Centrifugal ball switch
US4689452A · kind A · utility
4Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Dec 16, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention is directed to a rotational speed sensing switch which provides a variable linear displacement of an output member in response to a varying speed rotational input. The switch includes a sensing means, which includes a rotatable rolling element-and-ramp assembly, acting in cooperation with a signaling means which includes an axially movable actuating disc, an output member comprising a switch rod, and a biasing means. The aforementioned improvement over the prior art comprises a regulating means included within the sensing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.