Resettable bi-stable thermal valve
US7424978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2007 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Feb 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/773
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A temperature sensitive resettable linear actuator includes a linear actuator housing and a support shaft. The support shaft has a first end portion configured for longitudinal movement within the linear actuator housing and a second end portion extending from the linear actuator housing. The support shaft is configured to translate between an extended position and a retracted position. A shape memory alloy device is positioned within the linear actuator housing and coupled to the support shaft for moving the support shaft from the extended position to the retracted position when the shape memory alloy device reaches a predetermined temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.