Patents Represented by Attorney W. E. Johnson

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  • Method of making a silicon carbide article of less than full density
    Patent number: 3947550
    Abstract: This disclosure teaches a method of making a silicon carbide article of less than full density. A mixture of silicon carbide particles, silicon particles and a thermosetting polymeric material are molded to form an article as a green body. The green body is pyrolyzed to change the polymer into carbon and the carbon is then changed into silicon carbide by the silicon contained in the mixture.
    Type: Grant
    Filed: August 20, 1973
    Date of Patent: March 30, 1976
    Assignee: Ford Motor Company
    Inventor: Douglas R. Fitchmun