Patent US3221720A successfully refreshed from Google Patents.
US3221720A
Expired / Lapsed
US
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System for cooling the engine of a motor vehicle and heating the air of the vehicle
Assignee: LA PUBLICITE FRANCAISE
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Filing: 1964-09-17
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Granted: 1965-12-07
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Expires: 1984-09-17
Abstract
No abstract record available.
Inventors
- 👤 Dangauthier Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:22
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00485; F; F01; F01P; F01P11/00; F01P11/02; F01P11/0204; F01P11/0209; F01P11/0238; F01P3/00; F01P3/22; F01P3/2207; F01P7/00; F01P7/14; F01P7/16; F01P11/028; F01P11/0285; F01P2060/00; F01P2060/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A SYSTEM FOR COOLING THE HEAT ENGINE OF A MOTOR VEHICLE AND HEATING THE AIR INSIDE THE VEHICLE, SAID SYSTEM COMPRISING A COOLING RADIATOR HAVING A FILLER APERTURE AND FILLER CAP FOR CLOSING THE FILLER APERTURE, A COOLING WATER CIRCUIT CONNECTING THE RADIATOR TO THE ENGINE, A THERMOSTATICALLY CONTROLLED VALVE INSERTED IN THE PART OF THE CIRCUIT RETURNING WATER FROM THE ENGINE TO THE RADIATOR, SAID VALVE HAVING NO APERTURE THEREIN AND PREVENTING ANY FLOW OF WATER FROM THE ENGINE TO THE RADIATOR WHEN THE VALVE IS APPLIED AGAINST THE SEAT THEREFOR, A BY-PASS CONDUIT BYPASSING THE VALVE AND HAVING ONE END CONNECTED TO THE PART OF THE CIRCUIT CONNECTING THE ENGINE TO THE VALVE AND THE OTHER END OPEN AND LOCATED IN THE UPPER MANIFOLD OF THE RADIATOR IN SUCH POSITION THAT THE OPEN END IS CLOSED BY THE FILLER CAP WHEN THE LATTER IS IN ITS OPERATIVE POSITION FOR CLOSING THE FILLER APERTURE.
Claim 2
Independent Claim
155 words
A SYSTEM FOR COOLING THE HEAT ENGINE OF A MOTOR VEHICLE AND HEATING THE AIR INSIDE THE VEHICLE, SAID SYSTEM COMPRISING A COOLING RADIATOR HAVING A FILLER APERTURE AND FILLER CAP FOR CLOSING THE FILLER APERTURE, A COOLING WATER CIRCUIT CONNECTING THE RADIATOR TO THE ENGINE, A THERMOSTATICALLY CONTROLLED VALVE INSERTED IN THE PART OF THE CIRCUIT RETURNING WATER FROM THE ENGINE TO THE RADIATOR, SAID VALVE HAVING NO APERTURE THEREIN AND PREVENTING ANY FLOW OF WATER FROM THE ENGINE TO THE RADIATOR WHEN THE VALVE IS APPLIED AGAINST THE SEAT THEREFOR, A BY-PASS CONDUIT BYPASSING THE VALVE AND HAVING ONE END CONNECTED TO THE PART OF THE CIRCUIT CONNECTING THE ENGINE TO THE VALVE AND THE OTHER END OPEN AND LOCATED IN THE UPPER MANIFOLD OF THE RADIATOR IN SUCH POSITION THAT THE OPEN END IS CLOSED BY THE FILLER CAP WHEN THE LATTER IS IN ITS OPERATIVE POSITION FOR CLOSING THE FILLER APERTURE.
References Cited (Backward Citations)
DE943918C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |