EP1497038A1 - Abgabepumpe für medien - Google Patents

Abgabepumpe für medien

Info

Publication number: EP1497038A1
Authority: EP; European Patent Office
Prior art keywords: piston; pump; pump body; radial shoulder; distribution
Prior art date: 2002-04-17
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

Application number

EP03740603A

Other languages

English (en)

French (fr)

Other versions

EP1497038B1 (de

Inventor

Pascal Bruna

Gérard DUCOURRET

Serge Herry

Jean-Marc Pardonge

Ludovic Petit

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.)

Aptar France SAS

Original Assignee

Valois 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.)

2002-04-17

Filing date

2003-04-14

Publication date

2005-01-19

2003-04-14 Application filed by Valois SAS filed Critical Valois SAS

2005-01-19 Publication of EP1497038A1 publication Critical patent/EP1497038A1/de

2005-10-26 Application granted granted Critical

2005-10-26 Publication of EP1497038B1 publication Critical patent/EP1497038B1/de

2023-04-14 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000012263 liquid product Substances 0.000 title abstract 2
238000007789 sealing Methods 0.000 claims abstract description 20
239000012530 fluid Substances 0.000 claims description 12
230000006866 deterioration Effects 0.000 description 2
230000015556 catabolic process Effects 0.000 description 1
238000006731 degradation reaction Methods 0.000 description 1
230000000593 degrading effect Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1

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
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element
- 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
- 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

Definitions

the present invention relates to a fluid dispenser pump with manual actuation, as well as a fluid dispenser device comprising such a pump.
pumps generally comprise a pump body in which a piston slides between a rest position and a dispensing position, said piston being moved by the user towards its dispensing position to dispense the product contained in said pump, for example in a pump chamber.
the pump comprises means for defining the rest position and means for defining the distribution position of the piston. These means are generally produced in the form of stops which define the positions of the ends of the piston. It is known to produce the stop defining the dispensing position by means of a shoulder in the pump body, so that when the piston abuts against said shoulder, it is no longer possible to move the piston further relative to the pump body, which defines the actuating end position or piston distribution position.
this implementation has a drawback.
the sealing lip of the piston, and in particular the active part of this sealing lip that is to say the part which forms the sealed contact between the lip and the pump body, abuts against a radial shoulder, so that this active part is subjected to axial stresses or forces.
this can lead to deformation or damage to the sealing lip of the piston, and in particular of its active sealing part, which may have the consequence of degrading the performance of the pump.
the piston is moved to its dispensing position by the assembly machine. This movement can be carried out relatively violently, and in any case much more strongly than when the pump is used by a user.
the object of the present invention is to provide a pump for dispensing a fluid product which does not have the abovementioned drawbacks.
the present invention thus aims to provide a fluid dispensing pump which protects the piston and prevents any deterioration in the performance of the pump, thereby improving the life of the latter.
the present invention also aims to provide such a fluid dispensing pump which is simple and inexpensive to manufacture and assemble.
the lower axial edge of the lower lip of the piston is oblique, so that in the piston distribution position, the non-active part of the lower edge is in abutment contact with said radial shoulder of the pump body, while the active sealing part extends in said annular clearance.
the present invention also relates to a device for dispensing a fluid product comprising a pump as defined above.
Figure 1 schematically shows a fluid dispenser pump to which the present invention can be applied.
the present invention is not limited to the pump shown in FIG. 1, but can be applied to all pumps in which a piston slides in a pump body, the actuating end position, or dispensing position, the piston being defined by a stop cooperating with the sealing lip of the piston.
the pump of FIG. 1 comprises a pump body 10 in which slides a first piston 50 connected, preferably in a single piece, to an actuating rod 60, advantageously hollow and incorporating an expulsion channel 61.
the pump of the The example of FIG. 1 further comprises a second piston 55 which slides in a part of reduced diameter of the pump body.
a pump chamber 20 is defined between these two pistons 50 and 55, as well as between an inlet valve 30 and an outlet valve 40.
the second piston 55 moves faster than the first piston 50, due to the differences in diameter, and the second piston 55 is adapted to mechanically open the outlet valve 40 at the end of the actuation stroke of the piston 50.

Landscapes

Details Of Reciprocating Pumps (AREA)
Reciprocating Pumps (AREA)

EP03740603A 2002-04-17 2003-04-14 Abgabepumpe für medien Expired - Lifetime EP1497038B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
FR0204811A FR2838785B1 (fr)	2002-04-17	2002-04-17	Pompe de distribution de produit fluide
FR0204811		2002-04-17
PCT/FR2003/001181 WO2003086649A1 (fr)	2002-04-17	2003-04-14	Pompe de distribution de produit fluide

Publications (2)

Publication Number	Publication Date
EP1497038A1 true EP1497038A1 (de)	2005-01-19
EP1497038B1 EP1497038B1 (de)	2005-10-26

Family

ID=28686137

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03740603A Expired - Lifetime EP1497038B1 (de)	2002-04-17	2003-04-14	Abgabepumpe für medien

Country Status (7)

Country	Link
EP (1)	EP1497038B1 (de)
JP (1)	JP2005527354A (de)
CN (1)	CN1317082C (de)
AU (1)	AU2003262155A1 (de)
DE (1)	DE60302057T2 (de)
FR (1)	FR2838785B1 (de)
WO (1)	WO2003086649A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2913731B1 (fr) *	2007-03-12	2013-08-09	Valois Sas	Pompe de distribution de produit fluide et distributeur comportant une telle pompe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2631393B1 (fr) *	1988-05-10	1993-09-17	Lindal Verpackungstech Gmbh	Pompe a precompression pour la diffusion d'un liquide
FR2674747B1 (fr) *	1991-04-05	1993-07-30	Step Soc Tech Pulverisation	Dispositif distributeur de gouttes de petit volume, notamment pour soins ophtalmologiques.
US6045008A (en) *	1998-04-30	2000-04-04	Calmar-Monturas, S.A.	Fluid pump dispenser

2002
- 2002-04-17 FR FR0204811A patent/FR2838785B1/fr not_active Expired - Lifetime
2003
- 2003-04-14 WO PCT/FR2003/001181 patent/WO2003086649A1/fr not_active Ceased
- 2003-04-14 AU AU2003262155A patent/AU2003262155A1/en not_active Abandoned
- 2003-04-14 CN CNB038085615A patent/CN1317082C/zh not_active Expired - Fee Related
- 2003-04-14 DE DE60302057T patent/DE60302057T2/de not_active Expired - Lifetime
- 2003-04-14 JP JP2003583648A patent/JP2005527354A/ja not_active Withdrawn
- 2003-04-14 EP EP03740603A patent/EP1497038B1/de not_active Expired - Lifetime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03086649A1 *

Also Published As

Publication number	Publication date
WO2003086649A1 (fr)	2003-10-23
DE60302057D1 (de)	2005-12-01
AU2003262155A1 (en)	2003-10-27
JP2005527354A (ja)	2005-09-15
DE60302057T2 (de)	2006-08-03
EP1497038B1 (de)	2005-10-26
CN1646232A (zh)	2005-07-27
CN1317082C (zh)	2007-05-23
FR2838785A1 (fr)	2003-10-24
FR2838785B1 (fr)	2005-09-09

Legal Events

Date	Code	Title	Description
2004-12-03	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
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2005-01-19	AX	Request for extension of the european patent	Extension state: AL LT LV MK
2005-04-13	17Q	First examination report despatched	Effective date: 20050224
2005-04-13	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2005-09-01	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2005-09-09	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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2006-09-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
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