EP0330530B1 - Pumpe mit Vorverdichtung - Google Patents

Pumpe mit Vorverdichtung Download PDF

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Publication number
EP0330530B1
EP0330530B1 EP89400211A EP89400211A EP0330530B1 EP 0330530 B1 EP0330530 B1 EP 0330530B1 EP 89400211 A EP89400211 A EP 89400211A EP 89400211 A EP89400211 A EP 89400211A EP 0330530 B1 EP0330530 B1 EP 0330530B1
Authority
EP
European Patent Office
Prior art keywords
pump according
piston
pump
section
chamber
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.)
Expired - Lifetime
Application number
EP89400211A
Other languages
English (en)
French (fr)
Other versions
EP0330530A1 (de
Inventor
Pierre Amiel
Jean-Louis Bougamont
Alain Behar
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
Societe Francaise dAerosols et de Bouchage
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 Societe Francaise dAerosols et de Bouchage filed Critical Societe Francaise dAerosols et de Bouchage
Priority to AT89400211T priority Critical patent/ATE75426T1/de
Publication of EP0330530A1 publication Critical patent/EP0330530A1/de
Application granted granted Critical
Publication of EP0330530B1 publication Critical patent/EP0330530B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B11/01—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
    • B05B11/1039—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being mechanically opened 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
    • B05B11/1001—Piston pumps

Definitions

  • the subject of the invention is a pump of this type, very effective despite its great structural simplicity: the precompression essentially results therefrom from the radial deformation of a part of the body, without preventing it from being accompanied by compression. of air inside the latter.
  • the part of the body in question has at least one side wall of non-circular main section, which leads the material to work not only in extension but especially in bending.
  • the inlet is also preferably closed with a drawer seal, which improves operating accuracy.
  • the pump bodies are usually drawn by circular or slightly divergent circular segments, the narrowest of which corresponds to the location of the gasket. 'admission and which are connected by widening step by step to form in particular the well of the return spring and then the chamber where the piston head moves.
  • the deformable part will advantageously retain an essentially cylindrical or slightly different shape, with straight generator segments, for example slightly conical; but its section will be flattened, for example elliptical, or better generally polygonal, in particular close to an equilateral triangle or a square, or even star or polylobed.
  • This substantially prismatic part connects two others of necessarily circular sections: that of the threshold and of the intake joint; that of the exhaust threshold, the vent and the corresponding seals, on which the piston slides. It could even be helical but it is not desirable that the radial deformation can thus be accompanied by a significant elongation.
  • the wall of the main chamber is cylindrical over almost its entire height, connecting to the circular zone of the end 12 c , carrying the admission threshold 13, and to that also circular 12 a from the seat of the exhaust gasket by two conical parts, still circular in the version shown.
  • this cylindrical portion 12 b is widened section and radially deformable, but because either circular trilobal as shown in Figure 4; its walls, thinned in the narrow region of the chamber, advantageously create a slight tightening on the rim 17 of the piston.
  • FIG. 6 shows that the cross section of the lower part 22 b of the pump body is this time star-shaped, and more exactly hexalobed; moreover, a slight obliquity of its ribs gives its longitudinal section, visible in FIG. 5, a slightly hyperbolic profile with a low undercut. This increases the nervousness of the wall of this body, which here consists of polyethylene.
  • Figure 5 comprises two half-sections represented in intermediate positions, one on the left end of compression, when the exhaust port 28 has unmasks, the other right at the end of rise of the piston 24, that is to say at the start of aspiration of a new dose of liquid.
  • the intake tube here forms an integral part of the lower part 22 c of the body.
  • the seal 26 has four active spans. The first two are interior and sliding. One, 26 a , in the form of a guide ring on the nozzle above the orifice 28 a could, if need be, be omitted; the other, 26 b , in the form of a lower lip, also serves as a high stop for the piston on the upper edge 27 b of its flange 27; advantageously, the lower edge 27 a of the latter serves on the contrary as a low stop for the piston on the body.
  • the other two bearing surfaces are external, 26 c sliding in the shape of a lip in the clearance 22 a , with a complementary seal at the bottom stop, finally 26 d at the top stop on the cup 21.
  • the three stops are oblique, mainly on the bearing 26 d with the collar of the cup and antagonistically on the reverse of the seat 26 b with the collar of the piston to increase the tightening, therefore the seal at rest under the effect of the return spring 25.

Landscapes

  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Nozzles (AREA)

Claims (12)

1. Pumpe mit einem Kolben (4), der einen Schieber im Inneren eines Körpers (2) bildet, welcher eine Ausströmöffnung (8a) verdeckt oder freilegt, wobei er eine Vorverdichtung bewirkt, dadurch gekennzeichnet, daß diese Vorverdichtung im wesentlichen durch eine Radialverformung eines nicht-kreisförmigen Querschnitt aufweisenden Teiles (2b ...) des Körpers erfolgt.
2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß der verformbare Teil zumindest eine Seitenwand aufweist, die im wesentlichen flach ist oder eine geringe Gesamtkrümmung hat.
3. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß der verformbare Teil einen allgemein polygonalen oder sternförmigen Querschnitt hat.
4. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß der verformbare Teil im wesentlichen zylindrische oder davon wenig abweichende, beispielsweise leicht konische oder hyperbelförmige Form aus geradlinigen Erzeugendensegmenten hat.
5. Pumpe nach Anspruch 4, dadurch gekennzeichnet, daß die Wände des verformbaren Teiles (12b) am Kolben klemmen, sobald sie in der Ruhestellung sind.
6. Pumpe nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die Kammer in ihrem oberen Teil (2a, 22a) kreisförmigen Querschnitt hat, sich aber dann in einen im wesentlichen prismatischen Schacht (2b, 22b) verjüngt.
7. Pumpe nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die Kammer (12b) vergrößerten Querschnitt hat und über nahezu ihre gesamte Höhe radial verformbar ist.
8. Pumpe nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß der Körper (12, 22) ferner eine leichte Längselastizität hat.
9. Pumpe nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß der Kolben (4 ...) einen Stift (4b ...) trägt, der dazu bestimmt ist, als Dichtungs- und Führungs-schieber an der Einlaßkante (3 ...) zu wirken.
10. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß sie mit äußeren Entlüftungsöffnungen (29) versehen ist und daß die Ausströmdichtung (26) die Form einer dünnen Hülse hat, die mit leichtem Spiel zwischen dem Körper (22) und der Kappe (21) in einer Ausnehmung (22e) im oberen Teil der Kammer festgelegt ist und zumindest drei aktive Ansätze hat, von denen der eine (26b) in Form einer unteren Lippe gleitet, welche zugleich als oberer Anschlag für den Kolben (24) dient, ein anderer (26c) in Form einer Lippe gleitet, die zugleich als unterer Anschlag in der Ausnehmung wirkt und schließlich ein dritter (26d) als oberer Anschlag an der Kappe und in der Ruhestellung als Gegenspieler zum ersten wirkt.
11. Pumpe nach Anspruch 10, dadurch gekennzeichnet, daß die beiden entgegengesetzten Anschläge (26b, 26d) schräg ausgebildet sind.
12. Pumpe nach Anspruch 10, dadurch gekennzeichnet, däß eine Ausströmdichtung am oberen Ende des Kolbenweges vorgesehen ist und an der Außenseite die Ausströmöffnung (28a) in der Ruhestellung verdeckt.
EP89400211A 1988-01-26 1989-01-26 Pumpe mit Vorverdichtung Expired - Lifetime EP0330530B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400211T ATE75426T1 (de) 1988-01-26 1989-01-26 Pumpe mit vorverdichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8800852 1988-01-26
FR8800852A FR2626253B1 (fr) 1988-01-26 1988-01-26 Pompe a precompression

Publications (2)

Publication Number Publication Date
EP0330530A1 EP0330530A1 (de) 1989-08-30
EP0330530B1 true EP0330530B1 (de) 1992-04-29

Family

ID=9362636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400211A Expired - Lifetime EP0330530B1 (de) 1988-01-26 1989-01-26 Pumpe mit Vorverdichtung

Country Status (7)

Country Link
US (1) US4936492A (de)
EP (1) EP0330530B1 (de)
AT (1) ATE75426T1 (de)
DE (1) DE68901351D1 (de)
ES (1) ES2032658T3 (de)
FR (1) FR2626253B1 (de)
GR (1) GR3005148T3 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652389B1 (fr) * 1989-09-26 1992-12-04 Debard Andre Perfectionnement aux pompes a precompression pour la diffusion d'un liquide.
US4984702A (en) * 1990-03-30 1991-01-15 Specialty Packaging Licensing Company, Inc. Assembly for securing and sealing a dispenser to a flanged container
FR2669244A1 (fr) * 1990-11-16 1992-05-22 Oreal Distributeur de produit, liquide a pateux, et embase pour un tel distributeur.
GB9202150D0 (en) * 1992-01-31 1992-03-18 Unilever Plc Pump dispensers
EP0557194B1 (de) * 1992-02-18 1996-09-25 S O F A B Austragvorrichtung mit elektrischem Motor
FR2689036B1 (fr) * 1992-03-26 1995-06-02 Sofab Distributreur à moteur électrique.
US5388766A (en) * 1993-09-22 1995-02-14 The Procter & Gamble Company High pressure atomization systems for high viscosity products
US5353969A (en) * 1993-10-13 1994-10-11 Calmar Inc. Invertible pump sprayer having spiral vent path
US6050457A (en) * 1995-12-06 2000-04-18 The Procter & Gamble Company High pressure manually-actuated spray pump
FR2742487B1 (fr) * 1995-12-18 1998-01-30 Teleplastics Ind Pompe a precompression a accumulation d'energie
US5918778A (en) * 1997-12-19 1999-07-06 Emson, Inc. Pump and pump securing device which maintains consistent dosage accuracy, and method of securing a pump to a container
GB9918626D0 (en) * 1999-08-07 1999-10-13 Glaxo Group Ltd Valve
ITBS20050013A1 (it) * 2005-02-04 2006-08-05 Guala Dispensing Spa Dispositivo per l'erogazione di un fluido ed elemento pompante
US8708669B1 (en) 2007-02-12 2014-04-29 Brunswick Corporation Fuel pumping system
FR2914286B1 (fr) * 2007-03-29 2011-09-30 Valois Sas Distributeur de produit fluide
US20090140009A1 (en) * 2007-11-30 2009-06-04 Pin-Yen Chen Pump for bottle
US10034583B2 (en) 2016-03-04 2018-07-31 Gpcp Ip Holdings Llc Dispenser with stroke adjustment capabilities

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104785A (en) * 1963-09-24 Metering valve for pressure packages
US3194447A (en) * 1964-02-10 1965-07-13 Vilbiss Co Atomizer pump
US3211346A (en) * 1964-07-15 1965-10-12 Meshberg Philip Pump-type dispenser
FR1502925A (fr) * 1966-10-12 1967-11-24 Vaporisateurs Marcel Franck Perfectionnements apportés aux pompes à piston pour la distribution de liquides ou pâtes fluides
US3452905A (en) * 1968-02-16 1969-07-01 Leeds & Micallef Self-sealing leak-proof pump
GB1327800A (en) * 1970-08-28 1973-08-22 Idees Soc Civ Pressurized measuring dispenser

Also Published As

Publication number Publication date
ATE75426T1 (de) 1992-05-15
FR2626253B1 (fr) 1990-05-18
ES2032658T3 (es) 1993-02-16
EP0330530A1 (de) 1989-08-30
FR2626253A1 (fr) 1989-07-28
GR3005148T3 (de) 1993-05-24
US4936492A (en) 1990-06-26
DE68901351D1 (de) 1992-06-04

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