Patents Assigned to Wolfgang Rohr GmbH & Co. KG
  • Hook-on grab bucket, in particular motor-driven underwater grab bucket
    Patent number: 7207127
    Abstract: A grab bucket, in particular motor-driven underwater grab bucket, has first and second half-scoops. The scoops can be moved relative to on another from an open position into a closed position by a hydraulic cylinder. The opening angle of the half-scoops is monitored by a sensor which is connected to a control and monitoring device. The sensor is integrated in the hydraulic cylinder and generates an actuating-travel signal which corresponds to the actuating travel of the hydraulic cylinder.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: April 24, 2007
    Assignee: Wolfgang Rohr GmbH & Co. KG
    Inventor: Wolfgang Rohr