US3261337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-cooled internal combustion engine
Assignee: Individual
•
Filing: 1964-04-16
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Granted: 1966-07-19
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Expires: 1984-04-16
Abstract
No abstract record available.
Inventors
- 👤 Muller Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:05
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/04; F01N3/043; F01N3/046; F01P; F01P3/00; F01P3/20; F01P3/207; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN AN INTERNAL COMBUSTION ENGINE FOR WATERCRAFT, IN COMBINATION, A CYLINDER HOUSING HAVING COOLING JACKET MEANS; AN EXHAUST DUCT DETACHABLY SECURED TO SAID HOUSING AND CONSISTING OF LIGHT METAL AND COMPRISING A PAIR OF SHELLS HAVING SUPERIMPOSED MATING FACES RESPECTIVELY PROVIDED WITH MIRROR-SYMMETRICAL OPEN GROOVES THEREIN, SAID SHELLS BEING BONDED TOGETHER WHEREBY SAID MIRROR-SYMMETRICAL GROOVES TOGETHER FORM INTERNAL COOLING CHANNELS WHICH ARE IN COMMUNICATION WITH SAID JACKET MEANS; AND PUMP MEANS ARRANGED TO FEED WATER INTO SAID INTERNAL COOLING CHANNELS SO THAT THE EXHAUST DUCT IS COOLED BEFORE SUCH WATER ENTERS SAID JACKET MEANS.
Claim 2
Dependent Claim
94 words
IN AN INTERNAL COMBUSTION ENGINE FOR WATERCRAFT, IN COMBINATION, A CYLINDER HOUSING HAVING COOLING JACKET MEANS; AN EXHAUST DUCT DETACHABLY SECURED TO SAID HOUSING AND CONSISTING OF LIGHT METAL AND COMPRISING A PAIR OF SHELLS HAVING SUPERIMPOSED MATING FACES RESPECTIVELY PROVIDED WITH MIRROR-SYMMETRICAL OPEN GROOVES THEREIN, SAID SHELLS BEING BONDED TOGETHER WHEREBY SAID MIRROR-SYMMETRICAL GROOVES TOGETHER FORM INTERNAL COOLING CHANNELS WHICH ARE IN COMMUNICATION WITH SAID JACKET MEANS; AND PUMP MEANS ARRANGED TO FEED WATER INTO SAID INTERNAL COOLING CHANNELS SO THAT THE EXHAUST DUCT IS COOLED BEFORE SUCH WATER ENTERS SAID JACKET MEANS.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |