Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1997-07-03
1999-08-31
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335128, 335130, H01F 700
Patent
active
059459000
ABSTRACT:
An electromagnetic contactor includes an iron core members formed of a first core bent in a U-shape, and a second L-shaped core contacting the first core. A coil is wound around a spool disposed on an upper arm of the first core and the second core to form a main leg while a lower arm of the first core constitutes a yoke. Thus, the iron core members can be processed by a press machine operating at a normal cutting speed, and welding and polishing operations can be eliminated to thereby reduce the number of processing steps required.
REFERENCES:
patent: 3256401 (1966-06-01), Dawson
patent: 4509026 (1985-04-01), Matsushita et al.
Hiramatsu Etsuya
Hirota Takato
Kawasaki Makoto
Machida Noriyoshi
Shibata Katsumi
Donovan Lincoln
Fuji Electric & Co., Ltd.
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