Patents by Inventor Mark D. Pittroff

Mark D. Pittroff 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: 6135932
    Abstract: A method of performing the front squat exercise and a weight lifting device for distributing the load of a weight lifting barbell during the performance of the front squat exercise is provided which transfers a majority of the load of the barbell to the anterior deltoid muscle areas of the weight lifter. The weight lifting device of the present invention comprises a pair of barbell supports, each having a lower surface contoured to fit and conform to the anterior deltoid muscle areas of the weight lifter and an upper surface for attaching to the shaft of a barbell.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: October 24, 2000
    Inventor: Mark D. Pittroff
  • Patent number: 5342272
    Abstract: A weight lifting device is provided which removably snaps to the bar of a barbell and provides a support means for resting the device and essentially all of the weight of the barbell on the trapezius upper back muscles of weight lifters. The device has a laterally extending body that is operable to be placed across the back of a weight lifter, a bar securing means disposed on its top, and a centrally disposed and downwardly extending lobe on the back of the device. The lobe, along its inner surface, is operable to rest essentially the entire weight of the barbell on the trapezius upper back muscles of a weight lifter. The preferred embodiment of the invention includes a lobe having a convexly curved inner surface that is curved to generally mate with the trapezius upper back muscles in the valley between the left and right sides of the muscles.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: August 30, 1994
    Inventor: Mark D. Pittroff