Self-contained actuation and detection device
US4175677A · kind A · utility
6Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1977 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Aug 11, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C37/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A double ended piston assembly is maintained in a cocked position in a stepped piston chamber under the influence of pressurized sensor gas. Loss of pressure results in the pistons being driven to an actuating position wherein a puncture element carried thereby fractures a frangible disc in a high pressure gas container. High pressure actuating gas from the container is then routed by the device to operate a responsive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.