US3920069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Modine Manufacturing Co
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Filing: 1974-03-28
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Granted: 1975-11-18
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Expires: 1994-03-28
Abstract
Abstract A heat exchanger comprising a plurality of oval tubes each having side walls and opposite edges or ends that are thick relative to the thickness of each side wall and with each tube end having a transverse recess extending inwardly of the end between the sides thereof and located in the space between the interior of the tube and an outer edge of the tube and a tube header at each end of the heat exchanger having openings embracing the tubes in the areas between the recesses at each end of the heat exchanger and anchored in the recesses. The disclosure also includes a heat exchanger in which the tank is provided at each end of the heat exchanger enclosing the tube ends at the respective ends and having an edge portion anchored in the recesses.
Inventors
- 👤 James A Mosier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:23
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0219; F28F9/0224; F28F1/00; F28F1/02; F28F1/022; F28F9/04; F28F9/16; F28F9/18; F28F9/182; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/476; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
76 words
A heat exchanger, comprising: an oval tube having side walls and opposite ends that are thick relative to the thickness of each said side wall, each said end having a recess located between the sides thereof in the space between the interior of the tube and the outer edge surface of the tube; a tube header having an opening embracing said tube in the area between said recesses; and means anchoring said header in said recesses.
Claim 2
Dependent Claim
76 words
A heat exchanger, comprising: an oval tube having side walls and opposite ends that are thick relative to the thickness of each said side wall, each said end having a recess located between the sides thereof in the space between the interior of the tube and the outer edge surface of the tube; a tube header having an opening embracing said tube in the area between said recesses; and means anchoring said header in said recesses.
Claim 3
Dependent Claim
18 words
The heat exchanger of claim 1 wherein each said recess comprises groove means having a substantially flat bottom.
Claim 4
Dependent Claim
30 words
The heat exchanger Of claim 2 wherein each said header has an opening receiving said tube and defined by a flange located in said groove means and embracing said tube.
Claim 5
Dependent Claim
18 words
The heat exchanger of claim 3 wherein said flange has a right angled edge positioned against said tube.
Claim 6
Dependent Claim
37 words
The heat exchanger of claim 1 wherein there are provided an adjacent aligned pair of said heat exchangers with the adjacent headers including aligned flanges joined to each other to provide a bank of said heat exchangers.
Claim 7
Dependent Claim
97 words
A heat exchanger, comprising: a plurality of oval tubes, each tube of said plurality having side walls and opposite ends that are thick relative to the thickness of each said side wall, each said end having a transverse recess extending between the sides thereof and located in the space between the interior of said tube and the outer edge surface of said tube; a header having openings enclosing said tube ends, each header opening being defined by an edge portion located in a said recess; and means anchoring said edge portions of said header in said recesses.
Claim 8
Dependent Claim
97 words
A heat exchanger, comprising: a plurality of oval tubes, each tube of said plurality having side walls and opposite ends that are thick relative to the thickness of each said side wall, each said end having a transverse recess extending between the sides thereof and located in the space between the interior of said tube and the outer edge surface of said tube; a header having openings enclosing said tube ends, each header opening being defined by an edge portion located in a said recess; and means anchoring said edge portions of said header in said recesses.
Claim 9
Dependent Claim
18 words
The heat exchanger of claim 6 wherein each said recess comprises groove means having a substantially flat bottom.
Claim 10
Dependent Claim
148 words
A heat exchanger, comprising: a plurality of oval tubes, each tube of said plurality having side walls and opposite ends that are thick relative to the thickness of each said side wall, each said end having a transverse recess extending between the sides thereof and located in the space between the interior of the tube and the outer edge surface of the tube; a tube header at each end of the heat exchanger having openings embracing said tubes 11 in the areas between said recesses at each said end of the heat exchanger and located in said recesses; means anchoring said edge portions of said header in said recesses; a tank at each end of the heat exchanger enclosing the tube ends at said end and having a tank edge portion also located in each of said recesses; and means anchoring said tank edge portions in said recesses.
Claim 11
Dependent Claim
148 words
A heat exchanger, comprising: a plurality of oval tubes, each tube of said plurality having side walls and opposite ends that are thick relative to the thickness of each said side wall, each said end having a transverse recess extending between the sides thereof and located in the space between the interior of the tube and the outer edge surface of the tube; a tube header at each end of the heat exchanger having openings embracing said tubes 11 in the areas between said recesses at each said end of the heat exchanger and located in said recesses; means anchoring said edge portions of said header in said recesses; a tank at each end of the heat exchanger enclosing the tube ends at said end and having a tank edge portion also located in each of said recesses; and means anchoring said tank edge portions in said recesses.
Claim 12
Dependent Claim
30 words
The heat exchanger of claim 8 wherein each said header has an opening receiving a said tube and defined by a flange located in said groove and embracing said tube.
Claim 13
Dependent Claim
22 words
The heat exchanger of claim 9 wherein said flange has a right angled inner end comprising an edge positioned against said tube.
Claim 14
Dependent Claim
37 words
The heat exchanger of claim 8 wherein there are provided an adjacent aligned pair of said heat exchangers with the adjacent headers including aligned flanges joined to each other to provide a bank of said heat exchangers.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |