Patents by Inventor William E. Gurwell

William E. Gurwell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of forming a composite by infiltrating a porous preform
    Patent number: 4033400
    Abstract: A biskeletal composite is created by forming a skeletal host body of reaction bonded silicon nitride, heating an infiltrant material, and applying pressure to such infiltrant to thereby force such infiltrant into the void volume of the porous host body. In one aspect of the method, the application of pressure is done rapidly to impart desirable characteristics to the composite.
    Type: Grant
    Filed: April 3, 1974
    Date of Patent: July 5, 1977
    Assignee: Eaton Corporation
    Inventors: William E. Gurwell, Amos J. Shaler