Patents by Inventor Ram Vittal

Ram Vittal 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).

  • Conical hub bearing for scroll machine
    Patent number: 6179591
    Abstract: A scroll compressor has an orbiting scroll which has an end plate with a hub extending generally perpendicular from the end plate. The hub defines a bore within which a bearing is press fit. The machining of the bore in the hub is done in a conical manner to accommodate and compensate for the unequal distortion of the hub between the two ends of the hub. The conical shape and the unequal distortion provide an assembled bearing with a more cylindrically shaped inner surface.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: January 30, 2001
    Assignee: Copeland Corporation
    Inventors: Harry Clendenin, James E. Gundermann, Ram Vittal