Patents by Inventor William B. Bergfeld, III

William B. Bergfeld, III 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).

  • Adjustable self-locking wrench
    Patent number: 6848342
    Abstract: An adjustable self-locking wrench is provided. The wrench includes a handle, a base portion having an elongated groove and a locking chamber, a stationary jaw body, a movable jaw having an extension flange, a spring and a locking member. The locking member is movable between a first position wherein the locking member does not tightly contact the extension flange of the movable jaw and a second position wherein the locking member locks the movable jaw in a selected position relative to the stationary jaw.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: February 1, 2005
    Assignee: Irwin Industrial Tool Company
    Inventor: William B. Bergfeld, III