Fluid dispenser and a method of assembling such a dispenser
US7578319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2004 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jun 22, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/028
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of assembling a fluid dispenser comprising: a dispenser member (2), such as a pump, the member including an inlet tube (22; 61) in which there extends an inlet for admitting fluid into the dispenser member; a reservoir (10) for containing fluid, said reservoir comprising a cylinder (11; 11′) and a follower-piston (14) that is slidably mounted in said cylinder; and an annular dish (32; 32′) presenting an outer periphery (33) that is secured to the cylinder (11; 11′), and an inner periphery (321) defining an opening (20) of section that is small relative to the cylinder, the working volume of the reservoir (10) being defined between the dish (32; 32′) and the follower-piston (14) over a height of the cylinder, the method including the successive steps of: filling the reservoir (10) with fluid; and engaging the tube (22) in leaktight manner in the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.