Patent US4416536A successfully refreshed from Google Patents.
Patent US3280805A successfully refreshed from Google Patents.
US3280805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1964-03-19
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Granted: 1966-10-25
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Expires: 1984-03-19
Abstract
No abstract record available.
Inventors
- 👤 Muller Hans Jakob Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:28
CPC Classifications
F; F01; F01B; F01B1/00; F01B1/12; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B75/02; F02B2075/022; F02B2075/025; F02B2075/1804; F02B2075/1824
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A TWO-CYCLE INTERNAL COMBUSTION ENGINE HAVING ANGULARLY DISPOSED CYLINDERS ARRANGED IN A V, EACH OF SAID CYLINDERS HAVING A PISTON AND CONNECTING ROD OPERATIVELY ASSOCIATED THEREWITH, A HOLLOW CRANKCASE, A CRANKSHAFT JOURNALLED IN SAID CRANKCASE, WALL MEANS DEFINING A CHAMBER IN SAID CRANKCASE, OPPOSITELY DISPOSED ADJACENT CYLINDERS HAVING THEIR CONNECTING RODS OPERABLE IN THE CRANKCASE CHAMBER AND CONNECTED TO A COMMON CRANK PIN OF SAID CRANKSHAFT, A DISC-SHAPED SPACER MOUNTED ON SAID CRANK PIN BETWEEN SAID CONNECTING RODS OF ADJACENT CYLINDERS, SAID SPACER EXTENDING RADIALLY OF SAID CRANKSHAFT BETWEEN THE WALLS OF SAID CRANKCASE TO DIVIDE SAID CRANKCASE CHAMBER INTO SEPARATE SUB-CHAMBERS, ONE OF EACH CONNECTING ROD.
Claim 2
Dependent Claim
107 words
A TWO-CYCLE INTERNAL COMBUSTION ENGINE HAVING ANGULARLY DISPOSED CYLINDERS ARRANGED IN A V, EACH OF SAID CYLINDERS HAVING A PISTON AND CONNECTING ROD OPERATIVELY ASSOCIATED THEREWITH, A HOLLOW CRANKCASE, A CRANKSHAFT JOURNALLED IN SAID CRANKCASE, WALL MEANS DEFINING A CHAMBER IN SAID CRANKCASE, OPPOSITELY DISPOSED ADJACENT CYLINDERS HAVING THEIR CONNECTING RODS OPERABLE IN THE CRANKCASE CHAMBER AND CONNECTED TO A COMMON CRANK PIN OF SAID CRANKSHAFT, A DISC-SHAPED SPACER MOUNTED ON SAID CRANK PIN BETWEEN SAID CONNECTING RODS OF ADJACENT CYLINDERS, SAID SPACER EXTENDING RADIALLY OF SAID CRANKSHAFT BETWEEN THE WALLS OF SAID CRANKCASE TO DIVIDE SAID CRANKCASE CHAMBER INTO SEPARATE SUB-CHAMBERS, ONE OF EACH CONNECTING ROD.
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 |