Patents by Inventor Chi Y. Lin

Chi Y. Lin 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).

  • Testing facility for wrenches
    Patent number: 5353654
    Abstract: A device for testing a wrench including a base fixed in a housing, a cylinder disposed in the base and having a piston rod extended upward, a support fixed on top of the piston rod for supporting the handle portion of the wrench, the socket of the wrench is retained in place and the handle portion of the wrench is pushed upward in a repeated action by the cylinder so as to test the working life of the wrench.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: October 11, 1994
    Inventor: Chi Y. Lin