Patents by Inventor Branko Duras

Branko Duras 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).

  • Two wire spring making machine and method
    Patent number: 6584823
    Abstract: A method and machine for selectively manufacturing wire springs from two different wires by feeding the wires through a pair of continuously rotatable opposed feed rollers, which rollers are operative to feed only one of the wires at a time into engagement with a coil forming mechanism having a pair of coil forming tools. The tools are selectively positionable for engagement with one or the other of the two wires depending upon which of the two wires is being fed into the coil forming mechanism.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: July 1, 2003
    Assignee: L&P Property Management Company
    Inventors: Stjepan Hresc, Branko Duras
  • Two wire spring making machine and method
    Publication number: 20020104353
    Abstract: A method and machine for selectively manufacturing wire springs from two different wires by feeding the wires through a pair of continuously rotatable opposed feed rollers, which rollers are operative to feed only one of the wires at a time into engagement with a coil forming mechanism having a pair of coil forming tools. The tools are selectively positionable for engagement with one or the other of the two wires depending upon which of the two wires is being fed into the coil forming mechanism.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 8, 2002
    Inventors: Stjepan Hresc, Branko Duras