Patents by Inventor Long-Chuan Shu

Long-Chuan Shu 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).

  • Adjustable air pressure force resistance exerciser system
    Patent number: 5383830
    Abstract: An adjustable pressurized air in a wheel box for exerciser includes a wheel being rotatably sealed in a box which is filled with air to a predetermined pressure through a check valve. The pressure is measured by a pressure gauge which will release extra pressure through another check valve to maintain a constant and most ,appropriate pressure in the box which will produce resistance to rotate the wheel by stepping on a pair of pedals of a training bicycle to rotate the wheel.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: January 24, 1995
    Assignee: Shuang Rong Shing Traffic Material Factory Co., Ltd.
    Inventor: Long-Chuan Shu