Patents by Inventor Michel A. Grebert

Michel A. Grebert 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).

  • Fluid seal
    Patent number: 4155557
    Abstract: An annular seal having first and second annular end faces extending substantially perpendicular to the axis of symmetry of the seal, said annular end faces being connected to each other by two axially extending surfaces each having the same axis of symmetry as the seal, one of said axially extending surfaces defining at least in part the surface of a lobe having a summit region, and at least a first of said annular end faces being shaped to define an annular recess.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: May 22, 1979
    Assignee: Dunlop Limited
    Inventor: Michel A. Grebert