Patents by Inventor John R. Lovett

John R. Lovett 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).

  • Self-aligning roller for belt conveyors
    Patent number: 4196803
    Abstract: A roller mounted for universal angular movement relatively to its nominal longitudinal axis of rotation so as to be angularly displaced by the weight and movement of the conveyor belt when the conveyor belt shifts away from running true. This angular displacement brings the rotating roller into engagement with reaction faces provided on the frame of the conveyor and causes the roller to be reactively displaced in a direction to restore the belt to running true.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: April 8, 1980
    Inventor: John R. Lovett