Motor protector apparatus

Details Motor protector apparatus Motor protector apparatus

1974-09-05

1976-12-07

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

200243, 337 89, 337347, H01H 3752, H01H 3728

Patent

active

039965473

ABSTRACT:
A low cost multiphase motor protector which employs only one movable contact attached to the center of a bimetallic snap-acting disc. After the disc is calibrated and upon the application or dissipation of heat, the one movable contact either connects or disconnects with a plurality of stationary contact terminals simultaneously.

REFERENCES:
patent: 2406719 (1946-08-01), Upson
patent: 2721913 (1955-10-01), Kent, Jr.
patent: 2753421 (1956-07-01), Mertler
patent: 2769048 (1956-10-01), Harrold
patent: 2811611 (1957-10-01), Odenwald
patent: 2996590 (1961-08-01), Shockroo et al.
patent: 3452313 (1969-06-01), Perry
patent: 3470513 (1969-09-01), Shockroo et al.
patent: 3577111 (1971-05-01), Nardulli
patent: 3600528 (1971-08-01), Leposavic

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