Patents Assigned to Wittke Inc.
  • Patent number: 6854949
    Abstract: A refuse collection vehicle having a vehicle chassis including a vehicle cab and frame with a vehicle body mounted on top of the frame. The vehicle body has a front receiving hopper separated from a rear storage compartment by means of a partition having an aperture for passage of refuse. A pendular packing device having a refuse engaging face is pivotally mounted within the receiving hopper and arcuately swings to rapidly transfer refuse through the aperture. In order to empty the storage compartment, a rear door is opened to permit egress of refuse and the partition moves longitudinally along the vehicle body to displace refuse out of the storage compartment.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: February 15, 2005
    Assignee: Wittke Inc.
    Inventor: Simon Huang
  • Patent number: 6821074
    Abstract: An automated container loader for mounting to the side of a vehicle adapted for collecting the contents of curbside residential waste containers. The vehicle has a vehicle body longitudinally attached to the vehicle chassis. The automated container loader is attached to the vehicle chassis by a slide and positioned adjacent the side of the vehicle body. The container loader is equipped with a lift arm having a gripping element having a gripper housing having an opposing pair of gripping jaws. The gripping jaws are pivotally attached to the gripper housing on opposite sides to their respective arms, thereby creating a cross-pivoting arrangement. The distance between the free ends of the gripping jaws is thereby reduced when in the open position. The cross-pivoting arrangement further allows the container loader to have a thin overall width, accomplished through use of a non-folding single-section gripping jaw.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: November 23, 2004
    Assignee: Wittke Inc.
    Inventors: Lynn Donald Schreiber, Simon Huang
  • Patent number: 6435802
    Abstract: A manual side loading refuse vehicle has a plurality of refuse storage compartments and an equal number of hopper compartments divided by means of a slide separator attached to a pack blade which moves together with said pack blade to compact the refuse. The wall dividing the refuse storage compartments is vertically and rearwardly tapered. A rear hinged door is provided for each refuse storage compartment. The door is unlatched and opened by means of a directional movement of a hydraulic cylinder and closes and latches by means of movement of the hydraulic cylinder in the opposite direction.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: August 20, 2002
    Assignee: Wittke Inc.
    Inventors: Lynn Donald Schreiber, Harvey James Aasman, Simon Huang