Patents by Inventor Walter D. Hall

Walter D. Hall 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).

  • Publication number: 20110308889
    Abstract: A lift truck that includes a motorized mover and a front end assembly movably coupled to the motorized mover. The front end assembly is positionable in a safety configuration and a working configuration. The front end assembly includes at least one vertical member having a bottom end and a top end and at least one horizontal member having a first end and a second end. The first end is pivotally coupled to the bottom end and is moveable between a safety configuration and a working configuration. When the front end assembly is positioned in the working configuration, the horizontal member is oriented substantially perpendicularly with respect to the vertical member and extends in a direction away from the motorized mover.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Inventor: Walter D. Hall
  • Patent number: 8078368
    Abstract: A method of operating a lift truck, the method including the steps of actuating an override to move the lift truck from a safety configuration into a working configuration, positioning a load onto a front end assembly movably attached to the lift truck, disengaging the override, whereby the lift truck may move into the safety configuration once the load is removed from the front end assembly. The lift truck includes a motorized mover, a front end assembly movably coupled to the motorized mover, and a load sensor coupled to the front end assembly. The front end assembly is positionable between a safety configuration and a working configuration. The load sensor detects the presence of the load on the front end assembly. The front end assembly is moved into the safety configuration when the load sensor does not sense the load on the front end assembly.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: December 13, 2011
    Inventor: Walter D. Hall
  • Publication number: 20110266094
    Abstract: A method of operating a lift truck, the method including the steps of actuating an override to move the lift truck from a safety configuration into a working configuration, positioning a load onto a front end assembly movably attached to the lift truck, disengaging the override, whereby the lift truck may move into the safety configuration once the load is removed from the front end assembly. The lift truck includes a motorized mover, a front end assembly movably coupled to the motorized mover, and a load sensor coupled to the front end assembly. The front end assembly is positionable between a safety configuration and a working configuration. The load sensor detects the presence of the load on the front end assembly. The front end assembly is moved into the safety configuration when the load sensor does not sense the load on the front end assembly.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 3, 2011
    Inventor: Walter D. Hall
  • Publication number: 20110270496
    Abstract: A lift truck that includes a motorized mover and a front end assembly movably coupled to the motorized mover. The front end assembly is positionable in a safety configuration and a working configuration. The front end assembly includes at least one horizontal member that is movable in a substantially horizontal direction. When the front end assembly is positioned in the safety configuration, at least a portion of the horizontal member is positioned within the footprint of the motorized mover. When the front end assembly is positioned in the working configuration, at least a portion of the horizontal member is positioned outside the footprint of the motorized mover.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 3, 2011
    Inventor: Walter D. Hall
  • Patent number: 7865286
    Abstract: A method of operating a lift truck, the method including the steps of actuating an override to move the lift truck from a safety configuration into a working configuration, positioning a load onto a front end assembly movably attached to the lift truck, disengaging the override, whereby the lift truck may automatically move into the safety configuration once the load is removed from the front end assembly.
    Type: Grant
    Filed: May 1, 2010
    Date of Patent: January 4, 2011
    Inventor: Walter D. Hall
  • Patent number: D277866
    Type: Grant
    Filed: May 19, 1982
    Date of Patent: March 5, 1985
    Inventor: Walter D. Hall