Patent US3360037A successfully refreshed from Google Patents.
US3360037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger u-bend tube arrangement
Assignee: Babcock and Wilcox Co
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Filing: 1965-08-24
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Granted: 1967-12-26
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Expires: 1985-08-24
Abstract
No abstract record available.
Inventors
- 👤 Johannes H Ammon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:50
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A TUBULAR ARRANGEMENT IN A HEAT EXCHANGER WHICH COMPRISES A PLURALITY OF U-BEND TUBES, A TUBE SHEET HAVING AN INNER CENTRAL AREA PORTION RECEIVING ONE END OF EACH OF SAID TUBES TO COMMUNICATE SAME WITH ONE FLUID COMPARTMENT, AND AN OUTER ANNULAR AREA PORTION RECEIVING THE OTHER END OF EACH OF SAID TUBES TO COMMUNICATE SAME WITH ANOTHER FLUID COMPARTMENT, SAID U-BEND TUBES BEING DISPOSED EQUIDISTANTLY IN AN ANNULAR BANK COMPOSED OF A PLURALITY OF EQUIANGULAR, SECTOR-SHAPED SUB-BANKS OF TUBES, THE TUBES IN EACH SUB-BANK BEING DISPOSED IN MUTUALLY PARALLEL PLANES.
Claim 2
Dependent Claim
91 words
A TUBULAR ARRANGEMENT IN A HEAT EXCHANGER WHICH COMPRISES A PLURALITY OF U-BEND TUBES, A TUBE SHEET HAVING AN INNER CENTRAL AREA PORTION RECEIVING ONE END OF EACH OF SAID TUBES TO COMMUNICATE SAME WITH ONE FLUID COMPARTMENT, AND AN OUTER ANNULAR AREA PORTION RECEIVING THE OTHER END OF EACH OF SAID TUBES TO COMMUNICATE SAME WITH ANOTHER FLUID COMPARTMENT, SAID U-BEND TUBES BEING DISPOSED EQUIDISTANTLY IN AN ANNULAR BANK COMPOSED OF A PLURALITY OF EQUIANGULAR, SECTOR-SHAPED SUB-BANKS OF TUBES, THE TUBES IN EACH SUB-BANK BEING DISPOSED IN MUTUALLY PARALLEL PLANES.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |