US3228382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive fan
Assignee: Ford Motor Co
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Filing: 1964-11-13
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Granted: 1966-01-11
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Expires: 1984-11-13
Abstract
No abstract record available.
Inventors
- 👤 John P Stefan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:20
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02; F01P7/08; F01P7/081; F01P7/082; F01P7/085; G; G05; G05D; G05D23/00; G05D23/185; F01P5/00; F01P5/10; F01P5/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A COOLING SYSTEM FOR A LIQUID COOLED INTERNAL COMBUSTION ENGINE COMPRISING A COOLING JACKET FOR SAID ENGINE, A COOLANT PUMP FOR CIRCULATING A LIQUID COOLANT, A RADIATOR, CONDUIT MEANS FOR INTERCONNECTING SAID COOLANT PUMP, SAID COOLING JACKET AND SAID RADIATOR, A VENTURI SECTION POSITIONED IN A PORTION OF SAID CONDUIT MEANS, A FAN FOR CIRCULATING AIR ACROSS SAID RADIATOR FOR A HEAT TRANSFER FROM SAID RADIATOR TO THE AIR, THE LIQUID COOLANT FLOWING THROUGH SAID VENTURI SECTION BEING ADAPTED TO VAPORIZE AT THE THROAT OF SAID VENTURI SECTION AT A PREDETERMINED COOLANT TEMPERATURE, MEANS FOR GENERATING A SIGNAL WHEN THE COOLANT VAPORIZES WITHIN SAID THROAT, AND MEANS FOR DRIVING SAID FAN IN RESPONSE TO THE SIGNAL OF SAID LAST NAMED MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |