US3228482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller hub and shaft connection
Assignee: P & O Res & Dev Co
•
Filing: 1965-07-19
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Granted: 1966-01-11
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Bunyan Thomas Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:26
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; B; B63; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A PROPELLER MOUNTING COMPRISING: A SHAFT HAVING A TAPERED END; A METAL SLEEVE MEMBER MOUNTED ON THE TAPERED END OF SAID SHAFT IN TORQUE TRANSMITTING CONNECTION WITH SAID SHAFT; A PROPELLER INCLUDING A HUB ENVELOPING SAID METAL SLEEVE MEMBER, IN RIGID TORQUE AND THRUST TRANSMITTING CONNECTION WITH SAID METAL SLEEVE OVER A CIRCUMFERENTIAL ZONE IN THE REGION OF THE END OF SAID HUB ADJACENT A SMALLER END OF SAID TAPERED SHAFT AND FOR AN AXIAL LENGTH CORRESPONDING TO A PART ONLY OF THE AXIAL LENGTH OF SAID HUB, AND WITH AN AXIALLY ELONGATED ANNULAR CLEARANCE SPACE BETWEEN SAID METAL SLEEVE MEMBER AND SAID HUB EXTENDING FROM SAID CIRCUMFERENTIAL ZONE TO THE END OF SAID HUB ADJACENT THE LARGER END OF SAID TAPERED SHAFT; WHEREBY STRESS CONCENTRATIONS IN THE AREA OF THE LARGE END OF THE TAPERED PORTION OF THE SHAFT WHICH OTHERWISE CAUSE FAILURE OF THE SHAFT IN THAT AREA ARE SUBSTANTIALLY ELIMINATED.
Claim 2
Dependent Claim
153 words
A PROPELLER MOUNTING COMPRISING: A SHAFT HAVING A TAPERED END; A METAL SLEEVE MEMBER MOUNTED ON THE TAPERED END OF SAID SHAFT IN TORQUE TRANSMITTING CONNECTION WITH SAID SHAFT; A PROPELLER INCLUDING A HUB ENVELOPING SAID METAL SLEEVE MEMBER, IN RIGID TORQUE AND THRUST TRANSMITTING CONNECTION WITH SAID METAL SLEEVE OVER A CIRCUMFERENTIAL ZONE IN THE REGION OF THE END OF SAID HUB ADJACENT A SMALLER END OF SAID TAPERED SHAFT AND FOR AN AXIAL LENGTH CORRESPONDING TO A PART ONLY OF THE AXIAL LENGTH OF SAID HUB, AND WITH AN AXIALLY ELONGATED ANNULAR CLEARANCE SPACE BETWEEN SAID METAL SLEEVE MEMBER AND SAID HUB EXTENDING FROM SAID CIRCUMFERENTIAL ZONE TO THE END OF SAID HUB ADJACENT THE LARGER END OF SAID TAPERED SHAFT; WHEREBY STRESS CONCENTRATIONS IN THE AREA OF THE LARGE END OF THE TAPERED PORTION OF THE SHAFT WHICH OTHERWISE CAUSE FAILURE OF THE SHAFT IN THAT AREA ARE SUBSTANTIALLY ELIMINATED.
References Cited (Backward Citations)
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Cited
FR616293A
Cited
US2146342A
Cited
US2840399A
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US3136370A
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US3144909A
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US3097003A
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |