EP1914006A2 - Pumpe mit Entlüftungsmitteln - Google Patents

Pumpe mit Entlüftungsmitteln Download PDF

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Publication number
EP1914006A2
EP1914006A2 EP07291216A EP07291216A EP1914006A2 EP 1914006 A2 EP1914006 A2 EP 1914006A2 EP 07291216 A EP07291216 A EP 07291216A EP 07291216 A EP07291216 A EP 07291216A EP 1914006 A2 EP1914006 A2 EP 1914006A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
pump according
pump
piston
translation
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Withdrawn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
EP07291216A
Other languages
English (en)
French (fr)
Inventor
Matthieu Vasseur
Christophe Roy
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Rexam Dispensing Systems SAS
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 Rexam Dispensing Systems SAS filed Critical Rexam Dispensing Systems SAS
Publication of EP1914006A2 publication Critical patent/EP1914006A2/de
Withdrawn legal-status Critical Current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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
    • 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

Definitions

  • the invention relates to a pump intended to be mounted on a bottle so as to allow the dispensing of a liquid contained in said bottle.
  • the liquid is of the gel or cream type, for example for use in cosmetics or for pharmaceutical treatments.
  • liquids are sometimes difficult to remove from the bottle by means of a pump.
  • the pump will have difficulty sucking the liquid.
  • the priming of the pump is also problematic since this phase requires a prior aspiration of air which, being compressible unlike the liquid to be dispensed, does not provide a suction force sufficient to fill the pump with the liquid.
  • priming problem pumps which are provided with means for closing the distribution path, said sealing means in particular to reduce the drying of the liquid in the distribution path.
  • the sealing means is an obstacle to the flow of air in the distribution path, said obstacle being difficult to pass through the compressed air in the pump.
  • the invention aims to solve the problems of the prior art by proposing in particular a pump which has a high air suction capacity in the priming phase.
  • a pump to be mounted on a bottle (not shown) so as to allow the distribution of a liquid contained in said bottle.
  • the liquid is a gel or a cream, for cosmetic use or for pharmaceutical treatments.
  • the pump comprises an association cup 1 on the bottle, said cup having an internal thread 2 which is intended to cooperate with a complementary thread provided on the ring of the bottle.
  • the cup 1 may comprise a geometry and / or configurations of association means on the bottle that are different.
  • the pump also comprises a pump body 3 which is integral with the cup, said body having a cylindro-conical geometry which is delimited by an inner surface. More particularly, the body 3 functionally comprises three cylinder sections 3a, 3b, 3c of different diameters which are interconnected by two truncated cones 3d, 3e, and a groove 3f upper snap on the cup 1. In addition, an internal seal 4 is provided between the body 3 and the cup 1.
  • the pump comprises a third element secured to the bottle, namely a dip tube 5 whose upper part is fitted in the lower section 3c and whose lower part is immersed in the liquid contained in the bottle.
  • the pump comprises a nozzle 6 which is disposed in the body 3.
  • the nozzle 6 is integral with a push button 7 which is operable by the user so as to move said nozzle in said body.
  • the nozzle 6 comprises a substantially vertical distribution path which is formed of two radial upstream orifices 8 and a channel 9 in communication with said orifices. Furthermore, the downstream end of the channel 9 is inserted into the push button 7 to be in communication with a dispensing nozzle 10 via a path provided in said button. As will be seen in more detail in the following description, the nozzle 10 is integrated in the push button 7 to be able to distribute the liquid through a dispensing orifice 11.
  • the pump also comprises a piston 12 which is mounted in frictional contact against the inner surface of the body 3, and more particularly against the inner surface of the upper section 3a.
  • the piston 12 delimits a metering chamber 13 which is provided in the intermediate section 3b, said chamber being in communication with the dip tube 5 via a valve formed of a ball 14 placed on the lower cone trunk 3e .
  • the truncated cone 3e is provided with retaining tabs 15 of the ball 14 so as to form a retention cage of the latter at the bottom of the metering chamber 13.
  • the piston 12 is mounted around the nozzle 6 slidably, said sliding being constrained by a resilient biasing means formed of a spring 16 said preload. To do this, the upper turn of the spring 16 bears on a bearing surface of the nozzle 6, and the lower turn bears on the piston 12.
  • the pump is provided with a spring 17 for elastic return of the translation of the nozzle 6 in the body 3.
  • This spring 17 is provided in the metering chamber 13 respectively supported in the bottom thereof and on a stop 18 secured to the lower end of the nozzle 6.
  • the immobilized piston 12 slides on the nozzle 6 so as to allow the communication of the upstream orifices 8 with the metering chamber 13 on a so-called distribution stroke.
  • the metering chamber 13 being under pressure, it follows on the distribution stroke a rise of liquid in the distribution path, and therefore a distribution of said liquid through the nozzle 10.
  • the metering chamber 13 contains mainly air which is compressed on the compression stroke. Then, the opening of the upstream orifices 8 introduces compressed air into the distribution path without however, in certain cases, having a sufficient pressure to be able to be discharged via the nozzle 10.
  • the sealing means is an obstacle to the flow of air in the distribution path, said obstacle being difficult. passable by the compressed air in the metering chamber 13.
  • the application of the distribution pressure of said fluid makes it possible to deactivate the sealing means so as to allow its distribution through the nozzle 10.
  • the closure means comprises a tubular sleeve 20 of elastomer which is associated, for example by being attached (FIG. 1) or by non-adhering overmoulding, to a rigid member 21 provided with the dispensing orifice. 11.
  • the sleeve 20 comprises an open rear flange 20a which is engaged in a groove of the rigid body so as to anchor said sleeve on said body and thus prevent its ejection during dispensing.
  • the sleeve 20 also comprises a front cutout 20b which is arranged to open from reversibly under the effect of the dispensing pressure to let through the liquid from the orifice 11.
  • the inner surface of the body 3 incorporates air exhaust means which are arranged for, in part of the compression stroke, to break the frictional contact of the piston 12 on said surface so as to allow leakage from air from the metering chamber 13 towards the outside of the body 3.
  • air exhaust means which are arranged for, in part of the compression stroke, to break the frictional contact of the piston 12 on said surface so as to allow leakage from air from the metering chamber 13 towards the outside of the body 3.
  • the air exhaust means are disposed at the junction between the compression and dispensing strokes, more precisely in the part of the internal surface which is disposed just above the stop 19 (see circled area referenced C in Figure 1 b).
  • a piston 12 comprising a lower sealing lip 12a which is in frictional contact with the internal surface of the body 3.
  • the lip 12a is annular and extends in the direction of the metering chamber 13 away from the translation axis 22 of the nozzle 3.
  • the support of the piston 12 on the stop 19 is formed by means of said lower lip.
  • the piston 12 further comprises an upper sealing lip 12b which is in rubbing contact on the inner surface of the body 3, said upper lip extending opposite the lower lip 12a with respect to the direction of translation of the nozzle. 3.
  • the air exhaust means described are arranged to allow detachment of the lower lip 12a during its passage on said means.
  • the sealing lip 12a is made of semi-elastic material rigid so as to limit its ability to match the shape of the air exhaust means, thereby creating a specific air leakage loss of sealing.
  • the size of the air exhaust means is small enough to substantially prevent the passage of the liquid during the separation, so as not to degrade the liquid distribution performance. In any event, the presence of the upper lip 12b limits any leakage of liquid beyond the piston 12.
  • the air exhaust means are formed of a zone 23 of larger diameter than the nominal diameter of the section 3a. Indeed, during the passage of the lower lip 12a on the junction with the zone 23 of larger diameter ( Figure 1c), the seal between said lip and the body 3 is broken. In the embodiment shown, the zone 23 extends to the abutment 19 to a height such that the seal is found during the support of said lower lip on said stop.
  • the air exhaust means are formed of a boss 24, however more than one boss could also be envisaged, including several bosses distributed on the circumference of the body 3.
  • the boss comprises a through channel 25 whose dimension is arranged so that said channel is not closed during the passage of the lip 12a on him.
  • the through channel 25 extends along the translation axis 22 of the nozzle 6.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
EP07291216A 2006-10-20 2007-10-05 Pumpe mit Entlüftungsmitteln Withdrawn EP1914006A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0609247A FR2907518A1 (fr) 2006-10-20 2006-10-20 Pompe comprenant des moyens d'echappement d'air

Publications (1)

Publication Number Publication Date
EP1914006A2 true EP1914006A2 (de) 2008-04-23

Family

ID=38059785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07291216A Withdrawn EP1914006A2 (de) 2006-10-20 2007-10-05 Pumpe mit Entlüftungsmitteln

Country Status (3)

Country Link
US (1) US20080093389A1 (de)
EP (1) EP1914006A2 (de)
FR (1) FR2907518A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1987888A3 (de) * 2007-04-30 2010-06-02 Ing. Erich Pfeiffer GmbH Austragvorrichtung
CN104822465A (zh) * 2012-11-22 2015-08-05 阿普塔尔法国简易股份公司 流体产品分配构件

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070221686A1 (en) * 2006-03-27 2007-09-27 Taesung Industrial Co., Ltd. Liquid pump dispenser
ITMI20091648A1 (it) * 2009-09-25 2011-03-26 Modapack S R L "gruppo per la pressurizzazione e l'erogazione di sostanze fluide per una pompa ad azionamento manuale e pompa comprendente detto gruppo"
DE102013113791A1 (de) * 2013-12-10 2015-06-11 Rpc Bramlage Gmbh Spender
USD794450S1 (en) * 2014-06-19 2017-08-15 Aptar France Sas Dispenser
CN109649819A (zh) * 2019-01-15 2019-04-19 兴必盛塑业(南通)有限公司 一种泵组件及具有内容物排出功能的容器
KR20230131005A (ko) * 2022-03-04 2023-09-12 주식회사 태성산업 펌핑형 용기

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302372C2 (de) * 1967-01-17 1978-06-08 Pfeiffer Zerstäuber-Vertriebsgesellschaft mbH & Co KG, 7760 Radolfzell In einem gefaess eingebaute einfachwirkende handbetaetigte schubkolbenpumpe
FR2149669A5 (de) * 1971-08-19 1973-03-30 Step
US3774949A (en) * 1972-06-20 1973-11-27 M Eger Collapsible tow bar
JPS55373Y2 (de) * 1974-09-26 1980-01-08
AU540119B2 (en) * 1979-03-27 1984-11-01 Yoshino Kogyosho Co., Ltd. Manual atomizer
DE3315334A1 (de) * 1983-04-28 1984-10-31 Pfeiffer Erich Gmbh & Co Kg Zerstaeuber- oder dosierpumpe
ES2024106A6 (es) * 1990-03-29 1992-02-16 Monturas Sa Dispositivo de compresion para bombas de aspiracion.
US5702031A (en) * 1995-06-20 1997-12-30 Emson, Inc. Dispensing pump with priming feature
US7717303B2 (en) * 2005-02-09 2010-05-18 Lumson S.P.A. Pump for manually dispensing a fluid substance sealed in a container
US7575134B2 (en) * 2005-03-17 2009-08-18 Martin James H Self-sealing nozzle for dispensing apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1987888A3 (de) * 2007-04-30 2010-06-02 Ing. Erich Pfeiffer GmbH Austragvorrichtung
US8038036B2 (en) 2007-04-30 2011-10-18 Ing. Erich Pfeiffer Gmbh Discharge device
CN104822465A (zh) * 2012-11-22 2015-08-05 阿普塔尔法国简易股份公司 流体产品分配构件
CN104822465B (zh) * 2012-11-22 2017-03-22 阿普塔尔法国简易股份公司 流体产品分配构件

Also Published As

Publication number Publication date
FR2907518A1 (fr) 2008-04-25
US20080093389A1 (en) 2008-04-24

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