US4777158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the selective brazing of a metallic catalyst carrier body and a correspondingly produced catalyst carrier body
Assignee: INTERATOM BERGISCH GLADBACH GERMANY A GERMAN CORP GmbH
•
Filing: 1986-08-18
•
Granted: 1988-10-11
•
Expires: 2006-08-18
Abstract
Abstract A method for selectively applying brazing to a catalyst carrier body includes alternately winding smooth and wavy layers of sheet metal into a catalyst carrier body having outer surfaces, dividing at least one of the outer surfaces into regions to be brazed covering a portion of the at least one outer surface as seen in circumferential and radial directions, and applying brazing to the regions and a catalyst carrier assembly for carrying out the method.
Inventors
- 👤 Theodor Cyron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:06
CPC Classifications
B; B01; B01J; B01J37/00; B23; B23K; B23K1/00; B23K1/20; B01J35/00; B01J35/50; B01J35/56; B23K1/0008; B23K1/0014; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2807; F01N3/281; F01N2330/00; F01N2330/02; F01N2330/04; F01N2330/30; F01N2330/44
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
88 words
Catalyst carrier assembly, comprising a catalyst carrier body formed of alternately wound smooth and wavy layers of sheet metal dividing said catalyst carrier body into cells with given dimensions including a greatest dimension, said catalyst carrier body having outer surfaces, regions to be brazed covering a portion of at least one of said outer surfaces as seen in circumferential and radial directions, each of said regions to be brazed having dimensions all being greater than said greatest dimension of said cells, and brazing material disposed on said regions.
Claim 2
Dependent Claim
88 words
Catalyst carrier assembly, comprising a catalyst carrier body formed of alternately wound smooth and wavy layers of sheet metal dividing said catalyst carrier body into cells with given dimensions including a greatest dimension, said catalyst carrier body having outer surfaces, regions to be brazed covering a portion of at least one of said outer surfaces as seen in circumferential and radial directions, each of said regions to be brazed having dimensions all being greater than said greatest dimension of said cells, and brazing material disposed on said regions.
Claim 3
Dependent Claim
12 words
Catalyst carrier assembly according to claim 1, wherein said regions are continuous.
Claim 4
Dependent Claim
26 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed have a smallest dimension being greater than said greatest dimension of said cells.
Claim 5
Dependent Claim
17 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed form a regular pattern.
Claim 6
Dependent Claim
17 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed form an irregular pattern.
Claim 7
Dependent Claim
20 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed are in the form of spiral arms.
Claim 8
Dependent Claim
31 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed are in the form of spiral arms interconnected in the middle of the at least one outer surface.
Claim 9
Dependent Claim
32 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed are in the form of spiral arms being wider at the periphery of the at least one outer surface.
Claim 10
Dependent Claim
32 words
Catalyst carrier assembly according to claim 1, including a material from the group consisting of adhesive, contact adhesive and bonding material disposed on said regions to be brazed, below said brazing material.
Claim 11
Dependent Claim
35 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed are wider as seen in the radial direction than as seen in the circumferential direction of said at least one outer surface.
Claim 12
Dependent Claim
33 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed are mutually offset in at least one of the circumferential and radial directions of said at least one outer surface.
Claim 13
Dependent Claim
24 words
Catalyst carrier assembly according to claim 1, wherein said regions to be brazed cover less than half of said at least one outer surface.
Claim 14
Dependent Claim
46 words
Catalyst carrier assembly according to claim 1, wherein each of said regions to be brazed covers less than an entire radius of said outer surfaces and each of said regions to be brazed covers less than a closed loop in circumferential direction of said outer surfaces.
Claim 15
Dependent Claim
77 words
Catalyst carrier assembly, comprising a catalyst carrier body formed of alternately wound smooth and wavy layers of sheet metal dividing said catalyst carrier body into cells with given dimensions including a greatest dimension, said catalyst carrier body having outer surfaces, brazed regions covering a portion of at least one of said outer surfaces as seen in circumferential and radial directions, each of said brazed regions having dimensions all being greater than said greater dimension of said cells.
Claim 16
Dependent Claim
77 words
Catalyst carrier assembly, comprising a catalyst carrier body formed of alternately wound smooth and wavy layers of sheet metal dividing said catalyst carrier body into cells with given dimensions including a greatest dimension, said catalyst carrier body having outer surfaces, brazed regions covering a portion of at least one of said outer surfaces as seen in circumferential and radial directions, each of said brazed regions having dimensions all being greater than said greater dimension of said cells.
Claim 17
Dependent Claim
13 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions are continuous.
Claim 18
Dependent Claim
24 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions have a smallest dimension being greater than said greatest dimension of said cells.
Claim 19
Dependent Claim
15 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions form a regular pattern.
Claim 20
Dependent Claim
15 words
Catalyst carrrier assembly according to claim 14, wherein said brazed regions form an irregular pattern.
Claim 21
Dependent Claim
18 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions are in the form of spiral arms.
Claim 22
Dependent Claim
29 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions are in the form of spiral arms interconnected in the middle of the at least one outer surface.
Claim 23
Dependent Claim
30 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions are in the form of spiral arms being wider at the periphery of the at least one outer surface.
Claim 24
Dependent Claim
33 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions are wider as seen in the radial direction than as seen in the circumferential direction of said at least one outer surface.
Claim 25
Dependent Claim
31 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions are mutually offset in at least one of the circumferential and radial directions of said at least one outer surface.
Claim 26
Dependent Claim
22 words
Catalyst carrier assembly according to claim 14, wherein said brazed regions cover less than half of said at least one outer surface.
Claim 27
Dependent Claim
42 words
Catalyst carrier assembly according to claim 14, wherein each of said brazed regions covers less than an entire radius of said outer surfaces and each of said brazed regions covers less than a closed loop in circumferential direction of said outer surfaces.
Claim 28
Dependent Claim
33 words
Catalyst carrier assembly according to claim 14, including brazing material, and a material from the group consisting of adhesive, contact adhesive and bonding material disposed on said brazed regions below said brazing material
References Cited (Backward Citations)
US3208131A
Cited
DE2727967A1
Cited
GB2069364A
Cited
US4300956A
Cited
EP0121174A1
Cited
DE3312944A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |