Patents by Inventor James David Duford

James David Duford 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).

  • Patent number: 10193429
    Abstract: In one embodiment, an apparatus includes a first member that supports a magnetic flux carrying member and a second member that supports a magnetic flux generating member disposed for movement relative to the first member. An air gap control system is coupled to at least one of the first member or the second member and includes an air gap control device that is separate from a primary magnetic flux circuit formed between the first member and the second member. The air gap control device is configured to exert a force on one of the first and second members in response to movement of the other of the first and second members in a direction that reduces a distance between the first and second members to maintain a minimum distance between the first and second members and/or substantially center the one of the first and second members within the other.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: January 29, 2019
    Assignee: Boulder Wind Power, Inc.
    Inventors: James S. Smith, Matthew B. Jore, Michael A. Kvam, David Samsel, Charles Perry Butterfield, Jr., Brian J. Sullivan, James David Duford
  • Publication number: 20180219445
    Abstract: An axial rotary energy device including a segmented stator assembly having a plurality of segments arranged in an annular array. Each stator segment is constructed by stacking a plurality of PCB power conductor layers and a plurality of PCB series layers. Each layer having radial conductors extending from an inner via to an outer via. The vias electrically connect selected radial conductors of the series conductor layer and power conductor layer. Each power conductor layer includes a pair of positive and negative terminal vias for one phase of the electric current connected to selected outer vias. A daughter PCB layer electrically connects two adjacent segments together by having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to a positive terminal via located in an adjacent segment together with a current conductor electrically connecting the two terminal vias together.
    Type: Application
    Filed: September 11, 2017
    Publication date: August 2, 2018
    Applicant: Boulder Wind Power, Inc.
    Inventors: Matthew B. JORE, James David DUFORD, Michael KVAM, Lincoln M. JORE, David SAMSEL, James D. JORE
  • Patent number: 9762099
    Abstract: An axial rotary energy device including a segmented stator assembly having a plurality of segments arranged in an annular array. Each stator segment is constructed by stacking a plurality of PCB power conductor layers and a plurality of PCB series layers. Each layer having radial conductors extending from an inner via to an outer via. The vias electrically connect selected radial conductors of the series conductor layer and power conductor layer. Each power conductor layer includes a pair of positive and negative terminal vias for one phase of the electric current connected to selected outer vias. A daughter PCB layer electrically connects two adjacent segments together by having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to a positive terminal via located in an adjacent segment together with a current conductor electrically connecting the two terminal vias together.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 12, 2017
    Assignee: Boulder Wind Power, Inc.
    Inventors: Matthew B. Jore, James David Duford, Michael Kvam, Lincoln M. Jore, David Samsel, James D. Jore
  • Publication number: 20170040878
    Abstract: In one embodiment, an apparatus includes a first member that supports a magnetic flux carrying member and a second member that supports a magnetic flux generating member disposed for movement relative to the first member. An air gap control system is coupled to at least one of the first member or the second member and includes an air gap control device that is separate from a primary magnetic flux circuit formed between the first member and the second member. The air gap control device is configured to exert a force on one of the first and second members in response to movement of the other of the first and second members in a direction that reduces a distance between the first and second members to maintain a minimum distance between the first and second members and/or substantially center the one of the first and second members within the other.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Applicant: Boulder Wind Power, Inc.
    Inventors: James S. SMITH, Matthew B. JORE, Michael A. KVAM, David SAMSEL, Charles Perry BUTTERFIELD, JR., Brian J. SULLIVAN, James David DUFORD
  • Patent number: 9479038
    Abstract: In one embodiment, an apparatus includes a first member that supports a magnetic flux carrying member and a second member that supports a magnetic flux generating member disposed for movement relative to the first member. An air gap control system is coupled to at least one of the first member or the second member and includes an air gap control device that is separate from a primary magnetic flux circuit formed between the first member and the second member. The air gap control device is configured to exert a force on one of the first and second members in response to movement of the other of the first and second members in a direction that reduces a distance between the first and second members to maintain a minimum distance between the first and second members and/or substantially center the one of the first and second members within the other.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: October 25, 2016
    Assignee: Boulder Wind Power, Inc.
    Inventors: James S. Smith, Matthew B. Jore, Michael A. Kvam, David Samsel, Charles Perry Butterfield, Brian J. Sullivan, James David Duford
  • Patent number: 9154024
    Abstract: Systems and methods for improved generators are described. One embodiment includes an assembly for an axial flux generator, the assembly comprising an arc-shaped rotor section that includes a rotor support configured to rotate around an axis of a generator, and an at least one rotor element for power generation that is connected to the rotor support; an arc-shaped stator section comprising a stator support and an at least one stator element for power generation connected to the stator support; wherein the rotor section and the stator section are configured to provide an axial air gap between the at least one rotor element and the at least one stator element, and wherein the at least one rotor element and the at least one stator element are positioned to be at substantially the same radial distance from the axis of the generator.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: October 6, 2015
    Assignee: Boulder Wind Power, Inc.
    Inventors: Matthew B. Jore, Lincoln Jore, Michael A. Kvam, James D. Jore, David Samsel, James David Duford, James S. Smith
  • Patent number: 8823241
    Abstract: An axial rotary energy device including a segmented stator assembly having a plurality of segments arranged in an annular array. Each stator segment is constructed by stacking a plurality of PCB power conductor layers and a plurality of PCB series layers. Each layer having radial conductors extending from an inner via to an outer via. The vias electrically connect selected radial conductors of the series conductor layer and power conductor layer. Each power conductor layer includes a pair of positive and negative terminal vias for one phase of the electric current connected to selected outer vias. A daughter PCB layer electrically connects two adjacent segments together by having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to a positive terminal via located in an adjacent segment together with a current conductor electrically connecting the two terminal vias together.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: September 2, 2014
    Assignee: Boulder Wind Power, Inc.
    Inventors: Matthew B. Jore, James David Duford, Michael Kvam, Lincoln M. Jore, David Samsel, James D. Jore
  • Publication number: 20140175922
    Abstract: An axial rotary energy device including a segmented stator assembly having a plurality of segments arranged in an annular array. Each stator segment is constructed by stacking a plurality of PCB power conductor layers and a plurality of PCB series layers. Each layer having radial conductors extending from an inner via to an outer via. The vias electrically connect selected radial conductors of the series conductor layer and power conductor layer. Each power conductor layer includes a pair of positive and negative terminal vias for one phase of the electric current connected to selected outer vias. A daughter PCB layer electrically connects two adjacent segments together by having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to a positive terminal via located in an adjacent segment together with a current conductor electrically connecting the two terminal vias together.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Boulder Wind Power, Inc.
    Inventors: Matthew B. Jore, James David Duford, Michael Kvam, Lincoln M. Jore, David Samsel, James D. Jore
  • Publication number: 20140152136
    Abstract: In some embodiments, an electromagnetic machine includes a rotor element configured for movement relative to a stator. The rotor element includes a magnetic support, a magnetic pole assembly, and a retainer. The magnetic support is formed, at least in part, from a ferromagnetic material and is configured to be coupled to the magnetic support. The retainer is coupled to both the magnetic support and the magnetic pole assembly. The retainer is further configured to be in a first state during a first time period and a second state during a second time period, after the first time period, such that during the second time period, the coupling of the magnetic pole assembly to the magnetic support is maintained.
    Type: Application
    Filed: December 3, 2012
    Publication date: June 5, 2014
    Applicant: BOULDER WIND POWER, INC.
    Inventors: James David Duford, Marc Eichinger, Stephane Eisen, Michael A. Kvam, Derek Petch, David Samsel, James S. Smith, Brian J. Sullivan
  • Patent number: 8716913
    Abstract: In some embodiments, an electromagnetic machine includes a rotor element configured for movement relative to a stator. The rotor element includes a support member, a backing member, and a magnetic pole assembly. The support member includes a first coupling portion. The backing member is formed, at least in part, from a ferromagnetic material and the magnetic pole assembly is configured to be coupled to the backing member. The magnetic pole assembly and/or the backing member include a second coupling portion configured to removably couple the backing member and the magnetic pole assembly collectively to the first coupling portion of the support member.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: May 6, 2014
    Assignee: Boulder Wind Power, Inc.
    Inventors: Michael A. Kvam, Brian J. Sullivan, James David Duford, James D. Jore, Matthew B. Jore, David Samsel, James S. Smith
  • Publication number: 20140049130
    Abstract: An axial rotary energy device including a segmented stator assembly having a plurality of segments arranged in an annular array. Each stator segment is constructed by stacking a plurality of PCB power conductor layers and a plurality of PCB series layers. Each layer having radial conductors extending from an inner via to an outer via. The vias electrically connect selected radial conductors of the series conductor layer and power conductor layer. Each power conductor layer includes a pair of positive and negative terminal vias for one phase of the electric current connected to selected outer vias. A daughter PCB layer electrically connects two adjacent segments together by having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to a positive terminal via located in an adjacent segment together with a current conductor electrically connecting the two terminal vias together.
    Type: Application
    Filed: January 15, 2010
    Publication date: February 20, 2014
    Inventors: Matthew B. Jore, James David Duford, Michael Kvam, Lincoln M. Jore, David Samsel, James D. Jore
  • Publication number: 20140042868
    Abstract: In some embodiments, an electromagnetic machine includes a rotor element configured for movement relative to a stator. The rotor element includes a support member, a backing member, and a magnetic pole assembly. The support member includes a first coupling portion. The backing member is formed, at least in part, from a ferromagnetic material and the magnetic pole assembly is configured to be coupled to the backing member. The magnetic pole assembly and/or the backing member include a second coupling portion configured to removably couple the backing member and the magnetic pole assembly collectively to the first coupling portion of the support member.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: BOULDER WIND POWER, INC.
    Inventors: Brian J. Sullivan, James David Duford, James D. Jore, Matthew B. Jore, Michael A. KVAM, David Samsel, James S. Smith
  • Patent number: 8362731
    Abstract: In one embodiment, an apparatus includes a first member that supports a magnetic flux carrying member and a second member that supports a magnetic flux generating member disposed for movement relative to the first member. An air gap control system is coupled to at least one of the first member or the second member and includes an air gap control device that is separate from a primary magnetic flux circuit formed between the first member and the second member. The air gap control device is configured to exert a force on one of the first and second members in response to movement of the other of the first and second members in a direction that reduces a distance between the first and second members to maintain a minimum distance between the first and second members and/or substantially center the one of the first and second members within the other.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: January 29, 2013
    Assignee: Boulder Wind Power, Inc.
    Inventors: James S. Smith, Matthew B. Jore, Michael A. Kvam, David Samsel, Charles Perry Butterfield, Jr., Brian J. Sullivan, James David Duford
  • Publication number: 20120217831
    Abstract: Systems and methods for improved generators are described. One embodiment includes an assembly for an axial flux generator, the assembly comprising an arc-shaped rotor section that includes a rotor support configured to rotate around an axis of a generator, and an at least one rotor element for power generation that is connected to the rotor support; an arc-shaped stator section comprising a stator support and an at least one stator element for power generation connected to the stator support; wherein the rotor section and the stator section are configured to provide an axial air gap between the at least one rotor element and the at least one stator element, and wherein the at least one rotor element and the at least one stator element are positioned to be at substantially the same radial distance from the axis of the generator.
    Type: Application
    Filed: June 2, 2011
    Publication date: August 30, 2012
    Inventors: Matthew B. Jore, Lincoln Jore, Michael A. Kvam, James D. Jore, David Samsel, James David Duford, James S. Smith
  • Publication number: 20110273048
    Abstract: An axial rotary energy device including a segmented stator assembly having a plurality of segments arranged in an annular array. Each stator segment is constructed by stacking a plurality of PCB power conductor layers and a plurality of PCB series layers. Each layer having radial conductors extending from an inner via to an outer via. The vias electrically connect selected radial conductors of the series conductor layer and power conductor layer. Each power conductor layer includes a pair of positive and negative terminal vias for one phase of the electric current connected to selected outer vias. A daughter PCB layer electrically connects two adjacent segments together by having a first portion electrically connected to a negative terminal via located in one segment and a second portion electrically connected to a positive terminal via located in an adjacent segment together with a current conductor electrically connecting the two terminal vias together.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 10, 2011
    Inventors: Matthew B. Jore, James David Duford, Michael Kvam, Lincoln M. Jore, David Samsel, James D. Jore
  • Publication number: 20020166240
    Abstract: A power tool (20) is provided. The power tool includes a housing (22), a base plate (28) coupled to the housing and having a base plate width. The power tool also includes a motor assembly (24) attached to the housing and coupled to a tool connector adapted to releasably receive a tool (74). The motor assembly and housing having a width W that is at most substantially equal to the base plate width. Further, the motor assembly having a length (86) and diameter (84) ratio that is at least 1:1.5.
    Type: Application
    Filed: April 12, 2001
    Publication date: November 14, 2002
    Applicant: Jore Corporation
    Inventors: James David Duford, Matthew B. Jore, David R. Samsel, Michael Alan Kvam, Chad Michael Komlofske, Nathan Cary Cantlon, Brian Patrick Havlovick, Jack Howard Bishop