Fluid product dispensing pump

A technology for fluid formulations and dispensing pumps, which can be used in pumps, piston pumps, liquid variable displacement machines, etc., and can solve problems such as complicated starting and difficult air discharge

Active Publication Date: 2008-12-03
APTAR FRANCE SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Actuation of the pump is more complicated when the pump or the dispensing device includes a plug
It is difficult to evacuate the air contained in the pump chamber from the pump chamber, especially due to the presence of the plug

Method used

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  • Fluid product dispensing pump
  • Fluid product dispensing pump
  • Fluid product dispensing pump

Examples

Experimental program
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Embodiment Construction

[0028] [28] Referring to the drawings, the dispensing pump provided by the present invention includes a pump body 10 in which at least one first piston 72 slides. The first piston 72 partially defines the pump chamber 20, and the action of the pump causes a dose of formulation contained in the pump chamber 20 to be dispensed through the dispensing orifice 45, which is preferably formed in the dispensing head 40. . The pump preferably comprises a blocking member 38 which is arranged directly upstream of the dispensing orifice 45 and which is movable and / or movable between a blocked position which blocks the dispensing orifice 45 and an open position which opens the dispensing orifice. deformed to fit the dispensing hole. The invention is therefore particularly applicable to PFS devices equipped with such obturators. The pump chamber may comprise an inlet valve 70 which may be made in the form of a ball 75 forming a valve element and cooperating with a valve seat 71 . The pum...

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PUM

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Abstract

The invention concerns a fluid product dispensing pump designed to be associated with a fluid product reservoir (60), said pump comprising a pump body (10), a pump chamber (20), and at least one first piston (72) sliding in said pump chamber (20) to dispense the fluid product through a dispensing orifice (45), said pump including an air priming channel (100) connecting said pump chamber (20) to said reservoir (60) when the pump is primed.

Description

technical field [0001] [01] The present invention relates to pumps for dispensing fluid preparations and devices for dispensing fluid preparations comprising such pumps. Background technique [0002] [02] Dispensing pumps for fluid formulations are well known in the prior art and are used in particular in the field of cosmetics, perfumes and pharmacies. Said pumps generally comprise a piston sliding in a pump body, more precisely in a pump chamber provided in said pump body, and adapted to dispense a dose of fluid preparation per pump actuation. The pump chamber generally includes an inlet valve to allow the dose of formulation expelled per actuation to be defined. Also, especially with pharmaceutical formulations, some pumps sometimes include a plug at the dispensing orifice to avoid any contamination of the formulation between actuations. [0003] [03] One problem encountered with such pumps is their priming. In fact, before the first pump stroke, the pump chamber is fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B11/00F04B9/14F04B13/00B05B11/02
CPCB05B11/3016B05B11/3063B05B11/3004B05B11/3074B05B11/1004B05B11/1016B05B11/1063B05B11/1074
Inventor 萨米埃尔·普吕沃
Owner APTAR FRANCE SAS
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