US3352289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generator
Assignee: Vapor Corp
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Filing: 1966-06-13
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Granted: 1967-11-14
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Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard Cunningham
- 👤 J D Kimmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
F; F22; F22B; F22B21/00; F22B21/22; F22B21/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN A STEAM GENERATOR, AN UPSTANDING COIL PEDESTAL SUPPORT, AN ANNULAR FIREPOT HOUSING HAVING AN ANNULAR FIREPOT THEREIN ARRANGED ABOUT SAID PEDESTAL SUPPORT, A PLURALITY OF COMBUSTION THROATS AND BURNERS AT THE LOWER END OF THE FIREPOT AND A CHOKE AT THE UPPER OF THE FIREPOT FOR DISCHARGING FLUE GASES UPWARDLY, A COIL HOUSING ABOVE SAID FIREPOT HOUSING, A CYLINDRICAL WALL COIL ALONG THE INNER SURFACE OF SAID COIL HOUSING, FIRST, SECOND AND THIRD CONICALLY SHAPED COILS OF SUCCESSIVELY SMALLER DIAMETER AND ARRANGED SUCCESSIVELY INWARDLY OF EACH OTHER AND SPACED INWARDLY OF SAID WALL COIL AND HAVING THEIR SMALLER ENDS EXTENDING DOWNWARDLY AND DEFINING WITH SAID WALL COIL AN ANNULAR SUBSTANTIALLY TRIANGULAR IN CROSS SECTION FLUE GAS RECEIVING CHAMBER ABOVE SAID FIREPOT CHOKE, SAID COIL HOUSING AND COILS BEING ARRANGED RELATIVE THE FIREPOT SO THAT THE FLUE GASES DISCHARGED FROM SAID CHOKE ENTER SAID FLUE GAS RECEIVING CHAMBER WIPING SAID WALL COIL AND THEN TRAVERSING INWARDLY THROUGH SAID CONICAL COILS TO THE CENTER THEREOF, AND A FLUE GAS COLLECTOR
Claim 2
Dependent Claim
169 words
IN A STEAM GENERATOR, AN UPSTANDING COIL PEDESTAL SUPPORT, AN ANNULAR FIREPOT HOUSING HAVING AN ANNULAR FIREPOT THEREIN ARRANGED ABOUT SAID PEDESTAL SUPPORT, A PLURALITY OF COMBUSTION THROATS AND BURNERS AT THE LOWER END OF THE FIREPOT AND A CHOKE AT THE UPPER OF THE FIREPOT FOR DISCHARGING FLUE GASES UPWARDLY, A COIL HOUSING ABOVE SAID FIREPOT HOUSING, A CYLINDRICAL WALL COIL ALONG THE INNER SURFACE OF SAID COIL HOUSING, FIRST, SECOND AND THIRD CONICALLY SHAPED COILS OF SUCCESSIVELY SMALLER DIAMETER AND ARRANGED SUCCESSIVELY INWARDLY OF EACH OTHER AND SPACED INWARDLY OF SAID WALL COIL AND HAVING THEIR SMALLER ENDS EXTENDING DOWNWARDLY AND DEFINING WITH SAID WALL COIL AN ANNULAR SUBSTANTIALLY TRIANGULAR IN CROSS SECTION FLUE GAS RECEIVING CHAMBER ABOVE SAID FIREPOT CHOKE, SAID COIL HOUSING AND COILS BEING ARRANGED RELATIVE THE FIREPOT SO THAT THE FLUE GASES DISCHARGED FROM SAID CHOKE ENTER SAID FLUE GAS RECEIVING CHAMBER WIPING SAID WALL COIL AND THEN TRAVERSING INWARDLY THROUGH SAID CONICAL COILS TO THE CENTER THEREOF, AND A FLUE GAS COLLECTOR
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |