EP0486378B1 - Sprüh- oder Abgabevorrichtung eines flüssigen Produktes mit Ansaugen des im Austrittkanal enthaltenden Produktes am Ende der Betätigung - Google Patents

Sprüh- oder Abgabevorrichtung eines flüssigen Produktes mit Ansaugen des im Austrittkanal enthaltenden Produktes am Ende der Betätigung Download PDF

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Publication number
EP0486378B1
EP0486378B1 EP91403023A EP91403023A EP0486378B1 EP 0486378 B1 EP0486378 B1 EP 0486378B1 EP 91403023 A EP91403023 A EP 91403023A EP 91403023 A EP91403023 A EP 91403023A EP 0486378 B1 EP0486378 B1 EP 0486378B1
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EP
European Patent Office
Prior art keywords
piston
plunger
rod
pump
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
EP91403023A
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English (en)
French (fr)
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EP0486378A1 (de
Inventor
Alain Lafosse
Firmin Garcia
Jean-Pierre Lina
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
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Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP0486378A1 publication Critical patent/EP0486378A1/de
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Publication of EP0486378B1 publication Critical patent/EP0486378B1/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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1097—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 with means for sucking back the liquid or other fluent material in the nozzle after a dispensing 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
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1049—Attachment arrangements comprising a deformable or resilient ferrule clamped or locked onto the neck of the container by displacing, e.g. sliding, a sleeve surrounding the ferrule

Definitions

  • the present invention relates to a device for spraying or distributing fluid product, with suction of the product contained in the outlet channel at the end of actuation.
  • Many fluid products are packaged in the form of pump or valve distributors which spray the product, or dispense it without spraying it when a user presses a button.
  • the product is emitted through an outlet channel, generally incorporated into the pusher.
  • the end portion of said outlet channel is generally of small diameter, so that part of the product remaining in this end portion for a long period of non-use can dry out by obstructing said end portion.
  • the object of the present invention is to avoid these drawbacks.
  • the subject of the present invention is a pump for dispensing or spraying a fluid product
  • a pump body delimiting a pump chamber in which a piston slides
  • said pump comprising a hollow push rod having an outlet passage, said push rod being connected to the piston to actuate said piston and allow the product to exit
  • said pump further comprising a suction chamber which communicates with the hollow push rod and which decreases in volume when the rod is pressed pusher and increases in volume when the pressure on the pusher rod ceases, characterized in that said suction chamber is delimited by the piston and the pusher rod, and the volume of said chamber varies by relative sliding of the push rod and piston.
  • the push rod has a crown extended towards the pump chamber by a skirt inside which slides an upper annular part of the piston, in sealed contact with said skirt, and said push rod further comprises a solid cylindrical part on which a lower tubular part of the piston can slide by cutting the communication between pump chamber and the outlet passage, said pump chamber being placed in communication with said outlet passage when said lower tubular part of the piston is above said solid cylindrical part of the push rod.
  • an upper annular part of the piston slides in sealed contact on a complementary part of the push rod
  • said push rod further comprises a solid cylindrical part on which a lower tubular part of the piston can slide by cutting the communication between the pump chamber and the outlet passage, said pump chamber being placed in communication with said outlet passage of the pusher, when said lower tubular part of the piston is located above said solid cylindrical part of the push rod.
  • a return spring arranged in the pump chamber can urge the push rod towards the outside of the pump.
  • a precompression spring is mounted between the push rod and the piston and biases the piston towards a position where said tubular lower part of the piston slides on said solid cylindrical part of the push rod.
  • the push rod has a narrowed lower part provided with a lateral orifice communicating with the outlet passage and the piston comprises an inner tubular part sliding in sealed contact with the push rod, said inner tubular part being extended by a sliding lower narrowing in sealed contact with the narrowed lower part of the push rod, said suction chamber being delimited by the push rod, its narrowed lower part, the internal part of the piston and its lower shrinkage.
  • the narrowed lower portion of the push rod has at least one groove extending from the side port axially away from the pump chamber.
  • a first spring disposed in the pump chamber biases the piston towards the outside of the pump
  • a second spring is mounted between the push rod and the piston and biases the push rod so as to move it away from the piston. to the outside of the pump.
  • the pump shown in Figures 1 to 3 consists of a hollow cylindrical pump body 201, having an axis 202 of revolution.
  • the pump body 201 has an open upper end 201c and a lower throttle 201a, itself extended downwards by an inlet duct 201b, which communicates with a reservoir of product to be dispensed (not shown), directly or by a dip tube (not shown).
  • the pump body 1 defines a pump chamber 206 which normally contains product to be dispensed.
  • the inlet duct 201b is equipped with an inlet valve, which may for example include a ball 215 adapted to be applied in a sealed manner on a valve seat 216, by closing the inlet conduit 201b, when an overpressure is created in the pump chamber 206.
  • an inlet valve which may for example include a ball 215 adapted to be applied in a sealed manner on a valve seat 216, by closing the inlet conduit 201b, when an overpressure is created in the pump chamber 206.
  • the ball 215 comes off from its seat 216 by opening the inlet duct 201b, while being maintained at the vicinity of its seat 216 by arms 217 which extend from the lower constriction 201a of the pump body.
  • the inlet valve could have any other known shape, without departing from the scope of the present invention, as described in the claims.
  • the pump body 201 can be snapped into a turner 209, a central part 209a of which, pierced with a central hole 209b, covers the upper end 201c of the pump body.
  • the tourette 209 can for example be screwed onto the neck of the product reservoir (not shown) and an annular seal 230 can be interposed between the tourette 209 and the neck of the reservoir.
  • the pump body 201 could be fixed by any other known means to the reservoir, for example by crimping a metal cup.
  • a piston 203 slides in the pump body 1. As shown in FIG. 3, the piston 203 is of revolution around the axis 202, and advantageously has at at least one outer peripheral sealing lip 205 and a lower and inner tubular part 204. The piston 203 is further extended upwards by an upper annular part 203a, up to an upper end comprising an outer peripheral sealing lip 203b .
  • the piston 203 is slidably mounted with lost movement on a push rod 207, 208, consisting of a sleeve 207 fitted tightly onto an inner core 208, so that said sleeve 207 and said inner core 208 are integral.
  • the sleeve 207 comprises a crown 207a which defines a lower shoulder 207f and an upper shoulder 207d.
  • the crown 207a is extended outwardly downwards by a skirt 207c, which surrounds the sleeve 207.
  • the upper annular part 203a of the piston slides inside the skirt 207c, the peripheral sealing lip 203b being in leaktight contact with the skirt 207c.
  • the sleeve 207 is extended vertically upwards by an upper tubular part 207e.
  • the sleeve 207 has an inner relief 207b, which allows precise relative positioning of the sleeve 207 and the inner core 208 during their assembly, by fitting the inner core 208 into the sleeve 207 until the inner relief 207b stops.
  • the inner core 208 has a lower enlargement 208a, provided with a peripheral seat 208b forming a lower stop for the lower tubular part 204 of the piston 203: the piston 203 is therefore trapped between an upper stop formed by the lower shoulder 207f of the sleeve 207 and a lower stop formed by the peripheral seat 208b of the inner core 208, so that the piston 203 can slide with lost movement between these two stops.
  • the inner core 208 has a cylindrical part 208g, on which slides the lower tubular part 204 of the piston 203.
  • An axial groove 208f is hollowed out in the solid cylindrical part 208g of the core 208 from a certain distance above the peripheral seat 208b, and extends upwards over the entire length of the inner core 208, to open into the upper tubular part 207c of the sleeve 207.
  • said lower tubular part 204 isolates the pump chamber 206 from the groove 208f.
  • the groove 208f is in communication with the pump chamber 206.
  • the inner core 208 can also comprise a skirt 208c which extends the lower enlargement 208a downwards and slides in the pump body 1.
  • the skirt 208c participates in guiding the push rod 207, 208 in the pump body 1, and limits the downward movement of the push rod 207, 208, abutting against the lower throttle 201a of the body of pump 1.
  • the skirt 208c has one or more recesses 208d which allow communication between the pump chamber 206 and the groove 208f of the core 208 when the lower tubular part 204 of the piston is located above the part 208h of the core 208.
  • an axial conduit 210 of revolution about the axis 202, of a pusher 211 is fitted tightly onto the upper tubular end 207e of the sleeve, in abutment against the upper shoulder 207d.
  • the axial duct 10 is extended by an outlet channel 212, for example horizontal, which opens laterally out of the pusher 211.
  • the pusher 211 could have any other known shape, and may optionally include a spray nozzle.
  • a spring 200 is supported on the one hand on the lower constriction 201a, and on the other hand on the lower enlargement 208a of the core 208, so as to urge upward the push rod 207,208.
  • the movement of the push rod 207, 208, is limited upwards by the abutment of the skirt 207c of the sleeve 207 against the central part 209a of the spinner 209.
  • an annular seal 231 is provided under the part central 209a of the tourette 209, sandwiched at its outer periphery between said central part 209a of the tourette 209 and the upper end 201c of the pump body 201. Under the bias of the spring 200, the skirt 207c is therefore applied elastically against the seal 231, thereby isolating the interior of the pump body 201 when the pump is not actuated.
  • the pump chamber 206 communicates with the groove 208f of the core 208, which itself communicates with the outside via the upper tubular part 207e of the sleeve 207, the axial duct 210 and the outlet channel 212.
  • the product contained in the pump chamber 206 therefore leaves of the pump by this path, while the piston 203 descends into the pump body with the push rod 207, 208, until the skirt 208c abuts against the lower throttle 201a of the pump body 201, as shown in the figure 2.
  • the push rod 207, 208 rises under the effect of the push of the spring 200. Due to the friction between the sealing lip 205 and the pump body 201, the piston 203 remains first motionless.
  • the core 208 therefore slides upwards relative to the lower tubular part 204 of the piston, which first brings said lower tubular part 204 to the level of the part 208h of the core 208, where it interrupts the communication between the pump chamber 206 and the groove 208f of the core 208.
  • the part 208h of the core 208 continues to slide upwards in the lower tubular part 204 of the piston, which has the effect of increasing the volume of an annular suction chamber 219 , delimited by the sleeve 7, the core 208 and the piston 207, which communicates only with the groove 208f since the outer sealing lip 203b of the upper annular part 203 of the piston is in sealed contact with the skirt 207c of the sleeve and the tubular lower part 204 of the piston is in leaktight contact with the solid part 208h of the core 208.
  • the increase in volume of the annular suction chamber 219 causes a suction of prod uit in said chamber 219.
  • the product contained in the outlet channel 212 is therefore sucked towards said chamber 219.
  • the piston 203 When the tubular lower part 204 of the piston abuts against the seat 208b of the core 208, the piston 203 is in turn driven upwards, which creates a vacuum in the pump chamber 206.
  • the inlet valve 215, 216, 217 therefore opens, which allows the entry of product into the pump chamber 206 through the inlet duct 201b, as the push rod 207, 208 and the piston 203 go up in the body of pump 201, until the skirt 207c of the sleeve abuts against the seal 231 located under the central part 209a of the tower 209.
  • the pump body 201 may possibly include an air intake orifice 218, located here above the rest position of the sealing lip 205 of the piston 203, in order to put the interior of the product reservoir into communication with the atmosphere via the central hole 209b of the tourette 209, when the skirt 207c of the sleeve is not in leaktight contact with the seal 231.
  • the orifice air intake 218 thus allows entry air in the product reservoir when the pump sucks product in said reservoir, in the ascent phase of the piston 203.
  • FIG. 1a shows an alternative embodiment of the pump of Figure 1, wherein the upper annular portion 203a of the piston slides outside the skirt 207c and not inside.
  • the operation of this pump is the same as that of the pump of FIG. 1, but also has the advantage that if the friction between the piston 203 and the pump body 201 is not enough to bring the lower tubular part 204 into abutment against its seat 208b, this is achieved by the abutment of the upper annular part 203a of the piston against the annular seal 231 at the end of the ascent of the push rod 207,208, which pushes the piston 203 downwards and applies it against its seat 208b.
  • the pump of FIG. 1a therefore has great reliability and guarantees correct operation of the suction chamber 219. Furthermore, the pump of FIG.
  • FIG. 1a differs from that of FIG. 1 by the absence of the internal relief 207b of the sleeve , which is replaced by a shoulder 208i of the inner core, which serves as a stop for the sleeve 207 fitted on said inner core 208.
  • Figure 1b shows a variant of the pump of Figure 1, which operates on a very similar principle.
  • the pump of FIG. 1b has a structure similar to the pump of FIGS. 1 to 3, which will not be described again in detail here, the parts identical or similar to the pump of FIGS. 1 to 3 bearing the same references.
  • the pump of FIG. 1b comprises a pump body 201 in which slides a piston 203 similar to that of FIGS. 1 to 3.
  • the pump body 1 is mounted on the neck d '' a reservoir via a conventional crimped metal cup 246.
  • the piston 203 is mounted with lost movement on a push rod 207, 208, formed of an inner core 208 fitted tight in a sleeve 207 which projects out of the pump body and receives an actuating push button 211 which in this example comprises a spray nozzle 211a.
  • the sleeve 207 comprises, as in the embodiment of Figures 1 to 3, a lower outer skirt 207c, in which slides an upper annular part 203a of the piston, with sealing, by defining an annular suction chamber 219 disposed around the core 208 of the push rod.
  • the sleeve 207 further comprises an outer flange 207g, on which a spring 204 mounted between said flange 207g and the piston 203 rests, and working in compression.
  • the core 208 does not have an axial groove for the outlet of the product, but a central outlet channel 241, which opens laterally at the bottom by one or more orifices 242 formed above the part 208h of core on which the lower tubular part 204 of the piston can slide with sealing.
  • the piston 203 is not in sealed contact on the core 208, so that the suction chamber 219 communicates permanently with the orifice 242 and the outlet channel 241.
  • the operation of the pump of FIG. 1b differs from that of the pump of FIGS. 1 to 3 only by the effect of the spring 240, which performs precompression.
  • the piston when the pump is actuated, the piston does not move relative to the sleeve 208 until the pressure in the pump chamber has reached a determined value, sufficient to overcome the force of said spring 240.
  • the spring 240 has in addition, the effect of returning the piston 203 to the sealing position, that is to say to a position where the tubular lower part 204 is in leaktight contact with the part 208h of the core, as soon as the pressure drops in the chamber pump.
  • the pump of FIG. 1b is equipped with a nozzle for spraying a liquid product and operates with precompression. That is to say, the product is expelled only if a sufficient, predetermined pressure is exerted on the pusher 211.
  • a precompression pump liquid remains in the small chamber 250, behind the spray nozzle 251. During the next actuation, this drop of liquid is generally sprayed without being sprayed, which forms a bad start to spray. With the application of the suction obtained by increasing the volume of the chamber 219, the volume of the chamber 250 is emptied. Under these conditions, upon actuation, the liquid will arrive in this chamber with pressure and kinetic energy, and will divide from the start by striking against the periphery of the nozzle 251. Spraying is immediate, there is no no drop projected at the start of spraying.
  • the pump presented in FIGS. 4 to 6 comprises a hollow cylindrical pump body 301, having an axis of revolution 302.
  • the pump body 301 has an open upper end 301c and a narrowed lower part 301e extending between an internal shoulder 301d of the pump body and a lower throttle 301a extended downwards by an inlet duct 301b which communicates with a reservoir of product to be dispensed (not shown), directly or by a dip tube 333.
  • the pump body 301 delimits a pump chamber 306 which normally contains product to be dispensed, and which communicates with the inlet conduit 301b by means of an inlet valve, which may for example include a flat seal 315 adapted to be applied in a sealed manner on a seat 316, by closing the inlet duct 301b, when an overpressure is created in the pump chamber 306.
  • an inlet valve which may for example include a flat seal 315 adapted to be applied in a sealed manner on a seat 316, by closing the inlet duct 301b, when an overpressure is created in the pump chamber 306.
  • the seal 315 comes off from its seat 316 by opening the inlet duct 301b, while being held in the vicinity of its seat 316 by a valve holder 317 which allows communication between the dip tube 333 and the pump chamber 306.
  • the inlet valve could have any other known form, without departing from the scope of the present invention, as described in the claims. .
  • the pump body 301 can be crimped using a metal cup 309 on the neck of the tank. It goes without saying that the pump body 301 could be fixed by any other known means to the reservoir.
  • a hollow piston 303 slides in the pump body 301.
  • the piston 301 has an outer ring 305, at least one periphery of which is in sealed contact with the body pump 301, and a cylindrical tubular inner part 304, provided with a lower constriction 304a.
  • the outer ring 305 and the tubular inner part 304 of the piston 303 are molded in one piece and connected to each other by an annular part 303a.
  • a push rod 307 substantially cylindrical and centered on the axis 302, of external diameter equal to the internal diameter of the internal tubular part 304 of the piston, slides in said internal tubular part 304.
  • the push rod 307 has a narrowed lower part 307d, of outside diameter equal to the inside diameter of the lower constriction 304a of said tubular part 304 of the piston.
  • the inner tubular part 304 of the piston and the push rod 307 delimit an annular chamber 319, which we will hereinafter call the suction chamber, the volume of which is maximum when the push rod 307 is in a raised position with respect to to the piston 303, as shown in FIG. 5, and whose volume decreases when said push rod 307 is depressed relative to said piston 303, as shown in FIG. 6.
  • the push rod 307 is pierced with a blind axial channel 307a, which opens laterally through at least one orifice 307b, pierced in the narrowed lower part 307d of the push rod.
  • a groove 307c parallel to the axis 302 extends upwards, outside the narrowed lower part 307d, from the lateral orifice 307b.
  • the push rod 307 finally has a collar 307e.
  • a spring 334 and disposed between the collar 307e and the annular part 303a of the piston 303.
  • An annular gland 308 is disposed under the lower constriction 304a of the internal tubular part 304 of the piston, and urged upwards by a spring 300, of stiffness less than the stiffness of the spring 334, which rests on the valve holder 317 , as shown in Figure 4.
  • the gland 308 is pushed against the lower constriction 304a and resiliently applies said lower constriction 304a against the narrowed lower part 307d, while pushing the piston 303 upwards.
  • the stroke of the piston 303 is limited upwards by the crimped metal cup 309.
  • the push rod 307 is urged upwards by the spring 334, and its stroke is limited upwards by the collar stop 307e against the cup 309.
  • annular seal 331 is disposed between the upper end 301c of the pump body and the cup 309. At rest, that is to say when no external action is exerted on the push rod 307 by a user, the collar 307e of the push rod is therefore applied in leaktight manner against the seal 331 by the action of the spring 334. Similarly, the outer ring 305 of the piston abuts against the seal 331, under the action of spring 300.
  • the orifice 307b of the push rod 307 opens laterally inside the suction chamber 319: it is therefore isolated from the pump chamber 306 by the sealed contact between the narrowed lower part 307d of the push rod and the lower narrowing 304a of the inner tubular part 304 of the piston.
  • the stiffer spring 334 first resumes its initial shape, pushing the push rod 307 upwards relative to the piston 303.
  • the volume of the annular suction chamber 319 increases.
  • the push rod 307 is sufficiently raised so that the lower narrowing 304a of the internal tubular part of the piston isolates the orifice 307b from the chamber 306, this increase in volume therefore results in a suction in the axial channel 307a, by the 'Intermediate orifice 307b and, optionally during part of the movement, the groove 307c.
  • Part of the product contained in the axial channel 307a and in the outlet channel of the pusher is therefore sucked towards the annular chamber 319.
  • the volume of product thus sucked is adapted so that said outlet channel 6 no longer contains product after the aspiration.
  • the spring 300 relaxes in turn, pushing the piston 303 and the gland 308 upwards. This movement creates a vacuum in the pump chamber 306, and therefore opens the inlet valve 315, 316, 317, allowing the product contained in the reservoir to return to the pump chamber 306 as the piston 303 rises until it reaches the rest position.
  • the pump body 1 is pierced with an air intake orifice 318, located in the vicinity of the upper end 301c of said pump body, and said upper end 301c of the body of the pump has an enlarged inner diameter, so that the outer ring 305 of the piston 303 is not in leaktight contact with the pump casing above and at the air intake orifice 318.
  • the collar 307e is no longer in contact with the seal 331, so that air can pass between the push rod 307 and the seal 331.
  • the pump could not include an air intake orifice 318, without departing from the scope of the present invention, as described in the claims.

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  • Reciprocating Pumps (AREA)

Claims (8)

  1. Vorrichtung zur Verteilung oder Zerstäubung eines fluiden Produkts, die einen Pumpenkörper (201-301) aufweist, der eine Pumpenkammer abgrenzt (206; 306), in der ein Kolben (203, 303) gleitet, wobei die Pumpe einen hohlen Drückerstab (207, 208; 307) besitzt, der mit einem Ausgangsdurchlaß (207f; 241; 307a) versehen ist, wobei dieser Drückerstab mit dem Kolben verbunden ist, um ihn zu betätigen und den Auslaß des Produkts zu erlauben, wobei die Pumpe weiter eine Ansaugkammer (219; 319) aufweist, die mit dem hohlen Drückerstab in Verbindung steht und deren Volumen sich verringert, wenn man auf den Drückerstab drückt, und sich vergrößert, wenn man nicht mehr auf den Drückerstab drückt, dadurch gekennzeichnet, daß die Ansaugkammer (219; 319) durch den Kolben (203; 303) und den Drückerstab (207, 208; 307) begrenzt wird und das Volumen der Kammer durch relatives Gleiten des Drückerstabs und des Kolbens variiert.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Drückerstab (207, 208) eine Krone (207a) aufweist, die zur Pumpenkammer (206) hin durch einen Mantel (207c) verlängert wird, in dessen Inneren ein oberer ringförmiger Teil (203a) des Kolbens (203) in dichtem Kontakt mit dem Mantel (207c) gleitet, und daß der Drückerstab weiter einen massiven zylindrischen Teil (208h) aufweist, auf dem ein unterer rohrförmiger Teil (204) des Kolbens (203) gleiten kann, indem er die Verbindung zwischen der Pumpenkammer ((206) und dem Ausgangsdurchlaß (207f; 241) unterbricht, wobei die Pumpenkammer (206) mit dem Ausgangsdurchlaß (207f; 241) in Verbindung gesetzt wird, wenn der untere rohrförmige Teil (204) des Kolbens sich oberhalb des massiven zylindrischen Teils (208h) des Drückerstabs (207, 208) befindet.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß ein oberer ringförmiger Teil (203a) des Kolbens (203) in dichtem Kontakt auf einem komplementären Teil (207c) des Drückerstabs (207, 208) gleitet, und daß der Drückerstab außerdem einen massiven zylindrischen Teil (208h) aufweist, auf dem ein unterer rohrförmiger Teil (204) des Kolbens (203) gleiten kann, der die Verbindung zwischen der Pumpenkammer (206) und dem Ausgangsdurchlaß (207f) unterbricht, wobei die Pumpenkammer (206) mit dem Ausgangsdurchlaß (207f) in Verbindung gesetzt wird, wenn der untere rohrförmige Bereich (204) des Kolbens sich oberhalb des massiven zylindrischen Teils (208h) des Drückerstabs (207, 208) befindet.
  4. Vorrichtung nach Anspruch 2 oder Anspruch 3, dadurch gekennzeichnet, daß eine in der Pumpenkammer (206) angeordnete Rückholfeder (200) den Drückerstab (207, 208) aus der Pumpe heraus bewegt.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß eine Vordruckfeder (240) zwischen dem Drückerstab (207, 208) und dem Kolben (203) angeordnet ist und den Kolben (203) in eine Stellung bewegt, in der der untere rohrförmige Bereich (204) des Kolbens auf dem massiven zylindrischen Teil (208h) des Drückerstabs gleitet.
  6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Drückerstab (307) einen unteren verengten Teil (307d) mit einer seitlichen Öffnung (307b) aufweist, die mit dem Ausgangsdurchlaß (207f) in Verbindung steht, und daß der Kolben (303) einen unteren rohrförmigen Teil (304) aufweist, der in dichtem Kontakt mit dem Drückerstab (307) gleitet, wobei der untere rohrförmige Bereich (304) von einer unteren Verengung (304a) verlängert wird, die in dichtem Kontakt mit dem unteren verengten Teil (307d) des Drückerstabs (307) gleitet, wobei die Ansaugkammer (319) vom Drückerstab (307), seinem unteren verengten Teil (307d), dem unteren Teil (304) des Kolbens und seiner unteren Verengung (304a) begrenzt wird.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der verengte untere Teil des Drückerstabs (307) mindestens eine Nut (307c) aufweist, die sich ausgehend von der seitlichen Öffnung (307b) axial erstreckt, indem sie sich von der Pumpenkammer entfernt.
  8. Vorrichtung nach Anspruch 6 oder Anspruch 7, dadurch gekennzeichnet, daß eine erste Feder (300), die in der Pumpenkammer (306) angeordnet ist, den Kolben (303) nach außerhalb der Pumpe bewegt, und eine zweite Feder (334), die zwischen dem Drückerstab (307) und dem Kolben (303) angeordnet ist, den Drückerstab (307) derart beansprucht, daß er vom Kolben (303) weg nach außerhalb der Pumpe entfernt wird.
EP91403023A 1990-11-13 1991-11-08 Sprüh- oder Abgabevorrichtung eines flüssigen Produktes mit Ansaugen des im Austrittkanal enthaltenden Produktes am Ende der Betätigung Expired - Lifetime EP0486378B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014028A FR2668958B1 (fr) 1990-11-13 1990-11-13 Dispositif de pulverisation ou de distribution de produit fluide, a aspiration du produit contenu dans le canal de sortie en fin d'actionnement.
FR9014028 1990-11-13

Publications (2)

Publication Number Publication Date
EP0486378A1 EP0486378A1 (de) 1992-05-20
EP0486378B1 true EP0486378B1 (de) 1995-08-16

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EP91403023A Expired - Lifetime EP0486378B1 (de) 1990-11-13 1991-11-08 Sprüh- oder Abgabevorrichtung eines flüssigen Produktes mit Ansaugen des im Austrittkanal enthaltenden Produktes am Ende der Betätigung

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Country Link
US (1) US5234135A (de)
EP (1) EP0486378B1 (de)
JP (1) JPH04267962A (de)
DE (1) DE69112175T2 (de)
FR (1) FR2668958B1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5458289A (en) * 1993-03-01 1995-10-17 Bespak Plc Liquid dispensing apparatus with reduced clogging
FR2704524B1 (fr) * 1993-04-29 1995-07-28 Step Dispositif portatif pour la distribution d'une substance fluide.
GB9405891D0 (en) 1994-03-24 1994-05-11 English Glass Company The Limi Dispenser pumps
US5664706A (en) * 1994-10-13 1997-09-09 Bespak Plc Apparatus for dispensing liquid in aerosol spray form
CA2426367C (en) 1995-01-27 2005-01-25 Yoshino Kogyosho Co., Ltd. Liquid jet pump
SI9600118A (en) * 1995-04-13 1996-10-31 Monturas Sa Precompression pump sprayer
DE19723134A1 (de) * 1997-06-03 1998-12-10 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
US5839616A (en) 1997-08-14 1998-11-24 The Procter & Gamble Company Blow molded container having pivotal connector for an actuation lever
US5954688A (en) * 1997-08-26 1999-09-21 Queen's University At Kingston Everting toroid device for delivering a drug into a body cavity
US6200288B1 (en) 1997-08-26 2001-03-13 Queen's University At Kingston Everting toroid device for insertion into a body cavity
FR2776989B1 (fr) 1998-04-06 2000-06-09 Valois Sa Organe de fixation de dispositif de distribution a habillage ogival
ES2152814B1 (es) * 1998-04-30 2001-08-16 Saint Gobain Calmar Sa Dispensador de fluidos.
USD419877S (en) * 1998-12-03 2000-02-01 Owens-Illinois Closure Inc. Liquid dispenser
FR2799185B1 (fr) * 1999-09-30 2002-01-18 Valois Sa Organe de fixation pour fixer un dispositif de distribution de produit fluide et distributeur de produit fluide comprenant un tel organe de fixation
FR2816375B1 (fr) * 2000-11-07 2003-04-11 Oreal Pompe pour la distribution d'un produit, notamment un produit cosmetique ou de soin
FR2818249B1 (fr) * 2000-12-20 2003-03-28 Valois Sa Dispositif de fixation d'organe de distribution sur un col de recipient
KR100755809B1 (ko) * 2001-03-23 2007-09-05 주식회사 종우실업 수동식 정량 분사 펌프
US7055721B2 (en) * 2001-03-23 2006-06-06 Chong Woo Co., Ltd. Finger-operated spray pump ejaculating fluid in fixed quantity
EP1390153A4 (de) * 2001-05-30 2005-06-15 Chong Woo Co Ltd Handbetätigte sprühpumpe
US6793156B2 (en) * 2002-02-28 2004-09-21 Saint-Gobain Calmar Inc. Orifice cup for manually actuated sprayer
FR2838784B1 (fr) * 2002-04-17 2004-07-09 Valois Sa Pompe de distribution de produit fluide
DE10220557A1 (de) * 2002-05-02 2003-11-13 Pfeiffer Erich Gmbh & Co Kg Spender zum Austrag fließfähiger Medien
WO2003053591A1 (es) * 2002-11-25 2003-07-03 Saint-Gobain Calmar S.A. Bomba de precompresión de altura reducida
FR2854822B1 (fr) * 2003-05-16 2005-06-24 Rexam Dispensing Sys Distributeur de produit liquide ou en gel
KR100995652B1 (ko) * 2003-08-28 2010-11-22 주식회사 종우실업 예압식 저형상 미세 수동 분사펌프
US20070045349A1 (en) * 2005-08-25 2007-03-01 Continental Afa Dispensing Company Liquid dispensing pump with shifting liquid piston
FR2910449B1 (fr) * 2006-12-22 2009-03-06 Rexam Dispensing Systems Sas Pompe compacte a capacite de rotulage du gicleur par rapport au piston.
US7748576B2 (en) * 2007-07-24 2010-07-06 Hsih Tung Tooling Co., Ltd. Pump assembly with pressable head
DE102010048986A1 (de) * 2010-10-20 2012-04-26 Ursapharm Arzneimittel Gmbh Dosierpumpe
FR3002293B1 (fr) * 2013-02-15 2015-04-10 Aptar France Sas Pompe a precompression amelioree.
DE102016114456A1 (de) * 2016-08-04 2018-02-08 Rpc Bramlage Gmbh Fingerspraypumpe sowie Düsenkopf für eine Sprühpumpe
FR3098202B1 (fr) 2019-07-02 2023-06-16 Oreal Dispositif de fixation d’un dispositif de distribution

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES409434A1 (es) * 1971-12-16 1976-01-01 Pfeiffer Kunststofftech Gmbh Perfeccionamientos en los dispositivos para emitir liquidoso productos pastosos o cremosos.
JPS55373Y2 (de) * 1974-09-26 1980-01-08
IT1134954B (it) * 1981-01-07 1986-08-20 Sar Spa Pompa ad azionamento manuale per la erogazione sotto pressione di sostanze liquide e/o dense racchiuse in un contenitore sul quale la pompa e' montata
US4640443A (en) * 1983-06-08 1987-02-03 Corsette Douglas Frank Manually operated dispensing pump
DE3715301A1 (de) * 1987-05-08 1988-11-24 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
FR2620052B1 (fr) * 1987-09-09 1990-04-27 Valois Vaporisateur du type pompe manuelle a precompression pour utilisation avec un gaz propulseur
FR2642499B1 (fr) * 1989-01-06 1991-06-14 Valois Sa Clapet anti-retour pour l'admission dans une chambre de pompe d'un liquide a vaporiser
FR2643338B1 (fr) * 1989-02-21 1991-05-10 Valois Dispositif distributeur doseur a pompe pour produits fluides
FR2652389B1 (fr) * 1989-09-26 1992-12-04 Debard Andre Perfectionnement aux pompes a precompression pour la diffusion d'un liquide.

Also Published As

Publication number Publication date
US5234135A (en) 1993-08-10
FR2668958A1 (fr) 1992-05-15
DE69112175D1 (de) 1995-09-21
DE69112175T2 (de) 1996-05-02
EP0486378A1 (de) 1992-05-20
FR2668958B1 (fr) 1994-05-20
JPH04267962A (ja) 1992-09-24

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