Momentary contact rotary switch device
US8178800B2 · kind B2 · utility
0Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2009 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jan 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary switch for activating selected functions in a hand held device. One embodiment of the invention provides a rotary switch having a rotatable switch selector. Whenever the switch selector is rotated, it reduces the diameter of a torsion spring causing the torsion spring to contact a switch contact and signal a microprocessor to selectably power a particular circuit or a step in a routine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.