Patent US4281965A successfully refreshed from Google Patents.
US4281965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cantilever mounted wind turbine
Assignee: Individual
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Filing: 1979-05-07
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Granted: 1981-08-04
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Expires: 1999-05-07
Abstract
Abstract A cantilever mounted wind turbine having an interior stationary support column and a concentrically mounted rotatable rotor and having a first bearing between the support column and the rotor and a second flexibly coupled bearing between the support column and the rotor where the second bearing includes bearing surfaces and a flexible coupling between one of the bearing surfaces and the rotor in order to provide bending moment decoupling between the rotor and its support column.
Inventors
- 👤 Dale T. Stjernholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:58
CPC Classifications
F; F03; F03D; F03D3/00; F03D3/06; F03D3/061; F03D80/00; F03D80/70; F05; F05B; F05B2240/00; F05B2240/20; F05B2240/21; F05B2240/211; F05B2240/213; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/74
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
A moment decoupling connection between first and second concentrically mounted and respectively rotatably members, including: radial thrust bearing means having first and second bearing surfaces; means securing the first bearing surface to the said first member; and means flexibly coupling the second bearing surface to the said second member including: a pair of spaced apart flanges; a plurality of circumferentially equi-spaced torque transmitting drive pin means interconnecting the flanges; and elastic cushioning means disposed between the flanges.
Claim 2
Dependent Claim
77 words
A moment decoupling connection between first and second concentrically mounted and respectively rotatably members, including: radial thrust bearing means having first and second bearing surfaces; means securing the first bearing surface to the said first member; and means flexibly coupling the second bearing surface to the said second member including: a pair of spaced apart flanges; a plurality of circumferentially equi-spaced torque transmitting drive pin means interconnecting the flanges; and elastic cushioning means disposed between the flanges.
Claim 3
Dependent Claim
111 words
In a self-supporting fluid turbine having a rotor shaft, a plurality of elongated blades and means attaching the ends of said blades to longitudinally spaced apart points on said rotor shaft, the improvement comprising: an anchored support column interiorally nested within the said rotor shaft; first and second bearing means interconnecting the said column and the shaft and adapted to accomodate relative rotation therebetween and including: first and second torque transmitting drive flanges, the first of said flanges attached to the said rotor shaft and the second of said flanges attached to said second bearing means; a plurality of flange pins interconnecting the flanges, and cushioning means disposed between the flanges.
Claim 4
Dependent Claim
111 words
In a self-supporting fluid turbine having a rotor shaft, a plurality of elongated blades and means attaching the ends of said blades to longitudinally spaced apart points on said rotor shaft, the improvement comprising: an anchored support column interiorally nested within the said rotor shaft; first and second bearing means interconnecting the said column and the shaft and adapted to accomodate relative rotation therebetween and including: first and second torque transmitting drive flanges, the first of said flanges attached to the said rotor shaft and the second of said flanges attached to said second bearing means; a plurality of flange pins interconnecting the flanges, and cushioning means disposed between the flanges.
Claim 5
Dependent Claim
20 words
The combination of claim 2 wherein the cushioning means includes spring means coiled around each of the said flange pins.
Claim 6
Dependent Claim
23 words
The combination of claim 2 wherein the plane of the annular flanges is perpendicular to the axis of rotation of the rotor shaft.
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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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |