JONATHAN HAAR
Broker in Cambridge, MA
License number
Massachusetts 132866
Issued Date
Aug 4, 1987
Expiration Date
Apr 25, 2018
Type
Broker
Address
Address
Cambridge, MA 02140
Professional information
Vertical Axis Wind Turbine System
US Patent:
8030792, Oct 4, 2011
Filed:
Mar 12, 2009
Appl. No.:
12/403001
Inventors:
Jonathan Haar - Cambridge MA, US
Assignee:
Eastern Wind Power - Cambridge MA
International Classification:
F03D 9/00
US Classification:
290 44, 290 55
Abstract:
Wind turbine system. The system includes a lower wind speed vertical axis wind turbine operatively connected to a first electrical motor/generator and a higher wind speed vertical axis wind turbine operatively connected to at least one second electrical motor/generator. Electrical power from the first electrical motor/generator is directed to the at least one second electrical motor/generator and mag-lev system to cause the higher wind speed turbine to begin turning.
Vertical Axis Wind Turbine
US Patent:
2011013, Jun 9, 2011
Filed:
Apr 23, 2010
Appl. No.:
12/766578
Inventors:
Jonathan Haar - Cambridge MA, US
Assignee:
EASTERN WIND POWER - Cambridge MA
International Classification:
F03D 3/00
US Classification:
290 55
Abstract:
A vertical axis wind turbine includes an upstanding support structure, a plurality of generators disposed on the support structure, a central shaft in rotatable communication with the generators and positioned along a central axis of the vertical-axis wind turbine, a plurality of struts extending from the central shaft, and a plurality of blades, each blade positioned at an end of a corresponding strut and oriented substantially vertically. The vertical axis wind turbine optionally includes strut ailerons, blade extension elements, or blade ailerons to increase the efficiency and duty cycle of the wind turbine.
Vertical Axis Wind Turbine System
US Patent:
8648483, Feb 11, 2014
Filed:
Aug 31, 2011
Appl. No.:
13/222727
Inventors:
Jonathan Haar - Cambridge MA, US
Assignee:
Eastern Wind Power - Cambridge MA
International Classification:
F03D 9/02
US Classification:
290 44, 290 55
Abstract:
Wind turbine system. The system includes a lower wind speed vertical axis wind turbine operatively connected to a first electrical motor/generator and a higher wind speed vertical axis wind turbine operatively connected to at least one second electrical motor/generator. Electrical power from the first electrical motor/generator is directed to the at least one second electrical motor/generator and mag-lev system to cause the higher wind speed turbine to begin turning. A start-up assistance subsystem which acts like a local wind accelerator and produces a positive torque to assist in the start-up of a vertical axis wind turbine is also provided.
Vertical Axis Wind Turbine
US Patent:
8376688, Feb 19, 2013
Filed:
Mar 31, 2011
Appl. No.:
13/077547
Inventors:
Jonathan Haar - Cambridge MA, US
Assignee:
Eastern Wind Power - Cambridge MA
International Classification:
F03D 3/00
US Classification:
415 66, 415 60, 415905, 415907
Abstract:
A power-generation system is provided. The system includes a plurality of vertical axis wind turbines (VAWTs). Each VAWT includes an upstanding support structure, a central shaft positioned along a central axis of the VAWT, a plurality of struts extending from the central shaft, and a plurality of blades, each blade positioned at an end of a corresponding strut and oriented substantially vertically. The VAWTs are grouped in sets that are arranged in rows, and are separated from each adjacent VAWT by a distance of approximately one rotor diameter.
Vertical Axis Wind Turbine
US Patent:
8373294, Feb 12, 2013
Filed:
Jul 6, 2011
Appl. No.:
13/177242
Inventors:
Jonathan Haar - Cambridge MA, US
Assignee:
Eastern Wind Power - Cambridge MA
International Classification:
F03D 7/00
US Classification:
290 44
Abstract:
A vertical axis wind turbine including a generator, a central shaft in rotatable communication with the generator and positioned along a central axis of the vertical-axis wind turbine, a plurality of blades, and a power management subsystem operable to induce a forward current in the generator when the measured wind speed is above a minimum speed required for the blades to rotate but below the wind speed required to overcome a static friction exerted on the central shaft and the blades.
Vertical Axis Wind Turbine
US Patent:
8258647, Sep 4, 2012
Filed:
Mar 31, 2011
Appl. No.:
13/077495
Inventors:
Jonathan Haar - Cambridge MA, US
Assignee:
Eastern Wind Power - Cambridge MA
International Classification:
F03D 7/00
US Classification:
290 55, 290 44
Abstract:
A vertical axis wind turbine includes an upstanding support structure, a plurality of generators disposed on the support structure, a central shaft in rotatable communication with the generators and positioned along a central axis of the vertical-axis wind turbine, a plurality of struts extending from the central shaft, and a plurality of blades, each blade positioned at an end of a corresponding strut and oriented substantially vertically. The vertical axis wind turbine optionally includes strut ailerons, blade extension elements, or blade ailerons to increase the efficiency and duty cycle of the wind turbine.