Patents by Inventor Rob Lehmann

Rob Lehmann 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).

  • Patent number: 5558344
    Abstract: A joint for mating exhaust pipes includes an exhaust pipe flange gasket with a metallic body having a planar portion extending laterally inwardly from an outer edge of the body, the planar portion having at least one bolt hole, and a shielding grommet integrally connected to an inner edge of the planar portion. The shielding grommet defines an outer periphery of an aperture, and a sealing element is retained within the grommet. The gasket is disposed between two mating exhaust pipes each pipe having a flange with an aperture and a planar clamping face, at least one of the flanges including a recess adjacent the clamping face. The planar portion of the gasket is disposed between the faces such that when the apertures of the members are aligned with the bolt hole, the shielding grommet is received in the recess.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 24, 1996
    Assignee: Dana Corporation
    Inventors: Michael J. Kestly, Rob Lehmann