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Fluid product dispensing pump

A technology for fluid products, dispensing pumps, applied in the direction of liquid dispensing, pumps, piston pumps, etc.

Inactive Publication Date: 2006-10-25
VALOIS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pump is activated, the moving parts of the pump that cooperate with this spring move, compressing the spring, and the presence of air may cause problems with the ease of use and reliability of the pump

Method used

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  • Fluid product dispensing pump
  • Fluid product dispensing pump

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The pump according to the invention has a pump body 10 which delimits a dosing chamber 20 between an upper piston 30 and a lower piston 40 . The upper piston 30 slides in an upper part 11 of the pump body and the lower piston 40 slides in a lower part 12 of the pump body. Preferably, the lower piston 40 is floatingly mounted in the pump body, and cooperates with a spring 50, which is mounted on the bottom wall of the pump body 10 and forms the return spring of the pump.

[0017] According to the invention, the spring 50 is completely isolated from the fluid dispensed by the pump. This means that no product can enter the spring chamber, the lower part of the pump body where the spring is located. In order to ensure the reliable operation of the pump, the present invention provides a ventilation device 15 at the lower part 12 of the pump body, so that air can enter and / or be exhausted when the pump operates. Thus, air can be expelled from the breather 15 when the lower ...

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PUM

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Abstract

A fluid product dispensing pump has a pump body (10) containing a dosing chamber (20) defined between an upper piston (30) and a lower piston (40), the upper piston being positioned between the pump body (10 ) slides in an upper part (11), the lower piston slides in a lower part (12) of the pump body (10), and the lower piston (40) is connected with a spring ( 50) Coordination, characterized in that the spring (50) does not have any contact with the fluid product, the lower part of the pump body (12) has a ventilation device (15) that allows air to enter and / or discharge when the pump is in motion, and the isolation device (60 ) is used to prevent fluid products from entering the aerator (15).

Description

technical field [0001] The present invention relates to a fluid dispensing pump, and a fluid dispensing device comprising such a pump. Background technique [0002] Dispensing pumps for fluid products are known in the prior art. The invention particularly relates to pumps in which the return spring of the pump is not in contact with the product dispensed by the pump. Therefore, the spring is located in a chamber in the pump body that is isolated from the product but contains air. When the pump is actuated, the moving parts of the pump that engage the spring move, compressing the spring, and the presence of air can create problems with ease of use and reliability of the pump. Contents of the invention [0003] It is therefore an object of the present invention to provide a fluid dispensing pump which is safe and reliable to use, and which is also simple and inexpensive to manufacture and assemble. [0004] The subject of the present invention is therefore a fluid dispens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D83/14F04B9/14B05B11/00B65D47/34
CPCB05B11/1019B05B11/104B05B11/1074
Inventor 吕多维克·珀蒂
Owner VALOIS SA