Patents by Inventor Philip D. Cady

Philip D. Cady 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).

  • Process for impregnating concrete with polymers
    Patent number: 4109033
    Abstract: A process for drying concrete to the appropriate moisture content for proper impregnation of the concrete with a polymer or a monomer for in situ polymerization. This is accomplished by heating the concrete until its temperature at the desired depth of polymer penetration is at least about 230.degree. F. In another embodiment of the invention the dried concrete is impregnated with a monomer composition capable of polymerization and is polymerized within the concrete.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: August 22, 1978
    Inventors: Paul R. Blankenhorn, Philip D. Cady, Donald E. Kline, Richard E. Weyers