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US 5,015,176 AGranted
Method of making a ceramic coated microfuse
AssigneeCooper Industries, Inc.
InventorLeon Gurevich
Life of this patent
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Abstract
A ceramic coating for a subminiature fuse includes sodium silicate and silicon dioxide applied over a subminiature fuse wire in slurry form. The coating gives the fuse arc quenching properties.
Claims2
A method of curing a ceramic coated miniature fuse, comprising the steps of:
- placing a fusing subassembly with a solidified and dried coating of ceramic thereon in an oven;
- heating the subassemblies to drive off the water therein by elevating the temperature in the oven in a series of curing steps at different curing temperatures;
- and
- changing the temperature from a lower to a higher temperature at a rate of not more than 30.degree. per hour.
1 more element
Dependencies are inferred from the claim text.