Electricity: magnetically operated switches – magnets – and electr – Permanent magnet-actuated switches – Plural magnets
Patent
1990-04-20
1991-03-12
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Permanent magnet-actuated switches
Plural magnets
335205, H01H 900
Patent
active
049995995
ABSTRACT:
A magnetic switch assembly for an electrical circuit includes a switch housing with a cavity formed therein and at least one magnetically attractable electrical contact member exposed within the cavity. One or more electrically-conductive magnetic pole members are movably disposed within the cavity, with a magnet being secured to the pole members for movement therewith. The pole member or members and the magnet are movable in the cavity between a first position in electrical contact with the contact member in order to complete electrical continuity of the electrical circuit, and a second position spaced away from the contact member in order to break electrical continuity of the electrical circuit. A movable and magnetically attractable striker member is disposed for movement toward and away from the switch housing cavity, such as on a pivotal or hinged accessory cover. The magnetic attraction between the magnet (and pole members) and the striker member moves the pole members and the magnet into the second, circuit-breaking position whenever the striker member is moved within a predetermined distance from the cavity.
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Donovan Lincoln
Irvin Automotive Products, Inc.
Picard Leo P.
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