Wafer swing check valves
US4128111A · kind A · utility
32Cited by
6References
9Claims
0Family size
Inventors
Key dates
| Filing date | Jun 18, 1976 |
| Grant date | Dec 5, 1978 |
| Priority date | — |
| Expiry date | Jun 18, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7903
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wafer-type swing check valve having a body flange with a counter-bore into which an easily removable lapped disc support is located. The disc is hinged to the disc support and positioned to seat in a counterbored opening in the disc support to prevent reverse flow. The disc and its support are readily removable as a unit from the valve body. A removable seat may be provided in the disc support to simplify seat relapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.