EP1268083A1 - Organe de distribution a clapet de sortie forme par un piston differentiel - Google Patents
Organe de distribution a clapet de sortie forme par un piston differentielInfo
- Publication number
- EP1268083A1 EP1268083A1 EP01907797A EP01907797A EP1268083A1 EP 1268083 A1 EP1268083 A1 EP 1268083A1 EP 01907797 A EP01907797 A EP 01907797A EP 01907797 A EP01907797 A EP 01907797A EP 1268083 A1 EP1268083 A1 EP 1268083A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- differential piston
- chamber
- member according
- ferrule
- 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.)
- Granted
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
- B05B11/1001—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
- B05B11/1015—Piston pumps actuated 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
- B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
- B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation 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
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
Definitions
- Distribution device with outlet valve formed by a differential piston formed by a differential piston.
- the present invention relates to a fluid dispenser member intended to be mounted on the neck of a container.
- this dispensing member comprises a body defining a chamber, an actuating rod provided with a pusher, a piston mounted on the actuating rod and sliding in leaktight manner in the chamber, an inlet valve and an outlet valve.
- the piston By pressing the pusher, the piston is moved which reduces the volume of the pump chamber and thus puts the fluid it contains under pressure.
- the inlet valve closes and the outlet valve opens so as to discharge the fluid from the chamber to the outside.
- dispensing members such as pumps, in which the outlet valve is located inside the pump chamber and mounted to slide on the actuating rod.
- the piston is formed by a cuff defining on its outer periphery a sealing lip intended to slide in leaktight manner against the internal wall of the body.
- the cuff slides on the actuating rod so as to selectively mask and unmask one or more outlet orifices communicating with an internal conduit formed inside the actuating rod.
- the outlet orifice is located on the pusher so that it is movable with the latter. This type of distribution member is described in particular in document WO 95/29016.
- the piston is biased by a spring which bears on the one hand on the piston cuff, and on the other hand against a stop collar formed by an actuating rod.
- this type of pump has the disadvantage that the outlet valve is directly linked to the piston. It is therefore not possible to create or take advantage of a reduction which would either harden or soften the operation of the pump, and in particular the opening of its outlet valve.
- the present invention provides a fluid dispenser member comprising: a body defining a chamber, an actuating rod provided with a pusher, - a piston mounted on the actuating rod and sliding tightly in the bedroom, an inlet valve, and an outlet valve, the outlet valve comprising a differential piston displaceable under the action of the pressure exerted on the fluid product by the piston against the action of a spring which bears on the one hand on the differential piston and d on the other hand on the pusher.
- the piston and the differential piston are thus completely dissociated, so that they each have their own movement. In this case, they can have different races and diameters.
- the differential piston may have a larger diameter than the piston which slides in the chamber.
- said differential piston slides in the body.
- the body defines a cylindrical section in which the differential piston slides, said cylindrical section being provided with a passage hole selectively closable by said differential piston.
- the dispensing member will be fixed spray, that is to say provided with a dispensing orifice which does not move with the rod and the pusher.
- a ferrule is engaged in the body to define the rest position of the piston, said differential piston being biased by the spring against said ferrule.
- the differential piston slides in leaktight fashion on a cylindrical sleeve formed by the ferrule.
- the ferrule fulfills a double function here, namely that of stop for the piston in the rest position and that of stop for the differential piston also in the rest position.
- the cylindrical sleeve of the ferrule also serves as a guide means for the actuating rod in order to keep it in the axis.
- the differential piston is disposed between the pusher and the ferrule.
- the spring is located outside the chamber.
- the differential piston is located outside the chamber.
- FIG. 1 is a view in vertical cross section through a dispensing member mounted on a container neck, said member being in the rest position
- FIGS. 22a, 2b and 2c are views in cross section serving to illustrate the operation of the dispenser member of Figure 1.
- the fluid dispenser member which is here a precompression pump is shown mounted on a neck 10 of a container.
- a fixing ring 3 is used which cooperates with the internal wall of the neck 10, for example by snap-fastening.
- the fixing ring 3 can also form a housing in which a nozzle 8 is engaged.
- the pump will then be of the fixed spray type.
- the pump also comprises a body 2 engaged inside the fixing ring 3.
- a piston 4 is slidably mounted inside a barrel 20 defined by the body 2.
- the piston 4 is mounted at the end of an actuating rod 5 which ends at its upper end by a pusher 51 on which is pressed to activate the pump.
- the piston 4 and the body 2 together define a pump chamber 43 which communicates with the container through an inlet 230.
- the pump chamber is connected to the nozzle 8 by a discharge channel 23 which is formed between the body 2 and the fixing ring 3.
- a ferrule 6 is also engaged in the pump body 2: this ferrule 6 comprises a bushing 61 which forms at its lower end an abutment surface for the piston 4 in the rest position.
- the sleeve 6 forms a cuff 62 through which extends the actuating rod 5.
- This cuff 62 therefore constitutes guide means for holding the actuating rod 5 in the axis.
- the ferrule also defines its bearing surface 64.
- a differential piston 7 is provided to serve as a movable outlet valve member.
- the differential piston 7 is biased by a spring 52 against the bearing surface 64 of the ferrule 6.
- the spring 52 bears on the one hand against the differential piston 7 and on the other hand against the underside of the pusher 51.
- the differential piston is formed with a central sleeve 71 intended to slide in leaktight manner on the sleeve 62 formed by the ferrule 6.
- the differential piston is formed with an external sealing lip 72 in leaktight sliding contact with the body 2. More precisely, the body 2 forms at its upper end a cylindrical section 26 in which the differential piston 7 slides.
- This cylindrical section 26 is pierced with a through hole 25 which communicates with an outlet duct 35 formed by the fixing ring 3. From there, the product can flow through the nozzle 8, passing advantageously through channels and a swirl chamber. Since the sealing lip 72 of the differential piston 7 slides against the internal wall of the cylindrical section 26, it selectively masks and unmasks the passage hole 25. Consequently, the fluid coming from the pump chamber 43 to through the discharge channel 23 can flow through the passage hole 25 when the differential piston 7 unmasks the hole 25. In other words, the product at the outlet of the discharge channel 23 enters a valve chamber outlet 74 which increases in volume when the pressure inside the pump chamber 43 is sufficient to raise the differential piston 7 on the sleeve 62 of the ferrule 6 against the spring 52. It should therefore also be noted that the spring 52 serves both as a return and precompression piston.
- the internal diameter of the cylindrical section 26 is different from that of the barrel 20 of the body 2 in which the piston 4 slides.
- the diameter of the cylindrical section 26 is greater than that of the was so that a multiplying effect is created, since the differential piston 7 has a stroke less than that of the piston 4. In fact, it suffices for the differential piston 7 to move less than a millimeter to unmask the through hole 25, while the piston is moving nearly a centimeter.
- the single return and precompression spring 52 is located outside the chamber 43, that is to say out of contact with the fluid to be dispensed.
- the ferrule 6 fulfills several functions in this pump at the same time, namely that of top dead center for the piston 4, that of stop for the differential piston 7, that of sealed sliding wall with its sleeve 62 for the differential piston 7, that of the guide means with its sleeve 62 for the actuating rod 5.
- the ferrule 6 takes an additional blocking function with its sleeve 61 by blocking the snap-fastening of the fixing ring 3 to inside the neck 10 of the container 1.
- Such a ferrule 6 can for example be implemented with a differential piston having other characteristics.
- FIGS. 2a, 2b and 2c explain a complete actuation cycle of such a pump.
- the piston 4 In the position shown in FIG. 2a, the piston 4 is in its high position in abutment against the ferrule 6. No pressure is exerted on the pusher 51 and the spring 52 is in its most relaxed state with the differential piston 7 biased against the ferrule 6.
- the through hole 25 is then closed by the outer peripheral lip 72 of the differential piston 7.
- the piston 4 descends into the pump chamber 43 and the fluid stored inside is discharged through the discharge channel 23 into the outlet valve chamber 74.
- the product under pressure has the effect of displacing the piston differential against the spring 52 until its outer peripheral lip 72 unmasks the through hole 25, as shown in FIG.
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
- Reciprocating Pumps (AREA)
- Braking Systems And Boosters (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0003533 | 2000-03-20 | ||
FR0003533A FR2806330B1 (fr) | 2000-03-20 | 2000-03-20 | Organe de distribution a clapet de sortie forme par un piston differentiel |
PCT/FR2001/000437 WO2001070412A1 (fr) | 2000-03-20 | 2001-02-14 | Organe de distribution a clapet de sortie forme par un piston differentiel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1268083A1 true EP1268083A1 (fr) | 2003-01-02 |
EP1268083B1 EP1268083B1 (fr) | 2005-09-21 |
Family
ID=8848287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01907797A Expired - Lifetime EP1268083B1 (fr) | 2000-03-20 | 2001-02-14 | Organe de distribution a clapet de sortie forme par un piston differentiel |
Country Status (9)
Country | Link |
---|---|
US (1) | US6371337B2 (fr) |
EP (1) | EP1268083B1 (fr) |
JP (1) | JP2004511324A (fr) |
CN (1) | CN1171686C (fr) |
BR (1) | BR0109431A (fr) |
DE (1) | DE60113516T2 (fr) |
ES (1) | ES2250357T3 (fr) |
FR (1) | FR2806330B1 (fr) |
WO (1) | WO2001070412A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6592010B2 (en) * | 2001-03-22 | 2003-07-15 | Valois S.A. | Fluid dispenser |
US6554160B2 (en) * | 2001-03-22 | 2003-04-29 | Valois S.A. | Dispenser member such as a pump or a valve |
US7055721B2 (en) | 2001-03-23 | 2006-06-06 | Chong Woo Co., Ltd. | Finger-operated spray pump ejaculating fluid in fixed quantity |
KR100755809B1 (ko) * | 2001-03-23 | 2007-09-05 | 주식회사 종우실업 | 수동식 정량 분사 펌프 |
FR2828821B1 (fr) * | 2001-08-23 | 2004-01-23 | Valois Sa | Tete de distribution pour distributeur de produit fluide |
EP1532067B1 (fr) * | 2002-05-23 | 2008-09-17 | Cohen, Ben Z. | Pompe medicale de precision |
FR2840890B1 (fr) * | 2002-06-14 | 2004-10-15 | Valois Sa | Organe de fixation et distributeur de produit fluide comprenant un tel organe de fixation |
US7255248B2 (en) * | 2002-08-29 | 2007-08-14 | Emsar, Inc. | Plug style pump |
FR2845355B1 (fr) * | 2002-10-07 | 2005-09-09 | Valois Sas | Distributeur de produit fluide |
US20040069812A1 (en) * | 2002-10-07 | 2004-04-15 | Valois S.A.S. | Fluid dispenser |
EP1565270B1 (fr) * | 2002-11-25 | 2006-04-05 | Saint-Gobain Calmar, S.A. | Pompe de precompression a hauteur reduite |
FR2864042A1 (fr) * | 2003-06-20 | 2005-06-24 | Oreal | Dispositif de conditionnement et de distribution comportant un bouton-poussoir |
US7740154B2 (en) * | 2007-01-12 | 2010-06-22 | The Clorox Company | Bottle Fitment |
DE102007036999A1 (de) * | 2007-08-06 | 2009-02-19 | Nord-Micro Ag & Co. Ohg | Ausströmventil für ein Luftfahrzeug |
ES2764998T3 (es) | 2009-09-21 | 2020-06-05 | Nordson Corp | Válvula dispensadora de líquido accionada neumáticamente |
MX2013004380A (es) * | 2010-10-20 | 2013-12-06 | Meadwestvaco Calmar Inc | Mecanismos de bomba de precompresion. |
CN103303557B (zh) * | 2013-05-13 | 2016-06-08 | 中山市联昌喷雾泵有限公司 | 一种密封进气口式防漏液乳液泵 |
USD717666S1 (en) | 2014-03-14 | 2014-11-18 | The Clorox Company | Fluid dispenser |
CN104150081B (zh) * | 2014-08-18 | 2016-02-24 | 中山市联昌喷雾泵有限公司 | 一种变容式乳液泵 |
FR3032436B1 (fr) * | 2015-02-10 | 2019-08-30 | Louis Vuitton Malletier | Dispositif de conditionnement pour un produit a distribuer |
DE102018112442A1 (de) * | 2018-05-24 | 2019-11-28 | Gerhard Brugger | Dosierspender zur Dosierung von wenigstens einer in einem Aufnahmeabteil aufgenommenen Materialkomponente |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227628A (en) * | 1979-02-23 | 1980-10-14 | Parsons Frederick L | Fluid dispensing pump having axially deformable valve |
JPS61905Y2 (fr) * | 1979-06-28 | 1986-01-13 | ||
US5217148A (en) * | 1991-02-11 | 1993-06-08 | Spruhventile Gmbh | Pharmaceutical pump dispenser |
FR2686377B1 (fr) * | 1992-01-20 | 1994-03-25 | Valois | Pompe a precompression perfectionnee. |
FR2719242B1 (fr) | 1994-04-27 | 1996-07-12 | Valois Sa | Pompe à précompression perfectionnée. |
FR2726045B1 (fr) * | 1994-10-19 | 1997-01-10 | Sofab | Pompe miniature a precompression |
FR2742812B1 (fr) * | 1995-12-22 | 1998-02-20 | Valois | Pompe a precompression formee dans le poussoir |
FR2748406B1 (fr) * | 1996-05-07 | 1998-08-28 | Valois | Dispositif de distribution a spray fixe |
FR2764005B1 (fr) * | 1997-05-29 | 2004-12-10 | Sofab | Pompe a piston articule |
US6209759B1 (en) * | 1997-07-04 | 2001-04-03 | Valois S.A. | Hand-operated pump with a free floating sleeve piston |
IT1294275B1 (it) * | 1997-07-24 | 1999-03-24 | Giovanni Albini | Pulsante per l'erogazione di fluidi attraverso un ugello mobile sul pulsante stesso |
FR2777209B1 (fr) * | 1998-04-14 | 2000-06-30 | Sofab | Dispositif pour le prepositionnement d'une collerette d'habillage sur un bouton-poussoir |
US6170713B1 (en) * | 1998-10-28 | 2001-01-09 | Emson, Inc. | Double spring precompression pump with priming feature |
GB2344857B (en) * | 1998-12-15 | 2001-03-14 | Bespak Plc | Improvements in or relating to dispensing apparatus |
-
2000
- 2000-03-20 FR FR0003533A patent/FR2806330B1/fr not_active Expired - Fee Related
-
2001
- 2001-02-14 WO PCT/FR2001/000437 patent/WO2001070412A1/fr active IP Right Grant
- 2001-02-14 BR BR0109431-9A patent/BR0109431A/pt not_active IP Right Cessation
- 2001-02-14 DE DE60113516T patent/DE60113516T2/de not_active Expired - Lifetime
- 2001-02-14 ES ES01907797T patent/ES2250357T3/es not_active Expired - Lifetime
- 2001-02-14 EP EP01907797A patent/EP1268083B1/fr not_active Expired - Lifetime
- 2001-02-14 CN CNB018083528A patent/CN1171686C/zh not_active Expired - Fee Related
- 2001-02-14 JP JP2001568596A patent/JP2004511324A/ja not_active Withdrawn
- 2001-03-16 US US09/809,877 patent/US6371337B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0170412A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE60113516T2 (de) | 2006-06-14 |
FR2806330B1 (fr) | 2002-10-25 |
EP1268083B1 (fr) | 2005-09-21 |
US20010022309A1 (en) | 2001-09-20 |
CN1424943A (zh) | 2003-06-18 |
CN1171686C (zh) | 2004-10-20 |
DE60113516D1 (de) | 2005-10-27 |
JP2004511324A (ja) | 2004-04-15 |
US6371337B2 (en) | 2002-04-16 |
WO2001070412A1 (fr) | 2001-09-27 |
ES2250357T3 (es) | 2006-04-16 |
BR0109431A (pt) | 2002-12-10 |
FR2806330A1 (fr) | 2001-09-21 |
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