Selectively lockable push switch
US4467159A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A selectively lockable push switch adapted to be turned on in a multistage manner, including a casing, a holder movable together with a knob projecting out of a through-opening of the casing, a compression spring for urging the holder upwardly, an uneven portion formed on either one of the holder and the casing, a coiled spring provided with a lever member having an engageable portion formed at its one end such that the engageable portion is moved along a grooved displacement passage formed on the uneven portion in response to upward and downward displacement of the holder, and switch means selectively turned on in the multistage manner in response to displacement of the holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.