Device for indicating the operative position of a valve
US4133288A · kind A · utility
15Cited by
6References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Apr 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8225
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary actuator for a valve is associated with an indicator mechanism provided entirely exteriorily to the housing of the valve and out of axial alignment with the valve spindle. The indicator rotates with an actuating member of the valve and is movable relative to a surface of the actuating member to provide a visual and tactile indication of the operative position of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.