Patents by Inventor Slater William Hawes

Slater William Hawes 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).

  • Catalytic converter substrate with a plurality of cell groups having high and low thermal mass walls
    Patent number: 5753339
    Abstract: A catalytic converter substrate comprising: a plurality of cell groups, each cell group comprising a plurality of air-flow cells extending axially through the substrate, each cell group comprising a first set of walls defining a radially outer periphery thereof and a second set of walls suspended by the first set of walls partitioning the individual air-flow cells from each other, wherein the first set of walls has a first effective thermal mass and the second set of walls has a second effective thermal mass, wherein the first effective thermal mass is greater than the second effective thermal mass.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: May 19, 1998
    Assignee: General Motors Corporation
    Inventor: Slater William Hawes