Pushbutton switch with disabling capability
US5803237A · kind A · utility
Inventors
Key dates
| Filing date | Oct 29, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Oct 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The pushbutton switch of the present invention includes one or more normally open contact switches and a moveable base plate having a handle and moveable to either a disabled or an operational position by a force applied to the handle. One or more pushbuttons are included wherein each pushbutton is individually depressable to operate a respective one of said normally open contact switches to a closed condition when the moveable base plate is in the operational position. A cover plate having apertures corresponding to the pushbuttons and to the handle of the moveable base plate is included wherein the pushbuttons and the handle are accessible through the apertures. Two or more fasteners are used to slideably couple the moveable base plate to the cover plate. One or more detents are used to hold the moveable base plate in either the disabled or the operational position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.