US5599172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind energy conversion system
Assignee: Individual
•
Filing: 1995-07-31
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Granted: 1997-02-04
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Expires: 2015-07-31
Abstract
Abstract A wind energy conversion system employs a wind turbine means mounted on a frame, said wind turbine having a venturi configured shroud with a core and a plurality of blades fixedly mounted between the core and the throat of the venturi. The blades have an air foil design consisting essentially of an inverted pan-shaped, cross-sectional configuration to create high torque at low air speed.
Inventors
- 👤 Francis J. McCabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:15
CPC Classifications
F; F03; F03D; F03D1/00; F03D1/06; F03D1/0608; F03D13/00; F03D13/20; F03D9/00; F03D9/20; F03D9/28; F05; F05B; F05B2240/00; F05B2240/10; F05B2240/13; F05B2240/133; F05B2240/20; F05B2240/21; F05B2240/221; F05B2240/2211; F05B2240/30; F05B2240/301; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/728; Y02E60/00; Y02E60/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A wind energy conversion system comprising a wind turbine means, a transmission means connected to said wind turbine means for transmitting the energy from said wind turbine means to an air compression means connected to said transmission means for compressing air; said wind turbine means comprising a venturi-shaped shroud having an inner core and a plurality of blades fixedly connected between said inner core and said shroud; at least one of said blades having a cross-sectional shape comprising a planar face portion and leading and trailing edges associated with opposite ends of the face portion to form an essentially cross-sectional pan-shaped structure disposed in an inverted position.
Claim 2
Dependent Claim
107 words
A wind energy conversion system comprising a wind turbine means, a transmission means connected to said wind turbine means for transmitting the energy from said wind turbine means to an air compression means connected to said transmission means for compressing air; said wind turbine means comprising a venturi-shaped shroud having an inner core and a plurality of blades fixedly connected between said inner core and said shroud; at least one of said blades having a cross-sectional shape comprising a planar face portion and leading and trailing edges associated with opposite ends of the face portion to form an essentially cross-sectional pan-shaped structure disposed in an inverted position.
Claim 3
Dependent Claim
25 words
The invention of claim 1 wherein the blade with the described cross-section has a flange extending from the trailing edge back toward the leading edge.
Claim 4
Dependent Claim
29 words
The invention of claim 1 wherein there are a plurality of said blades positioned at approximately 32 degree angles to the direction of air flow through said turbine means.
Claim 5
Dependent Claim
22 words
The invention of claim 1 wherein said shroud has a cylindrically shaped trailing portion extending from the trailing edge of the venturi.
Claim 6
Dependent Claim
15 words
The invention of claim 1 wherein the inner core forms a torroid with said shroud.
Claim 7
Dependent Claim
124 words
The invention of claim 1 further comprising a frame and mounting means connected to said wind turbine means for mounting said wind turbine means, a rotatable shaft connected to and axially extending from said core and mounted for rotation about its axis on an arm extending from said frame and mounting means, to rotate in response to rotation of said wind turbine means; said transmission means comprising a crank plate attached to the end of said rotatable shaft; a connecting rod connected to a pin off the axial center of said crank means and positioned for circular movement about said center; means connecting said pin to a connecting rod so that said rod can oscillate and reciprocate in response to rotation of said plate.
Claim 8
Dependent Claim
128 words
The invention of claim 6 further comprising means connecting one end of said rod to a double acting air piston/cylinder means, comprising a piston and cylinder, said piston being connected to said rod by a piston rod for moving said piston in response to the reciprocation of said connecting rod; means mounting said air piston/cylinder means such that said cylinder is both pivotable with the oscillation of said connecting rod and rotatable; support means embracing a shaft means connected to said rotatable shaft of said wind turbine means to permit rotation thereof in a support means housing said shaft means for rotation about its axis such that the direction of the wind into said wind turbine means will move said wind turbine means and rotate said shaft means.
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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) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |