EP0345132A1 - Vordruck Dosierpumpe mit verbessertem Ansaugverhalten - Google Patents

Vordruck Dosierpumpe mit verbessertem Ansaugverhalten Download PDF

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Publication number
EP0345132A1
EP0345132A1 EP89401449A EP89401449A EP0345132A1 EP 0345132 A1 EP0345132 A1 EP 0345132A1 EP 89401449 A EP89401449 A EP 89401449A EP 89401449 A EP89401449 A EP 89401449A EP 0345132 A1 EP0345132 A1 EP 0345132A1
Authority
EP
European Patent Office
Prior art keywords
improvement according
pump
piston
channel
cylinder
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
EP89401449A
Other languages
English (en)
French (fr)
Other versions
EP0345132B1 (de
Inventor
Michel Brunet
Patrick Di Giovanni
Claude Jouillat
Jean-Pierre Lina
Hervé Pennaneac'h
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.)
Societe Technique de Pulverisation STEP
Original Assignee
Societe Technique de Pulverisation STEP
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
Priority claimed from FR8807337A external-priority patent/FR2632358B1/fr
Priority claimed from FR8816722A external-priority patent/FR2640695B1/fr
Priority claimed from FR8906817A external-priority patent/FR2647509B1/fr
Application filed by Societe Technique de Pulverisation STEP filed Critical Societe Technique de Pulverisation STEP
Priority to AT89401449T priority Critical patent/ATE94780T1/de
Publication of EP0345132A1 publication Critical patent/EP0345132A1/de
Application granted granted Critical
Publication of EP0345132B1 publication Critical patent/EP0345132B1/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
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
    • 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 present invention relates to an improvement of a precompression dosing pump which improves priming.
  • the precompression dosing pumps have many advantages.
  • the emission of the fluid product essentially results from manual actuation.
  • the latter also does not need to be particularly reinforced to contain a product under high pressure.
  • the metering function is also very useful in the cosmetic or pharmaceutical industry where the quantity of product delivered each time the pump is actuated must be sufficiently precise.
  • the five parts forming the pump of the prior art are: a tower 1 having a base 11 to adapt to the neck of the reservoir, or container, of product and to be tightly secured thereto by complementary means (also not shown), - a pump body 2, the top 21 of which snaps into the previous tower 1 and the bottom 22 of which communicates with the interior of the tank either directly (as shown), or by means of a dip tube fitted on a socket integral with body 2 (not shown).
  • a sleeve 24 internally extends the bottom 22 of the pump body.
  • the annular space between this sleeve 24 and the pump body 2 corresponds to most of the pump chamber 23 of the dosing pump, a first piston 3 which can slide in leaktight manner within the pump body 2 from a high position shown in FIG. 1 (the piston 3 being in contact with the inner ring 12 of the spinner 1) to a low position shown in Figure 2 and defined as we will see later.
  • the piston 3 also extends upwards and an actuating rod 31. This is pierced with a central channel 33 for the emission of the product.
  • the section of the latter is not constant. In particular, it presents, roughly halfway up the channel 33, a sudden constriction 32, - a differential piston 4.
  • the differential piston 4 is extended by a skirt 42 adapted to be fitted around the sleeve 24 secured to the pump body 2. While the outer surface of the skirt 42 is used for guiding inside the pump body 2, its inner surface has a sealing lip 43 below. This makes it possible to interrupt the communication between the reservoir and the pump chamber 23 as soon as there is fitting of the parts.
  • the inner surface of the skirt 42 is further provided with a recess 45 serving as a stop against the sleeve 24 and thus determining the low position of the differential piston 4 (cf. FIG. 2).
  • the differential piston 4 Between its needle 41 and its skirt 42, the differential piston 4 finally has a step 44 directed upwards which conditions its hydraulic operating mode, - a return spring 5 disposed between the differential piston 4 and the bottom 22 of the pump body 2.
  • the spring 5 ensures the closing of the emission channel 33 by again pressing the needle 41 of the differential piston 4 against the throttle 32 of the rod 31. By releasing moreover the manual effort, the spring 5 causes the pistons 3 and 4 to rise. The pump chamber 23 sees its volume increase again. There is therefore a depression. As soon as the skirt 42 of the differential piston 4 releases the sleeve 24, this causes the product to be sucked in from the reservoir into the chamber 23. The product which it now contains is none other than the next dose which will be emitted during a subsequent actuation of the pump.
  • This priming method is particularly suitable for liquid products which do not fear contact with air. But for pasty products, the discharge of air into the tank only results in the formation of a bubble which generally adheres to the pump body 2. Thus, when the pistons go up, the air in the bubble is preferably at again sucked into the pump chamber 23 which therefore hardly ever starts. As for products which must not remain in the presence of air, it is clear that a backflow inside the container is contraindicated. This is how the present invention aims to arrange the precompression dosing pump of the prior art described above in order to improve priming without introducing the air initially contained in the pump chamber. inside the reservoir of product to be emitted.
  • a precompression dosing pump used for the emission of a liquid product or pastes
  • said pump comprising - a pump body having a bottom communicating with a reservoir of said product and a top open to the atmosphere, - a hollow piston to isolate and pressurize a pump chamber within said pump body, said hollow piston extending through said open top of said pump body into an actuating rod pierced right through a channel outlet opening at a free end of said rod, - a differential piston housed in said pump chamber to interrupt communication with said reservoir and / or said outlet channel, a return spring for recalling said hollow and differential pistons, characterized in that a priming assembly is further provided comprising elastic means and at least one cylindrical part which collaborates with said differential piston and said actuating rod so as to constitute, within said outlet channel, a first outlet valve reserved for the emission of said product as well as a second outlet valve allowing the evacuation into the atmosphere of the air initially contained in said pump chamber, said first valve being closed when
  • FIG. 4 to 6 shows compared to the prior art an enlargement of the channel 33 inside the rod 31 downstream of the throttle 32. The latter is then reduced to an annular lug to which reference 32 will now be reserved.
  • a ring 10 is housed in the enlarged section of the channel 33 as well as a cylindrical spring 20, both of the same axis as the channel 33 and placed with a radial clearance one behind the other. On one side, the ring 10 abuts at the level of the outer ring 103 of its base on the lug 32.
  • the spring 20 is supported on a shoulder 34 of the rod 31 corresponding to the passage of the widening of the channel 33 to its traditional size at the outlet of the rod.
  • the stiffness of the spring 20 must moreover be significant so that everything takes place, in the use phase of the pump, as in the previous state (cf. FIG. 3). If necessary, it is a precompressed spring. In fact, when the actuating rod 31 is pressed, it now transmits its movement to the piston 4 via the contact between the needle 41 and the internal crown 104 of the base of the ring 10 (cf. FIG. 6) . Then, the precompression of the product resulting in the withdrawal of the needle 41, it is this contact which is destroyed while the product fuses outside, passing between the conical top of needle 41 and ring 10.
  • the base of the ring 10 is cut into a truncated cone. This favors in particular the contact 103 of its outer ring against a lug 32 having the simple form of a boss. This also results in a self-centering of the ring 10 on the conical top of the needle 41 which guarantees the contact 104 of its inner crown even if the parts have played a little. It is so advantageous that the two ends of the ring are cut identically. In this way, the parts are assembled without having to pay attention to the direction of introduction of the ring 10 into the rod 31.
  • the outer surface of the end piece 30 preferably comprises two stages of annular spurs. These can either snap into two grooves in the wall of the channel 33 (not shown), or anchor directly in this wall as long as the material of the main part lends itself to it. In the latter case, the end piece 30 advantageously has an external flange 37. This is then used to adjust the final degree of insertion of the nozzle 30 into the channel 33.
  • the mold comprises for example two dies.
  • a first matrix 6 comprises a central finger 61 conforming to the shape of the transmission channel 33 from the free end of the main part forming the rod 31 to the lug 32.
  • a second matrix 7 comprises a boss 71 conforming to the part piston 3 proper and also going up to lug 32.
  • the end piece 30 can be made in one piece with the ring 10.
  • the elasticity necessary for push the latter against the lug 32 is then advantageously provided by molded tabs between the base of the nozzle 30 and the upper surface of the ring 10. These are, as the case may be, parallel to the axis of revolution of the assembly and bend towards the surface of the channel 33 or else arranged in a spiral and approach each other. It goes without saying that this second embodiment is very convenient in terms of mounting the pump since three elements can thus be assembled in a single operation.
  • the end piece 30 is preferably made of a fairly rigid plastic material. It is indeed the part of the first hollow piston 3 which is directly actuated. Often, a pusher, itself rigid, covers it in order to facilitate this manipulation by the user. The transmission of the force between the pusher and the end piece 30 is thus made more secure.
  • the main part of the first hollow piston 3 has sealing lips 35 and 36 allowing it to circulate in leaktight fashion along the pump body 2. It is therefore preferable to use a relatively flexible plastic material to constitute it.
  • a rigid material is found in contact with a flexible material and it is not said that the corresponding connection is sufficiently solid and the remainder in spite of the aging of the dosing pump to support the thrust transmitted to the tip 30 by the elastic means 20. In the long run, a separation of the tip is in fact to be feared, fatigue or the creep of the materials modifying the securing conditions whether they consist of a force fit or a snap-on.
  • FIGS 10 and 11 show that the first piston 3 is formed in this version of two hollow cylinders 300 and 310 engaged one in the other.
  • the inner cylinder 300 has a sealing lip 36 oriented towards the bottom 22 of the pump body in order to slide in leaktight manner within the pump body 2. It extends upwards into a rod pierced with a central channel 33 for the product issue. About halfway up the channel 33 projects an annular lug 32 advantageously having the shape of a sealing lip oriented towards the outlet of the channel 33.
  • the external cylinder 310 comprises, in this embodiment, also a sealing lip 35 oriented towards the upper end 21 of the pump body in order to slide in leaktight manner within the pump body 2. In a more characteristic manner the present invention, it extends upward into a rod. The latter surrounds the rod of the inner cylinder 300 and thins above it into a hollow end portion 37 extending from the channel 33.
  • a free space 320 is provided between the end of the rod of the inner cylinder 300 and the thinning of the outer cylinder 310.
  • a crown 34 protrudes opposite the channel 33 at the base of the terminal part 37 of the rod of the outer cylinder 310.
  • This ring 34 has different radial channels 311 connecting the free space 320 with the channel 33.
  • annular notch 312 is formed at the outer root of the rod of the inner cylinder 300.
  • annular boss is provided at the inner root of the rod of the outer cylinder 310.
  • a priming assembly 100 is presented. It could just as easily be used in the two variants described above in place of the ring 10 and elastic means 20.
  • This assembly 100 is in fact made up of two identical rings 10 and 10 ′ connected together by a partition 20 cylindrical with the same axis as the rings. In the absence of external stresses, the latter corresponds for example to a thin hollow cylinder of the same internal diameter as the rings 10 and 10 ′. Its small thickness also allows its elastic bending so that it can take the shape of a barrel shown in the drawings. It is however less flexible than spring 5.
  • the priming assembly 100 is housed within the channel 33. If a radial clearance is maintained, the assembly 100 is therein compressed axially between the end portion 37 of the rod of the outer cylinder 310 and the annular lug 32 which both provide support.
  • the upper ring 10 ′ rests on the entire surface of its section against the crown 34 of the terminal part 37.
  • the lower ring 10 is applied, for its part, against the lug 32 in a very localized zone 103 which, the elasticity of the parts helping, guarantees a tight contact.
  • the partition 20 When the user stops pressing the first piston 3, the partition 20 immediately seeks to return to its initial shape. It follows the very rapid restoration of contact 103 between the ring 10 and the lug 32 so that the pump chamber 23 is found completely isolated from the outside. As it is also isolated from the reservoir thanks to the sealing lips 43 of the skirt 42 circulating on the sleeve 24, the increase in its volume as the return spring 5 relaxes, causes the development of 'a depression within it. In the embodiment of Figure 10, the depression can reach a substantial value thanks to the presence in particular of the sealing lip 35 of the cylinder 310 outside of the piston rod 3 which prevents any infiltration of air.
  • a suction force urges this lip 35 and effectively opposes the separation of the two cylinders 300 and 310 forming the first piston 3 that the assembly 100 would otherwise tend to cause. This strengthens their connection at the snap 312 and, in some cases, can even make the latter useless.
  • a new actuation of the first piston 3 results this time in the compression of the product trapped in the pump chamber 23.
  • the return spring 5 more flexible, is always stressed in the first place.
  • the volume of the pump chamber 23 drops.
  • the sealing lip 43 of the skirt 42 circulating on the sleeve 24 as well as the sealing lip 36 of the cylinder 300 inside the first piston 3 also guarantee the insulation of the chamber 23 so that the pressure of the product trapped in her breast is growing. This then causes the differential piston 4 to be withdrawn by through the pressure exerted on the step 44 and opposing the return force of the spring 5.
  • the ring 10 therefore remains all the better maintained at 103 against the lug 32 than the cylinder 310 outside tends to deform in a barrel and compress the priming assembly 100. It is rather the turn of contact 104 with the needle 41 to break.
  • the pressurized product then fuses between the needle 41 and the ring 10 to gain the exterior via the central holes of the ring 10, of the partition 20, of the ring 10 ′ and finally of the terminal part 37 of the cylinder 310 outside.
  • FIG. 12 very schematically shows how its internal cylinder 300 could be produced. It would suffice to use a two-part mold. A first part 6 would have in hollow the imprint of the outer surface of the cylinder 300 and, projecting in the center of the latter, a first finger 61 conforming to the internal shape of the channel 33 downstream of the lug 32. A second part 7 of the mold would, in turn, have a second finger 71 matching the interior shape of the channel 33 upstream of the lug 32. By pulling part 6 to the right of Figure 12 and part 7 to the left, the cylinder 300 find naked without the pin 32 does not suffer from friction.
  • the priming assembly 100 is engaged in the latter downstream of the lug.
  • the assembly 100 is advantageously reversible. This is the case of the assembly 100 which has just been described and which comprises two identical rings 10 and 10 'while only the ring 10 in contact with the lug is useful for the proper functioning of the pump. Then, the assembly is completed by engaging the outer cylinder 310 on the inner cylinder 300 and causing them to snap, if necessary.
  • the third variant described hitherto with reference to FIG. 10 involves two sealing lips carried by the first hollow piston 3.
  • each of them is active in a different phase of the pump's operation: the lip 36 of the inner cylinder 300 participating in the isolation of the pump chamber 23 during the compression of its contents and the lip 35 of the outer cylinder 310 guaranteeing the development of a significant depression in chamber 23.
  • the metering pump of the prior art is sometimes arranged in such a way that, during the raising of the pistons, its chamber 23 is the place of a depression of lesser importance.
  • French patent 2,558,214 filed in 1984 by the company VALOIS provides for example one or more bores 48 in the differential piston 4.
  • the sealing lip 35 of the outer cylinder 310 is no longer useful. As shown in FIG. 11, it is then preferable to eliminate it in order to reduce the friction of the first hollow piston 3 on the pump body 2 and thus authorize the use of a more flexible return spring 5. Instead, a simple annular rim 35 can be provided. If its diameter is less than that of the interior of the pump body 2, the flange 35 must remain suitable for contact with the tower 1 in the pump rest position. This contact is indeed useful at the stop of the first hollow piston 3 determining its high position. It may also be necessary to isolate the tank from the outside when an air vent 13 is otherwise provided. It is understood, however, that the molding of the rim 35 with the external cylinder 310 does not present any particular difficulty.
  • the constitution of the first hollow piston 3 in two parts even allows easy adaptation to this second type of metering pump since the inner cylinder 300 and the priming assembly 100 remain, for their part, unchanged. Their respective molds therefore apply to all of the dosing pumps mentioned here. Note, however, that in this embodiment, the latching 312 or any other connecting means is essential in order to keep the two cylinders 300 and 310 integral, especially during the raising of the pistons to which no suction is now no longer opposed .
  • the needle 41 is roughly replaced by a cylindrical piece 10 of the same axis as that of the pump and which fits inside the piston 4 reduced in this case to its skirt 42 and its tier 44.
  • the base of the cylindrical part 10 is full. It is provided on the outside with a rim 101 which allows the spring 5 to press it against the piston 4.
  • the part 10 is made integral with the piston in order to reproduce the operating mode of the anterior pumps.
  • the upper part of the part 10 has an internal channel 105 opening directly into the channel 33 of the rod 31 of the piston 3.
  • This internal channel 105 communicates with another channel 102, horizontal, located approximately halfway up the part cylindrical 10.
  • this horizontal channel 102 is isolated by means of an upper skirt 46 specially provided in the upper part of the piston 4.
  • a cylindrical spring 20 bears against this upper skirt 46. It surrounds the head of the cylindrical part 10 so as to rest against the constriction 32 of the channel 33 inside the rod 31.
  • the spring 20 must be hard so that at least at the start of the stroke of the actuating rod 31, the descent of the latter does indeed cause identical movement of the piston 4. It can for example be pr ecompressed.
  • the depression of the rod 31 drives the piston 4 towards the inside of the pump thanks to the stop offered by the throttle 32.
  • the product put under pressure in this way ensures the withdrawal of the piston 4 as well as the cylindrical piece 10 which is then gripped by the upper skirt 46 having, for this purpose, a hook shape.
  • the insertion of the actuating rod 31 can be carried out further.
  • the air from the pump chamber 23 does not hinder its descent until the piston 4 comes into abutment on the sleeve 24.
  • the user then succeeds in compressing the spring 20. This results in a relative movement of the cylindrical part 10 relative to the piston 4 and the release of the upper skirt 46 (cf. FIG. 14).
  • the compressed air can then flow through the channels 102, 105, then 33 and be evacuated outside the tank, which is the end sought after.
  • FIGS. 15 and 16 The fifth variant of the improvement illustrated by FIGS. 15 and 16 is very close to the previous one.
  • the cylindrical part 10 is almost entirely reproduced with the rim 101, the channels 102 and 105 ...
  • the difference lies only in the elastic means which allow, at the end of the first depression of the actuating rod 31, to cause the disengagement of the upper skirt 46 of the piston 4.
  • the upper part of the cylindrical part 10 comprises fins with a lower bevel.
  • the upper skirt 46 can then be deformed when its hook-shaped edge rises on the beveling under the effect of external compression. The air in this case flows between the fins to the channel 102.
EP89401449A 1988-06-02 1989-05-26 Vordruck Dosierpumpe mit verbessertem Ansaugverhalten Expired - Lifetime EP0345132B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89401449T ATE94780T1 (de) 1988-06-02 1989-05-26 Vordruck dosierpumpe mit verbessertem ansaugverhalten.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR8807337 1988-06-02
FR8807337A FR2632358B1 (fr) 1988-06-02 1988-06-02 Perfectionnement de pompes-doseuses a precompression ameliorant l'amorcage
FR8816722 1988-12-19
FR8816722A FR2640695B1 (fr) 1988-12-19 1988-12-19 Pompe doseuse a precompression et a amorcage ameliore avec tige-piston adaptee aux conditions de moulage et de fonctionnement
FR8906817A FR2647509B1 (fr) 1989-05-24 1989-05-24 Tige-piston pour pompe-doseuse a precompression et a amorcage ameliore et son procede de moulage
FR8906817 1989-05-24

Publications (2)

Publication Number Publication Date
EP0345132A1 true EP0345132A1 (de) 1989-12-06
EP0345132B1 EP0345132B1 (de) 1993-09-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401449A Expired - Lifetime EP0345132B1 (de) 1988-06-02 1989-05-26 Vordruck Dosierpumpe mit verbessertem Ansaugverhalten

Country Status (4)

Country Link
US (1) US4930999A (de)
EP (1) EP0345132B1 (de)
JP (1) JPH02127270A (de)
DE (1) DE68909310T2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656901A1 (fr) * 1990-01-08 1991-07-12 Step Soc Tech Pulverisation Perfectionnement d'une pompe-doseuse a precompression pour en ameliorer l'amorcage et garantir sa simplicite d'assemblage.
FR2674747A1 (fr) * 1991-04-05 1992-10-09 Step Soc Tech Pulverisation Dispositif distributeur de gouttes de petit volume, notamment pour soins ophtalmologiques.
US5443185A (en) * 1990-11-09 1995-08-22 Ing. Erich Pfeiffer Gmbh & Co. K.G. Dispenser for media
EP0882516A1 (de) * 1997-06-03 1998-12-09 Ing. Erich Pfeiffer GmbH Spender für Medien
FR2906233A1 (fr) * 2006-09-27 2008-03-28 Valois Sas Dispositif de distribution de produit fluide.

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JPH0410087U (de) * 1990-05-15 1992-01-28
FR2664182B1 (fr) * 1990-07-09 1992-10-09 Valois Pompe-doseuse pour pulverisateur sous pression avec securite intrinseque.
US5273189A (en) * 1991-02-14 1993-12-28 Societe Technique De Pulverisation - Step Device for spraying or dispensing a fluid, the device including a member sliding in its admission duct
ATE180685T1 (de) * 1991-12-02 1999-06-15 Py Daniel C Vorrichtung zum verabreichen eines medikaments ins auge
BR9201113A (pt) * 1992-03-30 1993-10-05 Jack Brakarz Aperfeicoamento em micro-bomba atomizadora de liquidos
US5267986A (en) 1992-04-06 1993-12-07 Self-Instill & Co., Inc. Cartridge for applying medicament to an eye from a dispenser
FR2699835B1 (fr) * 1992-12-28 1995-03-31 Oreal Ensemble pour la pulvérisation d'un liquide comportant une pompe à précompression.
US5370280A (en) * 1993-12-14 1994-12-06 Su; Cheng-Yuan Valve for a sprayer
US5566865A (en) * 1993-12-22 1996-10-22 Valois S.A. Manual atomizing pump with adjustable dosage
US5562234A (en) * 1995-10-12 1996-10-08 Su; Cheng-Yuan Hand sprayer
US5579958A (en) * 1995-10-12 1996-12-03 Su; Cheng-Yuan Liquid sprayer
US5692648A (en) * 1995-11-16 1997-12-02 Su; Cheng-Yuan Sealing cap of an atomizer
US5687883A (en) * 1995-11-16 1997-11-18 Su; Cheng-Yuan Inductor valve of an atomizer
US6050457A (en) * 1995-12-06 2000-04-18 The Procter & Gamble Company High pressure manually-actuated spray pump
FR2751897B1 (fr) * 1996-08-05 1998-10-30 Sofab Systeme d'assemblage etanche d'une pompe miniature sur un reservoir de faible contenance
US5775886A (en) * 1996-08-08 1998-07-07 Terwilliger; Gerald L. Gas compressor with reciprocating piston with valve sheath
ES2167160B1 (es) * 1999-06-16 2003-10-01 Calmar Monturas Sa Bomba pulverizadora de liquidos.
US6173869B1 (en) 1999-09-23 2001-01-16 Color Access, Inc. Multi-piston, ratcheted dispensing device
US6830163B2 (en) * 2002-04-17 2004-12-14 Valois S.A.S. Fluid dispenser pump
US7255248B2 (en) * 2002-08-29 2007-08-14 Emsar, Inc. Plug style pump
DK1565270T3 (da) * 2002-11-25 2006-08-14 Saint Gobain Calmar Sa Forkompressionspumpe med reduceret höjde
EP1693115B1 (de) * 2005-02-22 2008-01-09 Ing. Erich Pfeiffer GmbH Spender für Medien sowie Montageverfahren hierfür
FR3100724B1 (fr) * 2019-09-17 2023-03-24 Aptar France Sas Pompe à précompression haute pression
CN218056508U (zh) * 2022-09-13 2022-12-16 广东尼特包装制品有限公司 一种喷雾泵

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GB2014233A (en) * 1978-02-09 1979-08-22 Adm Spa Manually-operated atomizer pump
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FR78995E (fr) * 1961-01-07 1962-10-05 Vaporisateur
DE2462828B1 (de) * 1973-11-15 1980-12-11 Yoshino Kogyosho Co Ltd Handbetaetigter Kleinzerstaeuber
FR2319788A1 (fr) * 1975-08-01 1977-02-25 Unilever Nv Pompe actionnee au doigt pour la distribution de liquides
GB2014233A (en) * 1978-02-09 1979-08-22 Adm Spa Manually-operated atomizer pump
GB2179406A (en) * 1985-07-24 1987-03-04 Monturas & Fornituras Sa Dispensing pump for a fluid contained in a container

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656901A1 (fr) * 1990-01-08 1991-07-12 Step Soc Tech Pulverisation Perfectionnement d'une pompe-doseuse a precompression pour en ameliorer l'amorcage et garantir sa simplicite d'assemblage.
EP0437139A1 (de) * 1990-01-08 1991-07-17 Societe Technique De Pulverisation (S.T.E.P.) Vordruckdosierpumpe
US5443185A (en) * 1990-11-09 1995-08-22 Ing. Erich Pfeiffer Gmbh & Co. K.G. Dispenser for media
FR2674747A1 (fr) * 1991-04-05 1992-10-09 Step Soc Tech Pulverisation Dispositif distributeur de gouttes de petit volume, notamment pour soins ophtalmologiques.
EP0882516A1 (de) * 1997-06-03 1998-12-09 Ing. Erich Pfeiffer GmbH Spender für Medien
US6059150A (en) * 1997-06-03 2000-05-09 Ing. Erich Pfeiffer Gmbh Media dispenser having a plurality of flow operating states
KR100559101B1 (ko) * 1997-06-03 2006-07-25 잉크 에리히 파이퍼 게엠베하 매체분배기
FR2906233A1 (fr) * 2006-09-27 2008-03-28 Valois Sas Dispositif de distribution de produit fluide.
WO2008037910A1 (fr) * 2006-09-27 2008-04-03 Valois Sas Dispositif de distribution de produit fluide.
US7770759B2 (en) 2006-09-27 2010-08-10 Valois S.A.S Liquid dispenser device

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DE68909310T2 (de) 1994-03-24
DE68909310D1 (de) 1993-10-28
US4930999A (en) 1990-06-05
EP0345132B1 (de) 1993-09-22
JPH02127270A (ja) 1990-05-15

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