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

Apparatus for extracting energy from movement of water

Patent 4210821 Issued on July 1, 1980. Estimated Expiration Date: Icon_subject July 1, 1997. 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

341021

365133

1008683

1018678

1036502

1061091

1073214

1078323

1408094

1551113

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Inventor

Assignee

Application

No. 05/779705 filed on 03/21/1977

US Classes:

290/53, TIDE AND WAVE MOTORS290/54, FLUID-CURRENT MOTORS417/332, Pivoted60/398, Utilizing natural energy or having a geographic feature60/500, Having articulated buoyant members60/505Having relatively movable working members

Examiners

Primary: Rubinson, Gene Z.
Assistant: Redman, John W.

Attorney, Agent or Firm

International Classes

F03B 13/00 (20060101)
F03B 13/20 (20060101)

Foreign Application Priority Data

1976-03-31 GB

Abstract

This invention relates to apparatus for converting into useful energy movements imparted thereto by movement of water, preferably sea waves and/or sea currents, the apparatus comprising two or more interconnected members of which at least one is buoyant and which in use of the apparatus are movable relative to each other due to vertical motions of the water, at least one of said members being provided with or connected to means which in use of the apparatus is responsive to horizontal motions of the water, and means for converting the relative movements of said interconnected members and operation of the means responsive to horizontal motions of the water into useful energy, such as electricity.

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