Patent US3659326A successfully refreshed from Google Patents.
US3659326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing heat exchange component
Assignee: Olin Corp
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Filing: 1970-02-02
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Granted: 1972-05-02
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Expires: 1990-02-02
Abstract
Abstract A process of producing continuous strip having at least one fluid passageway with integrally formed fin members, which comprises forming a pattern of weld inhibiting material on a first strip or sheet with a portion of the pattern defining the fluid passageway, and a further portion of the pattern extending along the edge of the strip or sheet defining a fin surface. A second strip or sheet of metal is pressure welded to the first strip or sheet in substantially all areas not containing the weld inhibiting material and the fin surface is formed into a plurality of fin members. The fin members may be formed by cutting, or by a combination of cutting, bending and twisting. Additional fin surface is obtained by separating the strip or sheet at their edge corresponding to the further portion of the pattern of weld inhibiting material. The strip or sheet, in accordance with the invention, may be formed into heat exchangers of any desired shape including a helix, spiral or serpentine.
Inventors
- 👤 Norval A Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:47
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49369; Y10T29/49371
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
127 words
A process for producing finned strip having at least one inflatable fluid passageway with integrally formed fin members comprising: providing at least one first strip of metal; forming a first pattern of weld inhibiting material on said first strip, defining at least one inflatable fluid passageway; forming a second pattern of weld inhibiting material upon at least a portion of at least one longitudinal edge of said first strip extending substantially along the length of said edge, said second pattern being spaced from said first pattern and defining a fin surface; placing at least one second strip of metal upon said first strip; bonding said sheets together at substantially all portions not containing weld inhibiting material; and forming said fin surface into a plurality of fin members.
Claim 2
Dependent Claim
127 words
A process for producing finned strip having at least one inflatable fluid passageway with integrally formed fin members comprising: providing at least one first strip of metal; forming a first pattern of weld inhibiting material on said first strip, defining at least one inflatable fluid passageway; forming a second pattern of weld inhibiting material upon at least a portion of at least one longitudinal edge of said first strip extending substantially along the length of said edge, said second pattern being spaced from said first pattern and defining a fin surface; placing at least one second strip of metal upon said first strip; bonding said sheets together at substantially all portions not containing weld inhibiting material; and forming said fin surface into a plurality of fin members.
Claim 3
Dependent Claim
36 words
A process as in claim 1 which includes the step of: inflating said passageway to form an unobstructed tubular passageway completely defined by said first and second strips, and adapted to contain a heat exchange medium.
Claim 4
Dependent Claim
55 words
A process as in claim 2 wherein the forming of said fin surface into a plurality of fin members includes separating said strips of metal from each other at said second pattern at said at least one edge to form added fin surface in heat exchange relationship with said at least one inflatable fluid passageway.
Claim 5
Dependent Claim
27 words
A process as in claim 2 wherein the forming of said fin members includes the step of cutting said fin surface into a plurality of fin members.
Claim 6
Dependent Claim
27 words
A process as in claim 3 wherein the forming of said fin members includes the step of cutting said fin surface into a plurality of fin members.
Claim 7
Dependent Claim
15 words
A process as in claim 2 wherein the fin members are bent a desired amount.
Claim 8
Dependent Claim
16 words
A process as in claim 6 in which adjacent fin members are bent to differing extents.
Claim 9
Dependent Claim
15 words
A process as in claim 6 wherein the fin members are both bent and twisted.
Claim 10
Dependent Claim
15 words
A process as in claim 2 in which said strip has a plurality of passageways.
Claim 11
Dependent Claim
19 words
A process as in claim 2 wherein said strip is formed into a heat exchange component of desired shape.
Claim 12
Dependent Claim
13 words
A proceSs as in claim 10 in which said shape is a helix.
Claim 13
Dependent Claim
13 words
A process as in claim 10 in which the shape is a spiral.
Claim 14
Dependent Claim
13 words
A process as in claim 10 in which the shape is a serpentine.
Claim 15
Dependent Claim
30 words
A process as in claim 2 wherein an identifying mark is placed upon one of the strips after the patterning operation, said mark being utilized to subdivide the bonded sheets.
Claim 16
Dependent Claim
166 words
A process for producing strip having at least one inflatable fluid passageway with integrally formed fin members comprising: providing at least one sheet of metal, said sheet of metal containing a plurality of strip areas; forming a first pattern of weld inhibiting material on said first sheet, defining at least one inflatable fluid passageway in each of said strip areas; forming a second pattern of weld inhibiting material upon at least a portion of at least one longitudinal edge of each of said strip areas, said second pattern extending substantially along the length of said edge, said second pattern being spaced from said first pattern and defining a fin surface; placing at least one second sheet of metal upon said first sheet; bonding said sheets together at substantially all portions not containing weld inhibiting material; forming said bonded sheets into a plurality of strips, with each strip corresponding to one of said strip areas; and forming said fin surface into a plurality of individual fin members.
Claim 17
Dependent Claim
166 words
A process for producing strip having at least one inflatable fluid passageway with integrally formed fin members comprising: providing at least one sheet of metal, said sheet of metal containing a plurality of strip areas; forming a first pattern of weld inhibiting material on said first sheet, defining at least one inflatable fluid passageway in each of said strip areas; forming a second pattern of weld inhibiting material upon at least a portion of at least one longitudinal edge of each of said strip areas, said second pattern extending substantially along the length of said edge, said second pattern being spaced from said first pattern and defining a fin surface; placing at least one second sheet of metal upon said first sheet; bonding said sheets together at substantially all portions not containing weld inhibiting material; forming said bonded sheets into a plurality of strips, with each strip corresponding to one of said strip areas; and forming said fin surface into a plurality of individual fin members.
Claim 18
Dependent Claim
33 words
A process as in claim 15 which includes the step of inflating said at least one passageway in said strips to form an unobstructed tubular passageway adapted to contain a heat exchange medium.
Claim 19
Dependent Claim
60 words
A process as in claim 16 wherein the forming of said fin surface into a plurality of fin members includes separating said sheets of metal from each other in each of said strips at said second pattern in said at least one edge to form added fin surface in heat exchange relationship with said at least one inflatable fluid passageway.
Claim 20
Dependent Claim
27 words
A process as in claim 16 wherein the forming of said fin members includes the step of cutting said fin surface into a plurality of fin members.
Claim 21
Dependent Claim
27 words
A process as in claim 17 wherein the forming of said fin members includes the step of cutting said fin surface into a plurality of fin members.
Claim 22
Dependent Claim
15 words
A process as in claim 16 wherein the fin members are bent a desired amount.
Claim 23
Dependent Claim
16 words
A process as in claim 20 in which adjacent fin members are bent to differing extents.
Claim 24
Dependent Claim
15 words
A process as in claim 20 wherein the fin members are both bent and twisted.
Claim 25
Dependent Claim
17 words
A process as in claim 16 in which each of said strips has a plurality of passageways.
Claim 26
Dependent Claim
21 words
A process as in claim 16 wherein each of said strips is formed into a heat exchange component of desired shape.
Claim 27
Dependent Claim
13 words
A process as in claim 24 in which said shape is a helix.
Claim 28
Dependent Claim
13 words
A process as in claim 24 in which the shape is a spiral.
Claim 29
Dependent Claim
13 words
A process as in claim 24 in which the shape is a serpentine.
Claim 30
Dependent Claim
30 words
A process as in claim 16 wherein an identifying mark is placed upon one of the sheets after the patterning operation, said mark being utilized to subdivide the bonded sheets.
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |