Patents Assigned to Peter Redvers Thorburn
  • Hopper
    Patent number: 4740130
    Abstract: A bottom discharge hopper the body of which is elevated at a tip by ramps so that doors on the underside of the body, which are secured thereto by links and which are pivotally fixed to upstanding structure on the chassis, open outwardly and downwardly to permit material discharge from the body.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: April 26, 1988
    Assignee: Peter Redvers Thorburn
    Inventor: Petrus D. Prins