Patents by Inventor Chyun-Kwang Lin

Chyun-Kwang 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).

  • Catapult having a disengagable handle
    Patent number: 5579751
    Abstract: A catapult includes a handle having an opening formed in the upper portion for receiving a stud of a block. The stud has a projection extended forward for engaging with the handle. A bracket is secured to the block for supporting a resilient belt. A knob is engaged in the rear portion of the handle for engaging with the stud so as to retain the stud in the handle. The stud and thus the block may be easily disengaged from the handle by depressing the knob. An arm rest is secured to the block for preventing the bracket and the handle from rotating toward the user.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: December 3, 1996
    Inventor: Chyun-Kwang Lin