Voltage responsive switches and methods of making

Details Voltage responsive switches and methods of making Voltage responsive switches and methods of making

1975-03-03

1976-08-24

Esposito, Michael F.

Coating processes

Electrical product produced

427101, 427102, 427216, 427399, 427383, 427385, 427386, B05D 700, B05D 512

Patent

active

039768112

ABSTRACT:
A method of making a voltage sensitive switch characterized by an irreversible change in resistance from a high resistance state greater than one megohm to a low resistance state less than approximately one hundred ohms is described as comprising heating substantially pure grade copper in an oxidizing environment for a sufficient time to oxidize the outer surface of the copper powder, mixing the oxidized copper powder with a binder and applying the mixture to a pair of spaced electrodes.

REFERENCES:
patent: 2720573 (1955-10-01), Lundquist
patent: 2993815 (1961-07-01), Triptow
patent: 3647532 (1972-03-01), Friedman
patent: 3776769 (1973-12-01), Buck
patent: 3787965 (1974-01-01), Cocca

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