Patents by Inventor Wen-Cheng Zhang

Wen-Cheng Zhang 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: 20100205781
    Abstract: A handgrip pivot structure is provided for a hand puller, including two spaced anus defining aligned holes, a shaft rotatably arranged between the arms, and a collar rotatably fit over the shat for being hand held by an operator to reciprocally sway the hand puller and thus tighten or loosen a cable. The present invention provide such a feature that two pivoting arrangements are provided respectively between the shaft and the collar and between the shaft and the holes of the arms, whereby 360 degree full-turn rotation of the handgrip can be realized with more smooth operation than the conventional structure and jamming and stress concentration can be effectively eliminated.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Inventor: Wen-Cheng Zhang