Patent US3134371A successfully refreshed from Google Patents.
US3134371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for internal combustion engines
Assignee: Cooper Bessemer Corp
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Filing: 1962-10-29
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Granted: 1964-05-26
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 William R Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
F; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0437; F02B29/0443; F01; F01P; F01P3/00; F01P3/20; F01P7/00; F01P7/14; F01P7/16; F01P7/165; F02B29/0412; F01P5/00; F01P5/10; F01P2005/105; F01P2025/00; F01P2025/08; F01P2025/50; F01P2060/00; F01P2060/02; F01P2060/04; F01P5/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD OF COOLING AN INTERNAL COMBUSTION ENGINE OF THE TYPE HAVING A COOLING JACKET, A RADIATOR, AND A SUPERCHARGER AND AFTERCOOLER FOR THE AIR SUPPLY TO THE ENGINE, SAID METHOD COMPRISING: PROVIDING A LARGE RECIRCULATING FLOW OF COOLING FLUID THROUGH THE JACKET OF THE ENGINE IN A FIRST CIRCUIT THAT DOES NOT INCLUDE SAID RADIATOR, PROVIDING A SMALLER RECIRCULATING FLOW THROUGH THE RADIATOR AND THE AFTERCOOLER IN A SECOND COOLANT CIRCUIT, BLEEDING A STREAM OF FLUID FROM THE FIRST MENTIONED COOLANT CIRCUIT TO THE SECOND COOLANT CIRCUIT IN RESPONSE TO A RISE IN ENGINE TEMPERATURE, AND CAUSING AN EQUAL AMOUNT OF FLUID TO RETURN FROM THE SECOND COOLANT CIRCUIT TO THE FIRST, AND DECREASING THE INTERFLOW BETWEEN THE TWO CIRCUITS UPON A DROP IN ENGINE TEMPERATURE, WHEREBY THE AIR FLOW TO THE ENGINE COOLED BY SAID SECOND COOLANT CIRCUIT IS KEPT AT AS LOW A TEMPERATURE AS POSSIBLE UNDER ALL OPERATING CONDITIONS.
Claim 2
Independent Claim
153 words
A METHOD OF COOLING AN INTERNAL COMBUSTION ENGINE OF THE TYPE HAVING A COOLING JACKET, A RADIATOR, AND A SUPERCHARGER AND AFTERCOOLER FOR THE AIR SUPPLY TO THE ENGINE, SAID METHOD COMPRISING: PROVIDING A LARGE RECIRCULATING FLOW OF COOLING FLUID THROUGH THE JACKET OF THE ENGINE IN A FIRST CIRCUIT THAT DOES NOT INCLUDE SAID RADIATOR, PROVIDING A SMALLER RECIRCULATING FLOW THROUGH THE RADIATOR AND THE AFTERCOOLER IN A SECOND COOLANT CIRCUIT, BLEEDING A STREAM OF FLUID FROM THE FIRST MENTIONED COOLANT CIRCUIT TO THE SECOND COOLANT CIRCUIT IN RESPONSE TO A RISE IN ENGINE TEMPERATURE, AND CAUSING AN EQUAL AMOUNT OF FLUID TO RETURN FROM THE SECOND COOLANT CIRCUIT TO THE FIRST, AND DECREASING THE INTERFLOW BETWEEN THE TWO CIRCUITS UPON A DROP IN ENGINE TEMPERATURE, WHEREBY THE AIR FLOW TO THE ENGINE COOLED BY SAID SECOND COOLANT CIRCUIT IS KEPT AT AS LOW A TEMPERATURE AS POSSIBLE UNDER ALL OPERATING CONDITIONS.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |