STEPHEN ALAN FAIRFAX
Pilots at Great Rd, Lincoln Center, MA
License number
Massachusetts A2445370
Issued Date
May 2016
Expiration Date
May 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
148 S Great Rd, Lincoln Center, MA 01773
Professional information
Dc Power System For Marine Vessels
US Patent:
2004010, May 27, 2004
Filed:
Sep 18, 2003
Appl. No.:
10/667219
Inventors:
William Cratty - Bethel CT, US
Stephen Fairfax - Lincoln MA, US
Stephen Fairfax - Lincoln MA, US
International Classification:
B63H019/00
US Classification:
440/113000
Abstract:
An embodiment of the invention is a power system for a marine vessel including a plurality of power sources. A propulsion power distribution unit is coupled to the plurality of primary power sources. A plurality of propulsion devices are coupled to the propulsion power distribution unit. A weaponry power distribution unit is coupled to the propulsion power distribution unit. A plurality of directed energy weapons are coupled to the weaponry power distribution unit.
Load Break Dc Power Disconnect
US Patent:
2004002, Feb 12, 2004
Filed:
Jun 3, 2003
Appl. No.:
10/454182
Inventors:
Stephen Fairfax - Lincoln MA, US
Neal Dowling - Sudbury MA, US
Daniel Healey - Belmont MA, US
David Kolack - Woodbury CT, US
Neal Dowling - Sudbury MA, US
Daniel Healey - Belmont MA, US
David Kolack - Woodbury CT, US
International Classification:
H02H003/00
US Classification:
361/002000
Abstract:
An embodiment of the invention is a DC power disconnect having a first mechanical switch for coupling a DC power module to a first rail of a DC bus and a second mechanical switch for coupling the DC power module to a second rail of the DC bus. A first solid-state switch couples the DC power module to the first rail of the DC bus and is positioned in parallel with the first mechanical switch. A second solid-state switch couples the DC power module to the second rail of the DC bus and is positioned in parallel with the second mechanical switch. A controller initiates closing the first solid-state switch and the second solid-state switch prior to changing state of the first mechanical switch and the second mechanical switch.