Pump for dispensing fluid products
US7870978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1018
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The pump for dispensing fluid products includes a pump body (10), a pump chamber (20) at least one piston (72) sliding inside the pump chamber (20) for dispensing a fluid product, a dispensing orifice (45) and a shutter (38) which interacts with the dispensing orifice (45) and is embodied in such a way that it is movable and/or deformable between the closed position of the dispensing orifice (45) and the open position thereof, the shutter being elastically driven to a closed position. The pump includes only one elastic element (50) in the form of a spring for bringing at least one piston (72) to a rest position after actuation and for driving the shutter (38) to a closed position and the pump body (10) is embodied in one piece with the shutter (38).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.