Patents Assigned to Hatlapa Uetersener Maschinenfabrik GmbH
  • Patent number: 4169580
    Abstract: An electrically powered hydraulic winch has a main support containing a transmission connected on one side to a winch drum and connected on its other side to the output shaft of a hydraulic motor contained in a drive housing releasably bolted to the side of the support. A motor housing is fixed to the bottom of the drive housing and forms a fluidtight compartment containing a drive unit formed of an electric motor and a hydraulic pump, which latter is connected via a control unit in the drive housing to the hydraulic motor. A reservoir in the drive housing above the compartment maintains this compartment completely full of hydraulic fluid that is also used in the drive circuit between the hydraulic pump and motor.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: October 2, 1979
    Assignee: Hatlapa Uetersener Maschinenfabrik GmbH
    Inventors: Rolf Hatlapa, Bernd Horn