Patents by Inventor Il-Sook Park

Il-Sook Park 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: 7226519
    Abstract: Disclosed is a flexible hose for a vacuum cleaner and a fabricating method thereof. The fabrication method includes the steps of: extruding a primary extrusion molding band 13 having a larger size than a size of a finished state while embedding an electric wire 1 in the primary extrusion molding band 13 at a first extruder 12; molding a multi-extrusion molding band 10 in the size of the finished state at a sizing mold 14; and winding the multi-extrusion molding band 10 at a predetermined angle at a bonder and bonding a bonding portion 2 of the electric embedding portion 3 with a bonding end 4 of the semicircular portions 5 positioned on both sides of the multi-extrusion molding band 10 by using adhesive 8.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: June 5, 2007
    Assignee: Sungkwang Best Co., Ltd.
    Inventor: Il-Sook Park
  • Publication number: 20040096616
    Abstract: Disclosed is a flexible hose for a vacuum cleaner and a fabricating method thereof. The fabrication method includes the steps of: extruding a primary extrusion molding band 13 having a larger size than a size of a finished state while embedding an electric wire 1 in the primary extrusion molding band 13 at a first extruder 12; molding a multi-extrusion molding band 10 in the size of the finished state at a sizing mold 14; and winding the multi-extrusion molding band 10 at a predetermined angle at a bonder and bonding a bonding portion 2 of the electric embedding portion 3 with a bonding end 4 of the semicircular portions 5 positioned on both sides of the multi-extrusion molding band 10 by using adhesive 8.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 20, 2004
    Inventor: Il-Sook Park