EP0888824A1 - Handbetätigte Pumpe mit einem mit einer Manchette versehenen freien Kolben - Google Patents

Handbetätigte Pumpe mit einem mit einer Manchette versehenen freien Kolben Download PDF

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Publication number
EP0888824A1
EP0888824A1 EP98401668A EP98401668A EP0888824A1 EP 0888824 A1 EP0888824 A1 EP 0888824A1 EP 98401668 A EP98401668 A EP 98401668A EP 98401668 A EP98401668 A EP 98401668A EP 0888824 A1 EP0888824 A1 EP 0888824A1
Authority
EP
European Patent Office
Prior art keywords
rod
pump
piston
cuff
actuating rod
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
Application number
EP98401668A
Other languages
English (en)
French (fr)
Other versions
EP0888824B1 (de
Inventor
Yannic Hermouet
Claude Jouillat
stéphane Beranger
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.)
Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP0888824A1 publication Critical patent/EP0888824A1/de
Priority to US09/346,821 priority Critical patent/US6209759B1/en
Priority to US09/760,038 priority patent/US6471097B2/en
Application granted granted Critical
Publication of EP0888824B1 publication Critical patent/EP0888824B1/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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem

Definitions

  • a pump of this type is notably known from the document EP-A-0 453 357.
  • This pump comprises a rod actuator movable in a pump body.
  • a piston in the form of a deformable elastic cuff is mounted on the actuating rod.
  • This piston slides tightly against the inner wall of the body of also pumps and closes cross channels which lead to the internal channel of the actuating rod.
  • the upper end of the cuff that forms the piston is in abutment abutment against a shoulder formed by the actuating rod.
  • the cuff deforms while remaining abutment support against the shoulder of the rod actuation so as to withdraw from the channels transverse, so that the pressurized fluid in the pump chamber passes through these cross channels and the internal conduit of the actuating rod.
  • the piston / sleeve is therefore always subject to a constraint which is exerted on the height of the cuff between the stop on the shoulder of the actuating rod and the sealed contact of the lip of the piston with the internal wall of the pump body. Through therefore, the cuff tends to deform under the effect of this permanent constraint so that it no longer completely seals the channels transverse of the actuating rod.
  • the pump described in this document includes also an actuating rod on which is mounted a piston in the form of a cuff.
  • the piston includes leak-tight sealing lips against the inner wall of the pump body. Headlines tightly closes transverse conduits which lead to the central channel of the actuating rod.
  • the end upper cuff is pressed against a shoulder formed by the actuating rod. Headlines has a thinner section, which gives a certain elasticity by bending. This flexural elasticity is used to release the transverse ducts when the pressure inside the pump chamber reaches a sufficient level.
  • the cuff is permanently subjected to a axial stress exerted between the stop against the shoulder of the actuating rod and another stop lower than the actuating rod also forms just below the cross ducts.
  • Document FR-2,563,287 further describes a pump with cuff forming the piston whose upper end engages on a frustoconical surface by deformation radial to perform the spring function.
  • the downside with this type of spring is that the cuff remains stuck on the frustoconical surface and does not descends more to close the transverse conduits. The the pump is then unusable.
  • the cuff is subject to permanent stress, since it is wedged between the frustoconical surface and a stop rim defined at the lower end of the rod actuation.
  • the object of the present invention is to overcome the aforementioned drawbacks of the prior art by defining a manual precompression pump including the cuff of the piston is not subject to any permanent stress and which therefore has better resistance to aging.
  • the spring function is here ensured by the friction force differential. Indeed, as soon as the pressure has dropped in the pump chamber after opening the outlet valve, the piston remains momentarily static with respect to the pump body until the stem comes to pick it during its ascent to its rest position. The piston is then in contact pressed on the rod to close the valve output, this contact being proportional to the difference of friction forces between the rod and the body pump. But, since according to the invention, this differential is positive in favor of the pump body, we guarantee closing the outlet valve at the start of the raising the actuating rod. We can thus go from a precompression spring or means equivalents as described in the above documents of the prior art.
  • the rod has a stop surface with which the piston cooperates during its sliding upward to create a seal at this level. Being since the frictional forces must be low between the piston and the rod, it is preferable to plan means ensuring a seal at this level.
  • This stop surface does not generate any stress or friction force when the pump is at rest, nor during of its initial activation phase. It is only when the pump reaches its maximum internal pressure as the piston abuts this surface to ensure sealing.
  • the piston has a cuff surrounding the actuating rod, said cuff with lower end in contact sealing at rest with the actuating rod for form the outlet valve and an upper end adapted to cooperate with the rod stop surface during sliding the piston upwards.
  • the internal diameter of the cuff engaged on the rod actuation is greater than the external diameter of the actuating rod.
  • the stop surface is frustoconical flaring outwards.
  • the upper end of the cuff defines an edge upper circular stopper sealed with surface stop.
  • the sealed stop edge is defined by the upper end of a recess internal
  • the outlet valve has a contact cylindrical seal adapted to be undone by sliding the piston upwards on the rod on a height such that the tight stop edge comes in tight contact of the stop surface before contact cylindrical seal is not released, to create a precompression.
  • the actuating rod includes means for radially compressing the lower end of the cuff.
  • the actuating rod is provided at its lower end with a member compression device for compressing the lower end of the cuff between the rod and said peripheral organ.
  • the peripheral compression member has a cylindrical surface concentric with the rod, thus together defining a receiving groove by tight wedge for the lower end of the cuff, connecting the inside of the upper actuation with the pump chamber.
  • the height of the cylindrical surface concentric of the peripheral compression organ determines the dead stroke height during which the sleeve remains in sealing contact with this surface concentric cylindrical and thus closes the valve exit.
  • the piston includes a peripheral shoulder located at a intermediate level between the upper end and the lower end of the cuff, said shoulder being in abutment against a fixed element of the pump when the rod is in the rest position so that the cuff is not in compression at rest.
  • the cuff of the piston includes an outer sealing bead device adapted to slide tightly against an internal cylindrical wall from the rest position until near the depressed position where the cord leaves said wall to allow ventilation only at the end of the race.
  • the pump comprises a pump body 1 of form substantially cylindrical having at its end lower a fixing sleeve 14 for a dip tube (not shown).
  • the pump body also defines just above the fixing sleeve 14 a seat of inlet valve 13 in the form of an internal wall tapered.
  • a valve member we can by example use a steel ball 5 as shown in Figure 1, but other plastic valve members for example can also be used for this purpose.
  • Above the valve seat 13, the pump body widens to form a cylindrical section 12. In reality, this cylindrical section 12 is not perfectly circular, but polygonal so that internal walls of this section 12 are formed by flat sections. This guarantees good spring guidance biconical 6 which is housed therein and which often tends to deform when energized.
  • the skirts thus serve as guide walls to maintain the spring 6 perfectly straight.
  • the shape biconical of the lower end of the spring allows confine the ball 5 of the valve in a limited space.
  • the pump body forms a shoulder 125 outward to define a other part of cylindrical body 11.
  • This part of cylindrical body 11 defines an internal surface serving waterproof sliding wall as will be seen below.
  • This cylindrical body part is also pierced a vent hole 15 which is used to vent the bottle as will be seen below.
  • the cylindrical body part ends with a thickened upper end 10 which defines the upper opening of the pump body and a overall support reference.
  • the pump further includes an actuating rod designated as a whole by the reference numeral 2 in Figure 1.
  • This actuating rod 2 comprises two constituent elements interconnected, namely a rod hollow 20 and a peripheral compression member 24.
  • the hollow rod 20 and the peripheral compression member 24 are fixedly attached to each other but we can also imagine embodiments in which these two elements form a single piece.
  • the rod hollow 20 defines an internal delivery duct 201 which extends across the entire length of the rod.
  • the hollow rod 20 includes an upper part 21 intended to protrude from the pump body 1. At its upper end, the rod part 21 is capped a dispensing head 8 provided with a nozzle 81. At its lower end, the upper rod portion 21 is connected to a middle rod portion 22 of diameter superior.
  • the stem part middle 22 is connected to a rod portion 23 of diameter inferior.
  • the passage of the middle portion 22 of diameter greater than the lower part 23 of smaller diameter is produced by a frustoconical surface 223 whose function will be given below.
  • the peripheral compression member 24 connected to the hollow rod 20 is formed with a central pin 27 inserted into the internal conduit 201 of the hollow rod 20 over a height corresponding approximately to the middle part 22 and the lower part 23.
  • the central pin is held inside the conduit 220 via of radial peripheral ribs 271 which are engaged with the internal wall of the duct 201. Between the ribs 271, a plurality of passages is defined which makes communicate the internal duct 201 with the end open from the lower part 23 of the rod 20.
  • the central pin 27 forms a disc 25 whose outer diameter and substantially higher than that of the lower part 23 of the rod hollow 20.
  • the disc 25 has an upper surface in which grooves 28 are formed which are formed in the extension of the fluid passages formed between the ribs 271 of the central spindle 27, as can see it in figure 2. So a communication is established between the lower end of the hollow rod 20 and its upper end. It should be noted that the rod hollow 20 communicates with the pump chamber not by transverse conduits, as is the case in art anterior but through an annular opening located in a horizontal plane, which has an advantage described below. According to the invention, the disc 25 is provided with a cylindrical peripheral sleeve 26 which projects towards the top from the top surface of the disc 25.
  • this cylindrical peripheral sleeve 26 defines a cylindrical surface 261 which is concentric to the lower part 23 of the hollow rod 20 on a certain height, as can be seen in Figure 2.
  • the peripheral sleeve 26 therefore defines with the part lower part of the rod part 23 a housing of annular reception having a cross section rectangular. This reception accommodation communicates with the internal conduit 201 of the hollow rod 20 by through grooves 28 and formed passages between the ribs 271.
  • a spring is provided reminder 6 which is supported with its lower end against the shoulder formed by the pump body 1 just above the valve seat 13 and with its end upper against the underside of disc 25.
  • grooves 16 are formed in the pump body at the level where the spring 6 takes support, as can be seen in Figure 1. So there always has an open passage for the fluid, even when product suction from the tank.
  • the underside of disc 25 is formed with a notch 250 thus avoiding any trapping of air in the cavity of reception formed by the disc 25 to accommodate the end upper of the biconical spring 6.
  • a ferrule 4 inserted in the pump body 1 and having an upper flange 41 which extends radially inward to define a central opening through which the part passes upper 21 of the hollow rod 20.
  • the ferrule 4 is forcibly engaged in the pump body 1 and is there maintained for example by a harpoon effect.
  • the ferrule 4 also defines an inner wall 43 perfectly cylindrical which serves as a sealed sliding surface as will be seen below.
  • a free piston designated by the reference numeral 3 is slidably mounted on the part lower 23 of the hollow rod 20.
  • This piston 3 can be move in a limited way on this lower part 23 of the hollow rod 20 to fulfill a function of organ of outlet valve.
  • Piston 3 is formed with a cuff substantially cylindrical 30 which surrounds the part lower 23 of the hollow rod 20.
  • This cuff 30 has an upper end 33 and an end lower 32.
  • the piston 3 forms a lip outer seal 31 adapted to slide so tight against the internal wall of the pump body 1 in its upper part 11. More particularly, the piston 31 slides in this internal wall of the pump body 11 in a part which is located between shoulder 125 and the vent hole 15.
  • the frictional forces generated between the sealing lip 31 and the inner wall of the body pump 11 are greater than those generated between the cuff and the lower part 23 of the rod actuation.
  • the internal diameter of the cuff is greater than the outer diameter of the rod actuation so there is virtually no friction at this level. This ensures that the forces of friction are much higher than the level of the sealing lip.
  • This force differential of friction acts as a spring, in that it allows return the cuff to its rest position when return of the actuating rod after distribution of the dose of product.
  • the space between the cuff and rod was deliberately depicted from exaggerated way: of course, it is essential that the cuff slides fluid tight on the upper so that there is no leakage at this level.
  • the sealing lip 31 is connected to the cuff 30 by forming a shoulder 34.
  • the end lower 32 of cuff 30 is engaged in the receiving housing formed by the lower end of the lower part 23 of the rod 20 and the sleeve peripheral 26 of the peripheral compression member 24.
  • the lower end of the cuff has a substantially equal or slightly smaller external diameter to the internal diameter of the wall 261 of the sleeve 26, while advantageously guaranteeing a cylindrical seal on the contact height.
  • the compression point ensuring a permanent seal is located in 262 at level where the lower end 32 flares to form a frustoconical surface 263.
  • the cuff 30 extends with its upper end 33 to near the surface frustoconical 223 which forms the transition between the part middle 22 and bottom 23 of the hollow stem 20. Consequently, as soon as the piston moves towards the high due to increased pressure at inside the pump chamber, its end upper 23 will engage on this frustoconical surface 223.
  • the upper end 33 is formed with an internal cylindrical recess 331 which allows the cuff to engage on the surface tapered 223 only after a certain stroke of the cuff.
  • the upper end edge 332 of this offset 331 forms a tight stop edge against the frustoconical surface 223 at the point referenced 224.
  • the piston For allow opening of the passage at the end lower of actuation rod 2, the piston must made an upward race by engaging on the tapered surface 223 which is greater than the height of the cylindrical sealing contact formed by the end lower 32 of cuff 30 with inner surface peripheral 261 of the cuff 26.
  • the distance from edge 332 to point 224 is slightly less than the height of the cylindrical contact at the level from the lower end 32. In this way it is created precompression due to resistance to deformation of the edge 332 in contact with the surface tapered 223 at point 224.
  • the tapered surface 224 therefore serves as a stop surface against which abuts the upper end edge 332 of the cuff for create a tight circular contact. Slight deformation of this edge also makes it possible to create a precompression.
  • the step 331 is advantageous in that which prevents extensive contact between the cuff and the rod which generates friction forces considerable risk of blocking the cuff on the piston, as in the aforementioned art document prior. It is therefore important that the forces of friction are also minimized at this level.
  • the cuff 30 in the rest position is also subject to no strain constraint which would be exerted in the axial direction of the pump. Indeed, in the rest position, the cuff bears with the shoulder 34 against the edge lower inner 42 of the ferrule 4. In this position, the upper end 33 of the cuff is not not engaged on the tapered surface 223 and the end lower 32 of the cuff is fully engaged in the receiving housing formed by the rod 23 and the sleeve 26 of the peripheral compression member 24. By therefore, in the rest position, the return spring 6 ensures perfect sealing of the top valve favoring the jamming of the lower part 32 of the cuff 30 and the abutment of the shoulder 34 against the ferrule 4.
  • the cuff 30 is provided near its end upper 333 of a peripheral sealing bead outside 330 which slides tightly against the inner wall 43 of the shell 4, as can be seen on Figure 2.
  • This outer peripheral sealing bead 330 isolates the interior of the container from the atmosphere which would be attached to the pump. Indeed, as long as the cord seal 330 is in leaktight sliding contact against the inner wall 43 of the shell 4, there is no communication between inside and outside the container on which the pump would be mounted, through the vent hole 15. By cons, as soon as the cord seal 330 leaves this internal surface 43 of the ferrule 4, there is no more sealing and the outside air can enter the container through the vent hole 15.
  • a groove 150 is formed in the pump body that connects the vent hole 15 to the section cylindrical 12 to prevent the vent hole from being blocked closed by the internal wall of the tank neck.
  • the sealing bead 330 does not leave the internal wall 43 of the shell 4 until the end of stroke, i.e. only when the lip seal 31 of piston 30 comes close to the shoulder 125 formed by the pump body 1.
  • upgrading the open air is only at the end of the race so that the container is isolated from the outside during the major part of the piston stroke.
  • the wall internal 43 of the shell 4 can be provided with one or several grooves 430 which extend to the end of the ferrule. Consequently, the venting will be carried out as soon as the cord 330 arrives at the height of the grooves 430. It is thus possible to very precisely adjust the time of venting by adjusting the height of the bloodletting. The higher the grooves from the lower end of the ferrule and the higher the the open air will take place early. In addition, it is possible to adjust the airflow rate by adjusting the total cross section of the grooves. Thanks to these tapped, it is possible to precisely adjust the timing and flow rate of venting. Of course, we can easily consider instead of the a peripheral step which leads to a cylindrical section of larger diameter. The goal is to create a recess forming an air passage between the cord 330 and the inner wall 43 of the shell 4 to one determined place and determined flow.
  • the actuating rod is pushed in 2 in the pump body 1.
  • the shoulder 34 of the piston 3 leaves its abutment contact with the lower edge 42 of the ferrule 4, since the latter is an element pump fixed.
  • Lowering the actuating rod 2 in the pump chamber causes a decrease in volume of the latter, which urges the piston 3 towards the top sliding on the lower part 23 of the rod hollow 20.
  • the piston 3 rises on the actuating rod. Dynamically, strength generated by the pressure in the pump chamber is greater than the friction forces at the lip piston.
  • the rise of the piston on the rod leads the engagement of the upper end 33 of the cuff 30 on the frustoconical surface 223 and the disengagement of the lower end 32 of the sleeve 30 of the housing reception defined by the sleeve 26.
  • the displacement of the piston 3 upwards on rod 23 continues until that the lower end 32 of the cuff 30 is completely disengaged from the receiving housing, so that there is no longer any sealing contact between the cuff and sleeve 26.
  • the passage is open between the interior of the pump chamber and the duct internal 201 of the actuating rod through the grooves 28 and the passages defined between the ribs 271.
  • the pressurized fluid in the pump chamber can therefore escape through the actuating rod and reach the nozzle 81 where it is sprayed fine droplets.
  • the sealing lip 31 of the piston is in abutment against the shoulder 125 formed by the pump body 1.
  • the metering chamber is at this time completely evacuated and there is no more pressure to the interior.
  • the piston 3 is then no longer stressed, but there remains a short time in place due to the forces of friction at the pump body.
  • the rod 2 rises under the action of spring 6 as the user releases the pressure on the head 8.
  • the displacement of the rod relative to the still fixed piston a to disengage the edge 332 of the piston from the tapered surface 223.
  • the cord outer seal 330 of the sleeve 30, during the depression of the rod 2 is in sliding contact watertight with the inner wall 43 of the shell 4. This only when the sealing lip 31 of the piston 3 abuts against the shoulder 125 of the pump body 1 that the sealing bead leaves the internal surface 43 of the ferrule, which allows outside air to enter in the container on which the pump would be mounted passing between the ferrule and the actuating rod then to through the vent hole 15.

Landscapes

  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP98401668A 1997-07-04 1998-07-03 Handbetätigte Pumpe mit einem mit einer Manchette versehenen freien Kolben Expired - Lifetime EP0888824B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/346,821 US6209759B1 (en) 1997-07-04 1999-07-02 Hand-operated pump with a free floating sleeve piston
US09/760,038 US6471097B2 (en) 1997-07-04 2001-01-12 Hand-operated pump with a free floating sleeve piston

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9708526A FR2765638B1 (fr) 1997-07-04 1997-07-04 Pompe manuelle a piston libre a manchette
FR9708526 1997-07-04

Publications (2)

Publication Number Publication Date
EP0888824A1 true EP0888824A1 (de) 1999-01-07
EP0888824B1 EP0888824B1 (de) 2003-02-19

Family

ID=9508891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401668A Expired - Lifetime EP0888824B1 (de) 1997-07-04 1998-07-03 Handbetätigte Pumpe mit einem mit einer Manchette versehenen freien Kolben

Country Status (5)

Country Link
EP (1) EP0888824B1 (de)
DE (1) DE69811431T2 (de)
ES (1) ES2192751T3 (de)
FR (1) FR2765638B1 (de)
TW (1) TW393428B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000056465A1 (fr) * 1999-03-22 2000-09-28 Rexam Sofab Pompe a reaspiration
US6209759B1 (en) 1997-07-04 2001-04-03 Valois S.A. Hand-operated pump with a free floating sleeve piston
FR2854822A1 (fr) * 2003-05-16 2004-11-19 Rexam Dispensing Sys Distributeur de produit liquide ou en gel
GB2481198A (en) * 2010-06-14 2011-12-21 Derxin Shanghai Cosmetics Co Ltd A sprayhead assembly having axial grooves on a piston member and a hollow spiral valve
CN105600112A (zh) * 2015-10-28 2016-05-25 上虞市神龙铝塑制品有限公司 多密封乳液泵
CN113825907A (zh) * 2019-05-14 2021-12-21 阿普塔尔法国简易股份公司 高压预压缩泵的组装方法
WO2024188043A1 (zh) * 2023-03-15 2024-09-19 唯美国际有限公司 容器及其泵组件

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1544683A (fr) 1967-01-17 1968-11-08 Erich Pfeiffer K G Ing Pompe à piston coulissant, à simple effet, actionnée à la main, incorporée dans un récipient
US4065038A (en) * 1976-04-07 1977-12-27 Realex Corporation Pump sprayer
FR2399286A1 (fr) 1977-08-03 1979-03-02 Ramis Michel Vaporisateur simple
GB2091818A (en) * 1981-01-07 1982-08-04 Sar Spa A manually operated pump for pressure delivery of liquid and/or thick substances contained in a container on which the pump is mounted
FR2563287A3 (fr) 1984-04-19 1985-10-25 Sar Spa Pompe a main de distribution sous pression de liquides pulverises
FR2576365A1 (fr) * 1985-01-23 1986-07-25 Sofab Pompe de vaporisateur a main
EP0453357A1 (de) 1990-04-19 1991-10-23 Frédéric Platel Sprüh- und Dosiervorrichtung
WO1995029016A1 (fr) * 1994-04-27 1995-11-02 Valois S.A. Pompe a precompression perfectionnee
EP0757004A1 (de) * 1995-01-27 1997-02-05 Yoshino Kogyosho Co., Ltd. Zerstäuberpumpe für flüssigkeiten

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1544683A (fr) 1967-01-17 1968-11-08 Erich Pfeiffer K G Ing Pompe à piston coulissant, à simple effet, actionnée à la main, incorporée dans un récipient
US4065038A (en) * 1976-04-07 1977-12-27 Realex Corporation Pump sprayer
FR2399286A1 (fr) 1977-08-03 1979-03-02 Ramis Michel Vaporisateur simple
GB2091818A (en) * 1981-01-07 1982-08-04 Sar Spa A manually operated pump for pressure delivery of liquid and/or thick substances contained in a container on which the pump is mounted
FR2563287A3 (fr) 1984-04-19 1985-10-25 Sar Spa Pompe a main de distribution sous pression de liquides pulverises
FR2576365A1 (fr) * 1985-01-23 1986-07-25 Sofab Pompe de vaporisateur a main
EP0453357A1 (de) 1990-04-19 1991-10-23 Frédéric Platel Sprüh- und Dosiervorrichtung
WO1995029016A1 (fr) * 1994-04-27 1995-11-02 Valois S.A. Pompe a precompression perfectionnee
EP0757004A1 (de) * 1995-01-27 1997-02-05 Yoshino Kogyosho Co., Ltd. Zerstäuberpumpe für flüssigkeiten

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209759B1 (en) 1997-07-04 2001-04-03 Valois S.A. Hand-operated pump with a free floating sleeve piston
US6471097B2 (en) 1997-07-04 2002-10-29 Valois S.A. Hand-operated pump with a free floating sleeve piston
WO2000056465A1 (fr) * 1999-03-22 2000-09-28 Rexam Sofab Pompe a reaspiration
FR2791400A1 (fr) * 1999-03-22 2000-09-29 Sofab Pompe a reaspiration
CN1128684C (zh) * 1999-03-22 2003-11-26 雷克斯姆Sofab股份公司 回吸泵
WO2004101168A1 (fr) * 2003-05-16 2004-11-25 Rexam Dispensing Systems Distributeur de produit liquide ou en gel
FR2854822A1 (fr) * 2003-05-16 2004-11-19 Rexam Dispensing Sys Distributeur de produit liquide ou en gel
CN100441312C (zh) * 2003-05-16 2008-12-10 雷克斯姆分配系统股份公司 用于液体或者胶体产品的分配器
US7520409B2 (en) 2003-05-16 2009-04-21 Rexam Dispensing Systems S.A.S. Distributor for a liquid or gel product
GB2481198A (en) * 2010-06-14 2011-12-21 Derxin Shanghai Cosmetics Co Ltd A sprayhead assembly having axial grooves on a piston member and a hollow spiral valve
CN105600112A (zh) * 2015-10-28 2016-05-25 上虞市神龙铝塑制品有限公司 多密封乳液泵
CN113825907A (zh) * 2019-05-14 2021-12-21 阿普塔尔法国简易股份公司 高压预压缩泵的组装方法
CN113825907B (zh) * 2019-05-14 2023-06-30 阿普塔尔法国简易股份公司 高压预压缩泵的组装方法
WO2024188043A1 (zh) * 2023-03-15 2024-09-19 唯美国际有限公司 容器及其泵组件

Also Published As

Publication number Publication date
ES2192751T3 (es) 2003-10-16
DE69811431D1 (de) 2003-03-27
DE69811431T2 (de) 2004-01-15
EP0888824B1 (de) 2003-02-19
FR2765638A1 (fr) 1999-01-08
TW393428B (en) 2000-06-11
FR2765638B1 (fr) 2004-11-26

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