US3356079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary internal combustion engine
Assignee: VIRMEL CORP
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Filing: 1966-11-29
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Granted: 1967-12-05
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Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Melvin T Rolfsmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:57
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/02; F01C1/063; F01C1/07; F02; F02B; F02B53/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
298 words
IN A ROTARY INTERNAL COMBUSTION ENGINE HAVING AN ELECTRICAL IGNITION SYSTEM AND MEANS FOR SUPPLYING A FUELAIR MIXTURE, A CYLINDRICAL-SHAPED COMBUSTION CHAMBER AND A DRIVE AND TRANSMISSION HOUSING, A MAIN DRIVE SHAFT EXTENDING AXIALLY THROUGH THE COMBUSTION CHAMBER AND PARTIALLY THROUGH THE DEVICE AND TRANSMISSION HOUSING, SECOND AND SHORTER DRIVE SHAFT TELESCOPED OVER A PORTION OF THE MAIN DRIVE SHAFT ALSO EXTENDING INTO THE DRIVE CHAMBER, A PAIR OF SEGMENTAL PISTONS LOCATED IN THE CYLINDRICAL COMBUSTION CHAMBER AT DIAMETRICALLY OPPOSED POSITIONS AND SECURED TO THE MAIN DRIVE SHAFT, ANOTHER SE OF PISTONS SECURED TO THE SECOND SHAFT, FOR RECIPROCATORY MOTION WITH RESPECT TO THE FIRST PISTON AND ROTARY MOTION OF THE PISTONS AS A WHOLE, MEANS FOR SECURING RECIPROCATORY AND ROTARY MOTION OF THE PISTON INCLUDING A GEAR SECURED TO THE INNER WALL OF THE TRANSMISSION HOUSING ADJACENT THE COMBUSTION CHAMBER AND CONCENTRIC WITH THE DRIVE SHAFTS, AND A FLY WHEEL OF TWO PARTS, WITH ONE PART MOUNTED ON THE SECOND SHAFT ADJACENT THE GEAR AND THE OTHER PART MOUNTED ON THE MAIN SHAFT, A PAIR OF CRANK SHAFTS MOUNTED FOR ROTATION TRANSVERSELY IN OPPOSITE RELATION THROUGH THE FLY WHEEL PARTS, PINION GEARS ON THE ND OF THE CRANK SHAFT ADJACENT TO AND MESHING WITH THE FIRST NAMED GEAR, CRANSK ONE ON THE MAIN DRIVE SHAFT AND ANOTHER ON THE SECOND DRIVE SHAFT AND CONNECTING RODS FROM ONE CRANK TO THE CRAK OF THE FIRST CRANK SHAFT AND THE OTHER TO THE CRANK OF THE SECOND CRANK SHAFT, A DRIVEN SHAFT FOR FURNISHING POWER, AND MEANS FOR FURNISHING DIRECT DRIVE POWER FROM THE FLY WHEEL TO THE DRIVEN SHAFT INCLUDING AN INTERNAL GEAR ENGAGED TO THE FLY WHEEL AND A PINION GEAR SLIDABLY MOUNTED ON THE DRIVEN SHART FOR ENGAGING AND DISENGAGING THE FLY WHEEL CONNECTED INTERNAL GEAR.
Claim 2
Dependent Claim
298 words
IN A ROTARY INTERNAL COMBUSTION ENGINE HAVING AN ELECTRICAL IGNITION SYSTEM AND MEANS FOR SUPPLYING A FUELAIR MIXTURE, A CYLINDRICAL-SHAPED COMBUSTION CHAMBER AND A DRIVE AND TRANSMISSION HOUSING, A MAIN DRIVE SHAFT EXTENDING AXIALLY THROUGH THE COMBUSTION CHAMBER AND PARTIALLY THROUGH THE DEVICE AND TRANSMISSION HOUSING, SECOND AND SHORTER DRIVE SHAFT TELESCOPED OVER A PORTION OF THE MAIN DRIVE SHAFT ALSO EXTENDING INTO THE DRIVE CHAMBER, A PAIR OF SEGMENTAL PISTONS LOCATED IN THE CYLINDRICAL COMBUSTION CHAMBER AT DIAMETRICALLY OPPOSED POSITIONS AND SECURED TO THE MAIN DRIVE SHAFT, ANOTHER SE OF PISTONS SECURED TO THE SECOND SHAFT, FOR RECIPROCATORY MOTION WITH RESPECT TO THE FIRST PISTON AND ROTARY MOTION OF THE PISTONS AS A WHOLE, MEANS FOR SECURING RECIPROCATORY AND ROTARY MOTION OF THE PISTON INCLUDING A GEAR SECURED TO THE INNER WALL OF THE TRANSMISSION HOUSING ADJACENT THE COMBUSTION CHAMBER AND CONCENTRIC WITH THE DRIVE SHAFTS, AND A FLY WHEEL OF TWO PARTS, WITH ONE PART MOUNTED ON THE SECOND SHAFT ADJACENT THE GEAR AND THE OTHER PART MOUNTED ON THE MAIN SHAFT, A PAIR OF CRANK SHAFTS MOUNTED FOR ROTATION TRANSVERSELY IN OPPOSITE RELATION THROUGH THE FLY WHEEL PARTS, PINION GEARS ON THE ND OF THE CRANK SHAFT ADJACENT TO AND MESHING WITH THE FIRST NAMED GEAR, CRANSK ONE ON THE MAIN DRIVE SHAFT AND ANOTHER ON THE SECOND DRIVE SHAFT AND CONNECTING RODS FROM ONE CRANK TO THE CRAK OF THE FIRST CRANK SHAFT AND THE OTHER TO THE CRANK OF THE SECOND CRANK SHAFT, A DRIVEN SHAFT FOR FURNISHING POWER, AND MEANS FOR FURNISHING DIRECT DRIVE POWER FROM THE FLY WHEEL TO THE DRIVEN SHAFT INCLUDING AN INTERNAL GEAR ENGAGED TO THE FLY WHEEL AND A PINION GEAR SLIDABLY MOUNTED ON THE DRIVEN SHART FOR ENGAGING AND DISENGAGING THE FLY WHEEL CONNECTED INTERNAL GEAR.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |