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
  • B05B11/0005—Components or details
  • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
  • B05B11/0064—Lift valves
• • 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
  • B05B11/1028—Pumps having a pumping chamber with a deformable wall
  • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
• • 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
  • B05B11/1066—Pump inlet valves
  • B05B11/1067—Pump inlet valves actuated by pressure

Definitions

• the present invention relates to a dispenser for liquid products.
• dispensers of the type comprising a reservoir provided in the upper part with a discharge orifice closed by an intake valve and opening into a metering chamber of variable volume communicating via an exhaust valve with a ejection duct formed in a dispensing head.
• the variations in volume of the metering chamber and the necessary compression of the product which occupies it with a view to its ejection are obtained by means of a piston working axially in said chamber.
• This piston generally cooperates with elastic return means in the form of one or more metal helical springs.
• each of the valves are notably distinct from the fact that the intake valve works without constraint unlike the exhaust valve which is itself subjected to the high pressures prevailing in the chamber and which therefore operates at the way of a valve.
• the intake valve includes a metal ball in contact with the product.
• the present invention aims to solve these technical problems satisfactorily by using a single easily recyclable constituent material.
• a distributor of the above type characterized in that said metering chamber is delimited by the wall of an at least partially elastically deformable bellows.
• the evacuation orifice of the tank is located at the end of a cylindrical socket receiving the intake valve.
• said exhaust valve is housed in a collar extending said chamber and connecting to the ejection duct of said head.
• the movable elements of the intake valve and of the exhaust valve are identical.
• the height of the sleeve is less than the height of said collar so that the exhaust valve is under stress.
• each of said valves has a tapered and elastically deformable capsule extended by snap lugs delimiting between them channels for the passage of the product.
• said reservoir is equipped with a collar whose side wall guides the dispensing head and its upper edge retains said head.
• the bellows is fixed to the upper part of the tank.
• said bellows comprises an upper shoulder on which bear stiffening fins carried by said head.
• the dispenser of the invention has a very simple and ergonomic structure consisting of a limited number of parts. It also has the industrial and economic advantage of being able to be produced by molding (injection or compression) using a single plastic material for all the constituent parts, which also allows the qualities of the product to be preserved.
• the present invention will be better understood on reading the description which follows, accompanied by the drawings on which.
• Figure 1 shows a partial sectional view of an embodiment of the dispenser of the invention.
• FIGS. 2A and 2B show half-views in section of the inlet and outlet valves of the dispenser of FIG. 1, respectively.
• FIG. 3 represents a sectional view of an alternative embodiment of the dispenser of FIG. 1.
• FIG. 4 represents a detailed perspective view of a movable valve element of the dispenser of FIG. 1.
• the dispenser of liquid products shown in the figures comprises a reservoir in one or more parts (R - FIG. 1 or Ri, R 2 , R 3 - Figure 3) provided, in the upper part, with a discharge orifice V closed by an intake valve a and opening into a metering chamber 10 of variable volume.
• the metering chamber 10 communicates, moreover, via an exhaust valve e, with an ejection conduit C formed inside a dispensing head T forming here push-button.
• the chamber 10 is delimited by the wall of a bellows 1 which is at least partially elastically deformable.
• the evacuation orifice V of the reservoir R, R 2 is situated at the end of a cylindrical sleeve D receiving the intake valve a and projecting into the chamber 10.
• the exhaust valve e is, for its part, housed in a collar 12 integral with the bellows 1, extending the metering chamber 10 upwards and connecting coaxially to the ejection duct C of the head T.
• the reservoir R, R 2 is equipped with a collar r whose side wall guides the head T in its axial displacement.
• the upper edge of the collar is provided with a peripheral ring j ensuring, by cooperation with a complementary rib n, the retention of the head T on the reservoir and the locking of all the components of the distributor.
• the head T covers the flange r from the outside while, in the variant of Figure 3, it is the side skirt t of the head T which is engaged inside of the collar r.
• a cover P is fitted externally with a slight radial tightening on the flange r.
• the bellows 1 is fixed to the upper part of the reservoir and, more precisely, in the embodiment shown in FIG. 1, to the lower part of the collar r by means of the base 13.
• the pressure prevailing inside of the chamber 10 results in a radial thrust on the base 13 which thus strengthens the mechanical strength of the bellows 1.
• the bellows 1 is preferably made with a rigid plastic material such as polypropylene.
• the elbows 11 of the bellows 1 have an elastic deformation capacity and in particular a flexibility which allows the bellows 1 to be compressed by axial support on the head T and thus to vary the volume of the chamber 10.
• the bellows 1 also comprises an upper shoulder 14 on which the stiffening fins I carried by the head T bear.
• the movable elements 2a, 2e of the intake and exhaust valves e are identical.
• Each of these elements has a structure of the type shown in FIG. 4.
• This structure has a sealing frustoconical capsule 21 pressing, at rest, on the respective upper ends of the sleeve D (Figure 2A) and the collar 12 ( Figure 2B) whose profile is bevelled.
• the capsule 21 is extended downwards by latching pins 22 cooperating with stops 15, b formed respectively on the internal upper wall of the bellows 1 and on the lower part of the socket D (see FIGS. 2A, 2B).
• the pins 22 delimit between them channels 20 for the passage of the liquid product.
• the height of the socket D is less than the height of the collar
• the ascent of the element 2a by vacuum in the chamber 10 by a height x with respect to its rest position makes it possible to release an intermediate space for the entry of product into the chamber 10 between the bevelled internal edge d of the sleeve. D forming a seat of the valve and the external lateral wall of the capsule 21. Furthermore, the capsule 21 is elastically deformable so as to allow, under the effect of the pressure created in the chamber 10, the exit of the liquid product by the valve d e between the outer wall 210 of the capsule 21 forming valve and the internal beveled edge 120 of the collar 12 forming the seat of the valve e (see FIG. 2B).
• the rigidity of the collar 12 is further reinforced by the presence of the ejection duct C which surrounds it coaxially.

Applications Claiming Priority (3)

Publications (2)

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• 2000
  • 2000-09-08 FR FR0011470A patent/FR2813863B1/fr not_active Expired - Fee Related
• 2001
  • 2001-09-07 US US10/362,971 patent/US6805267B2/en not_active Expired - Fee Related
  • 2001-09-07 CA CA002422136A patent/CA2422136A1/en not_active Abandoned
  • 2001-09-07 MX MXPA03001980A patent/MXPA03001980A/es active IP Right Grant
  • 2001-09-07 PT PT01967449T patent/PT1315579E/pt unknown
  • 2001-09-07 EP EP01967449A patent/EP1315579B1/de not_active Expired - Lifetime
  • 2001-09-07 JP JP2002524638A patent/JP2004508175A/ja active Pending
  • 2001-09-07 AT AT01967449T patent/ATE267055T1/de not_active IP Right Cessation
  • 2001-09-07 ES ES01967449T patent/ES2223909T3/es not_active Expired - Lifetime
  • 2001-09-07 BR BRPI0113885-5A patent/BR0113885B1/pt not_active IP Right Cessation
  • 2001-09-07 DE DE60103411T patent/DE60103411T2/de not_active Expired - Lifetime
  • 2001-09-07 WO PCT/FR2001/002781 patent/WO2002020171A1/fr active IP Right Grant
  • 2001-09-07 CN CNB018152155A patent/CN1181929C/zh not_active Expired - Fee Related
  • 2001-09-07 AU AU2001287828A patent/AU2001287828A1/en not_active Abandoned
  • 2001-09-07 DK DK01967449T patent/DK1315579T3/da active
• 2004
  • 2004-04-28 HK HK04102980A patent/HK1061373A1/xx not_active IP Right Cessation

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