Pressure-activated flexible valve
US6547108B2 · kind B2 · utility
31Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/145
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pressure-activated flexible valve for use with a container for dispensing fluid material. The valve has a single sealing surface and comprises an inner component having a sealing portion and an outer component having an annular rim that seats against the sealing portion. The outer component also has a flexible portion that changes shape in response to pressure from the container material, thereby opening and closing the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.