Patents by Inventor John L. Pantzke

John L. Pantzke 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).

  • Articulated aerial device including an upper boom compensation unit
    Patent number: 6810993
    Abstract: An aerial lift apparatus unit includes at least a lower boom pivotally interconnected to a transport unit for raising and lowering of the lower boom. An upper boom is pivotally connected to the outer end of the lower boom for raising and lowering of the upper boom with respect to the lower boom. A single integrated lifting and compensating cylinder unit includes an elongated cylinder with a piston and piston rod journaled in the one end and operable to extend outwardly therefrom. The cylinder defines a dual operating cylinder with a base end from which the piston rod extends and an inner base end extending from the base end and defining an upper boom/compensating unit. A hydraulic control system includes a first hydraulic gated control system for raising and positioning of the upper boom relative to the lower boom.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: November 2, 2004
    Assignee: Terex-Telelect, Inc.
    Inventors: Jon M. Promersberger, Robert F. Ryan, John L. Pantzke
  • Articulated aerial device including an upper boom/compensation unit
    Publication number: 20040016596
    Abstract: An aerial lift apparatus unit includes at least a lower boom pivotally interconnected to a transport unit for raising and lowering of the lower boom. An upper boom is pivotally connected to the outer end of the lower boom for raising and lowering of the upper boom with respect to the lower boom. A single integrated lifting and compensating cylinder unit includes an elongated cylinder with a piston and piston rod journaled in the one end and operable to extend outwardly therefrom. The cylinder defines a dual operating cylinder with a base end from which the piston rod extends and an inner base end extending from the base end and defining an upper boom/compensating unit. A hydraulic control system includes a first hydraulic gated control system for raising and positioning of the upper boom relative to the lower boom.
    Type: Application
    Filed: July 29, 2002
    Publication date: January 29, 2004
    Inventors: Jon M. Promersberger, Robert F. Ryan, John L. Pantzke