Tripping device with burning prevention switch

Details Tripping device with burning prevention switch Tripping device with burning prevention switch

1988-10-19

1990-07-31

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Combined with diverse-type art device

335132, H01F 100

Patent

active

049453297

ABSTRACT:
A tripping device with burning prevention switch has a electromagnet 10 and a burning prevention switch 14 both of which are cased in each separate insulating bodies. The electromagnet 10 and the burning prevention switch 14 are combined by engagement of projections 15, 16, provided on the burning prevention switch 14 and a hollow 12 and a hole 13, respectively, that are provided on the electromagnet 10.

REFERENCES:
patent: 2540466 (1951-02-01), Welch
patent: 3949333 (1976-04-01), Freitag et al.
patent: 4254392 (1981-03-01), Prohaska et al.
patent: 4345225 (1982-08-01), Lemmer

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