Networked pyrotechnic actuator incorporating high-pressure bellows
US7762189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2007 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Apr 5, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/006
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pyrotechnically powered actuator having a bellows that provides a force and stroke upon initiation is disclosed. The actuator includes a housing body with a first end and a second end. The bellows is coupled to the first end of the housing body. A cover is coupled to the second end of the housing body. An initiator is located within the housing body and includes a pyrotechnic material and a bridge element. The housing body, the bellows, and the cover define a hermetically sealed chamber. The bellows is compact, lightweight, and can withstand internal and external pressure at least as high as 3,000 psi. An exemplary embodiment includes a housing body that provides a compartment for adding supplemental pyrotechnic material. Further exemplary embodiments of the actuator include a chip initiator that requires less than 1 amp to function in less than 10 milliseconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.