Valve device
US4819691A · kind A · utility
24Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1988 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Feb 22, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8275
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve device for controlling a fluid flow. The device comprises a valve body arranged in a valve housing and placeable against a valve seat and moveable away from the seat. A center portion of the valve body forms an integral part of a membrance manufactured from a resilient material. Said part of the membrane freely, without friction, embraces the shaft of a membrane manoeuvring member having a head which is gripped by a cavity in the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.