Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent
1978-09-15
1980-10-14
Braun, Fred L.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
335302, 335306, H01F 704, H01F 702
Patent
active
042284163
ABSTRACT:
A composite magnet includes at least two magnet members oriented to have their polar axes parallel and aligned, with corresponding poles facing the same direction, and two pole members made of magnetically attractive material abutting the polar surfaces of the magnets, each one abutting all the poles of a particular polarity so that one pole member forms a composite North pole and the other forms a composite South pole. A permanent magnet anchoring assembly includes a casing, made of a non-magnetically attractive material, encasing a permanent magnet member to expose at least one surface thereof. The casing is formed with at least one bearing edge located adjacent and extending parallel to and in the same plane as the exposed surface and a leverage arm extends generally perpendicular to the bearing edge for rotating the anchoring assembly about the bearing edge. As preferably embodied, the magnet member is adapted to provide both a North and a South pole at said exposed surface, and, advantageously, is the foregoing composite magnet. Also as preferably embodied, the bearing edge of the casing is beveled to facilitate rotation about the edge.
REFERENCES:
patent: 2268011 (1941-12-01), Beechlyn
patent: 3059156 (1962-10-01), Moriya
patent: 3169184 (1965-02-01), Vye
patent: 3432941 (1969-03-01), Minchom
patent: 3452310 (1969-06-01), Israelson
patent: 3755706 (1973-08-01), Scott
patent: 4025911 (1977-05-01), Bobeck et al.
patent: 4114532 (1978-09-01), Arzoumanian
Braun Fred L.
Hov-Air-Ship, Inc.
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