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US 4,102,291 AGranted
Electrical generator for a sailboat
OwnerRalf Sebaldinventor
Life of this patent
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Abstract
A sailboat is provided with an electrical generator that is connected to its on-board battery. A propeller immersed in the water is connected via a flexible shaft to the input of this generator so that as the sailboat moves through the water the propeller is rotated to drive the generator and charge the battery. The arrangement may be taffrail mounted so that the propeller is towed or the flexible shaft may extend through a fitting in the hull via a water-tight sleeve.
Claims7
The combination comprising:
- a sailboat displaceable through the water and having a hull partially above and partially below the waterline;
- an electrical generator on said sailboat having an input operable for generating electricity;
- a propeller immersible in the water;
- a bracket mounted on said hull below said waterline;
- a hollow sleeve passing in watertight fashion through said hull between said generator and said propeller and through a location above said waterline;
- and
- a core rotatable in and passing through said sleeve, said core having an inner end connected to said input and an outer end journaled in said bracket for rotation about an axis generally parallel to the normal direction of movement of said sailboat through the water and connected to said propeller, whereby on displacement of said sailboat the water rotates said propeller and thereby rotates said input to generate electricity.
4 more elements
Dependencies are inferred from the claim text.