Exhaust valve assembly
US4204555A · kind A · utility
17Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1978 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Jun 12, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An exhaust valve assembly includes a housing having a plurality of ports and a flexible diaphragm movable between opposite positions for selectively connecting the ports. A central elongated stem on the diaphragm extends tightly through a hole in the housing for minimizing vibration of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.