US4582127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube end plate for heat exchanger with tubes and water boxes
Assignee: Chausson Usines SA
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Filing: 1983-12-16
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Granted: 1986-04-15
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Expires: 2003-12-16
Abstract
Abstract The tube end plate for a heat exchanger having tubes engaged into collars of the tube end plate which is covered by a water box is provided with a peripheral groove cooperating with a lower portion of the water box to which it is rigidly connected for forming therewith a hollow beam. There is provided a bottom portion of tube end plate in which are made tube passages defined by collars to which are brazed the tubes and between which are provided transverse slots extending transversely up to an inner wall defining the peripheral groove.
Inventors
- 👤 Jean-Pierre Moranne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:36
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/04; F28F9/16; F28F9/18; F28F9/0219; F28F9/0224; F28F9/0226; F28F2225/00; F28F2225/08; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/053; Y10S165/057
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A tube end plate for a heat exchanger having tubes engaged into collars of the tube end plate which is covered by a water box, the tube end plate having a peripheral groove cooperating with a lower portion of the water box to which it is rigidly connected for forming therewith a hollow beam, and wherein there is provided a bottom portion of the tube end plate in which are made tube passages defined by collars to which are brazed the tubes and between which are provided transverse slots extending transversely up to an inner wall defining the peripheral groove, the transverse slots accommodating thermally-caused deformations of the tube end plate between adjacent tubes whereby flexibility of the tube end plate is insured.
Claim 2
Dependent Claim
123 words
A tube end plate for a heat exchanger having tubes engaged into collars of the tube end plate which is covered by a water box, the tube end plate having a peripheral groove cooperating with a lower portion of the water box to which it is rigidly connected for forming therewith a hollow beam, and wherein there is provided a bottom portion of the tube end plate in which are made tube passages defined by collars to which are brazed the tubes and between which are provided transverse slots extending transversely up to an inner wall defining the peripheral groove, the transverse slots accommodating thermally-caused deformations of the tube end plate between adjacent tubes whereby flexibility of the tube end plate is insured.
Claim 3
Dependent Claim
17 words
A tube end plate according to claim 1, wherein the transverse slots terminate in a rounded portion.
Claim 4
Dependent Claim
42 words
A tube end plate according to claim 1, wherein at least one of the transverse slots extends up to slanting edges leading to bottom of the peripherical groove for supporting a transverse gasket connected to a peripheral gasket positioned in the groove.
Claim 5
Dependent Claim
20 words
A tube end plate according to claim 3, wherein the slanting edges form an angle of about 60° with horizontal.
Claim 6
Dependent Claim
31 words
A tube end plate according to claim 1, wherein the transverse slots have a depth greater than a thickness of the tube end plate and less than double of said thickness.
Claim 7
Dependent Claim
51 words
A tube end plate according to claim 3, wherein the peripheral gasket is integral with at least one transverse wall gasket corresponding to each slot opening at the slanting edges, said wall gaskets having a swelling portion when in their rest condition, said swelling portion extending substantially opposite each slanting edge.
Claim 8
Dependent Claim
17 words
A tube end plate according to claim 1, wherein the tube passages are defined by protruding collars.
References Cited (Backward Citations)
US352380A
Cited
US352378A
Cited
GB699032A
Cited
FR2222623A1
Cited
US4305459A
Cited
US4234041A
Cited
US4485867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |