Patent US3255740A successfully refreshed from Google Patents.
US3255740A
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US
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Engine coolant deaeration system
Assignee: Motors Liquidation Co
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Filing: 1964-09-18
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Granted: 1966-06-14
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Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 John W Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:36
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/02; F01P11/028; F01P7/00; F01P7/14; F01P7/16; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0437; F02B29/0443; F01P2060/00; F01P2060/02; F01P2060/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN ENGINE COOLANT DEAERATION SYSTEM COMPRISING AN ENGINE JACKET, A RADIATOR WITH A TOP TANK AND A BOTTOM TANK, A PUMP, A TWO-WAY THERMOSTATIC VALVE, FIRST CONDUIT MEANS CONNECTING SAID BOTTOM TANK TO SAID VALVE, PUMP AND JACKET IN SERIES AND IN THAT ORDER, SECOND CONDUIT MEANS CONNECTING SAID JACKET, TOP TANK AND VALVE IN SERIES AND IN THAT ORDER, THE POINTS OF JOINDER OF SAID SECOND CONDUIT MEANS TO SAID TOP TANK BEING SPACED TO FACILITATE SEPARATION OF GAS, AND THE VALVE BEING SUCH AS TO MAKE SAID FIRST CONDUIT MEANS EFFECTIVE WHEN SAID JACKET IS HEATED AND TO MAKE SAID SECOND CONDUIT MEANS EFFECTIVE WHEN SAID JACKET IS NOT HEATED.
Claim 2
Dependent Claim
112 words
AN ENGINE COOLANT DEAERATION SYSTEM COMPRISING AN ENGINE JACKET, A RADIATOR WITH A TOP TANK AND A BOTTOM TANK, A PUMP, A TWO-WAY THERMOSTATIC VALVE, FIRST CONDUIT MEANS CONNECTING SAID BOTTOM TANK TO SAID VALVE, PUMP AND JACKET IN SERIES AND IN THAT ORDER, SECOND CONDUIT MEANS CONNECTING SAID JACKET, TOP TANK AND VALVE IN SERIES AND IN THAT ORDER, THE POINTS OF JOINDER OF SAID SECOND CONDUIT MEANS TO SAID TOP TANK BEING SPACED TO FACILITATE SEPARATION OF GAS, AND THE VALVE BEING SUCH AS TO MAKE SAID FIRST CONDUIT MEANS EFFECTIVE WHEN SAID JACKET IS HEATED AND TO MAKE SAID SECOND CONDUIT MEANS EFFECTIVE WHEN SAID JACKET IS NOT HEATED.
References Cited (Backward Citations)
US1311809A
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US2296641A
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US2336068A
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US2332680A
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US2988068A
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US3014467A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |