Patents by Inventor Michael R. Sleeter

Michael R. Sleeter 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).

  • Pipe testing machine with clamping pressure keyed to hydrostatic test pressure
    Patent number: 4211107
    Abstract: A pipe testing machine wherein clamping pressure on the ends of a plastic pipe being tested under internal water pressure is maintained proportional to the internal pressure so as not to crush the ends of the pipe.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: July 8, 1980
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Michael R. Sleeter, James C. Dehring