Patents by Inventor William Hunter Boardman

William Hunter Boardman 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).

  • Tapered rotor-stator air gap for superconducting synchronous machine
    Patent number: 6680549
    Abstract: A synchronous machine is disclosed comprising a rotor coupled to a rotor cooling system; a stator around the rotor and separated from the rotor by an annular gap between the rotor and an inner surface of the stator, wherein the annular gap has a variable thickness along a length of the gap, and a stator ventilation system independent of the rotor cooling system, wherein the stator ventilation system forces cooling gases through the annular gap.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: January 20, 2004
    Assignee: General Electric Company
    Inventors: William Hunter Boardman, Ronald James Chila
  • Low pressure drop lattice area reinforcement for section plate support for cores of generators
    Patent number: 6657357
    Abstract: Section plates in a generator frame are spaced longitudinally or axially one from the other and have ventilation openings for flowing a cooling gas. The ventilation openings comprise in each section plate a plurality of alternating right-side-up and upside-down triangles extending across the bottom of the section plate. The bases of the triangular openings are formed by the housing or wrapper plate enabling free flow unbounded by additional ligaments through the openings in the section plate, reducing the pressure drop and windage losses, while increasing machine efficiency.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: December 2, 2003
    Assignee: General Electric Company
    Inventors: William Hunter Boardman, Richard Nils Dawson, Donald Michael Ronca
  • Tapered rotor-stator air gap for superconducting synchronous machine
    Publication number: 20030080636
    Abstract: A synchronous machine is disclosed comprising a rotor coupled to a rotor cooling system; a stator around the rotor and separated from the rotor by an annular gap between the rotor and an inner surface of the stator, wherein the annular gap has a variable thickness along a length of the gap, and a stator ventilation system independent of the rotor cooling system, wherein the stator ventilation system forces cooling gases through the annular gap.
    Type: Application
    Filed: November 1, 2001
    Publication date: May 1, 2003
    Inventors: William Hunter Boardman, Ronald James Chila
  • Low pressure drop lattice area reinforcement for section plate support for cores of generators
    Publication number: 20020175576
    Abstract: Section plates in a generator frame are spaced longitudinally or axially one from the other and have ventilation openings for flowing a cooling gas. The ventilation openings comprise in each section plate a plurality of alternating right-side-up and upside-down triangles extending across the bottom of the section plate. The bases of the triangular openings are formed by the housing or wrapper plate enabling free flow unbounded by additional ligaments through the openings in the section plate, reducing the pressure drop and windage losses, while increasing machine efficiency.
    Type: Application
    Filed: May 23, 2001
    Publication date: November 28, 2002
    Inventors: William Hunter Boardman, Richard Nils Dawson, Donald Michael Ronca
  • Ventilated series loop blocks and associated tie methods
    Patent number: 6462458
    Abstract: The series loop blocks of an armature end-winding structure are formed with grooves along a portion of their side surfaces to allow air flow to pass through the grooves to the series loop caps. Provision of the grooves on the side surfaces also facilitates machining of the ungrooved side surface portions of the series loop blocks for better fit and assembly between adjacent series loop caps.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: October 8, 2002
    Assignee: General Electric Company
    Inventors: Wei Tong, Christian Lee Vandervort, William Hunter Boardman