Patents by Inventor Robert A. Sillers

Robert A. Sillers 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).

  • Publication number: 20020128089
    Abstract: A metal-wood golf club having a removable sole plate that exposes a recessed cavity or multiple recessed cavities within the sole, into which lead tape or another suitable weighting material can be inserted to achieve precise weight distribution and modifying the center of gravity within the head. All added weight is in the sole, below the original center of gravity, making the club easier to hit. This system allows the custom clubmaker, or the individual golfer, to add weight in the center, toward the toe, heel, face, rear, or any combination thereof within the clubhead in order to adjust the club's center of gravity to the golfer's particular swing characteristics. Once the weight or weights have been added, the sole plate cover is reattached by means of a locking screw that covers, protects, and secures the weights in place within the recessed cavity.
    Type: Application
    Filed: December 18, 2000
    Publication date: September 12, 2002
    Inventors: Robert A. Sillers, Domingo S. Prospero
  • Patent number: D337803
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: July 27, 1993
    Inventor: Robert A. Sillers