Patents by Inventor Gerald E. Renfro

Gerald E. Renfro 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: 4917567
    Abstract: A log yarder including a support vehicle; a horizontally rotatable framework mounted on the vehicle; one or more booms mounted on the framework; an elongated heeling rack mounted on the most terminal boom; a slack kicker for skidding logs to the yarder; and a grapple for loading or placement of the logs so skidded. The combination of slack kicker and grapple enables a single operator to skid a fallen log to the grapple for loading the log for hauling or for deck placement. The slack kicker includes a cable which is threaded through one end of the heeling rack which may be used to skid the logs into a substantially aligned position with the grapple for convenient and efficient loading.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: April 17, 1990
    Inventors: Gerald E. Renfro, Kenneth W. Renfro