US3980894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow tubes for producing electric energy
Assignee: Individual
•
Filing: 1974-07-02
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Granted: 1976-09-14
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Expires: 1994-07-02
Abstract
Abstract An apparatus for producing electrical energy from unused, wasted, running rivers, ocean tides, and the like without creating any air pollution or harming the environment; the apparatus consisting of large tubes sunken below the water so that the water can flow through, and turbine or impeller blades inside the tubes being turned by the water movement, the impellers driving electric generators which are connected by electric cables to power plants on shore from where the electrical power is distributed for consumption.
Inventors
- 👤 Philip Vary
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:06
CPC Classifications
F; F03; F03B; F03B17/00; F03B17/06; F03B17/061; F03B13/00; F03B13/10; F03B13/105; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E10/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
An electricity generating power plant, comprising a tube submerged in water in combination with an electric generator mounted therein having a rotatable shaft in said tube in combination with an impeller mounted on said shaft whereby water flow through said tube provides an impelling force against said impeller in further combination with circumferentially spaced ports through said tube upstream of said impeller, further including a conical baffle surrounding said ports and flaring externally from said tube in an upstream direction whereby water flow external to said tube is directed into said ports and against the impeller to provide an impelling force, additional to that provided by said water flow through said tube, including a second impeller mounted on said axle spaced upstream from said first baffle.
Claim 2
Dependent Claim
126 words
An electricity generating power plant, comprising a tube submerged in water in combination with an electric generator mounted therein having a rotatable shaft in said tube in combination with an impeller mounted on said shaft whereby water flow through said tube provides an impelling force against said impeller in further combination with circumferentially spaced ports through said tube upstream of said impeller, further including a conical baffle surrounding said ports and flaring externally from said tube in an upstream direction whereby water flow external to said tube is directed into said ports and against the impeller to provide an impelling force, additional to that provided by said water flow through said tube, including a second impeller mounted on said axle spaced upstream from said first baffle.
Claim 3
Dependent Claim
145 words
An electrically generating power plant, comprising a tube submerged in water in combination with an electric generator mounted therein having a rotatable shaft in said tube in combination with an impeller mounted on said shaft whereby water flow through said tube provides an impelling force against said impeller is in further combination with circumferentially spaced ports through said tube upstream of said impeller, further including a conical baffle surrounding said ports and flaring externally from said tube in an upstream direction whereby water flow external to said tube is directed into said ports against the tube is directed into said ports against the impeller to provide an impelling force additional to that provided by said water flow through said tube, wherein the impeller axially slidable between two portions of said shaft, wherein one of said portions permits rotation of said impeller relative to said shaft.
Claim 4
Dependent Claim
145 words
An electrically generating power plant, comprising a tube submerged in water in combination with an electric generator mounted therein having a rotatable shaft in said tube in combination with an impeller mounted on said shaft whereby water flow through said tube provides an impelling force against said impeller is in further combination with circumferentially spaced ports through said tube upstream of said impeller, further including a conical baffle surrounding said ports and flaring externally from said tube in an upstream direction whereby water flow external to said tube is directed into said ports against the tube is directed into said ports against the impeller to provide an impelling force additional to that provided by said water flow through said tube, wherein the impeller axially slidable between two portions of said shaft, wherein one of said portions permits rotation of said impeller relative to said shaft.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |