Patents by Inventor Dong Hua Chai

Dong Hua Chai 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).

  • Publication number: 20080280693
    Abstract: A golf club comprises a club head and a club shaft, in which, the head includes a main body with a top hole arranged in a top portion thereof and a bottom hole corresponding to the top hole in a bottom portion of the same, and also includes a joint, one end of which is an insertion end inserted into and located by a Location structure within the top hole, and connected with a fastener arranged at the bottom of the main body, the other end of which is fixedly secured to the shaft. The fixedly secured joint portion passes through a passage communicating with the top hole and the bottom hole. The above arrangement is convenient for the detachment of the golf shaft and the random combination of the head and the shaft.
    Type: Application
    Filed: March 29, 2006
    Publication date: November 13, 2008
    Inventor: Dong Hua Chai