Patents by Inventor Samuel H. Coes

Samuel H. Coes 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).

  • Gas tight silicon carbide body
    Patent number: 4070197
    Abstract: A gas impermeable hollow silicon carbide body is formed by slip-casting two separate hollow silicon carbide bodies, the two separate bodies are then cemented together by means of a silicon carbide slip and then the joined pieces are fired at a temperature sufficiently elevated to recrystallize the cast bodies and to form a recrystallized joint between the two pieces, thereafter the body is subjected to a silicon atmosphere to deposit sufficient additional silicon in the body to provide a structure which is essentially impermeable to gases.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: January 24, 1978
    Assignee: Norton Company
    Inventor: Samuel H. Coes
  • Silicon carbide diffusion furnace components
    Patent number: 3951587
    Abstract: Process tube, paddle, and boat for a semi-conductor diffusion furnace composed of a matrix of high purity sintered silicon carbide which is made impervious to gases by impregnation thereof with silicon metal which is 99.9% pure. The process tube, paddle and boat provide the ultra pure environment needed for semi-conductor production and are highly resistant to the degradative effect of a great number of high temperature heating cycles.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: April 20, 1976
    Assignee: Norton Company
    Inventors: Richard A. Alliegro, Samuel H. Coes