Patent US3076533A successfully refreshed from Google Patents.
US3076533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilisation of wind-excited structures
Assignee: National Research Development Corp UK
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Filing: 1958-11-24
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Granted: 1963-02-05
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Expires: 1978-11-24
Abstract
No abstract record available.
Inventors
- 👤 Scruton Christopher
- 👤 Walshe Denis Eugene Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:03
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN COMBINATION WITH A BLUFF ELONGATED CANTILEVERSUPPORTED BODY OF GENERALLY REGULAR GEOMETRICAL SHAPE, MEANS COMPRISING AT LEAST ONE HELICAL STRAKE SECURED TO THE EXTERNAL SURFACE OF SAID BODY AND EXTENDING IN THE DIRECTION OF THE LONGITUDINAL AXIS THEREOF OVER A SUBSTANTIAL PORTION OF THE EXPOSED LENGTH OF SAID BODY FOR PREVENTING THE FORMATION OF KARMAN VORTEX STREETS DOWNSTREAM OF SAID BODY AND THUS STABILIZING SAID BODY AGAINST EXCITATION BY A FLUID MOVING TRANSVERSE TO THE LONGITUDINAL AXIS THEREOF.
Claim 2
Dependent Claim
78 words
IN COMBINATION WITH A BLUFF ELONGATED CANTILEVERSUPPORTED BODY OF GENERALLY REGULAR GEOMETRICAL SHAPE, MEANS COMPRISING AT LEAST ONE HELICAL STRAKE SECURED TO THE EXTERNAL SURFACE OF SAID BODY AND EXTENDING IN THE DIRECTION OF THE LONGITUDINAL AXIS THEREOF OVER A SUBSTANTIAL PORTION OF THE EXPOSED LENGTH OF SAID BODY FOR PREVENTING THE FORMATION OF KARMAN VORTEX STREETS DOWNSTREAM OF SAID BODY AND THUS STABILIZING SAID BODY AGAINST EXCITATION BY A FLUID MOVING TRANSVERSE TO THE LONGITUDINAL AXIS THEREOF.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |