Extended hub valve closure member
US4491299A · kind A · utility
1Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1982 |
| Grant date | Jan 1, 1985 |
| Priority date | — |
| Expiry date | Sep 3, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve closure member with a hub which extends beyond the radius of the circumferential sealing region of the closure member to a point greater than the extended edge of the lip of the valve seat recess in the valve body. The extended hub is spaced from the circumferential sealing region by a recess to receive a portion of the lip when the closure member is rotated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.