Patents by Inventor Barry M. Warner

Barry M. Warner 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).

  • Lift trucks and extensible mast structures therefor
    Patent number: 5330032
    Abstract: An extensible mast structure having a fixed mast section and at least one movable mast section mounted on the fixed mast section. A load carrying carriage mounted on the movable mast section for vertical movement relative to the movable mast section. A primary jack connected to the movable mast section for moving the load carrying carriage and a secondary jack connected to the fixed mast section for moving the movable mast section to extend the mast structure. The relative operational cross-sectional areas of the primary jack and the secondary jack are selected to sequence movement of the primary jack to move the load carrying carriage before the secondary jack moves the movable mast section.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: July 19, 1994
    Assignee: Linde Aktiengesellschaft
    Inventor: Barry M. Warner