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Mobile system for microwave removal of concrete surfaces

United States Patent

*** EXPIRED ***
5,635,143
June 3, 1997
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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.
White; Terry L. (Oak Ridge, TN), Bigelow; Timothy S. (Knoxville, TN), Schaich; Charles R. (Lenoir City, TN), Foster, Jr.; Don (Knoxville, TN)
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
08/ 316,020
September 30, 1994
This invention was made with Government support under contract DE-AC05-840R21400 awarded by the U.S. Department of Energy to Martin Marietta Energy Systems, Inc. and the Government has certain rights in the invention.