Dispensing pump with deformable pump wall and positive shut-off
US6755327B1 · kind B1 · utility
47Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Oct 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1059
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A container-mounted dispensing pump incorporates an elastically deformable pump wall and elastomeric valves for controlling the flow into and from the pump chamber. A mechanism at the movable end of the deformable pump wall engages the outlet valve to effect positive closure thereof when the actuator is disposed in an extended, shipping position. With the pump actuator placed in the shipping position, the close outlet valve will preclude leakage of the container contents though the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.