US3280653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple unit flywheel with engine condition control
Assignee: Curtiss Wright Corp
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Filing: 1964-07-07
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Granted: 1966-10-25
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Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Mooney
- 👤 Fay A Roepcke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:35
CPC Classifications
F; F16; F16H; F16H33/00; F16D; F16D43/00; F16D43/02; F16D43/04; F16D43/14; F16D43/18; F16F; F16F15/00; F16F15/30; F16H33/02; F16H2706/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN AN ENGINE GENERATING PULSING POWER, AN OUTPUT DRIVE SHAFT, A VARIABLE MASS FLYWHEEL COMPRISING A FIRST FLYWHEEL UNIT FIXED TO SAID SHAFT AND HAVING A MOMENT OF INERTIA SELECTED FOR FAST ENGINE SPEED RESPONSE DURING NORMAL OPERATION, A SECOND FLYWHEEL UNIT FREELY ROTATABLE WITH RESPECT TO SAID SHAFT AND HAVING A MOMENT OF INERTIA SELECTED WITH REFERENCE TO THAT OF THE FIRST FLYWHEEL UNIT SO THAT THE RESULTANT MOMENT OF INERTIA OF THE COMBINED UNITS IS SUITABLE FOR STABILIZING ENGINE OPERATION AT INITIAL AND LOW SPEED INCIDENTAL TO THE STARTING, IDLE AND WARM-UP CONDITIONS, AND MEANS MOUNTED IN THE FLYWHEEL FOR VARYING THE EFFECTIVE MASS THEREOF COMPRISING A FIRST CLUTCH MEANS INDEPENDENTLY RESPONSIVE TO ENGINE R.P.M. FOR CLUTCHING THE FLYWHEEL UNITS AT LOW AND IDLING SPEEDS AND FOR DECLUTCHING THEM AT NORMAL RUNNING SPEEDS, AND A SECOND CLUTCH MEANS INDEPENDENTLY RESPONSIVE TO ENGINE TEMPERATURE FOR CLUTCHING DURING COLD-START AND INITIAL
Claim 2
Dependent Claim
151 words
IN AN ENGINE GENERATING PULSING POWER, AN OUTPUT DRIVE SHAFT, A VARIABLE MASS FLYWHEEL COMPRISING A FIRST FLYWHEEL UNIT FIXED TO SAID SHAFT AND HAVING A MOMENT OF INERTIA SELECTED FOR FAST ENGINE SPEED RESPONSE DURING NORMAL OPERATION, A SECOND FLYWHEEL UNIT FREELY ROTATABLE WITH RESPECT TO SAID SHAFT AND HAVING A MOMENT OF INERTIA SELECTED WITH REFERENCE TO THAT OF THE FIRST FLYWHEEL UNIT SO THAT THE RESULTANT MOMENT OF INERTIA OF THE COMBINED UNITS IS SUITABLE FOR STABILIZING ENGINE OPERATION AT INITIAL AND LOW SPEED INCIDENTAL TO THE STARTING, IDLE AND WARM-UP CONDITIONS, AND MEANS MOUNTED IN THE FLYWHEEL FOR VARYING THE EFFECTIVE MASS THEREOF COMPRISING A FIRST CLUTCH MEANS INDEPENDENTLY RESPONSIVE TO ENGINE R.P.M. FOR CLUTCHING THE FLYWHEEL UNITS AT LOW AND IDLING SPEEDS AND FOR DECLUTCHING THEM AT NORMAL RUNNING SPEEDS, AND A SECOND CLUTCH MEANS INDEPENDENTLY RESPONSIVE TO ENGINE TEMPERATURE FOR CLUTCHING DURING COLD-START AND INITIAL
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |