Inertia switch
US4336426A · kind A · utility
1Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1980 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Sep 5, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inertia switch including a cone-shaped inertia mass element movable from a stable condition wherein it supports a movable switch plunger in a position for maintaining a pair of switch blades in an open condition, into a collapsed condition in response to an impact bringing about an abrupt change in movement. In the collapsed condition the inertia mass will be out of its plunger supporting position allowing the same to activate the switch by permitting the switch blades to close.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.