US3218433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater
Assignee: KIM HOTSTART Manufacturing Co
•
Filing: 1964-01-20
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Granted: 1965-11-16
•
Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 William A Steenbergen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:18
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02N19/10; F24; F24H; F24H1/00; F24H1/10; F24H1/101; F24H1/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN ELECTRIC HEATER FOR THE COOLING SYSTEM WITHIN AN INTERNAL COMBUSTION ENGINE, COMPRISING: A SEALED ENCLOSURE OF GENERALLY RECTANGULAR CONFIGURATION; A FLUID INLET CONNECTION FORMED INTEGRALLY ON ONE VERTICAL END WALL OF SAID ENCLOSURE, SAID ONE END WALL BEING SELECTIVELY RELEASABLE FROM THE REMAINDER OF SAID ENCLOSURE; A FLUID OUTLET CONNECTION FORMED INTEGRALLY ON THE TOP WALL OF SAID ENCLOSURE IN OPEN COMMUNICATION WITH THE INTERIOR OF SAID ENCLOSURE; A ONE-WAY VALVE AT THE INTERIOR OF SAID ENCLOSURE MOUNTED ON SAID FLUID INLET CONNECTION ADAPTED TO PREVENT ESCAPE OF FLUID FROM SAID ENCLOSURE THROUGH SAID FLUID INLET; AND HEATER MEANS CARRIED ON SAID ONE END WALL OF SAID ENCLOSURE, SAID HEATER MEANS BEING CONCENTRATED WITHIN SAID ENCLOSURE AT A LOCATION SITUATED DIRECTLY BENEATH SAID FLUID OUTLET CONNECTION.
Claim 2
Dependent Claim
127 words
AN ELECTRIC HEATER FOR THE COOLING SYSTEM WITHIN AN INTERNAL COMBUSTION ENGINE, COMPRISING: A SEALED ENCLOSURE OF GENERALLY RECTANGULAR CONFIGURATION; A FLUID INLET CONNECTION FORMED INTEGRALLY ON ONE VERTICAL END WALL OF SAID ENCLOSURE, SAID ONE END WALL BEING SELECTIVELY RELEASABLE FROM THE REMAINDER OF SAID ENCLOSURE; A FLUID OUTLET CONNECTION FORMED INTEGRALLY ON THE TOP WALL OF SAID ENCLOSURE IN OPEN COMMUNICATION WITH THE INTERIOR OF SAID ENCLOSURE; A ONE-WAY VALVE AT THE INTERIOR OF SAID ENCLOSURE MOUNTED ON SAID FLUID INLET CONNECTION ADAPTED TO PREVENT ESCAPE OF FLUID FROM SAID ENCLOSURE THROUGH SAID FLUID INLET; AND HEATER MEANS CARRIED ON SAID ONE END WALL OF SAID ENCLOSURE, SAID HEATER MEANS BEING CONCENTRATED WITHIN SAID ENCLOSURE AT A LOCATION SITUATED DIRECTLY BENEATH SAID FLUID OUTLET CONNECTION.
References Cited (Backward Citations)
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Cited
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FR900493A
Cited
US2440610A
Cited
US2492001A
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US2592340A
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US2914646A
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |