Patents by Inventor Hung An Chen

Hung An Chen 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 for manufacturing slide fastener spiral continuous element row
    Patent number: 6783351
    Abstract: An apparatus for manufacturing slide fastener spiral continuous element row comprises a forming screw assembly, a die assembly, an abutment assembly, and a rear forming assembly. The invention can effect a stable operation with the cooperation of a spring-biased shaft mechanism, a rear adjustment screw, and two side adjustment screws so as to manufacture quality products.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 31, 2004
    Inventor: Hung An Chen
  • Apparatus for manufacturing slide fastener coil-shaped continuous element row
    Patent number: 6783350
    Abstract: An apparatus for manufacturing slide fastener coil-shaped continuous element row comprises a forming screw assembly, a die assembly, an abutment assembly, and a rear forming assembly having one or two shuttle assemblies or a shaft mechanism. An arcuate recessed portion is formed on a top side of either element or a flat area formed on a bottom side of either element when the arcuate piece of the top shuttle assembly or the flat piece of the bottom shuttle assembly is abutted on the element so that the invention can effect a stable operation and a precise positioning of zipper forming space by manipulating the rear forming assembly in an adjustment operation.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 31, 2004
    Inventor: Hung An Chen
  • Apparatus for manufacturing slide fastener spiral continuous element row
    Publication number: 20040005376
    Abstract: An apparatus for manufacturing slide fastener spiral continuous element row comprises a forming screw assembly, a die assembly, an abutment assembly, and a rear forming assembly. The invention can effect a stable operation with the cooperation of a spring-biased shaft mechanism, a rear adjustment screw, and two side adjustment screws so as to manufacture quality products.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 8, 2004
    Inventor: Hung An Chen
  • Apparatus for manufacturing slide fastener coil-shaped continuous element row
    Publication number: 20040005375
    Abstract: An apparatus for manufacturing slide fastener coil-shaped continuous element row comprises a forming screw assembly, a die assembly, an abutment assembly, and a rear forming assembly having one or two shuttle assemblies or a shaft mechanism. An arcuate recessed portion is formed on a top side of either element or a flat area formed on a bottom side of either element when the arcuate piece of the top shuttle assembly or the flat piece of the bottom shuttle assembly is abutted on the element so that the invention can effect a stable operation and a precise positioning of zipper forming space by manipulating the rear forming assembly in an adjustment operation.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 8, 2004
    Inventor: Hung An Chen