Patents by Inventor Sam Yin

Sam Yin 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).

  • Swivel platform with detachable backrest and resilient exercise cords
    Patent number: 5279533
    Abstract: A fitness accessory includes a seat, a rotary table retained to the seat by a base plate, and a ball bearing retained between the seat and the rotary table, and a back plate detachable fastened to one side of the seat by dovetail joints. The seat has a pair of opposing hand grips when the appliance is used for push ups or sit ups. The rotary table has external raised portions for rubbing and kneading the feet when as the appliance is turned upside-down on the ground and stepped on. Elastic cords may be fastened to the base plate by plug members for pulling exercises.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: January 18, 1994
    Inventors: Sam Yin, Ming-Chih Huang
  • Multi-purpose physical exerciser
    Patent number: D343877
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: February 1, 1994
    Inventors: Sam Yin, Ming-Chih Huang