevents dripping or not properly atomized delivery of liquid, this happening particularly at the beginning and end of delivery.
  • a further object of the present invention is to provide a device of the described type in which priming is facilitated.
  • the manual sprayer device S shown therein comprises a body 1 to be connected to a container containing the liquid to be dispensed.
  • the connection is made by an axially holed screw cap 3 to be screwed onto the threaded neck of the container, an insert 4 forced into the body 1 which carries on its tubular appendix 10 a conventional dip tube 5 passing through said screw cap 3, and an annular gasket 6 which is forced against the top of the container neck by an external flange 7 of the insert 4 when the screw cap 3 is screwed onto said neck.
  • a cylinder 8 In the body 1 there is provided a cylinder 8. This cylinder has an aperture 9 which communicates with a channel within which the liquid to be dispensed moves.
  • This channel is composed of a first portion represented by the dip tube 5 and the tubular appendix 10 on which it is mounted; a second portion formed by a chamber 11 bounded by a tubular appendix 12 of the insert 4, a ball 13 acting as an intake valve and seated on said tubular appendix 12, a precompression delivery valve 14 (described in greater detail hereinafter), the body 1 and a third portion, indicated by 15, which extends into the body 1 and into a threaded tubular appendix 16 which, together with a nozzle 17 screwed to it, defines a chamber in which a member 18 acting as a mixing head is provided.
  • the members 17 and 18 can be of any known type and as the present invention does not depend on them, the description will not further describe these parts.
  • a piston 19 having a hollow extension or rod 20 which terminates with a portion of smaller cross-section via a step 21A.
  • the end portion 21 extends through an intermediate aperture 22 of a trigger lever indicated overall by 23, rotatably secured to the body 1 in a manner known from the initially stated state of the art.
  • the intermediate aperture 22 is provided at the end of an axially hollow approximately frusto-conical projection 24 on the trigger lever 21.
  • the aperture 22 comprises saw-toothing which enables the end portion 21 of the rod to be inserted into the aperture 22, but prevents its extraction as in this case the toothing would bite into the rod material, which is chosen suitably softer than that of the lever. In this manner a reliable unidirectional connection is achieved between the lever 23 and the piston 19.
  • Said toothing enables movement to be transmitted in one direction by the trigger lever to the piston (in the case of Figure 1, towards the left, arrow A), the engagement between the step 21A and the inner face of the hollow frusto-conical projection 24 of the lever 21 enabling movement to be transmitted in the reverse direction.
  • the trigger lever also comprises two seats or recesses 30 positioned symmetrical about the plane of the drawing in proximity to the upper part of the lever. These recesses 30 house the ends of two arched springs 31 (only one is visible in Figure 1) of plastic material, as is practically the entire device, their other ends resting against internal supports 35 on the body 1. These springs are described for example in European patent 0529254.
  • the trigger lever is pivoted to the body 1, for example as described in detail in European patent 0529255, to which reference should be made.
  • the precompression delivery valve 14 is visible in Figures 2, 3 and 4 in various operating positions described hereinafter. This valve is mounted in the body 1, downstream of the chamber 11, in a tubular part 54 of said body which communicates with the portion 15 of the liquid passage channel.
  • the valve 14 comprises a guide bush 50, inserted into the tubular part 54 and retained therein by forced engagement between its frusto-conical rim 51 (projecting outwards) within the softer material of the body 1.
  • the bush comprises one or more holes 52 which open into an annular interspace 53 judiciously provided between the bush and tubular part 54 as far as the mouth of the portion 15 of the channel through which the liquid to be dispensed flows. Said rim 51 seals the lower end of the interspace 53.
  • An annular projection 55 is provided in correspondence with the rim, on the inside of the bush.
  • a valving piston 56 Within the bush and forming part of the valve 14, there is slidingly mounted a valving piston 56 provided with two spaced-apart seal lips 57 and 58 and lowerly with a prolongation 70.
  • a compression spring 59 acts on the valving piston 56 and against the roof 60 of the tubular part 54 where an integral spring guide 61 is provided.
  • the piston 19 Aligned with the hole 9, the piston 19 comprises a prolongation or appendix 62 which, as shown in Figure 3, on reaching its right end-of-travel position through the hole 9, engages the prolongation 70 of the valving piston 56 to deform the lower lip 58 and establish a connection between the chamber 11, the hole 52, the interspace 53, the channel 15 and the outside via the nozzle 17.
  • the pressure applied in opening the valve 14 and in pumping is proportional to the opposing force of the spring 59.
  • the spring 59 returns the valving piston 56 to its rest position and then interrupts the flow.
  • the embodiment of the invention is able to create a precompression (about 5-6 bars) and consequently produce a virtually instantaneous liquid emission and interruption.

Landscapes

  • Catching Or Destruction (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP97105012A 1996-03-29 1997-03-25 Sprayer device with precompression pump operated manually by a trigger lever Withdrawn EP0798050A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI960634 1996-03-29
IT96MI000634A IT1283712B1 (it) 1996-03-29 1996-03-29 Dispositivo spruzzatore azionabile manualmente tramite leve grilletto.

Publications (1)

Publication Number Publication Date
EP0798050A1 true EP0798050A1 (en) 1997-10-01

Family

ID=11373837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105012A Withdrawn EP0798050A1 (en) 1996-03-29 1997-03-25 Sprayer device with precompression pump operated manually by a trigger lever

Country Status (2)

Country Link
EP (1) EP0798050A1 (it)
IT (1) IT1283712B1 (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007106808A3 (en) * 2006-03-15 2008-06-26 Continentalafa Dispensing Co Trigger sprayer with integral piston rod and bowed spring
US7571836B2 (en) * 2006-03-07 2009-08-11 Meadwestvaco Calmar, Inc. Trigger sprayer with piston rod and spring snap connection
WO2011142951A1 (en) * 2010-05-10 2011-11-17 The Procter & Gamble Company Trigger actuated pump sprayer
WO2011142950A1 (en) * 2010-05-10 2011-11-17 The Procter & Gamble Company Trigger pump sprayer
WO2012161813A1 (en) 2011-04-13 2012-11-29 Meadwestvaco Calmar, Inc. Improved trigger sprayer valves
ITBS20120109A1 (it) * 2012-07-17 2014-01-18 Guala Dispensing Spa Dispositivo di erogazione a grilletto
US9132441B2 (en) 2011-06-16 2015-09-15 Obrist Closures Switzerland Gmbh Trigger pump dispenser with on/off indicator
USD878206S1 (en) 2017-07-24 2020-03-17 Obrist Closures Switzerland Gmbh Spraying device for bottles
WO2022145305A1 (ja) 2020-12-29 2022-07-07 キャニヨン株式会社 トリガースプレイヤー

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174056A (en) * 1977-05-10 1979-11-13 Ciba-Geigy Corporation Pump type dispenser with continuous flow feature
US4596344A (en) * 1983-10-07 1986-06-24 Corsette Douglas Frank Manually actuated dispenser
US5467900A (en) * 1994-03-16 1995-11-21 Afa Products, Inc. Precompression valve for trigger sprayer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174056A (en) * 1977-05-10 1979-11-13 Ciba-Geigy Corporation Pump type dispenser with continuous flow feature
US4596344A (en) * 1983-10-07 1986-06-24 Corsette Douglas Frank Manually actuated dispenser
US5467900A (en) * 1994-03-16 1995-11-21 Afa Products, Inc. Precompression valve for trigger sprayer

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7571836B2 (en) * 2006-03-07 2009-08-11 Meadwestvaco Calmar, Inc. Trigger sprayer with piston rod and spring snap connection
WO2007106808A3 (en) * 2006-03-15 2008-06-26 Continentalafa Dispensing Co Trigger sprayer with integral piston rod and bowed spring
US7497358B2 (en) * 2006-03-15 2009-03-03 Meadwestvaco Calmar, Inc. Trigger sprayer with integral piston rod and bowed spring
WO2011142951A1 (en) * 2010-05-10 2011-11-17 The Procter & Gamble Company Trigger actuated pump sprayer
WO2011142950A1 (en) * 2010-05-10 2011-11-17 The Procter & Gamble Company Trigger pump sprayer
CN102892514B (zh) * 2010-05-10 2016-05-18 宝洁公司 触发器式泵喷雾器
CN102892514A (zh) * 2010-05-10 2013-01-23 宝洁公司 触发器式泵喷雾器
AU2011253325B2 (en) * 2010-05-10 2014-05-01 The Procter & Gamble Company Trigger pump sprayer
CN103619488A (zh) * 2011-04-13 2014-03-05 米德韦斯特瓦科卡尔玛公司 经过改进的扳机喷雾器阀
CN103619488B (zh) * 2011-04-13 2017-09-08 米德韦斯特瓦科卡尔玛公司 经过改进的扳机喷雾器阀
EP2696990A1 (en) * 2011-04-13 2014-02-19 MeadWestvaco Calmar, Inc. Improved trigger sprayer valves
US9409195B2 (en) 2011-04-13 2016-08-09 Westrock Dispensing Systems, Inc. Trigger sprayer valves
EP2696990A4 (en) * 2011-04-13 2015-04-29 Meadwestvaco Calmar Inc IMPROVED TRIGGER SPRAYER VALVES
WO2012161813A1 (en) 2011-04-13 2012-11-29 Meadwestvaco Calmar, Inc. Improved trigger sprayer valves
US9132441B2 (en) 2011-06-16 2015-09-15 Obrist Closures Switzerland Gmbh Trigger pump dispenser with on/off indicator
US10173234B2 (en) 2011-06-16 2019-01-08 Obrist Closures Switzerland Gmbh Trigger pump dispenser with interchangeable piston
US9302284B2 (en) 2012-07-17 2016-04-05 Guala Dispensing S.P.A. Trigger dispensers
US20150151315A1 (en) * 2012-07-17 2015-06-04 Guala Dispensing S.P.A. Trigger dispensers
ITBS20120109A1 (it) * 2012-07-17 2014-01-18 Guala Dispensing Spa Dispositivo di erogazione a grilletto
WO2014013352A1 (en) * 2012-07-17 2014-01-23 Guala Dispensing S.P.A. Trigger dispenser
USD878206S1 (en) 2017-07-24 2020-03-17 Obrist Closures Switzerland Gmbh Spraying device for bottles
USD878207S1 (en) 2017-07-24 2020-03-17 Obrist Closures Switzerland Gmbh Spraying device for bottles
WO2022145305A1 (ja) 2020-12-29 2022-07-07 キャニヨン株式会社 トリガースプレイヤー

Also Published As

Publication number Publication date
ITMI960634A0 (it) 1996-03-29
ITMI960634A1 (it) 1997-09-29
IT1283712B1 (it) 1998-04-30

Similar Documents

Publication Publication Date Title
AU756592B2 (en) Trigger actuated pump sprayer
JP3372166B2 (ja) 前圧縮ポンプ型スプレー
AU761889B2 (en) Discharge valve assembly for trigger sprayer
US4191313A (en) Trigger operated dispenser with means for obtaining continuous or intermittent discharge
JP3136107B2 (ja) 予備圧縮ポンプ・スプレー
EP0145155B1 (en) Dispenser for a flowable product
US4728009A (en) Spray pump with container connector
US4271990A (en) Pumping system for dispensing product from a container
US5850948A (en) Finger-operable pump with piston biasing post
JPH09512208A (ja) 改良型予圧縮ポンプ
JPS6157066B1 (it)
AU2003221421B2 (en) Pump dispenser having an improved discharge valve
EP0795354A3 (en) Pre-compression pump sprayer
JP2002528667A (ja) プライミング機構を有する二重ばね予圧縮ポンプ
US4944431A (en) Trigger sprayer with multi-function piston
EP0798050A1 (en) Sprayer device with precompression pump operated manually by a trigger lever
EP0128585B1 (en) Hand manipulatable sprayer
EP1609529B1 (en) Manually operable pump for dispensing creamy substances
JPH1076195A (ja) 予備加圧型ポンプ・スプレー
US4215804A (en) Manual control dispensing pump for liquid containers
US5108013A (en) Pump for dispensing liquid from a container
EP1161387B1 (en) Atomizing pump spray
GB1453014A (en) Dispensing unit for liquid
AU682750B2 (en) Pump sprayer with stationary discharge
US6032833A (en) Non-throttling valve assembly

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

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: 19980402