Patents by Inventor Karl F. Nothdurft

Karl F. Nothdurft 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: 5997410
    Abstract: Improvement in a golf training device having a guide bar having a horizontally disposed straight portion thereof for guiding the back and forth movement of the shaft of a golf club while a golfer practices therewith, the improvement being in the arrangement supporting the guide bar, such arrangement utilizing the weight of the golfer to steady the position thereof during use of the golf training device and including a foot mat upon which the golfer can stand, the foot mat having top and bottom surfaces, a straight front edge and front corners at opposite ends of the front edge, a pair of support structures at such front corners, respectively, which upstand from the top surface of the foot mat for gripping opposite ends of the guide bar, respectively, to hold it in place, the support structures holding the straight portion of the guide bar bar disposed above such top surface and forwardly of such front edge, the golfer being able to stand upon the foot mat behind the pair of support structures, whereby his wei
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: December 7, 1999
    Inventor: Karl F. Nothdurft