Patents by Inventor Ian R. Levin

Ian R. Levin 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: 6616146
    Abstract: A radial seal arrangement for sealingly engaging an outer surface of a shaft is provided. The radial seal arrangement includes a support member that has a first leg with an outer surface that extends substantially perpendicular to a reference axis. The support member also includes a second leg that extends substantially parallel to the reference axis from the first leg to a first end. The radial seal arrangement further includes a body portion that includes an outer peripheral surface extending substantially parallel to the reference axis from the first leg to a point past the first end of the second leg, a first radial face having a relief notch and extending substantially coplanar to the outer surface of the first leg, a first sealing portion having a first chamfered surface extending from the first radial face to a first lip, and a second sealing portion separated from the first sealing portion by a first recessed area and separated from the outer peripheral surface by a second recessed area.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: September 9, 2003
    Assignee: Caterpillar Inc
    Inventors: Anthony D. Friend, Ian R. Levin
  • Publication number: 20030102634
    Abstract: A radial seal arrangement for sealingly engaging an outer surface of a shaft is provided. The radial seal arrangement includes a support member that has a first leg with an outer surface that extends substantially perpendicular to a reference axis. The support member also includes a second leg that extends substantially parallel to the reference axis from the first leg to a first end. The radial seal arrangement further includes a body portion that includes an outer peripheral surface extending substantially parallel to the reference axis from the first leg to a point past the first end of the second leg, a first radial face having a relief notch and extending substantially coplanar to the outer surface of the first leg, a first sealing portion having a first chamfered surface extending from the first radial face to a first lip, and a second sealing portion separated from the first sealing portion by a first recessed area and separated from the outer peripheral surface by a second recessed area.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Applicant: Caterpillar Inc.
    Inventors: Anthony D. Friend, Ian R. Levin