Patents by Inventor David Madsen

David Madsen 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: 20240009749
    Abstract: In certain embodiments, a system includes a welding-type system including circuitry configured to receive direct current (DC) power directly from a distributed DC bus, to generate a current using the received DC power, and to isolate the welding-type system from the distributed DC bus.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 11, 2024
    Inventors: Thomas A. Bunker, Alan A. Manthe, Anthony V. Salsich, Michael David Madsen, Bruce Patrick Albrecht
  • Patent number: 11858073
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: January 2, 2024
    Assignee: Illinois Tool Works Inc.
    Inventors: Michael David Madsen, Quinn William Schartner
  • Patent number: 11766733
    Abstract: In certain embodiments, a system includes a welding-type system including circuitry configured to receive direct current (DC) power directly from a distributed DC bus, to generate a current using the received DC power, and to isolate the welding-type system from the distributed DC bus.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: September 26, 2023
    Assignee: Illinois Tool Works Inc.
    Inventors: Thomas A. Bunker, Alan A. Manthe, Anthony V. Salsich, Michael David Madsen, Bruce Patrick Albrecht
  • Publication number: 20220193808
    Abstract: In certain embodiments, a system includes a welding-type system including circuitry configured to receive direct current (DC) power directly from a distributed DC bus, to generate a current using the received DC power, and to isolate the welding-type system from the distributed DC bus.
    Type: Application
    Filed: November 22, 2021
    Publication date: June 23, 2022
    Inventors: Thomas A. Bunker, Alan A. Manthe, Anthony V. Salsich, Michael David Madsen, Bruce Patrick Albrecht
  • Patent number: 11340791
    Abstract: Apparatus comprises source circuitry to provide data items; buffer circuitry having a set of buffer entries to hold one or more data items, provided by the source circuitry, for delivery to one or more destinations within a respective delivery latency, in which a buffer entry holding an initial data item becomes available to hold another data item in response to delivery of the initial data item to its respective destination; and control circuitry to control acceptance of data items from the source circuitry for holding by the buffer circuitry, the control circuitry being configured to control the buffer circuitry to accept a given data item when: (i) a buffer entry is available to hold the given data item and (ii) the delivery latency of data items including the given data item held by the buffer circuitry is such that at least a threshold number of buffer entries may be made available within no more than a threshold availability period.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: May 24, 2022
    Assignee: Arm Limited
    Inventors: David Madsen, Richard F Bryant
  • Publication number: 20220078965
    Abstract: Materials and methods are disclosed for conglomerating low-purity small seeds, clay-binder, and aeration media into a particle. Through this process a low purity seed does not inhibit seed flow through planting equipment because the seed and associated non-seed parts are formed into particles that have vastly improved flow and aerodynamic properties over untreated seed.
    Type: Application
    Filed: October 28, 2021
    Publication date: March 17, 2022
    Inventors: Matthew David Madsen, Rhett Michael Anderson, Benjamin William Hoose
  • Patent number: 11179794
    Abstract: In certain embodiments, a system includes a welding-type system including circuitry configured to receive direct current (DC) power directly from a distributed DC bus, to generate a current using the received DC power, and to isolate the welding-type system from the distributed DC bus.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: November 23, 2021
    Assignee: Illinois Tool Works Inc
    Inventors: Thomas A. Bunker, Alan A. Manthe, Anthony V. Salsich, Michael David Madsen, Bruce Patrick Albrecht
  • Publication number: 20210218401
    Abstract: Apparatus comprises source circuitry to provide data items; buffer circuitry having a set of buffer entries to hold one or more data items, provided by the source circuitry, for delivery to one or more destinations within a respective delivery latency, in which a buffer entry holding an initial data item becomes available to hold another data item in response to delivery of the initial data item to its respective destination; and control circuitry to control acceptance of data items from the source circuitry for holding by the buffer circuitry, the control circuitry being configured to control the buffer circuitry to accept a given data item when: (i) a buffer entry is available to hold the given data item and (ii) the delivery latency of data items including the given data item held by the buffer circuitry is such that at least a threshold number of buffer entries may be made available within no more than a threshold availability period.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 15, 2021
    Inventors: David MADSEN, Richard F. BRYANT
  • Patent number: 10705022
    Abstract: An optical head for a Raman spectroscopy system includes a housing an input configured to allow input radiation of a selected wavelength into the housing, a first lens disposed in an end of the housing to allow the input radiation to emit from the housing through the first lens and to receive reflected radiation including specular reflection and diffuse reflection, and a second lens disposed in the housing and configured to receive reflected radiation from the first lens. The optical head includes an output configured to receive the reflected radiation from the second lens. The optical head includes a blocking mirror disposed in the housing between the first lens and the second lens. The blocking mirror is configured and positioned to direct the radiation from the input to the first lens. The blocking mirror blocks at least a portion of specular reflection from reaching the second lens but allows diffuse reflection to the reach the second lens.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: July 7, 2020
    Assignee: Goodrich Corporation
    Inventors: David Madsen, Alexander J. Majewski
  • Publication number: 20200171594
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Inventors: Michael David Madsen, Quinn William Schartner
  • Patent number: 10549373
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 4, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Michael David Madsen, Quinn William Schartner
  • Patent number: 10545879
    Abstract: An apparatus and method are provided for handling access requests. The apparatus has processing circuitry for processing a plurality of program threads to perform data processing operations on data, where the operations identify the data using virtual addresses, and the virtual addresses are mapped to physical addresses within a memory system. The cache storage has a plurality of cache entries to store data, an aliasing condition existing when multiple virtual addresses map to the same physical address, and allocation of data into the cache storage being constrained to prevent multiple cache entries of the cache storage simultaneously storing data for the same physical address.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 28, 2020
    Assignee: Arm Limited
    Inventors: Richard F. Bryant, Kim Richard Schuttenberg, David Madsen, Lalit Bansal, Sriram Samynathan
  • Publication number: 20190294554
    Abstract: An apparatus and method are provided for handling access requests. The apparatus has processing circuitry for processing a plurality of program threads to perform data processing operations on data, where the operations identify the data using virtual addresses, and the virtual addresses are mapped to physical addresses within a memory system. The cache storage has a plurality of cache entries to store data, an aliasing condition existing when multiple virtual addresses map to the same physical address, and allocation of data into the cache storage being constrained to prevent multiple cache entries of the cache storage simultaneously storing data for the same physical address.
    Type: Application
    Filed: March 26, 2018
    Publication date: September 26, 2019
    Inventors: Richard F. BRYANT, Kim Richard SCHUTTENBERG, David MADSEN, Lalit BANSAL, Sriram SAMYNATHAN
  • Publication number: 20180059024
    Abstract: An optical head for a Raman spectroscopy system includes a housing an input configured to allow input radiation of a selected wavelength into the housing, a first lens disposed in an end of the housing to allow the input radiation to emit from the housing through the first lens and to receive reflected radiation including specular reflection and diffuse reflection, and a second lens disposed in the housing and configured to receive reflected radiation from the first lens. The optical head includes an output configured to receive the reflected radiation from the second lens. The optical head includes a blocking mirror disposed in the housing between the first lens and the second lens. The blocking mirror is configured and positioned to direct the radiation from the input to the first lens. The blocking mirror blocks at least a portion of specular reflection from reaching the second lens but allows diffuse reflection to the reach the second lens.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 1, 2018
    Inventors: David Madsen, Alexander J. Majewski
  • Publication number: 20160221104
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Application
    Filed: April 11, 2016
    Publication date: August 4, 2016
    Inventors: Michael David Madsen, Quinn William Schartner
  • Patent number: 9308598
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 12, 2016
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Michael David Madsen, Quinn William Schartner
  • Publication number: 20140131330
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Application
    Filed: December 9, 2013
    Publication date: May 15, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Michael David Madsen, Quinn William Schartner
  • Publication number: 20140001167
    Abstract: In certain embodiments, a system includes a welding-type system including circuitry configured to receive direct current (DC) power directly from a distributed DC bus, to generate a current using the received DC power, and to isolate the welding-type system from the distributed DC bus.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Thomas A. Bunker, Alan A. Manthe, Anthony V. Salsich, Michael David Madsen, Bruce Patrick Albrecht
  • Patent number: 8604384
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: December 10, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Michael David Madsen, Quinn William Schartner
  • Publication number: 20100320182
    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Applicant: Illinois Tool Works Inc.
    Inventors: Michael David Madsen, Quinn William Schartner