Patents by Inventor Jerry R. Fifer

Jerry R. Fifer 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: 4821837
    Abstract: A control arrangement for construction equipment of the type having a number of actuators disposed at the operator's station advantageously transfers the pivotal movement of the actuators about a shaft to a position inboard of actuators to cause a sympathetic movement of crank arms disposed on the pivot axis of the shaft at the inboard position. The transfer of the pivotal movement is completed by elongate bridge connectors suitably placed about the circumference of the bearing portions of the actuators to avoid interference. Independent movement of the actuators is maintained while transferring the pivotal movement to the inboard position in that only a limited pivotable movement is required and the full circumference of the bearings is available for selective placement of the bridge connectors.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: April 18, 1989
    Assignee: Champion Road Machinery Limited
    Inventor: Jerry R. Fifer