Inertia switches
US4201898A · kind A · utility
22Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1978 |
| Grant date | May 6, 1980 |
| Priority date | — |
| Expiry date | Jun 2, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inertia switch comprises a spiral spring-like member supported by a post in a housing, the spring comprising one contact of the switch and the housing the other. The post is insulated from the housing and provides a terminal for the switch. Acceleration or shock applied to the switch causes the spring-like member to move relative to the housing and when it contacts the housing or approaches a detector located inside and supported by the housing, switching is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.