Patents by Inventor Bernard Liebowitz

Bernard Liebowitz 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).

  • Continuously operating sedimentation tank with pier supported rake structure
    Patent number: 3959151
    Abstract: Continuously operating sedimentation tank with center pier supported rake structure rotated by a drive head featuring an improved hydrostatic bearing, of compact construction wherein the bull gear is shaped to conform to an improved arrangement of vertical load supporting hydrostatic bearing faces, and radial hydrostatic bearing faces, wherein the base structure of the drive head is a unitary casting embodying an annular reservoir for collecting the hydrostatically spent operating oil, together with improved torque transmitting and weight supporting connecting means between the bull gear and the surrounding top end portion of the vertical cage portion of the rake structure.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: May 25, 1976
    Assignee: Dorr-Oliver Incorporated
    Inventor: Bernard Liebowitz