Intercalatd graphite gaskets and pressure seals
AssigneeIntercal Company
InventorFerdinand L. Vogel
Life of this patent
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Abstract
A gasket or other sealing member containing intercalated graphite exhibits improved strength and safety properties and simplified manufacture. Such a gasket may be formed by filling a mold of the appropriate shape with intercalated graphite powder and applying sufficient pressure and heat to produce a coherent mass. The properties of an intercalated graphite gasket may be further improved by incorporating metal reinforcement, metal powders, organic polymers ceramic powders or even exfoliated graphite into the intercalated graphite gasket.
Claims26
A sealing member comprising a compacted body formed from an intercalated graphite powder which is stable in air and at elevated temperature, said body being essentially free of separately added copper, nickel, silver, molybdenum or tungsten metal powder.
A sealing member comprising a compacted body formed from particles of a graphite material wherein the particles are partly exfoliated and partly intercalated.
A sealing member formed by compacting intercalated graphite particles at a pressure of greater than 1000 pounds per square inch and a temperature of from about 20.degree. C. to about 1000.degree. C.
Dependencies are inferred from the claim text.