Patents Assigned to Tenneca Inc.
  • Patent number: 10634251
    Abstract: An improved multi-layer gasket assembly is provided. The gasket assembly includes a plurality of metal gasket layers which have at least one set of axially aligned openings. The plurality of layers includes at least two functional layers, at least one distance layer and at least one stopper layer. Each of the functional layers has at least one embossment bead that is spaced radially from the openings, and the distance and stopper layers are sandwiched between the functional layers. At least one of the stopper and the distance layer has a polymeric coating applied to at least a portion of an exterior surface thereof, and the stopper and distance layers are laser welded together through the polymeric coating.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 28, 2020
    Assignee: Tenneca Inc.
    Inventors: Tae Kim, Steven Kueltzo, Rich Larson, Wilford Dean Virgin