Russell Nathan Myers

US Patent:

6847008, Jan 25, 2005

Filed:

Jan 17, 2003

Appl. No.:

10/346023

Inventors:

Russell K. Myers - Hudson OH, US
William S. Houston - Avon OH, US

Assignee:

Lincoln Global, Inc. - Monterey Park CA

International Classification:

B23K 909

US Classification:

21913051

Abstract:

An electric arc welding system for creating a first AC welding arc with a first current waveform between a first electrode and a workpiece by a first power supply and a second AC welding arc with a second current waveform between a second electrode and a workpiece by a second power supply as the first and second electrodes are moved in unison along a welding path, where the first and second power supply each comprising a high speed switching inverter creating its waveform by a number of current pulses occurring at a frequency of at least 18 kHz with the magnitude of each current pulse controlled by a wave shaper and the polarity of the waveforms is controlled by a signal. The first AC waveform has a positive portion substantially different in energy than its negative portion and/or has either a different shape and/or a synthesized sinusoidal portion.

US Patent:

6930279, Aug 16, 2005

Filed:

Jul 25, 2003

Appl. No.:

10/626919

Inventors:

Russell K. Myers - Hudson OH, US
William S. Houston - Avon OH, US

Assignee:

Lincoln Global, Inc. - Monterey Park CA

International Classification:

B23K009/09

US Classification:

21913051, 21913021

Abstract:

An electric arc welder for performing a given weld process with a selected A. C. pulse current waveform performed between an electrode and a workpiece, where the current waveform includes a positive segment and a negative segment, with at least one segment including a peak current and background current. The welder comprises: a power source with a controller having a digital processor including a program to calculate the real time power factor of the weld current and weld voltage where the program includes an algorithm to calculate the rms weld voltage, the rms weld current and the average power of said power source; a circuit to multiply the rms current by the rms voltage to produce an rms power level; a circuit to divide the average power by the rms power to create a value representing the actual real time power factor of said power source; and, a circuit to adjust said background current to maintain said power factor at a given level, which is manually adjusted to set the heat of the weld.

US Patent:

7091445, Aug 15, 2006

Filed:

Jun 26, 2003

Appl. No.:

10/603322

Inventors:

Russell K. Myers - Hudson OH, US
William S. Houston - Avon OH, US
Timothy M. O'Donnell - Chesterland OH, US
Robert Hasan - Euclid OH, US

Assignee:

Lincoln Global, Inc. - Santa Fe Springs CA

International Classification:

B23K 9/09

US Classification:

21913032, 21913051

Abstract:

Electric arc welder () performs a given weld process with selected current waveform performed between electrode () and workpiece (). Welder () includes a controller with a digital processor (), sensor () for reading instantaneous weld current, and circuit () to convert the instantaneous current into a digital representation of the level of instantaneous weld current. Digital processor () has program circuit () to periodically read and square the digital representation at a given rate, register () for summing a number N of square digital representations to give a summed value, and an algorithm () for periodically dividing the summed value by the number N to provide a quotient and then taking the square root of said quotient to thereby digitally construct rms signal () representing the root mean square of the weld current.

US Patent:

7105773, Sep 12, 2006

Filed:

Jan 12, 2004

Appl. No.:

10/754836

Inventors:

Russell K. Myers - Hudson OH, US
Timothy M. O'Donnell - Chesterland OH, US
Alonzo P. O. Yost - North Canton OH, US

Assignee:

Lincoln Global, Inc. - Sante Fe Springs CA

International Classification:

B23K 9/09

US Classification:

21913051

Abstract:

An electric arc welder for depositing weld metal along a groove between two edges of a metal workpiece where the welder comprises a first electrode driven by a first wire feeder toward a point in said groove, a second electrode driven by a second wire feeder toward the point and a main power source with a first output terminal connected to the first electrode and a second output terminal connected both to the second electrode and directly or indirectly to the metal workpiece to create a second electrode path and a workpiece path. The power source includes a high speed switching output stage for creating current with a selected AC waveform between the first and second output terminals where the waveform of the main power source is generated by a waveform generator controlling a pulse width modulator circuit to determine the current operation of the output stage.

US Patent:

7148449, Dec 12, 2006

Filed:

Dec 7, 2004

Appl. No.:

11/006180

Inventors:

Russell K. Myers - Hudson OH, US
William S. Houston - Avon OH, US

Assignee:

Lincoln Global, Inc. - Santa Fe Springs CA

International Classification:

B23K 9/09

US Classification:

21913051

Abstract:

An electric arc welding system for creating a first AC welding arc with a first current waveform between a first electrode and a workpiece by a first power supply and a second AC welding arc with a second current waveform between a second electrode and a workpiece by a second power supply as the first and second electrodes are moved in unison along a welding path, where the first and second power supply each comprising a high speed switching inverter creating its waveform by a number of current pulses occurring at a frequency of at least 18 kHz with the magnitude of each current pulse controlled by a wave shaper and the polarity of the waveforms is controlled by a signal. The first AC waveform has a positive portion substantially different in energy than its negative portion and/or has either a different shape and/or a synthesized sinusoidal portion.

US Patent:

7411156, Aug 12, 2008

Filed:

Oct 24, 2006

Appl. No.:

11/586156

Inventors:

Russell K. Myers - Hudson OH, US
William S. Houston - Avon OH, US

Assignee:

Lincoln Global, Inc. - City of Industry CA

International Classification:

B23K 9/09

US Classification:

21913051

Abstract:

An electric arc welding system for creating a first AC welding arc with a first current waveform between a first electrode and a workpiece by a first power supply and a second AC welding arc with a second current waveform between a second electrode and a workpiece by a second power supply as the first and second electrodes are moved in unison along a welding path, where the first and second power supply each comprising a high speed switching inverter creating its waveform by a number of current pulses occurring at a frequency of at least 18 kHz with the magnitude of each current pulse controlled by a wave shaper and the polarity of the waveforms is controlled by a signal. The first AC waveform has a positive portion substantially different in energy than its negative portion and/or has either a different shape and/or a synthesized sinusoidal portion.

US Patent:

7573002, Aug 11, 2009

Filed:

Jul 10, 2006

Appl. No.:

11/483899

Inventors:

Russell K. Myers - Hudson OH, US
William S. Houston - Avon OH, US
Timothy M. O'Donnell - Chesterland OH, US
Robert Hasan - Euclid OH, US

Assignee:

Lincoln Global, Inc. - Monterey Park CA

International Classification:

B23K 9/10

US Classification:

21913771

Abstract:

Electric arc welder () performs a given weld process with selected current waveform performed between electrode () and workpiece (). Welder () includes a controller with a digital processor (), sensor () for reading instantaneous weld current, and circuit () to convert the instantaneous current into a digital representation of the level of instantaneous weld current. Digital processor () has program circuit () to periodically read and square the digital representation at a given rate, register () for summing a number N of square digital representations to give a summed value, and an algorithm () for periodically dividing the summed value by the number N to provide a quotient and then taking the square root of said quotient to thereby digitally construct rms signal () representing the root mean square of the weld current.

US Patent:

7842903, Nov 30, 2010

Filed:

Oct 31, 2005

Appl. No.:

11/263064

Inventors:

Russell K. Myers - Hudson OH, US

Assignee:

Lincoln Global, Inc. - Santa Fe Springs CA

International Classification:

B23K 9/09

US Classification:

21913051, 21913021, 219137 PS

Abstract:

A welding system for performing a short arc welding process between a advancing wire electrode and a workpiece. The system comprises a power source with a controller for creating a current pulse introducing energy into the electrode to melt the end of the electrode and a low current quiescent metal transfer section following the end of the melting pulse during which the melted electrode short circuits against the workpiece; a timer to measure the actual time between the end of the pulse and the short circuit; a device for setting a desired time from the pulse to the short circuit; a circuit to create a corrective signal based upon the difference between the actual time and the desired time; and, a circuit responsive to the corrective signal to control a given parameter of the current pulse.