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US3970409A Expired / Lapsed US ⏱️ 0.0 years remaining

Wind power and flywheel apparatus

Assignee: Lawrence Peska Associates Inc
•
Filing: 1975-03-26
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Granted: 1976-07-20
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Expires: 1995-03-26
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Abstract

Abstract A flywheel is provided having a plurality of radially extending spokes having axial bores. Mercury disposed in the axial bores moves toward the hub at low speeds to decrease the angular inertia of the wheel and toward the rim at higher speeds to increase the angular inertia. The flywheel may be used with the wind machine apparatus described or other rotating apparatus.

Inventors

  • 👤 George Luchuk

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 14:04
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/30; F16F15/31; F03; F03D; F03D7/00; F03D7/06; F03D9/00; F03D9/10; F03D9/12; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/74; Y02E60/00; Y02E60/16; Y02E70/00; Y02E70/30; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2117

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 180 words
Flywheel apparatus having a variable moment of inertia comprising: a generally vertically directed elongated rotary shaft, an annular hub fixedly and coaxially carried about said shaft; a plurality of angularly spaced apart tubular spokes extending outward radially from said hub, said spokes being also upwardly inclined, making an angle of less than ninety degrees with the axis of said shaft, a toroidal hollow rim joined to the upper ends of said spokes in coaxial relationship about said hub in a manner enabling fluid communication between the interior of said spokes and the interior of said rim; the interiors of said spokes and said rim comprising a fluid-tight chamber; a heavy liquid in said chamber of a volulme for normally residing only in the interior of said spokes in the absence of rotation of said shaft; said liquid adapted to climb the interior walls of said upwardly inclined tubular spokes and reach the interior of said rim in response to the rate of rotation of said shaft exceeding a predetermined rate for increasing the moment of inertia of said flywheel apparatus.
Claim 2
Dependent Claim 180 words
Flywheel apparatus having a variable moment of inertia comprising: a generally vertically directed elongated rotary shaft, an annular hub fixedly and coaxially carried about said shaft; a plurality of angularly spaced apart tubular spokes extending outward radially from said hub, said spokes being also upwardly inclined, making an angle of less than ninety degrees with the axis of said shaft, a toroidal hollow rim joined to the upper ends of said spokes in coaxial relationship about said hub in a manner enabling fluid communication between the interior of said spokes and the interior of said rim; the interiors of said spokes and said rim comprising a fluid-tight chamber; a heavy liquid in said chamber of a volulme for normally residing only in the interior of said spokes in the absence of rotation of said shaft; said liquid adapted to climb the interior walls of said upwardly inclined tubular spokes and reach the interior of said rim in response to the rate of rotation of said shaft exceeding a predetermined rate for increasing the moment of inertia of said flywheel apparatus.
Claim 3
Dependent Claim 13 words
The apparatus as described in claim 1 where said heavy liquid is mercury.
Claim 4
Dependent Claim 18 words
The apparatus of claim 2 further comprising wind responsive impeller means on said shaft for rotating said shaft.

References Cited (Backward Citations)

US1398062A Cited
US1810113A Cited
US1919961A Cited
US2085769A Cited
US2341695A Cited
US2404515A Cited
US2576105A Cited
US3248967A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-07-20 1980-01-19 1980-07-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-07-20 1984-01-19 1984-07-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-07-20 1988-01-19 1988-07-20 $7700.00 Window Closed / Lapsed

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