Patents by Inventor Mark W. Garnett

Mark W. Garnett 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: 6471211
    Abstract: An improved unitized bearing seal assembly employs a resilient primary seal lip, a secondary seal lip and an excluder lip carried by a first seal case. The seal lips contact surfaces of a second seal case. One of the seal cases rotates relative to the other. The bearing seal assembly also includes a labyrinth seal positioned radially inboard of the resilient seal lips. The labyrinth seal has two axially-extending gaps. One of the axially extending gaps is defined by a resilient axial lip. The two axial gaps are joined by a radial gap. One of the surfaces defining the radial gap comprises chaplets with recessed surfaces between the chaplets. The chaplets include radially directed surfaces and inclined surfaces joining the radially directed surfaces with the recessed surfaces. These surfaces are shaped to provide hydrodynamic pumping action. A lubricant cavity is located between the labyrinth seal and the primary seal lip.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: October 29, 2002
    Assignee: Brenco, Incorporated
    Inventors: Mark W. Garnett, Danny R. Sink