Dual condition responsive electrical switch
US4757165A · kind A · utility
18Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Oct 28, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/54
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual condition responsive switch is shown including first and second discs each having convex-concave surface configurations on opposite sides thereof adapted to invert its configuration upon being subjected to selected conditions. A motion transfer member extends from the second disc to an electric switch. At a first range of conditions the first disc prevents actuation of the switch, at a second range of conditions the curvature of the first disc has inverted allowing actuation of the switch while at a third range of conditions the curvature of the second disc has inverted resulting in deactuation of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.