Cam valve self-centering seat
US4519579A · kind A · utility
42Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1983 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Feb 14, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0673
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid valve capable of operation in high pressure, bidirectional flowpaths includes a chamber having a circular port in which an axially and radially movable seat ring is engaged by an eccentrically movable valve plug having a spherically convex sealing surface. The plug is mounted to a valve shaft supported in the body for rotation about an axis transverse to, but offset from, the centerline of the port. The seat ring, body and a retainer ring include among them a pair of annular channels for retaining a pair of seals adapted for improving their sealing action with pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.