Patent US4272685A successfully refreshed from Google Patents.
US4272685A
Expired / Lapsed
US
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Generating means
Assignee: Individual
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Filing: 1976-12-20
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Granted: 1981-06-09
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Expires: 1996-12-20
Abstract
Abstract A generating means as a form of utilizing water to generate electricity. There is a water dam which backs up a sizeable depth and water pressure, and a water outlet pipe near the bottom of the dam. A plurality of electric generating stations are positioned below the dam and utilize water flow through the outlet pipe to drive an electric generator at each station.
Inventors
- 👤 James Toyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:22
CPC Classifications
F; F03; F03B; F03B13/00; F03B13/06; F03B3/00; F03B3/04; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E60/00; Y02E60/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
Apparatus for generating electricity by passing water in a pipe through a series of turbines in which the water traverses from a higher elevation to a lower elevation and in which the turbines include a water flow valve upstream of said turbine in the pipe to alter the flow rate in said pipe, said turbines comprising a housing having a conically tapering configuration truncated at the smaller extent and blades disposed on an inner surface of said housing such that said blades have a continuous, uninterrupted, spirally curved tapering configuration and terminate in the small end of said housing, said housing supported at its small end by bearings and at its large end by a packing ring which supports said housing and allows said housing to rotate, gear teeth disposed about the outer periphery of said housing at its large end, a generator having a toothed armature, and a chain connecting said gear teeth of said housing to said toothed armature so that rotation of said housing provides rotation of said armature thereby generating electricity.
Claim 2
Dependent Claim
175 words
Apparatus for generating electricity by passing water in a pipe through a series of turbines in which the water traverses from a higher elevation to a lower elevation and in which the turbines include a water flow valve upstream of said turbine in the pipe to alter the flow rate in said pipe, said turbines comprising a housing having a conically tapering configuration truncated at the smaller extent and blades disposed on an inner surface of said housing such that said blades have a continuous, uninterrupted, spirally curved tapering configuration and terminate in the small end of said housing, said housing supported at its small end by bearings and at its large end by a packing ring which supports said housing and allows said housing to rotate, gear teeth disposed about the outer periphery of said housing at its large end, a generator having a toothed armature, and a chain connecting said gear teeth of said housing to said toothed armature so that rotation of said housing provides rotation of said armature thereby generating electricity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-08 | 1984-12-08 | 1985-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-08 | 1988-12-08 | 1989-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-08 | 1992-12-08 | 1993-06-09 | $7700.00 | Window Closed / Lapsed |