Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Patent
1993-09-27
1995-10-03
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
338 21, 252519, 264 60, H01C 710
Patent
active
054555540
ABSTRACT:
A composition for an insulating collar of a metal oxide varistor, with the composition being applied as a slurry to a green varistor in an unfired state along its periphery for enhancing the varistor's energy handling capability in a fired state, the composition having, in various combinations, a plurality of oxide compounds, including manganese dioxide, cobaltic-cobaltous oxide, nickel oxide, tin dioxide, chromic oxide, bismuth oxide, antimony trioxide, and zinc oxide. Moreover, a method of applying the slurry onto the unfired varistor and firing the coated green varistor in a single step.
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Cuthbertson Sherri J.
Daharsh Ross S.
Gauger Gary A.
Kester Jeffrey J.
Olen Robert C.
Cooper Industries Inc.
Lateef Marvin M.
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