Fluid dispenser
US7216781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2003 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | May 20, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/068
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid dispenser (100; 200; 300; 400) for dispensing a fluid in liquid or in powder form, the dispenser including a reservoir (12) serving to contain fluid, and a dispensing orifice (114; 214; 314; 414) via which the fluid is dispensed. The reservoir (12) having an actuating wall (111; 211; 311; 411) and a backing wall (112; 212; 312; 412), the walls be adapted to be brought towards each other by elastic deformation to reduce the volume of the reservoir, and thus to deliver fluid through the dispensing orifice. The dispenser further having a one-piece body (110; 210; 310; 410) and at least one flexible sealing film (120; 220; 320; 421; 422), the actuating wall and the backing wall being formed by the one-piece body, wherein the actuating wall and the backing wall are angularly positioned relative to each by forming an angle that decreases when they are brought towards each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.