Patents by Inventor John Liebl

John Liebl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7758104
    Abstract: A construction vehicle door assembly includes a frame member having an inside surface and an outside surface, a window pane is positioned proximate one of the inside surface and outside surface, and a first resilient member substantially vibrationally isolates the frame member and the window pane. A fastener extends through the frame member, window pane and first resilient member to couple the window pane to the frame member. A second resilient member substantially vibrationally isolates the window pane and the fastener. A pair of hinges are coupled to the frame member, a pair of hinge pins are selectively extended into the respective one of the pair of hinges, and a lever is coupled to the pair of hinge pins for moving the pair of hinge pins relative to the pair on hinges upon movement of the lever, to detach the door assembly from the vehicle.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: July 20, 2010
    Assignee: Clark Equipment Company
    Inventors: John Liebl, Jeff Percival, Mike Vought, Amardeep Chauhan, Anthony Miller
  • Publication number: 20090199751
    Abstract: A tree spade assembly for excavating and implanting a tree ball. The tree spade assembly includes a circular mainframe defining a vertically oriented central axis, a post coupled to the mainframe and defining a post axis at an acute angle with respect to the central axis, a slider movably coupled to the post for sliding along the post axis, and a blade coupled to the slider. The blade includes a reinforcing feature extending the length of the blade substantially parallel to the post axis. The reinforcing feature defines a recessed channel in an outer surface of the blade and a rib on an inner surface of the blade that positions a tip of the blade inward from the outer contour of the blade.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Inventor: John Liebl
  • Publication number: 20080191514
    Abstract: A construction vehicle door assembly includes a frame member having an inside surface and an outside surface, a window pane is positioned proximate one of the inside surface and outside surface, and a first resilient member substantially vibrationally isolates the frame member and the window pane. A fastener extends through the frame member, window pane and first resilient member to couple the window pane to the frame member. A second resilient member substantially vibrationally isolates the window pane and the fastener. A pair of hinges are coupled to the frame member, a pair of hinge pins are selectively extended into the respective one of the pair of hinges, and a lever is coupled to the pair of hinge pins for moving the pair of hinge pins relative to the pair on hinges upon movement of the lever, to detach the door assembly from the vehicle.
    Type: Application
    Filed: January 7, 2008
    Publication date: August 14, 2008
    Applicant: CLARK EQUIPMENT COMPANY
    Inventors: John Liebl, Jeff Percival, Mike Vought, Amardeep Chauhan, Anthony Miller