Electric switch assembly and related method of use
US5200726A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1991 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Aug 26, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H36/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric switch assembly for use with a magnetic reed switch includes a trigger that is movable with respect to a housing between an open position and a closed position and that includes a trigger magnet. The switch assembly further includes a second magnet, fixed relative to the housing, that is located adjacent the first magnet when the trigger is in the open position. The magnets are oriented such that their magnetic fields tend to cancel each other when the trigger is in its open position. This provides an increased disparity in the magnetic field reaching the magnetic reed switch between the open position and closed position and eliminates the need for precision alignment and individual adjustment of the magnetic reed switch at the point of manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.