Pump for dispensing fluid products
US7775404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Sep 23, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1018
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pump for dispensing fluid products includes a pump body, a pump chamber, at least one piston sliding inside the pump chamber for dispensing a fluid product, a dispensing orifice, and a shutter which interacts with the dispensing orifice and is embodied in such a way that it is movable and/or deformable between the closed position of the dispensing orifice and the open position thereof, the shutter being elastically driven to a closed position. The pump includes only one elastic element in the form of a spring for bringing at least one piston to a rest position after actuation and for driving the shutter to a closed position and the at least one piston is embodied in one piece with the shutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.