Patents by Inventor John L. Zambelli

John L. Zambelli 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: 5246234
    Abstract: The present invention relates to a golf practice aid for assisting a golfer in maintaining a proper stance about the golf ball and with respect to the pin or target. The golf practice aid comprises a stance quadrant, that includes an angularly adjustable elongated heel guide for defining open and closed stances. Also forming a part of the stance quadrant is an adjustable ball position indicator run that extends parallel to the heel guide. The stance quadrant is tied together by a pair of spaced apart crossties extending between the heel guide and the adjustable ball position indicator. A target support extends outwardly from the stance indicator and there is provided a movable target indicator mounted on the target support and adapted to point towards the pin or hole placement.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: September 21, 1993
    Inventor: John L. Zambelli