Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1980-07-21
1983-08-30
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
34081526, H01F 708
Patent
active
044019599
ABSTRACT:
A magnetically actuated indicator which includes an elongated housing and an elongated core having a first asymmetric axial extremity mounted for (a) sliding axial movement and (b) rotation about the axis thereof. At least one elongated winding is disposed for cooperation with the core. The apparatus also includes at least one rotatably mounted indicator member having at least first and second discrete magnetic poles disposed in spaced relationship.
REFERENCES:
patent: 3091725 (1963-05-01), Huston
patent: 3680083 (1972-07-01), Pihl
patent: 4128825 (1978-12-01), Madsen
Daniels Richard H.
Enright John A.
Ives Milton N.
Broome Harold
North American Philips Corporation
Smith Robert S.
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