Locking valve construction
US4549569A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1984 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Oct 1, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A locking valve construction including a housing, a valve member in the housing, a fluid inlet and a fluid outlet in the housing, a valve member rotating key for rotating the valve member to an open position for selectively effecting communication between the fluid inlet and the fluid outlet, a holding member effectively mounted on the housing for holding the housing against rotation relative to a base when the valve member is being rotated by the valve member rotating key, and mounting structure for mounting the housing on the base for permitting the housing and the valve member to rotate as a unit in the event that the holding member is rendered inoperative to thereby prevent movement of the valve member relative to the housing to an open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.