Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1982-01-15
1983-12-20
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335266, H01F 708
Patent
active
044220600
ABSTRACT:
An actuator driven by D.C. power suitable for use in actuating automobile door locking device. The actuator has a yoke apparatus defining a space, two annular solenoid coils supported and received by the yoke apparatus and adapted to be energized simultaneously such that poles of the same polarity appear at the adjacent ends of the coils, and moving means reciprocatably disposed in the space of the yoke apparatus. The moving means includes an axially magnetized permanent magnet carried by a shaft and a pair of magnetic members attached to both axial ends of the permanent magnet.
REFERENCES:
patent: 3149255 (1964-09-01), Trench
patent: 3503022 (1970-03-01), Burdett
patent: 4067541 (1978-01-01), Hunter
patent: 4233585 (1980-11-01), Sugimoto et al.
Matsumoto Norio
Umehara Teruo
Broome Harold
Hitachi Metals Ltd.
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