Patent US3256868A successfully refreshed from Google Patents.
US3256868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion engine system
Assignee: Individual
•
Filing: 1964-05-13
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Granted: 1966-06-21
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Expires: 1984-05-13
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:56
CPC Classifications
F; F01; F01P; F01P3/00; F01P3/22; F01P3/2207; F01P11/00; F01P11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A COMBUSTION ENGINE SYSTEM COMPRISING IN COMBINATION A COMBUSTION ENGINE, A LIQUID COOLING SYSTEM FOR THE ENGINE HAVING A LIQUID FLOW CIRCUIT ARRANGED IN A SEALED, CLOSED LOOP AND INCLUDING A FIRST CIRCUIT PORTION DISPOSED IN HEAT EXCHANGE RELATION WITH SAID ENGINE AND ANOTHER CIRCUIT PORTION DISPOSED IN HEAT EXCHANGE RELATION WITH THE ATMOSPHERE, A BODY OF COOLANT LIQUID COMPLETELY FILLING SAID CIRCUIT, AND MEANS FOR CIRCULATING SAID LIQUID AROUND SAID CIRCUIT, A GAS COMPRESSOR MOUNTED ADJACENT THE ENGINE AND COUPLED TO BE DRIVEN THEREFROM, A PRESSURE LINE CONNECTED TO THE COMPRESSOR OUTLET AND CONNECTED TO A HIGH POINT OF SAID LIQUID FLOW CIRCUIT IN PRESSURE TRANSMITTING RELATION WITH THE BODY OF LIQUID THEREIN, AND MEANS CONTROLLING THE GAS PRESSURE IN SAID PRESSURE LINE TO IMPOSE ON SAID BODY OF LIQUID A SUBSTANTIALLY CONSTANT GAS PRESSURE SUFFICIENTLY HIGH TO PREVENT THE FORMATION OF STEAM WITHIN SAID CIRCUIT.
Claim 2
Dependent Claim
147 words
A COMBUSTION ENGINE SYSTEM COMPRISING IN COMBINATION A COMBUSTION ENGINE, A LIQUID COOLING SYSTEM FOR THE ENGINE HAVING A LIQUID FLOW CIRCUIT ARRANGED IN A SEALED, CLOSED LOOP AND INCLUDING A FIRST CIRCUIT PORTION DISPOSED IN HEAT EXCHANGE RELATION WITH SAID ENGINE AND ANOTHER CIRCUIT PORTION DISPOSED IN HEAT EXCHANGE RELATION WITH THE ATMOSPHERE, A BODY OF COOLANT LIQUID COMPLETELY FILLING SAID CIRCUIT, AND MEANS FOR CIRCULATING SAID LIQUID AROUND SAID CIRCUIT, A GAS COMPRESSOR MOUNTED ADJACENT THE ENGINE AND COUPLED TO BE DRIVEN THEREFROM, A PRESSURE LINE CONNECTED TO THE COMPRESSOR OUTLET AND CONNECTED TO A HIGH POINT OF SAID LIQUID FLOW CIRCUIT IN PRESSURE TRANSMITTING RELATION WITH THE BODY OF LIQUID THEREIN, AND MEANS CONTROLLING THE GAS PRESSURE IN SAID PRESSURE LINE TO IMPOSE ON SAID BODY OF LIQUID A SUBSTANTIALLY CONSTANT GAS PRESSURE SUFFICIENTLY HIGH TO PREVENT THE FORMATION OF STEAM WITHIN SAID CIRCUIT.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |