Patents by Inventor Timothy P. Rosiek

Timothy P. Rosiek 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).

  • Pipe seam tack welding methods and apparatus using modified series arc welding
    Patent number: 7495193
    Abstract: Welders and methods are presented for short-circuit arc welding a workpiece using a modified series arc welding configuration with two electrodes via a sequence of welding cycles, in which each cycle includes an arc condition a short-circuit condition, wherein one or both electrode currents are selectively reversed during a reverse boost portion of the welding cycle to transfer molten metal from the second electrode to the first electrode prior to a short-circuit condition of a subsequent welding cycle.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: February 24, 2009
    Assignee: Lincoln Global, Inc.
    Inventors: Russ K. Myers, Timothy M. O'Donnell, Timothy P. Rosiek
  • Arc welding system and method
    Patent number: 7105772
    Abstract: A welder using a circuit or method of changing polarity of an AC welding current comprising: the generation of a polarity changing signal, commanding a change in the polarity of the current a given time after generation of the polarity changing signal and reducing the given time upon detection of a short in the welding current.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: September 12, 2006
    Assignee: Lincoln Global, Inc.
    Inventors: William S. Houston, Russell K. Myers, Timothy P. Rosiek
  • AC welding system and method
    Publication number: 20040232129
    Abstract: A welder using a circuit or method of changing polarity of an AC welding current comprising: the generation of a polarity changing signal, commanding a change in the polarity of the current a given time after generation of the polarity changing signal and reducing the given time upon detection of a short in the welding current.
    Type: Application
    Filed: March 24, 2003
    Publication date: November 25, 2004
    Applicant: Lincoln Global, Inc.
    Inventors: William S. Houston, Russell K. Myers, Timothy P. Rosiek