Ball valve
US4552335A · kind A · utility
23Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1983 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Nov 3, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0673
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A high pressure ball valve including a valve body with inlet and outlet ports, a ball having a passageway therethrough disposed between the ports, and seats between the ball and the ports guidably supporting the ball. Each seat includes a core of polyethersulphone having a ball engaging face with the same radius as the ball, a metal reinforcing ring, and elastomeric seals bonded to the ball engaging face and the face that seats in the valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.