US3286487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller shafts for motor vehicles and other purposes
Assignee: Motors Liquidation Co
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Filing: 1964-12-14
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Granted: 1966-11-22
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Esperson James Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:09
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/22; F; F16; F16F; F16F15/00; F16F15/10; F16F15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A PROPELLER SHAFT ADAPTED FOR USE IN MOTOR VEHICLES AND COMPRISING A PAIR OF SPACED FLANGES ADAPTED TO BE CONNECTED WITH WITH SEPARATE PORTIONS OF A POWER TRAIN, A CENTRAL SHAFT HAVING ITS OPPOSITE ENDS CONNECTED TO SAID FLANGES SO AS TO BE CAPABLE OF TRANSMITTING TORQUE THEREBETWEEN, SAID SHAFT BEING TORSIONALLY RESILIENT SO AS TO MINIMIZE THE TRANSFER OF UNDESIRABLE TORSIONAL VIBRATIONS BETWEEN SAID FLANGES, A TUBULAR CASING CONCENTRICALLY SURROUNDING SAID SHAFT, SAID CASING BEING MOUNTED ON AND EXTENDING BETWEEN SAID FLANGES SO AS TO MAINTAIN THEM IN ALIGNMENT, SAID CASING BEING ROTATABLY FIXED WITH RESPECT TO ONE OF SAID FLANGES AND CAPABLE OF AT LEAST LIMITED ROTATABLE MOVEMENT WITH RESPECT TO THE OTHER OF SAID FLANGES AND FRICTION DAMPING MEANS CARRIED ON SAID CASING AND FRICTIONALLY CONTACTING SAID OTHER FLANGE WHEREBY TO ASSIST IN DAMPING OUT TORSIONAL VIBRATIONS TRANSMITTED TO SAID PROPELLER SHAFT.
Claim 2
Dependent Claim
145 words
A PROPELLER SHAFT ADAPTED FOR USE IN MOTOR VEHICLES AND COMPRISING A PAIR OF SPACED FLANGES ADAPTED TO BE CONNECTED WITH WITH SEPARATE PORTIONS OF A POWER TRAIN, A CENTRAL SHAFT HAVING ITS OPPOSITE ENDS CONNECTED TO SAID FLANGES SO AS TO BE CAPABLE OF TRANSMITTING TORQUE THEREBETWEEN, SAID SHAFT BEING TORSIONALLY RESILIENT SO AS TO MINIMIZE THE TRANSFER OF UNDESIRABLE TORSIONAL VIBRATIONS BETWEEN SAID FLANGES, A TUBULAR CASING CONCENTRICALLY SURROUNDING SAID SHAFT, SAID CASING BEING MOUNTED ON AND EXTENDING BETWEEN SAID FLANGES SO AS TO MAINTAIN THEM IN ALIGNMENT, SAID CASING BEING ROTATABLY FIXED WITH RESPECT TO ONE OF SAID FLANGES AND CAPABLE OF AT LEAST LIMITED ROTATABLE MOVEMENT WITH RESPECT TO THE OTHER OF SAID FLANGES AND FRICTION DAMPING MEANS CARRIED ON SAID CASING AND FRICTIONALLY CONTACTING SAID OTHER FLANGE WHEREBY TO ASSIST IN DAMPING OUT TORSIONAL VIBRATIONS TRANSMITTED TO SAID PROPELLER SHAFT.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |