Patents by Inventor Norman B. Grahm

Norman B. Grahm 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).

  • Method for increasing the strength, flexibility and span of a hand
    Patent number: 5549520
    Abstract: An apparatus for stretching the span of a hand includes a base member and a pair of spaced pegs; one peg for engaging the first metacarpal and one peg for engaging the fifth metacarpal of the hand. The pegs are mounted for relative adjustment in the base member. More particularly, the peg for engaging the first metacarpal is received in a straight guide way or slot extending through the base member. The second peg for engaging the fifth metacarpal is received in an arcuate guide track or slot extending through the base member in an arc about the first peg. Graduations are provided to identify relative positions along the guide way and guide track. A method for stretching the span of a hand includes engaging the hand between the first and second metacarpals with a first peg and between the fourth and fifth metacarpals at a spaced stretching distance with a second peg. Next is repeatedly pressing the hand against the pegs to provide stretching.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: August 27, 1996
    Inventor: Norman B. Grahm
  • Method and apparatus for increasing the strength, flexibility and span of a hand
    Patent number: 5374226
    Abstract: An apparatus for stretching the span of a hand includes a base member and a pair of spaced pegs; one peg for engaging the first metacarpal and one peg for engaging the fifth metacarpal of the hand. The pegs are mounted for relative adjustment in the base member. More particularly, the peg for engaging the first metacarpal is received in a straight guide way or slot extending through the base member. The second peg for engaging the fifth metacarpal is received in an arcuate guide track or slot extending through the base member in an arc about the first peg. Graduations are provided to identify relative positions along the guide way and guide track. A method for stretching the span of a hand includes engaging the hand between the first and second metacarpals with a first peg and between the fourth and fifth metacarpals at a spaced stretching distance with a second peg. Next is repeatedly pressing the hand against the pegs to provide stretching.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: December 20, 1994
    Inventor: Norman B. Grahm