Patents Represented by Attorney Earl E. Larcher

Find this attorney in the Justia Lawyer Directory

  • High strength graphite and method for preparing same
    Patent number: 3993738
    Abstract: High strength graphite is manufactured from a mixture of a particulate filler prepared by treating a particulate carbon precursor at a temperature in the range of about 400.degree. to 1000.degree. C., an organic carbonizable binder, and green carbonizable fibers in a concentration of not more than 2 weight per cent of the filler. The use of the relatively small quantity of green fibers provides a substantial increase in the flexural strength of the graphite with only a relatively negligible increase in the modulus of elasticity.
    Type: Grant
    Filed: November 8, 1973
    Date of Patent: November 23, 1976
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Lyle G. Overholser, David R. Masters, John M. Napier