US3267913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for supporting tubes
Assignee: Kohlenscheidungs GmbH
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Filing: 1964-08-04
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Granted: 1966-08-23
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 Bruhl Jakob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:12
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/202; F22B37/203; F22B37/14; F22B37/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A HEAT EXCHANGER HAVING AN ELONGATED GAS PASS FOR FLOW OF HEATING GASES THERETHROUGH, IN COMBINATION A BANK OF UPRIGHT PARALLELLY SPACED TUBULAR COILS SUSPENDED IN SAID GAS PASS, EACH COIL COMPRISING A MULTIPLICITY OF VERTICALLY SPACED TUBES; SUPPORTING MEANS FOR SAID COILS COMPRISING A FLUID COOLED HANGER TUBE POSITIONED BETWEEN SAID TUBULAR COILS; AT LEAST ONE CONTINUOUS LONGITUDINAL FIN PROJECTING FROM SAID HANGER TUBE AND FACING SAID VERTICALLY SPACED TUBES AND EXTENDING THROUGHOUT THE HEIGHT OF SAID COILS, SAID FIN HAVING A WIDTH WITHIN THE COOLING RANGE OF SAID HANGER TUBE TO PREVENT HIGH TEMPERATURE CORROSION OF SAID FIN; SAID FIN BEING PROVIDED WITH CUTOUTS TO FIT THE CONTOUR OF SAID VERTICALLY SPACED TUBES, SAID CUT-OUTS BEING OF A DEPTH PENETRATING THE MAJOR PORTION OF THE WIDTH OF SAID FIN; AND A WELD APPLIED TO SAID FIN ONLY AND TO SAID VERTICALLY SPACED TUBES WITHIN THE EXTEND OF SAID CUT-OUTS AND WITHOUT EMPLOYING A DIRECT WELD TO THE BODY OF SAID HANGER TUBE.
Claim 2
Dependent Claim
165 words
IN A HEAT EXCHANGER HAVING AN ELONGATED GAS PASS FOR FLOW OF HEATING GASES THERETHROUGH, IN COMBINATION A BANK OF UPRIGHT PARALLELLY SPACED TUBULAR COILS SUSPENDED IN SAID GAS PASS, EACH COIL COMPRISING A MULTIPLICITY OF VERTICALLY SPACED TUBES; SUPPORTING MEANS FOR SAID COILS COMPRISING A FLUID COOLED HANGER TUBE POSITIONED BETWEEN SAID TUBULAR COILS; AT LEAST ONE CONTINUOUS LONGITUDINAL FIN PROJECTING FROM SAID HANGER TUBE AND FACING SAID VERTICALLY SPACED TUBES AND EXTENDING THROUGHOUT THE HEIGHT OF SAID COILS, SAID FIN HAVING A WIDTH WITHIN THE COOLING RANGE OF SAID HANGER TUBE TO PREVENT HIGH TEMPERATURE CORROSION OF SAID FIN; SAID FIN BEING PROVIDED WITH CUTOUTS TO FIT THE CONTOUR OF SAID VERTICALLY SPACED TUBES, SAID CUT-OUTS BEING OF A DEPTH PENETRATING THE MAJOR PORTION OF THE WIDTH OF SAID FIN; AND A WELD APPLIED TO SAID FIN ONLY AND TO SAID VERTICALLY SPACED TUBES WITHIN THE EXTEND OF SAID CUT-OUTS AND WITHOUT EMPLOYING A DIRECT WELD TO THE BODY OF SAID HANGER TUBE.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |