Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1975-02-25
1977-03-29
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
179115R, 1791155ES, H01F 708
Patent
active
040152278
ABSTRACT:
An electromagnetic transducer in which a D.C. magnetic flux generating section including a permanent magnet and a signal flux generating section including a coil are arranged in spaced relation on opposite sides of a diaphragm to form a balanced type transducer.
REFERENCES:
patent: 2116293 (1938-05-01), Weitkowitz
patent: 2566850 (1951-09-01), Mott
patent: 3060282 (1962-10-01), Duncan
patent: 3112374 (1963-11-01), Gorike
Miura Kenzo
Riko Yasuhiro
Harris George
Matsushita Electric - Industrial Co., Ltd.
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