Patents by Inventor Chung-San Liao

Chung-San Liao 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: 7235038
    Abstract: An arm exerciser includes a forearm section having a grip adjustably positioned in the forearm section via a securing device and an arm section pivotally connected to the forearm section. The arm section has two second pivot holes in alignment with the two first pivot holes of the forearm section so that each of the two pivot assemblies is able to extend through the aligned first pivot hole and the second pivot hole to allow the arm section to be pivotally connected to the forearm section and at least one second support formed on a bottom of the arm section so that two ends of at least one resilient element is able to be secured on the at least one first support and the at least one second support to provide resistance to the pivotal movement of the forearm section relative to the arm section.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: June 26, 2007
    Inventor: Chung-San Liao
  • Patent number: 7223217
    Abstract: An exerciser includes a safety block having two through holes defined through the safety block and two cutouts defined in two opposite sides of the safety block, two elastic strings respectively extending through and securely received the two through holes of the safety block, two safety pads each provided to opposite sides of the safety block to securely connect to one end of the two elastic to allow an operator to work on thigh muscles and two rings connected to a corresponding one of the two safety pads to allow the operator to work on chest muscles.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: May 29, 2007
    Inventor: Chung-San Liao
  • Publication number: 20070099760
    Abstract: An arm exerciser includes a forearm section having a grip adjustably positioned in the forearm section via a securing device and an arm section pivotally connected to the forearm section. The arm section has two second pivot holes in alignment with the two first pivot holes of the forearm section so that each of the two pivot assemblies is able to extend through the aligned first pivot hole and the second pivot hole to allow the arm section to be pivotally connected to the forearm section and at least one second support formed on a bottom of the arm section so that two ends of at least one resilient element is able to be secured on the at least one first support and the at least one second support to provide resistance to the pivotal movement of the forearm section relative to the arm section.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 3, 2007
    Inventor: Chung-San Liao