Patents by Inventor John W. Butler

John W. Butler 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).

  • Compact portable leg exercise machine
    Patent number: 9364709
    Abstract: A compact portable leg exercise apparatus includes a top platform, a base member, a resilient member and a frame assembly interposed between the top platform and base member. The apparatus is sized to receive a foot onto the top platform to move the top platform relative to the base member and against a force provided by the resilient member as the apparatus is moved to the collapsed position. The apparatus is sized to fit in carryon luggage, handbag, backpack or be hand-carried, allowing for its use anywhere. The frame assembly aligns the top platform and base member and inhibits twisting motion of the top platform relative to the base member, thereby constraining the motion of travel for the apparatus. The frame assembly can include a plurality of hinged leaf pairs shaped to inhibit generation of noise by the frame assembly as it moves to the collapsed configuration during use of the exercise apparatus.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 14, 2016
    Inventors: Ying Y. Butler, John W. Butler
  • COMPACT PORTABLE LEG EXERCISE MACHINE
    Publication number: 20150321043
    Abstract: A compact portable leg exercise apparatus includes a top platform, a base member, a resilient member and a frame assembly interposed between the top platform and base member. The apparatus is sized to receive a foot onto the top platform to move the top platform relative to the base member and against a force provided by the resilient member as the apparatus is moved to the collapsed position. The apparatus is sized to fit in carryon luggage, handbag, backpack or be hand-carried, allowing for its use anywhere. The frame assembly aligns the top platform and base member and inhibits twisting motion of the top platform relative to the base member, thereby constraining the motion of travel for the apparatus. The frame assembly can include a plurality of hinged leaf pairs shaped to inhibit generation of noise by the frame assembly as it moves to the collapsed configuration during use of the exercise apparatus.
    Type: Application
    Filed: October 7, 2014
    Publication date: November 12, 2015
    Inventors: Ying Y. Butler, John W. Butler
  • Compact portable leg exercise machine
    Patent number: 8864633
    Abstract: A compact portable leg exercise apparatus includes a top platform, a base member, a resilient member and a frame assembly interposed between the top platform and base member. The apparatus is sized to receive a foot onto the top platform to move the top platform relative to the base member and against a force provided by the resilient member as the apparatus is moved to the collapsed position. The apparatus is sized to fit in carryon luggage, handbag, backpack or be hand-carried, allowing for its use anywhere. The frame assembly aligns the top platform and base member and inhibits twisting motion of the top platform relative to the base member, thereby constraining the motion of travel for the apparatus. The frame assembly can include a plurality of hinged leaf pairs shaped to inhibit generation of noise by the frame assembly as it moves to the collapsed configuration during use of the exercise apparatus.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: October 21, 2014
    Inventors: Ying Y. Butler, John W. Butler
  • Compact portable leg exercise machine
    Patent number: D734412
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: July 14, 2015
    Inventors: Ying Y. Butler, John W. Butler