Transformer/switch device

Details Transformer/switch device Transformer/switch device

1976-08-16

1978-06-13

Schaefer, Robert K.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

361210, 335268, H01H 4300

Patent

active

040951243

ABSTRACT:
An electrical device in which a transformer and switch are cooperatively integrated, the magnetic field of an energized primary winding of the transformer performing the dual function of (1) energizing a magnetically coupled secondary winding to generate an induced voltage to power associated circuitry, and (2) determining the state of the switch. The associated circuitry may be control circuitry for controlling energization of a primary winding, or for changing the path or presence of the magnetic flux created by the energized primary winding electromagnetic field; or it may perform general functions such as indicating the state of energization of a primary winding, or of the state of the responsive switch or associated devices.

REFERENCES:
patent: 2801374 (1957-07-01), Svala
patent: 3662186 (1972-05-01), Karklys
patent: 3689806 (1972-09-01), Saita
patent: 3774056 (1973-11-01), Sample et al.
patent: 3790815 (1974-05-01), Karklys
patent: 3826955 (1974-07-01), Fest

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