Switch with improved contacts for use in high temperature enviro

Details Switch with improved contacts for use in high temperature enviro Switch with improved contacts for use in high temperature enviro

1995-04-12

1996-03-05

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Polarity-responsive

335128, 200265, H01H 5122

Patent

active

054971330

ABSTRACT:
A switch is made for use in elevated temperatures. A first stationary contact carrier is made of stainless steel and configured to be rigidly attached to a first stationary contact pad that is made of a nickel silver alloy. A second stationary contact pad of fine silver is used as the normally opened contact. A movable contact pad made of a silver cadmium oxide alloy is movable from a first position in contact with the normally closed first contact pad to a second position in contact with the normally opened second stationary contact pad.

REFERENCES:
patent: 3977747 (1976-08-01), Broutros
patent: 4408173 (1983-10-01), Adlerteg et al.
patent: 4706383 (1987-11-01), Saffari
patent: 5334811 (1994-08-01), Burgener et al.

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