Patent US3866675A successfully refreshed from Google Patents.
US3866675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a heat exchanger and a heat exchanger
Assignee: Modine Manufacturing Co
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Filing: 1973-08-03
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Granted: 1975-02-18
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Expires: 1993-08-03
Abstract
Abstract A method of making a heat exchanger having a tank and spaced tubes which comprises positioning an end of each tube snugly within a slot all of which are spaced from each other in a header plate. Each slot has an open end at an edge of the header plate and a closed end spaced from the opposite edge of the plate. The header plate and tubes are assembled with a metal part which becomes a portion of the tank of the heat exchanger with one tank edge portion covering and closing the open ends of the slots to fix the tubes in position in their respective slots and with the other tank edge portion contacting the portion of the header plate adjacent and outwardly of the closed ends of the slots. Then the contacting areas of the tube ends, the tank edge portions and the header plate are joined together as by brazing. The disclosure also includes a heat exchanger as prepared by this method.
Inventors
- 👤 Melvin C Bardon
- 👤 Norman G Bauernfeind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:45
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; F28F9/04; F28F9/16; F28F9/18; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/476; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/4938; Y10T29/49826; Y10T29/49895; Y10T29/49902
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
146 words
A heat exchanger, comprising: a header plate having a pair of opposite side portions with spaced slots extending inwardly from one plate edge portion to short of the other plate edge portion, each slot having an open end at said one plate edge portion; a plurality of fluid flow tubes each having a tube end received snugly in a said slot; a tank part sheet having opposite edge portions on said header plate to enclose said tube end with one tank edge portion covering and closing said slot open ends and the other tank edge portion contacting said other plate edge portion, the intermediate portion of said tank part sheet between said edge portions being spaced from said tube ends to define a fluid tank means with said header plate; and joining means joining together said tube ends, said tank edge portions and said header plate.
Claim 2
Dependent Claim
146 words
A heat exchanger, comprising: a header plate having a pair of opposite side portions with spaced slots extending inwardly from one plate edge portion to short of the other plate edge portion, each slot having an open end at said one plate edge portion; a plurality of fluid flow tubes each having a tube end received snugly in a said slot; a tank part sheet having opposite edge portions on said header plate to enclose said tube end with one tank edge portion covering and closing said slot open ends and the other tank edge portion contacting said other plate edge portion, the intermediate portion of said tank part sheet between said edge portions being spaced from said tube ends to define a fluid tank means with said header plate; and joining means joining together said tube ends, said tank edge portions and said header plate.
Claim 3
Dependent Claim
55 words
The heat exchanger of claim 1 wherein said other plate edge portion is shaped to provide a flange which is positioned to overlap said opposite tank edge portion and said one tank edge portion is shaped to provide a flange which is positioned over said slots at their open ends to abut against said tubes.
Claim 4
Independent Claim
162 words
The method of making a heat exchanger having a tank and spaced tubes, comprising: providing a header plate having a pair of opposite side edge portions with spaced slots extending inwardly from one plate edge portion to short of the other plate edge portion, each slot having an open end at said one plate edge portion; providing a plurality of fluid flow tubes each having a tube end; positioning a tube end snugly in each said slot; positioning a metal tank part sheet having opposite edge portions on said header plate to enclose said tube end with one tank edge portion covering and closing said slot open ends and the other tank edge portion contacting said other plate edge portion, the intermediate portion of said tank part sheet between said edge portions being spaced from said tube ends to define a fluid tank means with said header plate; and joining together said tube ends, said tank edge portions and said header plate.
Claim 5
Independent Claim
162 words
The method of making a heat exchanger having a tank and spaced tubes, comprising: providing a header plate having a pair of opposite side edge portions with spaced slots extending inwardly from one plate edge portion to short of the other plate edge portion, each slot having an open end at said one plate edge portion; providing a plurality of fluid flow tubes each having a tube end; positioning a tube end snugly in each said slot; positioning a metal tank part sheet having opposite edge portions on said header plate to enclose said tube end with one tank edge portion covering and closing said slot open ends and the other tank edge portion contacting said other plate edge portion, the intermediate portion of said tank part sheet between said edge portions being spaced from said tube ends to define a fluid tank means with said header plate; and joining together said tube ends, said tank edge portions and said header plate.
Claim 6
Dependent Claim
27 words
The method of claim 3 wherein said other plate edge portion is shaped to provide a flange which is positioned to overlap said opposite tank edge portion.
Claim 7
Dependent Claim
32 words
The method of claim 3 wherein said one tank edge portion is shaped to provide a flange which is positioned over said slots at their open ends to abut against said tubes.
Claim 8
Dependent Claim
54 words
The method of claim 3 wherein said other plate edge portion is shaped to provide a flange which is positioned to overlap said opposite tank edge portion and said one tank edge portion is shaped to provide a flange which is positioned over said slots at their open ends to abut against said tubes,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |