Patent US6664655B2 successfully refreshed from Google Patents.
US6664655B2
Expired / Lapsed
US
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Multaxel windmill
Assignee: Individual
•
Filing: 2002-06-06
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Granted: 2003-12-16
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Expires: 2022-06-06
Abstract
Abstract The multiaxel windmill has multiple blades attached to a rim that rotates on multiple wheels rather than about a single axel. The blades are many and short and positioned far from the axis of rotation such that the full blade length rotates at maximum velocity. This allows blades to be oriented for high-efficiency lift. This design is more easily scaled to large power because larger weight and more blades are easily supported. A starter motor permits use of optimum-efficient, pure-lift blades, and no blade twist and double-end support enables those blades to be simpler, lighter, and cheaper. Multiple blades surrounded by supports are easily seen and avoided by birds.
Inventors
- 👤 Charles S. Vann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:10
CPC Classifications
F; F03; F03D; F03D1/00; F03D1/06; F03D1/0608; F05; F05B; F05B2240/00; F05B2240/20; F05B2240/21; F05B2240/221; F05B2240/2211; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
45 words
A windmill, comprising: a rigid structural base; two or more rolling elements supported by said base; an endless circulating rim supported by said rolling elements; a plurality of blades attached to said rim; wherein wind forces move said blades and bring said rim into rotation.
Claim 2
Dependent Claim
45 words
A windmill, comprising: a rigid structural base; two or more rolling elements supported by said base; an endless circulating rim supported by said rolling elements; a plurality of blades attached to said rim; wherein wind forces move said blades and bring said rim into rotation.
Claim 3
Dependent Claim
11 words
Windmill of claim 1 where in said rolling elements are wheels.
Claim 4
Dependent Claim
11 words
Windmill of claim 1 where in said rolling elements are bearings.
Claim 5
Dependent Claim
12 words
Windmill of claim 1 further including axels to support said rolling elements.
Claim 6
Dependent Claim
13 words
Windmill of claim 1 further including a motor to start the windmill rotating.
Claim 7
Dependent Claim
23 words
Windmill of claim 1 further including a wind tail attached to said base to position said blades in the direction of the wind.
Claim 8
Dependent Claim
16 words
Windmill of claim 1 further including a power generator to convert windmill motion into electrical energy.
Claim 9
Dependent Claim
15 words
Windmill of claim 1 where in said rim is a magnetic for said power generator.
Claim 10
Dependent Claim
15 words
Windmill of claim 1 where in said rim is a magnetic for said starter motor.
Claim 11
Dependent Claim
21 words
Windmill of claim 1 further including wire coils supported on said base to generate electrical power from motion of said magnetic.
Claim 12
Dependent Claim
18 words
Windmill of claim 1 further including wire coils supported on said base to force said rim to rotate.
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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) | 2006-12-15 | 2007-06-16 | 2007-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-15 | 2011-06-16 | 2011-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-15 | 2015-06-16 | 2015-12-16 | $7700.00 | Window Closed / Lapsed |