US3307669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction coupling element with vibration limiter
Assignee: Dana Inc
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Filing: 1964-12-16
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Granted: 1967-03-07
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Expires: 1984-12-16
Abstract
No abstract record available.
Inventors
- 👤 Hubert E Klinkenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:25
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/10; F16D27/108; F16D27/112; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D2027/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A FRICTION COUPLING HAVING TWO RINGS MOUNTED FOR RELATIVE ROTATION ABOUT A COMMON AXIS AND ADAPTED FOR AXIAL GRIPPING ENGAGEMENT TO DEVELOP A DRIVING TORQUE, ONE OF SAID RINGS COMPRISING A RELATIVELY THIN AND FLAT SOLID DISK OF IRON, HOLES EXTENDING THROUGH AND ANGULARLY SPACED AROUND SAID DISK AND EACH DEFINED BY A CONTINUOUS PERIPHERAL WALL, AND SOLID DUCTILE METAL PLUGS IN SAID HOLES; SAID PLUGS BEING RADIALLY EXPANDED WITHIN SAID HOLES AND EXERTING A CONTINUOUS RADIAL FORCE AGAINST SAID WALLS TO MAINTAIN PORTIONS OF THE METAL OF THE DISK AROUND THE FULL CIRCUMFERENCE OF SAID HOLES UNDER RADIALLY COMPRESSIVE STRESS SUFFICIENT TO IMPART TO THE DISK AS A WHOLE A NATURAL FREQUENCY OF VIBRATION WHICH IS BEYOND THE RANGE OF OBJECTIONABLE AUDIBILITY DURING GRIPPING ENGAGEMENT OF SAID RINGS.
Claim 2
Dependent Claim
129 words
A FRICTION COUPLING HAVING TWO RINGS MOUNTED FOR RELATIVE ROTATION ABOUT A COMMON AXIS AND ADAPTED FOR AXIAL GRIPPING ENGAGEMENT TO DEVELOP A DRIVING TORQUE, ONE OF SAID RINGS COMPRISING A RELATIVELY THIN AND FLAT SOLID DISK OF IRON, HOLES EXTENDING THROUGH AND ANGULARLY SPACED AROUND SAID DISK AND EACH DEFINED BY A CONTINUOUS PERIPHERAL WALL, AND SOLID DUCTILE METAL PLUGS IN SAID HOLES; SAID PLUGS BEING RADIALLY EXPANDED WITHIN SAID HOLES AND EXERTING A CONTINUOUS RADIAL FORCE AGAINST SAID WALLS TO MAINTAIN PORTIONS OF THE METAL OF THE DISK AROUND THE FULL CIRCUMFERENCE OF SAID HOLES UNDER RADIALLY COMPRESSIVE STRESS SUFFICIENT TO IMPART TO THE DISK AS A WHOLE A NATURAL FREQUENCY OF VIBRATION WHICH IS BEYOND THE RANGE OF OBJECTIONABLE AUDIBILITY DURING GRIPPING ENGAGEMENT OF SAID RINGS.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |