Patents Assigned to Hydra-Powr, Inc.
  • Hydraulic wheelchair
    Patent number: 5158150
    Abstract: A hydraulic system for powering a vehicle for human transporation. The output of a hydraulic pump is connected to at least one hydraulic motor by a hydraulic circuit, the motor(s) being mechanically connected to drive the vehicle. The hydraulic circuit establishes the direction of fluid flow through the motor(s). The pressure drop across at least a portion of the hydraulic circuit is monitored and the flow of fluid to the circuit is regulated accordingly.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: October 27, 1992
    Assignee: Hydra-Powr, Inc.
    Inventors: Stanley C. Askeland, Constantine Kosarzecki