Electric switch assembly and related method of use

Details Electric switch assembly and related method of use Electric switch assembly and related method of use

1991-08-26

1993-04-06

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Plural magnets

335206, H01H 900

Patent

active

052007260

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.

REFERENCES:
patent: 3400347 (1968-09-01), Macys et al.
patent: 4186362 (1980-01-01), Kondo et al.

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