US4087927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind power demonstration apparatus
Assignee: Megatech Corp USA
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Filing: 1977-02-22
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Granted: 1978-05-09
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Expires: 1997-02-22
Abstract
Abstract Wind power demonstration apparatus comprises a windmill assembly comprising a windmill propeller and motor driven fan in a common shroud, an electrical powered generator drivingly coupled to the propeller, parameter adjusting means, and output adjusting and measuring means to provide a compact, economical demonstrator of wind powered operation of a generator and energy conversion.
Inventors
- 👤 Vahan V. Basmajian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:30
CPC Classifications
G; G09; G09B; G09B25/00; G09B25/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
146 words
Wind power demonstration apparatus comprising, means defining a driven wheel for rotating in response to impingement of a driving wind thereon, the wheel construction comprising a driven propeller, means defining a shroud for enclosing the driven wheel having apertured ends for allowing air to flow through said shroud while restricting access to said propeller, means defining a wind generator within the shroud for blowing wind against the blades, said wind generator comprising a driving propeller, said apparatus having an electrical generator mechanically coupled to said driven propeller, means defining a control instrument chassis mounting a generator load circuit therein electrically coupled to said electrical generator, means for mounting the driven wheel, wind generator and shroud from said chassis, means defining at least one generator output measuring instrument coupled to said electrical generator mounted on said chassis and having a viewable display for displaying the generator output.
Claim 2
Dependent Claim
146 words
Wind power demonstration apparatus comprising, means defining a driven wheel for rotating in response to impingement of a driving wind thereon, the wheel construction comprising a driven propeller, means defining a shroud for enclosing the driven wheel having apertured ends for allowing air to flow through said shroud while restricting access to said propeller, means defining a wind generator within the shroud for blowing wind against the blades, said wind generator comprising a driving propeller, said apparatus having an electrical generator mechanically coupled to said driven propeller, means defining a control instrument chassis mounting a generator load circuit therein electrically coupled to said electrical generator, means for mounting the driven wheel, wind generator and shroud from said chassis, means defining at least one generator output measuring instrument coupled to said electrical generator mounted on said chassis and having a viewable display for displaying the generator output.
Claim 3
Dependent Claim
20 words
Wind power demonstration apparatus in accordance with claim 1 and further comprising chassis mounted means for adjusting generator field current.
Claim 4
Dependent Claim
18 words
Wind power demonstration apparatus in accordance with claim 1 wherein said generator output measuring instrument measures armature current.
Claim 5
Dependent Claim
20 words
Wind power demonstration apparatus in accordance with claim 1 and further comprising means for locking the driven propeller against rotation.
Claim 6
Dependent Claim
34 words
Wind power demonstration apparatus in accordance with claim 1 wherein the wind generator driving propeller is substantially the same size and form as the windmill driven propeller and is mounted in opposing relation thereto.
Claim 7
Dependent Claim
19 words
Wind power demonstration apparatus in accordance with claim 5 wherein the two propellers are mounted on high vertical posts.
Claim 8
Dependent Claim
33 words
Wind power demonstration apparatus in accordance with claim 1 and further comprising means for measuring wind speed at multiple points in the cross section area of wind flow produced by the wind generator.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |