Pyrotechnic actuator with a deformable membrane
US6397595B2 · kind B2 · utility
7Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | May 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1624
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pyrotechnic actuator comprises a deformable membrane (24) separating a first chamber (20), which is able to receive pyrotechnic combustion gases, from a second chamber (22) containing a control member (32) displaceable by the membrane (24) during the operation of the actuator. In the inoperative state, the membrane (24) is prestressed counter to its deformation controlled by the intake of gases into the first chamber (20). In this way the functional travel is increased, which e.g. makes it possible to open or close a circuit with a larger cross-section without increasing the actuator size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.