US3929189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger structure
Assignee: Babcock and Wilcox Co
•
Filing: 1974-03-20
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Granted: 1975-12-30
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Expires: 1994-03-20
Abstract
Abstract A vibration suppressing structural framework for tubular heat exchangers including retaining members cooperating with one another to restrain movement of the tubes.
Inventors
- 👤 Andrew P Lecon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:10
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/007; F28F9/013; F28F9/0132; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/202; F28F9/0135
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A tubular heat exchanger disposed within a passageway, means for conveying a heated fluid stream over the heat exchanger and means for passing a fluid to be heated through the heat exchanger, said heat exchanger having at least one bank of spaced tube rows arranged across the fluid stream in side-by-side parallel relation, each of the rows being formed of substantially coplanar return bend tube segments spaced in the direction of flow of the fluid stream, and means for suppressing vibration of the heat exchanger, said last named means including rigidly connected first and second inTersecting plate members, wherein first plate members are paired to contiguously straddle each of at least some of said rows, and second plate members are spaced from and extend between return bend tube segments of said straddled rows, the first plate members being slotted to accommodate the substantially perpendicular extension therethrough of intersecting second plate members, and said second plate members being press fit into respective slots of at least one of the first plate members intersecting therewith.
Claim 2
Dependent Claim
173 words
A tubular heat exchanger disposed within a passageway, means for conveying a heated fluid stream over the heat exchanger and means for passing a fluid to be heated through the heat exchanger, said heat exchanger having at least one bank of spaced tube rows arranged across the fluid stream in side-by-side parallel relation, each of the rows being formed of substantially coplanar return bend tube segments spaced in the direction of flow of the fluid stream, and means for suppressing vibration of the heat exchanger, said last named means including rigidly connected first and second inTersecting plate members, wherein first plate members are paired to contiguously straddle each of at least some of said rows, and second plate members are spaced from and extend between return bend tube segments of said straddled rows, the first plate members being slotted to accommodate the substantially perpendicular extension therethrough of intersecting second plate members, and said second plate members being press fit into respective slots of at least one of the first plate members intersecting therewith.
Claim 3
Dependent Claim
41 words
The tubular heat exchanger according to claim 1 wherein respective ends of the first plate members protrude from opposite sides of the tube bank and including tying plate members rigidly interconnecting the ends protruding on the same side of said bank.
Claim 4
Dependent Claim
50 words
The tubular heat exchanger according to claim 1 wherein the slots in at least one of each of the paired first plate members are each formed with at least one dimension of lesser magnitude than the corresponding dimension of that portion of second plate member to lie within the slot.
Claim 5
Dependent Claim
27 words
The tubular heat exchanger according to claim 1 wherein said second plate members are weldably connected to at least one of the first plate members intersecting therewith.
Claim 6
Dependent Claim
19 words
The tubular heat exchanger according to claim 1 wherein said first and second plate members are of rectilinear configuration.
Claim 7
Dependent Claim
23 words
The tubular heat exchanger according to claim 1 wherein each of said second plate members is a T-shaped bar having a tapered stem.
References Cited (Backward Citations)
US1430769A
Cited
US2893698A
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US3420297A
Cited
US3545534A
Cited
US3575236A
Cited
US3677339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |