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
CN101316660AActive Publication Date: 2008-12-03APTAR FRANCE SAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
APTAR FRANCE SAS
Publication Date
2008-12-03

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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.
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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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