Pushbutton switch with magnetically coupled armature

Details Pushbutton switch with magnetically coupled armature Pushbutton switch with magnetically coupled armature

1998-09-25

1999-11-23

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Plural magnets

335205, 200521, H01H 900

Patent

active

059907720

ABSTRACT:
An electrical switch has a substrate with at least one pair of spaced switch contacts arranged to be shorted by an electrically conductive armature. The armature defines a central axis with first and second portions on either side of the axis which portions terminate at first and second edges. The armature is normally held spaced from the contacts by magnetic attraction to a coupler layer disposed in spaced relation to the substrate. The armature is movable by an actuating force to engagement with the substrate. The armature separates from the coupler layer by a double pivoting motion. An actuating force applied to the armature remote from its central axis causes one edge of the armature nearest the actuating force to break away from the coupler layer. The armature then pivots about the opposite edge of the armature until the one edge bottoms on the substrate. This is followed by the opposite edge of the armature breaking away from the coupler layer and pivoting about the one edge until the opposite edge bottoms on the substrate.

REFERENCES:
patent: 3859612 (1975-01-01), Kashio
patent: 4068202 (1978-01-01), Lyons
patent: 4296394 (1981-10-01), Ragheb
patent: 4354081 (1982-10-01), Serras-Paulet
patent: 4400594 (1983-08-01), Serras-Paulet
patent: 4489297 (1984-12-01), Haydon et al.
patent: 4513271 (1985-04-01), Reisem
patent: 5523730 (1996-06-01), Van Zeeland
patent: 5666096 (1997-09-01), Van Zeeland
patent: 5867082 (1999-02-01), Van Zeeland

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