Valve actuator
US6003837A · kind A · utility
40Cited by
20References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8242
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
There is disclosed an actuator for a rotary valve, such as a butterfly valve which rotates a quarter of a turn between open and closed positions. The actuator includes a drive mechanism releasably attachable to the stem of the valve for rotating it in response to operation of a reversible electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.