Marine propulsion – Wind driven motors
Reexamination Certificate
2005-05-26
2011-10-18
Morano, IV, Joe (Department: 3617)
Marine propulsion
Wind driven motors
Reexamination Certificate
active
08038490
ABSTRACT:
A watercraft, typically a catamaran, has at least two spaced hulls; at least one seat mounted on or between the hulls; a vertical axis wind turbine (“VAWT”, e.g. Savonius) having a rotatable shaft operatively mounted to the hulls aft of the seat; and at least one propeller operatively connected to the wind turbine. A pedal driven propeller manual assist operable by someone sitting in a seat is also desirably provided. A mounting structure for the VAWT shaft includes an aluminum sleeve receiving the shaft; and at least two aluminum struts extending from each of at least four mounting points on the hulls to the sleeve, the struts operatively connected to the sleeve, one strut from each point vertically above the other. At least two counter-rotating VAWTs, with counter-rotating propellers, are preferred. Typically there are first and second airfoil configuration rudders, one operatively connected to the stern of each hull and controlled by a tiller and linkages to move substantially in tandem. First and second intermeshing gears are connected to the propeller and wind turbine shafts, respectively; and a sealed gear box filled with lubricant contains the gears and is connected to the bottom of the sleeve. A safety mechanism may be utilized, including a plurality of strips of material operatively connected to peripheral portions of the wind turbine so as to rotate with the wind turbine and extend radially outwardly therefrom. Desirably the strips of materiel are flexible and hang substantially limply when the turbine not rotating.
REFERENCES:
patent: 1697574 (1929-01-01), Savonius
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patent: 4274011 (1981-06-01), Garfinkle
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“New Rotor Ship Sails in Lightest Wind”, Popular Science, Jul. 1933.
Sanderson, “Experiments With Model Vertical Axis Windmills”, etc., AYRS No. 91, Mar. 1979, pp. 4-13, 30, 31, 46-49, 52-54.
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Sinclair, “Autogiro Boats”, Dec. 5, 1995, www.users.globalnet.co/uk/˜fsinc/yachts/auto.
“Winding Upward with Corks and Turbines” Sep. 20, 2003, Rensselaer School of Eng., www.eng.rpi.edu/soenews/update.do?skinName=print.
Lowe-Wyide Gregory J. T.
Nunes Brendon
Vanderhye Robert A.
Morano, IV Joe
Vanderhye Robert A.
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