Patents by Inventor Alfred G. Sanford

Alfred G. Sanford 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).

  • Method for repairing or preventing faulting on concrete highways
    Patent number: 4470719
    Abstract: A method is provided for repairing or preventing the faulting phenomenon in unreinforced concrete highways. Flowable, foamable, curable compositions are injected into the transverse joint between concrete slabs to fill any voids that exist between or under the slabs, and to fix loose incompressible "fines" which are forced beneath the slabs.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: September 11, 1984
    Assignee: General Electric Company
    Inventors: John J. Dziark, Robert L. Nelson, Alfred G. Sanford