Patents by Inventor Christopher Hsu

Christopher Hsu 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).

  • Publication number: 20200337407
    Abstract: Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Inventor: Christopher Hsu
  • Publication number: 20200316719
    Abstract: Systems and methods for the manufacture of a solid wire using additive manufacturing techniques are disclosed. In one embodiment, a fine powdery material is sintered or melted or soldered or metallurgically bonded onto a metal strip substrate in a compacted solid form or a near-net shape (e.g., a near-net solid wire shape) before being turned into a final product through forming or drawing dies.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventor: Christopher Hsu
  • Patent number: 10792682
    Abstract: Present embodiments include a system that includes a welding tool configured to receive a welding wire from a wire feeder, to receive welding power from a power source, and to supply the welding wire to a workpiece during a welding process. The system also includes a mechanical oscillation system configured to mechanically oscillate a structural component toward and away from the workpiece. The structural component is external to the wire feeder and the power source. The system further comprises control circuitry configured to control the welding power based on feedback relating to the welding process.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: October 6, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Todd Earl Holverson, Christopher Hsu
  • Patent number: 10773331
    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example welding-type power supply includes a power converter, a receiver circuit, and a controller. The power converter converts input power to welding-type power based on a weld voltage setpoint and to output the welding-type power via a weld circuit. The receiver circuit receives a communication via the weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit. The communication includes weld voltage feedback information measured at a device remote from the power supply while the current is flowing through the weld circuit. The controller controls the welding-type power output by the power converter according to a voltage feedback loop using the weld voltage feedback information to regulate a weld voltage at the remote device to the weld voltage setpoint.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: September 15, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Mehn, Christopher Hsu, Maxwell Brock, Quinn William Schartner
  • Publication number: 20200254555
    Abstract: Methods and apparatus to determine heat input to a weld are disclosed. An example welding-type power supply includes a power converter to convert input power to output welding-type power, and a controller configured to: during a welding-type operation, calculate average instantaneous power values of the welding-type operation for discrete, non-overlapping time periods by multiplying voltage measurements and corresponding current measurements; identify an end of the welding-type operation; determine a duration of the welding-type operation; calculate a total average instantaneous power of the welding-type operation based on the average instantaneous power values for the time periods and the duration of the welding-type operation; and determine whether an acceptable range of the welding-type operation is exceeded based on the total average instantaneous power and the duration of the welding-type operation.
    Type: Application
    Filed: April 28, 2020
    Publication date: August 13, 2020
    Inventors: Christopher Hsu, Jake Zwayer
  • Patent number: 10730140
    Abstract: Hybrid manual and automated welding systems and methods are described. A hand-held welding tool is manually positioned to engage a workpiece. The hand-held welding tool includes a motion device that is configured to automatically move a contact tip or a welding heat source during a welding operation after a manual triggering. A welding arc is automatically and repeatedly turned off and on to make a string of overlapping and equally spaced spot welds while the contact tip or the welding heat source moves from the first position to the second position.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: August 4, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher Hsu
  • Patent number: 10730132
    Abstract: A consumable filler metal delivery system includes a reciprocating wire feeding gear assembly configured to move a wire forward and backward with a net forward motion and a motor configured to drive the reciprocating wire feeding gear assembly, wherein the motor is configured to rotate only in one direction during operation of the consumable filler metal delivery system.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 4, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Christopher Hsu, Dennis Roland Sigl, Herbert Alexius Bankstahl
  • Patent number: 10730130
    Abstract: Apparatuses, systems, and/or methods relate to a welding system that provides a field former for use in welding applications. The welding system includes a welding torch that includes one or more coil windings through which flows current that forms a magnetic field. The magnetic field is concentric to the tool center point. An arc is formed between the electrode and a workpiece. The magnetic field forces the arc in a center of the welding torch or the one or more coiled windings.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 4, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher Hsu
  • Publication number: 20200223006
    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example weld circuit communications device includes a receiver circuit, a processor, and a local communications adapter. The receiver circuit to receive a communication via a weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit, the communication including weld voltage feedback information measured at a device remote from a power supply and remote from the weld circuit communications device while the current is flowing through the weld circuit. The processor generates power supply control information based on the weld voltage feedback information. The local communications adapter transmits the power supply control information to control welding-type power output by a power converter to regulate a weld voltage to a weld voltage setpoint.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 16, 2020
    Inventors: Peter Mehn, Christopher Hsu, Maxwell Brock, Quinn William Schartner
  • Patent number: 10688596
    Abstract: Systems and methods for the manufacture of a solid wire using additive manufacturing techniques are disclosed. In one embodiment, a fine powdery material is sintered or melted or soldered or metallurgically bonded onto a metal strip substrate in a compacted solid form or a near-net shape (e.g., a near-net solid wire shape) before being turned into a final product through forming or drawing dies.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 23, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher Hsu
  • Patent number: 10675698
    Abstract: In certain embodiments, a welding wire delivery system includes a non-rotational actuator configured to engage, disengage, and move welding wire. In certain embodiments, the welding wire delivery system includes a piezoelectric walk motor, a piezoelectric worm drive, a piezoelectric wave drive, a shape memory alloy, a solenoid piston, a linear actuator or motor, or a voice coil actuator.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: June 9, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher Hsu
  • Patent number: 10675699
    Abstract: A contact tip assembly with a preheating tip comprises a welding power source configured to provide welding current to a welding circuit, the welding circuit comprising a welding electrode and a first contact tip of a welding torch. The assembly also includes an electrode preheating circuit configured to provide preheating current through a portion of the welding electrode via a second contact tip of the welding torch, and a voltage sense circuit to monitor a voltage drop across the two contact tips, and the electrode preheating circuit adjusts at least one of the first current or the preheating current based on the voltage drop.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: June 9, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Christopher Hsu, Dennis Sigl, Jake Zwayer, James Lee Uecker, Jon Michael Patterson
  • Publication number: 20200156172
    Abstract: A welding method includes feeding a welding electrode axially from a welding torch, moving the welding electrode radially in a desired pattern with respect to a central axis of the welding torch by a motion control assembly within the welding torch, transmitting from control circuitry a signal corresponding to a position of the welding electrode relative to a weld joint or weld pool, advancing the welding torch or a workpiece to establish a weld, and transferring material from the welding electrode to a first location in an area of the weld pool. The welding electrode moves radially while feeding the welding electrode from the welding torch, the material from the welding electrode is transferred to the first location during a first cycle of the desired pattern, and the first location is controlled based at least in part on the signal.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Inventors: Christopher Hsu, Richard Martin Hutchison, Kevin Michael Scott, Kevin Pagano, James Lee Uecker
  • Publication number: 20200139468
    Abstract: An additive manufacturing system includes an additive manufacturing tool configured to receive a plurality of metallic anchoring materials and to supply a plurality of droplets to a part, and a controller configured to independently control the composition, formation, and application of each droplet to the plurality of droplets to the part. The plurality of droplets is configured to build up the part. Each droplet of the plurality of droplets includes at least one metallic anchoring material of the plurality of metallic anchoring materials.
    Type: Application
    Filed: December 19, 2019
    Publication date: May 7, 2020
    Inventors: Bruce Patrick Albrecht, Christopher Hsu
  • Patent number: 10632557
    Abstract: Methods and apparatus to determine heat input to a weld are disclosed. An example welding-type power supply includes a power converter to convert input power to output welding-type power, and a controller configured to: during a welding-type operation, calculate average instantaneous power values of the welding-type operation for discrete, non-overlapping time periods by multiplying voltage measurements and corresponding current measurements; identify an end of the welding-type operation; determine a duration of the welding-type operation; calculate a total average instantaneous power of the welding-type operation based on the average instantaneous power values for the time periods and the duration of the welding-type operation; and output a first value representative of the total average instantaneous power and a second value representative of the duration of the welding-type operation.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: April 28, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Christopher Hsu, Jake Zwayer
  • Patent number: 10603735
    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example weld circuit communications device includes a receiver circuit, a processor, and a local communications adapter. The receiver circuit to receive a communication via a weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit, the communication including weld voltage feedback information measured at a device remote from a power supply and remote from the weld circuit communications device while the current is flowing through the weld circuit. The processor generates power supply control information based on the weld voltage feedback information. The local communications adapter transmits the power supply control information to control welding-type power output by a power converter to regulate a weld voltage to a weld voltage setpoint.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: March 31, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Mehn, Christopher Hsu, Maxwell Brock, Quinn William Schartner
  • Publication number: 20200055148
    Abstract: A machine-vision-assisted welding system comprises welding equipment, a time of Flight (ToF) camera operable to generate a three-dimensional depth map of a welding scene, digital image processing circuitry operable to extract welding information from the 3D depth map, and circuitry operable to control a function of the welding equipment based on the extracted welding information. The welding equipment may comprise, for example, arc welding equipment that forms an arc during a welding operation, and a light source of the ToF camera may emit light whose spectrum comprises a peak that is centered at a first wavelength, wherein the first wavelength is selected such that a power of the peak is at least a threshold amount above a power of light from the arc at the first wavelength.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 20, 2020
    Inventor: Christopher Hsu
  • Publication number: 20200055136
    Abstract: Embodiments described herein include wireless control of a welding power supply via portable electronic devices, such as dedicated original equipment manufacturer (OEM) welding remote devices, cellular radio telephones, satellite radio telephones, laptops computers, tablet computers, and so forth. In particular, operating parameters and statuses of the welding power supply may be modified by the portable electronic device, as well as be displayed on the portable electronic device. A pairing procedure may be used to pair the welding power supply and the portable electronic device in a wireless communication network. Furthermore, in certain embodiments, a method of providing location services for the welding power supply includes utilizing location data for the portable electronic device controlling the welding power supply as an approximation for the location of the welding power supply.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 20, 2020
    Inventors: Marc Lee Denis, Christopher Hsu
  • Publication number: 20200046059
    Abstract: Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 13, 2020
    Inventor: Christopher Hsu
  • Patent number: 10543549
    Abstract: An additive manufacturing system includes an additive manufacturing tool configured to receive a plurality of metallic anchoring materials and to supply a plurality of droplets to a part, and a controller configured to independently control the composition, formation, and application of each droplet to the plurality of droplets to the part. The plurality of droplets is configured to build up the part. Each droplet of the plurality of droplets includes at least one metallic anchoring material of the plurality of metallic anchoring materials.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: January 28, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Bruce Patrick Albrecht, Christopher Hsu