Patents by Inventor Lung-Tsung Sung

Lung-Tsung Sung 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).

  • Apparatus configured to manufacture a roll of interleaved bags
    Patent number: 8308625
    Abstract: In an embodiment of the invention, a cut/weld apparatus is configured to provide optimal and limited tension of bag material even during high-speed operation. The limited tension may contribute to stronger plastic welds. Another embodiment of the invention, which may be used in combination with the first embodiment, provides a roll discharge stage in a bag manufacturing apparatus that includes a retracting spindle and may include a rotating tray. The improved discharge stage requires less floor space than conventional side-discharge manufacturing equipment.
    Type: Grant
    Filed: August 16, 2009
    Date of Patent: November 13, 2012
    Assignee: IPS Industries, Inc.
    Inventor: Lung Tsung Sung
  • APPARATUS AND METHOD FOR MANUFACTURING A ROLL OF INTERLEAVED BAGS
    Publication number: 20110039675
    Abstract: In an embodiment of the invention, a cut/weld apparatus is configured to provide optimal and limited tension of bag material even during high-speed operation. The limited tension may contribute to stronger plastic welds. Another embodiment of the invention, which may be used in combination with the first embodiment, provides a roll discharge stage in a bag manufacturing apparatus that includes a retracting spindle and may include a rotating tray. The improved discharge stage requires less floor space than conventional side-discharge manufacturing equipment.
    Type: Application
    Filed: August 16, 2009
    Publication date: February 17, 2011
    Inventor: LUNG TSUNG SUNG
  • Container
    Patent number: D617969
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: June 15, 2010
    Assignee: IPS Industries, Inc.
    Inventor: Lung-Tsung Sung