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US3890104A Expired / Lapsed US ⏱️ 0.0 years remaining

Catalytic cartridge

Assignee: SAES Getters SpA
•
Filing: 1972-05-03
•
Granted: 1975-06-17
•
Expires: 1992-05-03
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Abstract

Abstract A catalytic cartridge formed of a strip folded alternately in opposite directions such that the strip comprises a plurality of members. Each member comprises a first spirated segment, an outer circumferential segment, a second spirated segment, and an inner circumferential segment. The inner circumferential segment of any given member is attached to the first spirated segment of the next member. A catalytic material is carried by the strip.

Inventors

  • 👤 Paolo Della Porta
  • 👤 Bruno Ferrario
  • 👤 Angelo Cantaluppi
  • 👤 Paolo Montalenti
  • 👤 Fiziano A Giorgi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 22:53
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/48; B01J23/50; B01J12/00; B01J12/007; B01J19/00; B01J19/24; B01J19/248; B01J19/249; B01J8/00; B01J8/02; B01J8/06; B01J8/067; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2807; F01N3/281; F01N3/2814; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00796; B01J2208/00805; B01J2208/00814; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00085; B01J2219/18; B01J2219/185; B01J2219/24; B01J2219/2401; B01J2219/245; B01J2219/2451; B01J2219/2455; B01J2219/2461; B01J2219/2462; B01J2219/2476; B01J2219/2477; B01J2219/2479; B01J2219/2482; B01J2219/2483; B01J2219/2485; B01J2219/32; B01J2219/324; B01J2219/32466; B01J2219/32475; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T29/00; Y10T29/49; Y10T29/49345; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12354; Y10T428/12493; Y10T428/12736; Y10T428/12771; Y10T428/12861; Y10T428/12896

Claims Analysis

Total Claims: 38
Claim 1
Independent Claim 91 words
A CATALYTIC CARTRIDGE FORMED OF A METAL STRIP FOLDED ALTERNATELY IN OPPOSITE DIRECTIONS SUCH THAT THE STRIP COMPRISES A PLURALITY OF MEMBERS EACH COMPRISING: A. A FIRST SPIRATED SEGMENT, B. AN OUTER CIRCUMFERENTIAL SEGMENT ATTACHED TO THE FIRST SPIRATED SEGMENT, C. A SECOND SPIRATED SEGMENT ATTACHED TO THE OUTER CIRCUMFERRENTIAL SEGMENT, D. AN INNER CIRCUMFERENTIAL SEGMENT ATTACHED TO THE SECOND SPIRATED SEGMENT, WHEREIN THE INNER CIRCUMFERENTIAL SEGMENT OF ANY GIVEN MEMBER IS ATTACHED TO THE FIRST SPIRATED SEGMENT OF THE NEXT MEMBER, WHEREIN A CATALYTIC MATERIAL IS CARRIED BY THE STRIP.
Claim 2
Dependent Claim 91 words
A CATALYTIC CARTRIDGE FORMED OF A METAL STRIP FOLDED ALTERNATELY IN OPPOSITE DIRECTIONS SUCH THAT THE STRIP COMPRISES A PLURALITY OF MEMBERS EACH COMPRISING: A. A FIRST SPIRATED SEGMENT, B. AN OUTER CIRCUMFERENTIAL SEGMENT ATTACHED TO THE FIRST SPIRATED SEGMENT, C. A SECOND SPIRATED SEGMENT ATTACHED TO THE OUTER CIRCUMFERRENTIAL SEGMENT, D. AN INNER CIRCUMFERENTIAL SEGMENT ATTACHED TO THE SECOND SPIRATED SEGMENT, WHEREIN THE INNER CIRCUMFERENTIAL SEGMENT OF ANY GIVEN MEMBER IS ATTACHED TO THE FIRST SPIRATED SEGMENT OF THE NEXT MEMBER, WHEREIN A CATALYTIC MATERIAL IS CARRIED BY THE STRIP.
Claim 3
Dependent Claim 26 words
The cartridge of claim 1 in combination with a cylindrical sleeve, the inside wall of which is in heat conductive contact with the outer circumferential segments.
Claim 4
Dependent Claim 3 words
which is curved,
Claim 5
Dependent Claim 3 words
which is curved,
Claim 6
Dependent Claim 3 words
which is curved,
Claim 7
Dependent Claim 3 words
which is curved,
Claim 8
Dependent Claim 3 words
which is curved,
Claim 9
Dependent Claim 3 words
which is curved,
Claim 10
Dependent Claim 3 words
which is curved,
Claim 11
Dependent Claim 3 words
which is curved,
Claim 12
Dependent Claim 32 words
wherein a chord of the curve of the second spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the second spirated segment,
Claim 13
Dependent Claim 32 words
wherein a chord of the curve of the second spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the second spirated segment,
Claim 14
Dependent Claim 32 words
wherein a chord of the curve of the first spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the first spirated segment,
Claim 15
Dependent Claim 32 words
wherein a chord of the curve of the first spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the first spirated segment,
Claim 16
Dependent Claim 32 words
wherein a chord of the curve of the first spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the first spirated segment,
Claim 17
Dependent Claim 32 words
wherein a chord of the curve of the first spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the first spirated segment,
Claim 18
Dependent Claim 32 words
wherein a chord of the curve of the second spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the second spirated segment,
Claim 19
Dependent Claim 32 words
wherein a chord of the curve of the second spirated segment is at an acute angle to the radius of the cartridge passing through the inner end of the second spirated segment,
Claim 20
Dependent Claim 34 words
The catalytic cartridge of claim 1 further comprising a sleeve wherein the outer circumferential segments contact the inner wall of the cylindrical sleeve along substantially all of the outer surface of each circumferential segment.
Claim 21
Dependent Claim 22 words
The cartridge of claim 1 wherein the catalytic material is carried by the strip in the form of an electroplated coating thereon.
Claim 22
Dependent Claim 135 words
wherein the second spirated segment lies between the chord and the radius, D. an inner circumferential segment attached to the second spirated segment along their common fold line, said inner circumferential segment maintaining a separation between the second spirated segment of one member and the first spirated segment of the next adjacent member, Wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, wherein the outer walls of the outer circumferential segments of the members describe an interrupted cylindrical surface comprising the outer periphery of the cartridge, wherein the inner circumferential segments describe a circle, wherein adjacent walls of first and second spirated segments contact each other in the vicinity of their contiguous inner circumferential segments.
Claim 23
Dependent Claim 135 words
wherein the second spirated segment lies between the chord and the radius, D. an inner circumferential segment attached to the second spirated segment along their common fold line, said inner circumferential segment maintaining a separation between the second spirated segment of one member and the first spirated segment of the next adjacent member, Wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, wherein the outer walls of the outer circumferential segments of the members describe an interrupted cylindrical surface comprising the outer periphery of the cartridge, wherein the inner circumferential segments describe a circle, wherein adjacent walls of first and second spirated segments contact each other in the vicinity of their contiguous inner circumferential segments.
Claim 24
Dependent Claim 44 words
wherein the first spirated segment lies between the cord and the radius, B. an outer circumferential segment attached to the first spirated segment along their common fold line, C. a second spirated segment attached to the outer circumferential segment along their common fold line,
Claim 25
Dependent Claim 44 words
wherein the first spirated segment lies between the cord and the radius, B. an outer circumferential segment attached to the first spirated segment along their common fold line, C. a second spirated segment attached to the outer circumferential segment along their common fold line,
Claim 26
Dependent Claim 44 words
wherein the first spirated segment lies between the chord and the radius, B. an outer circumferential segment attached to the first spirated segment along their common fold line, C. a second spirated segment attached to the outer circumferential segment along their common fold line,
Claim 27
Dependent Claim 44 words
wherein the first spirated segment lies between the chord and the radius, B. an outer circumferential segment attached to the first spirated segment along their common fold line, C. a second spirated segment attached to the outer circumferential segment along their common fold line,
Claim 28
Dependent Claim 371 words
wherein the second spirated segment lies between the chord and the radius, D. an inner circumferential segment attached to the second spirated segment along their common fold line, said inner circumferential segment maintaining a separation between the second spirated segment of one member and the first spirated segment of the next adjacent member, wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, wherein the outer walls of the outer circumferential segments of the members describe an interrupted cylindrical surface comprising the outer periphery of the cartridge, wherein the inner circumferential segments describe a circle, wherein adjacent walls of first and second spirated segments contact each other in the vicinity of their contiguous inner circumferential segments, said method comprising the steps of: I. providing transverse fold lines along a strip wherein the distance between a reference fold line and the first fold line corresponds to the length of the first spirated segment wherein the distance between the first fold line and the second fold line corresponds to the length of the outer circumferential segment, wherein the distance between the third fold line and the fourth fold line corresponds to the length of the second spirated segment, wherein the distance between the third fold line and the fourth fold line corresponds to the length of the inner circumferential segment, II. curving the first and second spirated segments in opposite directions wherein the first spirated segment is curved outwardly in a direction opposite to the side of the strip containing the first and second fold lines, wherein the second spirated segment is curved outwardly a direction the same as the side of the strip containing the first and second fold lines, III. folding the first and second lines such that the curves of the first and second spirated segments lie approximately parallel to one another, IV. folding the third and fourth fold lines in a direction opposite to that of the first and second fold lines, V. forming the folded members into a circle by contacting the first and second spirated segments with each other in the vicinity of their contiguous inner circumferential segments.
Claim 29
Dependent Claim 371 words
wherein the second spirated segment lies between the chord and the radius, D. an inner circumferential segment attached to the second spirated segment along their common fold line, said inner circumferential segment maintaining a separation between the second spirated segment of one member and the first spirated segment of the next adjacent member, wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, wherein the outer walls of the outer circumferential segments of the members describe an interrupted cylindrical surface comprising the outer periphery of the cartridge, wherein the inner circumferential segments describe a circle, wherein adjacent walls of first and second spirated segments contact each other in the vicinity of their contiguous inner circumferential segments, said method comprising the steps of: I. providing transverse fold lines along a strip wherein the distance between a reference fold line and the first fold line corresponds to the length of the first spirated segment wherein the distance between the first fold line and the second fold line corresponds to the length of the outer circumferential segment, wherein the distance between the third fold line and the fourth fold line corresponds to the length of the second spirated segment, wherein the distance between the third fold line and the fourth fold line corresponds to the length of the inner circumferential segment, II. curving the first and second spirated segments in opposite directions wherein the first spirated segment is curved outwardly in a direction opposite to the side of the strip containing the first and second fold lines, wherein the second spirated segment is curved outwardly a direction the same as the side of the strip containing the first and second fold lines, III. folding the first and second lines such that the curves of the first and second spirated segments lie approximately parallel to one another, IV. folding the third and fourth fold lines in a direction opposite to that of the first and second fold lines, V. forming the folded members into a circle by contacting the first and second spirated segments with each other in the vicinity of their contiguous inner circumferential segments.
Claim 30
Dependent Claim 28 words
The cartridge of claim 1 wherein the catalytic material is carried by the strip by having the catalytic material in the form of particles adhering to the strip.
Claim 31
Dependent Claim 17 words
The cartridge of claim 1 wherein the catalytic material is the strip itself and comprises an alloy.
Claim 32
Dependent Claim 20 words
A shell and tube heat exchanger having a plurality of the catalytic cartridges of claim 1 in the tubes thereof.
Claim 33
Dependent Claim 40 words
A catalytic cartridge formed of a metal strip folded alternately in opposite directions along fold lines perpendicular to the running length of the strip such that the strip comprises a plurality of members each comprising: A. a first spirated segment
Claim 34
Dependent Claim 40 words
A catalytic cartridge formed of a metal strip folded alternately in opposite directions along fold lines perpendicular to the running length of the strip such that the strip comprises a plurality of members each comprising: A. a first spirated segment
Claim 35
Independent Claim 151 words
A method for producing a catalytic cartridge formed of a metal strip folded alternately in opposite directions such that the strip comprises a plurality of members each comprising: A. a first spirated segment; B. an outer circumferential segment attached to the first spirated segment; C. a second spirated segment attached to the outer circumferential segment; D. an inner circumferential segment attached to the second spirated segment; wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, said method comprising the steps of: I. providing the strip with transverse fold lines, the distance between the fold lines corresponding to the segments, II. curving those segments of the strip corresponding to the first and second spirated segments, III. folding the strip along its fold lines, IV. forming the inner circumferential segments into a circle.
Claim 36
Independent Claim 151 words
A method for producing a catalytic cartridge formed of a metal strip folded alternately in opposite directions such that the strip comprises a plurality of members each comprising: A. a first spirated segment; B. an outer circumferential segment attached to the first spirated segment; C. a second spirated segment attached to the outer circumferential segment; D. an inner circumferential segment attached to the second spirated segment; wherein the inner circumferential segment of any given member is attached to the first spirated segment of the next member, wherein a catalytic material is carried by the strip, said method comprising the steps of: I. providing the strip with transverse fold lines, the distance between the fold lines corresponding to the segments, II. curving those segments of the strip corresponding to the first and second spirated segments, III. folding the strip along its fold lines, IV. forming the inner circumferential segments into a circle.
Claim 37
Independent Claim 43 words
A method for producing a catalytic cartridge formed of a metal strip alternately in opposite directions along fold lines perpendicular to the running length of the strip such that the strip comprises a plurality of members each comprising: A. a first spirated segment
Claim 38
Independent Claim 43 words
A method for producing a catalytic cartridge formed of a metal strip alternately in opposite directions along fold lines perpendicular to the running length of the strip such that the strip comprises a plurality of members each comprising: A. a first spirated segment

References Cited (Backward Citations)

US2526657A Cited
US2611585A Cited
US2756032A Cited
US2778610A Cited
US2887456A Cited
US3197975A Cited
US3652317A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-06-16 1978-12-16 1979-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-06-16 1982-12-16 1983-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-06-16 1986-12-16 1987-06-17 $7700.00 Window Closed / Lapsed

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