Patents by Inventor Gerhard Sandhof

Gerhard Sandhof 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).

  • Honing tool and method for the surface machining of bore walls
    Patent number: 5085014
    Abstract: A honing tool is used for the surface machining of the cylinder working surfaces of cylinder bores of an internal combustion engine. In order to obtain a uniform plateau texture over the entire surface of the cylinder bore, working elements are provided which can be brought to bear under radial pressure against the bore wall. The working elements are designed as honing rings, which are mounted in the tool like piston rings. The honing rings are arranged roughly coaxially to the longitudinal axis of the honing tool.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: February 4, 1992
    Assignee: Maschinenfabrik Gehring GmbH & Co.
    Inventor: Gerhard Sandhof
  • Method and tool for machining the surfaces of workpieces
    Patent number: 4980996
    Abstract: A method and tool for machining the surfaces of workpieces. The surface is finished by honing high pressure fluid jetting, and brushing. The tool used in this connection is provided with at least one tool element, such as a honing bar and/or a brush bar, and at least one spray or jetting mechanism.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: January 1, 1991
    Assignee: Maschinenfabrik Gehring Gesellschaft mit beschrankter Haftung & Co. Kommanditgesellschaft
    Inventors: Ulrich Klink, Gerhard Sandhof