Patents by Inventor Calvin Schomburg

Calvin Schomburg 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).

  • High temperature silicon carbide impregnated insulating fabrics
    Patent number: 4373003
    Abstract: High temperature insulating articles are provided having improved performance characteristics. The articles comprise fabrics of closely woven refractory or heat resistant fibers having particles of silicon carbide dispersed at least partially through the fabric and bonded to the fibers with an emulsifiable polyethylene wax. Such articles exhibit significantly increased high temperature emittance characteristics and an improved retention of integrity and flexibility after prolonged exposure to high temperature.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: February 8, 1983
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Calvin Schomburg, Robert L. Dotts
  • Method of repairing surface damage to porous refractory substrates
    Patent number: 4358480
    Abstract: A method of repairing damage to a porous refractory material coated with a glass coating (16) comprising applying hydrolyzed tetraethyl orthosilicate to the damaged area, curing said tetraethyl orthosilicate, applying to said damaged area a pliable filler (30) comprised of hydrolyzed tetraethyl orthosilicate and powdered refractory substrate (11) and heating the damaged area to cure filler (30).
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: November 9, 1982
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Glenn M. Ecord, Calvin Schomburg
  • Densification of porous refractory substrates
    Patent number: 4358486
    Abstract: A hydrolyzed tetraethyl orthosilicate is applied to the surface of a porous refractory substrate following which the substrate is heated to a temperature and for a period of time sufficient to bond the silica released from the tetraethyl orthosilicate to the substrate thereby densifying and strengthening the surface.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: November 9, 1982
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Glenn M. Ecord, Calvin Schomburg