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 PDFInfo
- 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- Withdrawn
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
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Catching Or Destruction (AREA)
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)
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)
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 |
-
1996
- 1996-03-29 IT IT96MI000634A patent/IT1283712B1/it active IP Right Grant
-
1997
- 1997-03-25 EP EP97105012A patent/EP0798050A1/en not_active Withdrawn
Patent Citations (3)
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)
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 |
---|---|
IT1283712B1 (it) | 1998-04-30 |
ITMI960634A0 (it) | 1996-03-29 |
ITMI960634A1 (it) | 1997-09-29 |
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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 |