Motor safety switch

Details Motor safety switch Motor safety switch

1985-12-16

1987-08-18

Grimley, Arthur T.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Plural independently operable switches

335 6, 335120, 335132, 335198, 337 6, H01H 900

Patent

active

046880119

ABSTRACT:
A motor safety switch which eliminates much of the costs of conventional wiring, material and labor, the motor safety switch being formed of a plurality of assembled independent components; a first of the components including a switch unit having a contact system, a thermal tripper and a magnetic tripper; a second of the components being an electromagnetic drive unit; a third of the components being a modular contact unit; and the independent components are maintained by mechanical connectors in selected assembled relationship to include either all of the aforementioned independent components or selective subassemblies thereof.

REFERENCES:
patent: 3638157 (1972-01-01), Kruzic
patent: 4090156 (1978-04-01), Gryctko
patent: 4181906 (1980-01-01), Matsko et al.
patent: 4184134 (1980-01-01), Kane et al.
patent: 4300110 (1981-11-01), Bayer et al.
patent: 4307358 (1981-12-01), Haury et al.
patent: 4345225 (1982-08-01), Lemmer
patent: 4470028 (1984-09-01), Vayre et al.

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