US3141313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque-limiting shaft coupling assembly
Assignee: General Electric Co
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Filing: 1963-01-28
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Granted: 1964-07-21
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Sherman P Brickett
- 👤 Herbert N Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:03
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A TORQUE-LIMITING QUILL SHAFT ASSEMBLY COMPRISING: (A) A RELATIVELY RIGID HOLLOW QUILL SHAFT, (B) A RELATIVELY FLEXIBLE INNER SHAFT DISPOSED COAXIALLY WITHIN AND SPACED FROM THE QUILL SHAFT, (C) FIRST COUPLING MEANS CONNECTING A FIRST END OF SAID FLEXIBLE SHAFT TO THE ADJACENT FIRST END OF SAID QUILL SHAFT, (D) SECOND COUPLING MEANS FOR TRANSMITTING TORQUE FROM THE SECOND END OF THE FLEXIBLE SHAFT TO THE ADJACENT SECOND END OF THE QUILL SHAFT UPON OCCURRENCE OF A PRESELECTED MAXIMUM TORQUE, THE SECOND COUPLING MEANS INCLUDING FIRST AND SECOND ANNULAR COUPLING MEMBERS CONNECTED TO THE QUILL SHAFT AND FLEXIBLE SHAFT RESPECTIVELY AND HAVING CIRCUMFERENTIALLY SPACED INTERENGAGING PROJECTIONS DEFINING SUBSTANTIAL CIRCUMFERENTIAL CLEARANCES UNDER NORMAL TORQUE LOADS, SAID PROJECTIONS BEING TAPERED AXIALLY IN OPPOSITE DIRECTIONS SO THAT AXIAL ADJUSTMENT OF SAID FIRST AND SECOND ANNULAR COUPLING MEMBERS RELATIVE TO ONE ANOTHER VARIES THE CIRCUMFERENTIAL CLEARANCE DEFINED BY SAID PROJECTIONS, AND (E) MEANS FOR ADJUSTING THE TAPERED PROJECTIONS OF THE FIRST AND SECOND ANNULAR COUPLING MEMBERS AXIALLY RELATIVE TO ONE ANOTHER TO EFFECT VARIATION OF SAID CIRCUMFERENTIAL CLEARANCES.
Claim 2
Dependent Claim
174 words
A TORQUE-LIMITING QUILL SHAFT ASSEMBLY COMPRISING: (A) A RELATIVELY RIGID HOLLOW QUILL SHAFT, (B) A RELATIVELY FLEXIBLE INNER SHAFT DISPOSED COAXIALLY WITHIN AND SPACED FROM THE QUILL SHAFT, (C) FIRST COUPLING MEANS CONNECTING A FIRST END OF SAID FLEXIBLE SHAFT TO THE ADJACENT FIRST END OF SAID QUILL SHAFT, (D) SECOND COUPLING MEANS FOR TRANSMITTING TORQUE FROM THE SECOND END OF THE FLEXIBLE SHAFT TO THE ADJACENT SECOND END OF THE QUILL SHAFT UPON OCCURRENCE OF A PRESELECTED MAXIMUM TORQUE, THE SECOND COUPLING MEANS INCLUDING FIRST AND SECOND ANNULAR COUPLING MEMBERS CONNECTED TO THE QUILL SHAFT AND FLEXIBLE SHAFT RESPECTIVELY AND HAVING CIRCUMFERENTIALLY SPACED INTERENGAGING PROJECTIONS DEFINING SUBSTANTIAL CIRCUMFERENTIAL CLEARANCES UNDER NORMAL TORQUE LOADS, SAID PROJECTIONS BEING TAPERED AXIALLY IN OPPOSITE DIRECTIONS SO THAT AXIAL ADJUSTMENT OF SAID FIRST AND SECOND ANNULAR COUPLING MEMBERS RELATIVE TO ONE ANOTHER VARIES THE CIRCUMFERENTIAL CLEARANCE DEFINED BY SAID PROJECTIONS, AND (E) MEANS FOR ADJUSTING THE TAPERED PROJECTIONS OF THE FIRST AND SECOND ANNULAR COUPLING MEMBERS AXIALLY RELATIVE TO ONE ANOTHER TO EFFECT VARIATION OF SAID CIRCUMFERENTIAL CLEARANCES.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |