Rotary valve position indicator
US9618136B2 · kind B2 · utility
4Cited by
24References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Dec 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8292
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary valve position indicator is disclosed. An example apparatus includes an actuator housing defining an explosion-proof enclosure boundary. An actuator output shaft has a first shaft portion and a second shaft portion. The first shaft portion is partially disposed within the explosion-proof enclosure boundary, and the second shaft portion is disposed outside of the explosion-proof enclosure boundary. A visual position indicator is disposed on the second shaft portion of the actuator output shaft and indicates the rotational position of the actuator output shaft relative to the actuator housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.