Patents by Inventor Chin-Hsiun Chang

Chin-Hsiun Chang 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).

  • Counterforce-counteracting device for a nailer
    Patent number: 7513407
    Abstract: A counterforce-counteracting device for a nailer comprises an active device, a rotating member, and a weight device. The active device drives the rotating member and the weight device to move. After the active device moves, the weight device is driven by the rotating member to produce a counterforce, so as to counteract the counterforce of the nailer. Thereby, such a device is secure and is easy to assemble.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: April 7, 2009
    Assignee: Acuman Power Tools Corp.
    Inventor: Chin-Hsiun Chang
  • COUNTERFORCE-COUNTERACTING DEVICE FOR A NAILER
    Publication number: 20090078734
    Abstract: A counterforce-counteracting device for a nailer comprises an active device, a rotating member, and a weight device. The active device drives the rotating member and the weight device to move. After the active device moves, the weight device is driven by the rotating member to produce a counterforce, so as to counteract the counterforce of the nailer. Thereby, such a device is secure and is easy to assemble.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Inventor: Chin-Hsiun CHANG