Metal working – Method of mechanical manufacture – Electrical device making
Patent
1980-12-12
1982-05-04
Gilden, Leon
Metal working
Method of mechanical manufacture
Electrical device making
219528, 29620, H05B 300
Patent
active
043274803
ABSTRACT:
The method of manufacturing, composition and product described herein utilize highly electrically resistive carbon black alone or with low resistivity carbon black to form a self-limiting electrically resistive semi-conductor which presents a positive temperature co-efficient of resistance, the methods which are described providing significantly shortened anneal times, manufacturing ease and reliability.
REFERENCES:
patent: 3412358 (1968-11-01), Hummal et al.
patent: 3435401 (1969-03-01), Epstein
patent: 3793716 (1974-02-01), Smith-Johannsen
patent: 3823217 (1974-07-01), Kampe
patent: 3861021 (1975-01-01), Smith-Johannsen
patent: 3900654 (1975-08-01), Stinger
patent: 3914363 (1975-10-01), Bedard et al.
patent: 4169816 (1979-10-01), Tsion
patent: 4177446 (1979-12-01), Diaz
Ensign-Bickford Industries, Inc.
Gilden Leon
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