Patents by Inventor Liang-Chuan Tseng

Liang-Chuan Tseng 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).

  • Patent number: 7032316
    Abstract: A pair of scissors includes a left member, a right member, a main member and a combining member pivotally combined together. The scissors are formed with two different-shaped blades able to cut paper into different-patterned borderlines, convenient in use and able to lower expenses.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: April 25, 2006
    Inventor: Liang-Chuan Tseng
  • Patent number: 5533236
    Abstract: A paper holder has a pincher made of a metal plate bent to have a triangular cross-section, and two press handles made of a metal wire bent to have a triangular portion and a nearly circular portion. The pincher has two ends in close contact and formed with two elastic semicircular hinge hooks and another semicircular hook between the two hooks for a bottom side of each press handle to be pushed therein with the triangular portion of each press handle to rest thereon. Then the two press handles can be pressed down to let the bottom sides of the pincher to open for papers to be inserted and pinched therein after the press handles are released.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: July 9, 1996
    Assignee: Chun-Hsiung Hsu
    Inventor: Liang-Chuan Tseng
  • Patent number: 5152423
    Abstract: An elastic clip gun comprising an upper body and an lower body combined together, having a central lengthwise passageway for an elastic clip made of a bent plate to move forward therein, the elastic clip having a central opening to fit with a central lengthwise guide rail and to slide thereon and then to be pushed by a pushing block fitted and moved manually in a sliding opening in the upper surface to push the clip out of a pinching opening provided with two Y-shaped plates to expand the clip so as to pinch papers placed in the pinching opening.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: October 6, 1992
    Inventor: Liang-Chuan Tseng
  • Patent number: D341287
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: November 16, 1993
    Inventor: Liang-Chuan Tseng