Inventor files patent application for new hydro technology

The U.S. Patent &Trademark Office published a patent application filed by inventor Timothy Cresci for a new hydropower technology he calls the inverted siphon down current cone exhaust.

The application, published Oct. 9, describes a hydropower plant that features a fluid intake, a fluid exhaust, and, in between, a fluid engine called an inverted siphon. The invention also features a device that increases the fluid’s velocity.

By mixing and matching four machines �- a wedge, flow-constriction device, inverted siphon, and down current cone accelerating device -� a push-pull effect is created within the siphon, powering a turbine within the fluid path.

The application states the technology can be used with flows in oceans, lakes, tidal basins, rivers, and other bodies of water to generate electricity.

The fluid accelerating device and other features of the invention are based upon the concept of the Bernoulli effect, according to the application. That effect states the sum of static pressure and dynamic pressure remains constant in an incompressible fluid, such as water. As dynamic pressure increases from an increase in velocity, then static pressure decreases, creating a sort of suction effect relative to lower-velocity regions of the fluid.

The application states a wedge could be lowered into a fluid flow, in a manner similar to an outboard engine on a boat or a kitchen food mixer lowered into a bowl. It adds, a cone exhaust, wedge, and fluid accelerating device could be lowered from a ship and used to charge batteries.

The patent application is available electronically in the patent applications section of the patent office Internet site,, by entering the application’s publication number 20080247860.

A patent examiner is to review the application to determine whether the invention meets criteria for a patent. Patents generally expire 20 years after the filing date of the application. Cresci, president of Hydro-Interactive, Bal Harbour, Fla., filed the application Jan. 18.

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