U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Hydroelectric power system

Patent 6051892 Issued on April 18, 2000. Estimated Expiration Date: Icon_subject July 13, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Wave power generator
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System for generating electrical energy utilizing combined water power and combustible fuel sources
Patent #: 4307299
Issued on: 12/22/1981
Inventor: Norton

Waterwheel power generator
Patent #: 4345160
Issued on: 08/17/1982
Inventor: Smith

Pumping-up hydroelectric power plants
Patent #: 4408452
Issued on: 10/11/1983
Inventor: Tsunoda

Hydro electric generating system
Patent #: 4443707
Issued on: 04/17/1984
Inventor: Scieri ,   et al.

High power immersed turbo-generator set having a gear box and external cooling
Patent #: 4445046
Issued on: 04/24/1984
Inventor: Allegre ,   et al.

Water lift system
Patent #: 4514977
Issued on: 05/07/1985
Inventor: Bowen

Micro-hydroelectric power plant
Patent #: 4629904
Issued on: 12/16/1986
Inventor: Rojo, Jr. ,   et al.

Solar energy power system
Patent #: 4739620
Issued on: 04/26/1988
Inventor: Pierce

Variable-speed pumped-storage power generating system
Patent #: 4816696
Issued on: 03/28/1989
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Inventor

Application

No. 114623 filed on 07/13/1998

US Classes:

290/43, Fluid-current motors290/54FLUID-CURRENT MOTORS

Examiners

Primary: Ponomarenko, Nicholas

Attorney, Agent or Firm

International Classes

F03B 017/02
H02N 006/00
H02P 009/04

Abstract

A micro hydroelectric power conversion system for supplying power to and driving an electrical system. The system includes first and second storage tanks each including a base side and a top side and positioned in a stacked relationship with each other such that the top side of the second storage tank faces the base side of the first storage tank. A pipeline connects the base of the first storage tank to the top side of the second storage tank and a penstock including a wheel and an electrical generator connected to the wheel is connected to the pipeline. A rechargeable power supply is connected to receive power from the electrical generator for storing the received power and selectively supplying the received power to the electrical system being driven. A return pipe is connected between the base side of the second storage tank and the top side of the first storage tank and a fluid is positioned within the system. A pump driven by an alternative power source is connected to the return pipe, wherein the first and second storage tanks, pipeline and feedback pipe form a sealed chamber with the fluid contained therein. When the pump is activated the fluid is caused to continually flow from the second storage tank through the return pipe into the first storage tank and through the pipeline back into the second storage tank whereby, as the fluid passes through the pipeline, the wheel is caused to turn driving the electrical generator to supply electrical energy to recharge the rechargeable power source.

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