Valve
US4489915A · kind A · utility
0Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/188
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary plug valve includes a rotary plug which has a relatively thin-walled valving portion. To lock the valve in position or to achieve leak tight closure of the valve, the rotary plug is subjected to pressure such that the wall of the thin-walled valving portion deflects outward to tightly contact the surrounding wall of the plug receiving cavity in the valve housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.