Patents by Inventor Charles R. Schaich

Charles R. Schaich 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).

  • Mobile system for microwave removal of concrete surfaces
    Patent number: 5635143
    Abstract: A method and apparatus for the microwave removal of contaminated concrete surfaces. The apparatus comprises a housing adapted to pass over a support surface. The housing includes a waveguide for directing microwave energy to the surface at an angle maximizing absorption of microwave energy by the surface. The apparatus is further provided with a source of microwave energy operably associated with the waveguide, wherein the microwave energy has a frequency of between about 10.6 GHz and about 24 GHz and acts to remove the uppermost layer from the surface. The apparatus further includes a debris containment assembly comprising a vacuum assembly operably associated with the housing. The vacuum assembly is adapted to remove debris from the area adjacent the surface.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: June 3, 1997
    Assignee: Martin Marietta Energy Systems, Inc.
    Inventors: Terry L. White, Timothy S. Bigelow, Charles R. Schaich, Don Foster, Jr.