Patents by Inventor Hsun-Chieh Chang

Hsun-Chieh 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).

  • Trowel assembly
    Patent number: 7213295
    Abstract: A trowel assembly includes a blade plate, a connecting strip fixed on the blade plate and formed with an insertion recess, and a handle mounted on the connecting strip and having a downward extended support post provided with an insertion block inserted into the insertion recess of the connecting strip. Thus, the connecting strip is fixed on the blade plate in a riveting manner, and the handle is combined with the connecting strip in a screwing manner, so that the trowel assembly can be assembled easily, rapidly and conveniently, thereby facilitating the user mounting the trowel assembly.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: May 8, 2007
    Inventor: Hsun-Chieh Chang
  • Trowel assembly
    Publication number: 20050034262
    Abstract: A trowel assembly includes a blade plate, a connecting strip fixed on the blade plate and formed with an insertion recess, and a handle mounted on the connecting strip and having a downward extended support post provided with an insertion block inserted into the insertion recess of the connecting strip. Thus, the connecting strip is fixed on the blade plate in a riveting manner, and the handle is combined with the connecting strip in a screwing manner, so that the trowel assembly can be assembled easily, rapidly and conveniently, thereby facilitating the user mounting the trowel assembly.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 17, 2005
    Inventor: Hsun-Chieh Chang