Patents by Inventor Gerald E. Hallberg, Jr.

Gerald E. Hallberg, Jr. 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).

  • Self-locking tire mold blade
    Patent number: 6827566
    Abstract: A blade for use in a tire mold, a combination of the blade with the tire mold, and a method of attaching the blade to the tire mold. An edge portion of the blade is received in a slot in the tire mold, and a body portion extends therefrom to form a sipe in a tire. One or a pair of tab portions attached to the edge portion is received in an indent in the slot, and a wedge forces the tab portion or portions into a locked position as the blade is driven into the slot. A break-away tendon or tendons attach the wedge to the tab portion or portions and break to allow wedge movement for achieving the locked position when the blade is driven into the slot. Alternatively, a wedge is pre-positioned in an housing in the indent whereby blade tab portions move into a locked position upon contact with the wedge. The mold is engraved, and the blade is formed by laser or water jet cutting.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: December 7, 2004
    Assignee: G.M. Root, Inc.
    Inventors: Richard Root, Gerald E. Hallberg, Jr., Pierre H. Noel, Robert J. Boody