Patents by Inventor Allen L. Liston

Allen L. Liston 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).

  • Adjustment means for operator controls
    Patent number: 4499963
    Abstract: An improved adjustment means for Operator controls in a crane having a sub-floor having a plurality of fore and aft slots with both extending therethrough to engage the floor and support the sub-floor. A pair of inner pedals are mounted on the sub-floor and operate valves carried by the sub-floor. A pair of outer pedals are also mounted on the floor and are connected by bowden cables to a control shaft mounted on the floor.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: February 19, 1985
    Assignee: FMC Corporation
    Inventor: Allen L. Liston