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Water turbine system and method of operation

United States Patent

June 15, 2010
View the Complete Patent at the US Patent & Trademark Office
A system for providing electrical power from a current turbine is provided. The system includes a floatation device and a mooring. A water turbine structure is provided having an upper and lower portion wherein the lower portion includes a water fillable chamber. A plurality of cables are used to couple the system where a first cable couples the water turbine to the mooring and a second cable couples the floatation device to the first cable. The system is arranged to allow the turbine structure to be deployed and retrieved for service, repair, maintenance and redeployment.
Costin; Daniel P. (Montpelier, VT)
Northern Power Systems, Inc. (Barre, VT)
12/ 367,994
February 9, 2009
FEDERAL RESEARCH STATEMENT This invention was made with Government support under contract DE-FG02-05ER84318 awarded by the Department of Energy. The Government has certain rights in this invention.