Brian Jeffrey Sullivan
Engineers at 47 St, Boulder, CO
License number
Colorado 43898
Issued Date
Dec 18, 2009
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
3218 47Th St, Boulder, CO 80301
Professional information
Flux Focusing Arrangement For Permanent Magnets, Methods Of Fabricating Such Arrangements, And Machines Including Such Arrangements
US Patent:
2013021, Aug 22, 2013
Filed:
Mar 18, 2013
Appl. No.:
13/845684
Inventors:
Robert Pillsbury - Arlington VA, US
Brian J. Sullivan - Boulder CO, US
Brian J. Sullivan - Boulder CO, US
Assignee:
BOULDER WIND POWER, INC. - Louisville CO
International Classification:
H01F 7/02, H02K 21/12
US Classification:
31015607, 335306
Abstract:
Numerous arrangements for permanent magnets are disclosed that can focus the flux produced by the magnets. Depending on the particular application in which the disclosed designs and techniques are used, efficiency and reliability may be increased by minimizing flux leakage, increasing peak flux density, and shaping the flux fields to improve the effective coercivity of the flux focusing permanent magnet arrangement when loaded, and to achieve customized voltage and current waveforms. The disclosed magnet assemblies may be incorporated into a machine, such as a motor/generator, having windings and may be disposed for movement relative to the windings. The magnet assembly may be mounted on a support formed of one or more ferromagnetic materials, such as a back iron. The disclosed flux focusing magnet assemblies may be formed using a variety of manufacturing methods.
Flux Focusing Arrangement For Permanent Magnets, Methods Of Fabricating Such Arrangements, And Machines Including Such Arrangements
US Patent:
8397369, Mar 19, 2013
Filed:
Apr 3, 2012
Appl. No.:
13/438062
Inventors:
James S. Smith - Lyons CO, US
Robert Pillsbury - Arlington VA, US
Brian Sullivan - Boulder CO, US
Robert Pillsbury - Arlington VA, US
Brian Sullivan - Boulder CO, US
Assignee:
Boulder Wind Power, Inc. - Louisville CO
International Classification:
H02K 15/03, H02K 21/12, H02K 1/27
US Classification:
29596, 29598, 29609, 31015607, 31015638
Abstract:
Numerous arrangements for permanent magnets are disclosed that can focus the flux produced by the magnets. Depending on the particular application in which the disclosed designs and techniques are used, efficiency and reliability may be increased by minimizing flux leakage, increasing peak flux density, and shaping the flux fields to improve the effective coercivity of the flux focusing permanent magnet arrangement when loaded, and to achieve customized voltage and current waveforms. The disclosed magnet assemblies may be incorporated into a machine, such as a motor/generator, having windings and may be disposed for movement relative to the windings. The magnet assembly may be mounted on a support formed of one or more ferromagnetic materials, such as a back iron. The disclosed flux focusing magnet assemblies may be formed using a variety of manufacturing methods.
Flux Focusing Arrangement For Permanent Magnets, Methods Of Fabricating Such Arrangements, And Machines Including Such Arrangements
US Patent:
8400038, Mar 19, 2013
Filed:
Apr 2, 2012
Appl. No.:
13/437639
Inventors:
James S. Smith - Lyons CO, US
Robert Pillsbury - Arlington VA, US
Brian Sullivan - Boulder CO, US
Robert Pillsbury - Arlington VA, US
Brian Sullivan - Boulder CO, US
Assignee:
Boulder Wind Power, Inc. - Louisville CO
International Classification:
H02K 21/12, H02K 1/27
US Classification:
31015607, 31015638, 31015643, 31015645
Abstract:
Numerous arrangements for permanent magnets are disclosed that can focus the flux produced by the magnets. Depending on the particular application in which the disclosed designs and techniques are used, efficiency and reliability may be increased by minimizing flux leakage, increasing peak flux density, and shaping the flux fields to improve the effective coercivity of the flux focusing permanent magnet arrangement when loaded, and to achieve customized voltage and current waveforms. The disclosed magnet assemblies may be incorporated into a machine, such as a motor/generator, having windings and may be disposed for movement relative to the windings. The magnet assembly may be mounted on a support formed of one or more ferromagnetic materials, such as a back iron The disclosed flux focusing magnet assemblies may be formed using a variety of manufacturing methods.
Air Gap Control Systems And Methods
US Patent:
8362731, Jan 29, 2013
Filed:
Apr 12, 2012
Appl. No.:
13/445206
Inventors:
James S. Smith - Lyons CO, US
Matthew B. Jore - Ronan MT, US
Michael A. Kvam - Polson MT, US
David Samsel - Missoula MT, US
Brian J. Sullivan - Boulder CO, US
James David Duford - Polson MT, US
Matthew B. Jore - Ronan MT, US
Michael A. Kvam - Polson MT, US
David Samsel - Missoula MT, US
Brian J. Sullivan - Boulder CO, US
James David Duford - Polson MT, US
Assignee:
Boulder Wind Power, Inc. - Louisville CO
International Classification:
H02P 25/00, H02K 7/09, H02K 1/30
US Classification:
31840041, 310 905, 310420
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.
Air Gap Control Systems And Methods
US Patent:
2013011, May 16, 2013
Filed:
Jan 3, 2013
Appl. No.:
13/733457
Inventors:
Matthew B. Jore - Ronan MT, US
Michael A. Kvam - Polson MT, US
David Samsel - Missoula MT, US
Charles Perry Butterfield - Boulder CO, US
Brian J. Sullivan - Boulder CO, US
James David Duford - Polson MT, US
Michael A. Kvam - Polson MT, US
David Samsel - Missoula MT, US
Charles Perry Butterfield - Boulder CO, US
Brian J. Sullivan - Boulder CO, US
James David Duford - Polson MT, US
Assignee:
BOULDER WIND POWER, INC. - Louisville CO
International Classification:
H02K 21/02
US Classification:
310 90
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.
Devices And Methods For Magnetic Pole And Back Iron Retention In Electromagnetic Machines
US Patent:
2014004, Feb 13, 2014
Filed:
Aug 7, 2012
Appl. No.:
13/568791
Inventors:
Brian J. Sullivan - Boulder CO, US
James David Duford - Polson MT, US
James D. Jore - Polson MT, US
Matthew B. Jore - Ronan MT, US
Michael A. KVAM - Polson MT, US
David Samsel - Missoula MT, US
James S. Smith - Lyons CO, US
James David Duford - Polson MT, US
James D. Jore - Polson MT, US
Matthew B. Jore - Ronan MT, US
Michael A. KVAM - Polson MT, US
David Samsel - Missoula MT, US
James S. Smith - Lyons CO, US
Assignee:
BOULDER WIND POWER, INC. - Louisville CO
International Classification:
H02K 1/28, H02K 15/02
US Classification:
3102611, 29598
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.