Surge absorber

Details Surge absorber Surge absorber

1987-02-20

1988-02-23

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338300, 338315, 338272, 338234, H01C 710

Patent

active

047273500

ABSTRACT:
A surge absorber in which an electrically conductive thin film is vaporized on the surface of a ceramic circular cylinder, a micro.groove is trimmed using a laser beam to define a spiral locus on the surface, and a linear.groove is trimmed to intersect the micro.groove to divide the thin film into a plurality of segments, so that overvoltages applied across the two electrodes can be absorbed.

REFERENCES:
patent: 1595737 (1935-03-01), Everett
patent: 4410831 (1983-10-01), Shigemori et al.
patent: 4451815 (1984-05-01), Sakshaug
patent: 4504766 (1985-03-01), Kaneko
patent: 4542365 (1985-09-01), McTavish et al.

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