Plunger-operated switch unit
US4456897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1981 |
| Grant date | Jun 26, 1984 |
| Priority date | — |
| Expiry date | Jun 8, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H36/0033
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plunger-operated magnetically actuated switch enclosed in a generally cylindrical housing which may be mounted either within a cylindrical cavity or against a flat surface. A magnetic contact reed switch is housed alongside the guide for a plunger which carries a small permanent magnet. Depressing the plunger moves the magnet sufficiently to operate the magnetic reed switch. Optional plunger length and reed switch location provide for setting the switch in either a normally open or normally closed configuration. A flange is provided for securely mounting the switch unit in a cylindrical cavity. A resilient catch and a pair of mating hooks are provided to attach a flat mounting plate to the side of the housing and permit the switch unit to be mounted against a flat surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.