Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1976-04-12
1978-03-28
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335259, H01F 718
Patent
active
040817741
ABSTRACT:
An actuating device is disclosed which is modular in construction. The device employs a modular head having a rotatable output shaft for controlling valves, etc. One or more force motors are arranged to actuate the output shaft according to the required application. The force motors are electromagnetic and can accurately position the output shaft as a function of applied current.
REFERENCES:
patent: 2842334 (1958-07-01), Short
patent: 2901210 (1959-08-01), Hebard
patent: 2989871 (1961-06-01), Straub et al.
patent: 3435391 (1969-03-01), Straub
patent: 3501968 (1970-03-01), Fredell
Barrett William J.
Meyer Hal G.
Barber-Colman Company
Broome Harold
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