Patents by Inventor Donald E. Lorenz

Donald E. Lorenz 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: 7225520
    Abstract: A cutting edge cart is disclosed that provides an improved means for replacing the replaceable cutting edges on bladed equipment such as road graders and snow plow. The cart allows a single user to retrieve, transport, and position a replacement cutting edge relative to a mold board of the bladed equipment. Generally, the cart contains a frame, two or more transport assemblies attached to the frame, such as wheels, a movable carrier assembly that contains a cutting edge support assembly, and an adjuster. The adjuster is operable to move the carrier assembly between first and second positions relative to the frame allowing the vertical position of a supported cutting edge to be adjusted. The frame and transport assemblies are disposed such that the cart may be rotated or pivoted from a first generally vertical position to a second generally horizontal position.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: June 5, 2007
    Assignee: Blade Lift, Inc.
    Inventors: Donald E. Lorenz, Donald W. Quam
  • Patent number: 6964092
    Abstract: A cutting edge cart is disclosed that provides an improved means for replacing the replaceable cutting edges on bladed equipment such as road graders and snow plow. The cart allows a single user to retrieve, transport, and position a replacement cutting edge relative to a mold board of the bladed equipment. Generally, the cart contains a frame, two or more transport assemblies attached to the frame, such as wheels, a movable carrier assembly that contains a cutting edge support assembly, and an adjuster. The adjuster is operable to move the carrier assembly between first and second positions relative to the frame allowing the vertical position of a supported cutting edge to be adjusted. The frame and transport assemblies are disposed such that the cart may be rotated or pivoted from a first generally vertical position to a second generally horizontal position.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: November 15, 2005
    Assignee: Blade Lift, Inc.
    Inventors: Donald E. Lorenz, Donald W. Quam