Patents by Inventor Gerd Huismann
Gerd Huismann 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).
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Publication number: 20090242532Abstract: A method and apparatus for providing welding-type power include a wire feeder that provides wire to an arc and a power supply that provides power to the arc. A reversible wire feed motor moves the wire to and away from the arc. A controller controls the reversible wire feeder motor to reverse at least once per process cycle, and/or controls the power source to provide a desired mean arc current, and/or controls the reversible motor in response to short detection and short clearing, and/or controls the reversal frequency in response to pool oscillation frequency. A wire feed motor output is slaved to an average of the reversible motor output. The controller may include various control modules, such as a mean arc current control module, and/or a short detection feedback circuit. The reversible motor is a stepper motor, that incrementally turns in a series of steps having a given angle in another embodiment.Type: ApplicationFiled: June 11, 2009Publication date: October 1, 2009Applicant: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke
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Patent number: 7554056Abstract: A method and apparatus for providing welding-type power include a wire feeder that provides wire to an arc and a power supply that provides power to the arc. A reversible wire feed motor moves the wire to and away from the arc. A controller controls the reversible wire feeder motor to reverse at least once per process cycle, and/or controls the power source to provide a desired mean arc current, and/or controls the reversible motor in response to short detection and short clearing, and/or controls the reversal frequency in response to pool oscillation frequency. A wire feed motor output is slaved to an average of the reversible motor output. The controller may include various control modules, such as a mean arc current control module, and/or a short detection feedback circuit. The reversible motor is a stepper motor, that incrementally turns in a series of steps having a given angle in another embodiment.Type: GrantFiled: October 11, 2006Date of Patent: June 30, 2009Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke
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Publication number: 20090139971Abstract: A method and apparatus for feeding wire from a source of wire to a weld includes one or more motors disposed adjacent the wire to drive the wire to the weld. A buffer is disposed between the source and an arc end of the torch. Another motor may be disposed near the wire source. A wire tension controller may be provided. The one or more motors advance and retract the wire, and wire is stored, or the path length altered, when the wire is retracted.Type: ApplicationFiled: February 9, 2009Publication date: June 4, 2009Applicant: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison
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Publication number: 20080217313Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: ApplicationFiled: March 14, 2008Publication date: September 11, 2008Applicant: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison
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Publication number: 20080149610Abstract: A method and apparatus for controlling a welding-type power supply includes providing a current wave form having an arc current portion and a short circuit current portion. An arc state is entered by retracting a welding wire, and a short circuit state is entered by advancing the wire. The current enters the arc current portion prior to the creation of the arc and the current enters the short circuit current portion prior to the creation of the short, by coordinating the wave form with the wire retraction. This may be preformed on a wire having a diameter of 2.4 mm or more to a weld and applying a welding current of less than 100 amps, or of less than 35 amps. One current waveform during the arc state includes at least three segments, and the last segment is entered into prior to the short circuit state being entered, and is the same current magnitude as the current magnitude at the start of the short circuit state.Type: ApplicationFiled: February 20, 2008Publication date: June 26, 2008Applicant: Illinois Tool Work Inc.Inventors: Gerd A. Huismann, Peter A. Hennecke, Richard M. Hutchison, Lori L. Kuiper, Tim A. Matus
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Patent number: 7364059Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: GrantFiled: July 28, 2006Date of Patent: April 29, 2008Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Henecke, Richard M. Hutchison
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Patent number: 7351933Abstract: A method and apparatus for controlling a welding-type power supply includes providing a current wave form having an arc current portion and a short circuit current portion. An arc state is entered by retracting a welding wire, and a short circuit state is entered by advancing the wire. The current enters the arc current portion prior to the creation of the arc and the current enters the short circuit current portion prior to the creation of the short, by coordinating the wave form with the wire retraction. This may be preformed on a wire having a diameter of 2.4 mm or more to a weld and applying a welding current of less than 100 amps, or of less than 35 amps. One current waveform during the arc state includes at least three segments, and the last segment is entered into prior to the short circuit state being entered, and is the same current magnitude as the current magnitude at the start of the short circuit state.Type: GrantFiled: March 28, 2006Date of Patent: April 1, 2008Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison, Lori L. Kuiper, Tim A. Matus
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Publication number: 20070131665Abstract: A method and apparatus for providing welding-type power include a wire feeder that provides wire to an arc and a power supply that provides power to the arc. A reversible wire feed motor moves the wire to and away from the arc. A controller controls the reversible wire feeder motor to reverse at least once per process cycle, and/or controls the power source to provide a desired mean arc current, and/or controls the reversible motor in response to short detection and short clearing, and/or controls the reversal frequency in response to pool oscillation frequency. A wire feed motor output is slaved to an average of the reversible motor output. The controller may include various control modules, such as a mean arc current control module, and/or a short detection feedback circuit. The reversible motor is a stepper motor, that incrementally turns in a series of steps having a given angle in another embodiment.Type: ApplicationFiled: October 11, 2006Publication date: June 14, 2007Applicant: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke
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Patent number: 7165707Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: GrantFiled: July 23, 2002Date of Patent: January 23, 2007Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison
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Publication number: 20070000893Abstract: A method and apparatus for feeding wire from a source of wire to a weld includes one or more motors disposed adjacent the wire to drive the wire to the weld. A buffer is disposed between the source and an arc end of the torch. Another motor may be disposed near the wire source. A wire tension controller may be provided. The one or more motors advance and retract the wire, and wire is stored, or the path length altered, when the wire is retracted.Type: ApplicationFiled: August 18, 2006Publication date: January 4, 2007Applicant: Illinois Tool Works, Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard Hutchison
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Publication number: 20060261052Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: ApplicationFiled: July 28, 2006Publication date: November 23, 2006Inventors: Gerd Huismann, Peter Hennecke, Richard Hutchison
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Patent number: 7138602Abstract: A method and apparatus for feeding wire from a source of wire to a weld includes one or more motors disposed adjacent the wire to drive the wire to the weld. A buffer is disposed between the source and an arc end of the torch. Another motor may be disposed near the wire source. A wire tension controller may be provided. The one or more motors advance and retract the wire, and wire is stored, or the path length altered, when the wire is retracted.Type: GrantFiled: December 8, 2004Date of Patent: November 21, 2006Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison
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Publication number: 20060226137Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: ApplicationFiled: June 23, 2006Publication date: October 12, 2006Applicant: Illinois Tools Works Inc.Inventors: Gerd Huismann, Peter Heneoke, Richard Hutchinson, Bruce Albrecht
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Patent number: 7102099Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: GrantFiled: December 5, 2003Date of Patent: September 5, 2006Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Henecke, Richard M. Hutchison, Bruce P. Albrecht
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Publication number: 20060169683Abstract: A method and apparatus for controlling a welding-type power supply includes providing a current wave form having an arc current portion and a short circuit current portion. An arc state is entered by retracting a welding wire, and a short circuit state is entered by advancing the wire. The current enters the arc current portion prior to the creation of the arc and the current enters the short circuit current portion prior to the creation of the short, by coordinating the wave form with the wire retraction. This may be preformed on a wire having a diameter of 2.4 mm or more to a weld and applying a welding current of less than 100 amps, or of less than 35 amps. One current waveform during the arc state includes at least three segments, and the last segment is entered into prior to the short circuit state being entered, and is the same current magnitude as the current magnitude at the start of the short circuit state.Type: ApplicationFiled: March 28, 2006Publication date: August 3, 2006Applicant: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard Hutchison, Lori Kuiper, Tim Matus
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Patent number: 6984806Abstract: A method and apparatus for providing welding-type power include a wire feeder that provides wire to an arc and a power supply that provides power to the arc. A reversible wire feed motor moves the wire to and away from the arc. A controller controls the reversible wire feeder motor to reverse at least once per process cycle, and/or controls the power source to provide a desired mean arc current, and/or controls the reversible motor in response to short detection and short clearing, and/or controls the reversal frequency in response to pool oscillation frequency. A wire feed motor output is slaved to an average of the reversible motor output. The controller may include various control modules, such as a mean arc current control module, and/or a short detection feedback circuit. The reversible motor is a stepper motor, that incrementally turns in a series of steps having a given angle in another embodiment.Type: GrantFiled: July 23, 2002Date of Patent: January 10, 2006Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke
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Patent number: 6969823Abstract: A method and apparatus for controlling a welding-type power supply includes providing a current wave form having an arc current portion and a short circuit current portion. An arc state is entered by retracting a welding wire, and a short circuit state is entered by advancing the wire. The current enters the arc current portion prior to the creation of the arc and the current enters the short circuit current portion prior to the creation of the short, by coordinating the wave form with the wire retraction. This may be preformed on a wire having a diameter of 2.4 mm or more to a weld and applying a welding current of less than 100 amps, or of less than 35 amps. One current waveform during the arc state includes at least three segments, and the last segment is entered into prior to the short circuit state being entered, and is the same current magnitude as the current magnitude at the start of the short circuit state.Type: GrantFiled: July 23, 2002Date of Patent: November 29, 2005Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison, Lori L. Kuiper, Tim A. Matus
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Patent number: 6963048Abstract: A method and apparatus for feeding wire from a source of wire to a weld includes one or more motors disposed adjacent the wire to drive the wire to the weld. A buffer is disposed between the source and an arc end of the torch. Another motor may be disposed near the wire source. A wire tension controller may be provided. The one or more motors advance and retract the wire, and wire is stored, or the path length altered, when the wire is retracted.Type: GrantFiled: July 23, 2002Date of Patent: November 8, 2005Assignee: Illinois Tool Works Inc.Inventors: Gerd Huismann, Peter Hennecke, Richard M. Hutchison
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Publication number: 20050211689Abstract: A method and apparatus for providing welding-type power include a wire feeder that provides wire to an arc and a power supply that provides power to the arc. A reversible wire feed motor moves the wire to and away from the arc. A controller controls the reversible wire feeder motor to reverse at least once per process cycle, and/or controls the power source to provide a desired mean arc current, and/or controls the reversible motor in response to short detection and short clearing, and/or controls the reversal frequency in response to pool oscillation frequency. A wire feed motor output is slaved to an average of the reversible motor output. The controller may include various control modules, such as a mean arc current control module, and/or a short detection feedback circuit. The reversible motor is a stepper motor, that incrementally turns in a series of steps having a given angle in another embodiment.Type: ApplicationFiled: April 15, 2005Publication date: September 29, 2005Inventors: Gerd Huismann, Peter Hennecke
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Publication number: 20050189335Abstract: A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.Type: ApplicationFiled: December 1, 2004Publication date: September 1, 2005Inventors: Gerd Huismann, Peter Henecke, Richard Hutchison, Bruce Albrecht