Pump valve
US4181477A · kind A · utility
23Cited by
11References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | Mar 2, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7843
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The inlet and discharge valves of a pump are each comprised of a circular valve plate centered in a circular cutout in a flat valve sheet. Diametrically opposed webs join the valve plate to the main body of the valve sheet and perforations in the webs provide both, spring action and allow for air passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.