Patents Assigned to Erich Feldhaus
  • Patent number: 7931108
    Abstract: Exemplary apparatus and system for repositioning a semi-trailer are described. The repositoner may comprise two pivoting arms, each comprising a mechanical actuator attached to an underside area of the semi-trailer, wherein the pivoting arms are disposed substantially parallel to the underside of the semi-trailer in a first position and are configured to be pivoted away from the semi-trailer in a second position substantially perpendicular to the underside of the semi-trailer; two wheels mounted at an angle from a rear plane of the semi-trailer such that the semi-trailer moves in a circular path when the wheels turn, with each wheel operatively coupled to a motor; and a lower frame mounted to the mechanical actuators of the arms, the lower frame comprising two opposing wheel housing couple to the wheels; wherein, lowering the hydraulic jack arms can hydraulically lift the semi-trailer, and further wherein the wheels can maneuver the semi-trailer.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: April 26, 2011
    Assignee: Erich Feldhaus
    Inventor: Erich Hadden Feldhaus