US4190559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal catalyst support having rectangular cross-section
Assignee: Oxy Catalyst Inc
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Filing: 1978-10-13
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Granted: 1980-02-26
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Expires: 1998-10-13
Abstract
Abstract A catalyst support comprises a stack of metal strips, said strips being coated with a catalyst material. Indentations in the strips maintain uniform spacing between the strips, so that gas can flow between the strips. The indentations are spaced so that the indentations in adjacent strips cannot coincide and nest together, so that adjacent strips cannot collapse together.
Inventors
- 👤 William B. Retallick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2807; F01N3/281; F01N3/2817; B; B01; B01J; B01J35/00; B01J35/50; B01J35/56; F01N2330/00; F01N2330/02; F01N2330/30; F01N2330/38; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12306; Y10T428/12313; Y10T428/12319; Y10T428/12361; Y10T428/1241
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
A metal catalyst support comprising: a. a stack of metal strips; b. said strips having indentations of uniform height, wherein the spacing between said strips is equal to said height; and c. wherein said indentations are spaced along said strips in a varying, non-repetitive pattern, wherein the indentations in adjacent strips cannot coincide and nest together.
Claim 2
Dependent Claim
56 words
A metal catalyst support comprising: a. a stack of metal strips; b. said strips having indentations of uniform height, wherein the spacing between said strips is equal to said height; and c. wherein said indentations are spaced along said strips in a varying, non-repetitive pattern, wherein the indentations in adjacent strips cannot coincide and nest together.
Claim 3
Dependent Claim
16 words
The catalyst support of claim 1, wherein said indentations have a cylindrical surface and open ends.
Claim 4
Dependent Claim
43 words
The catalyst support of claim 2, wherein said indentations are aligned perpendicular to the length of said strips and perpendicular to the face of the stack, whereby said indentations present only the edge of the indented metal to gas flowing through the stack.
Claim 5
Dependent Claim
14 words
The catalyst support of claim 3, wherein said strips are coated with a catalyst.
Claim 6
Dependent Claim
80 words
A metal catalyst support comprising: a. a stack of metal strips; b. said strips having indentations of uniform height, wherein the spacing between said strips is equal to said height; c. said indentations being arranged in rows along the length of said strips; d. said rows being spaced asymmetrically about the center line of each of said strips; and e. wherein alternate strips in said stack are rotated 180 degrees about an axis perpendicular to the plane of said strip.
Claim 7
Dependent Claim
80 words
A metal catalyst support comprising: a. a stack of metal strips; b. said strips having indentations of uniform height, wherein the spacing between said strips is equal to said height; c. said indentations being arranged in rows along the length of said strips; d. said rows being spaced asymmetrically about the center line of each of said strips; and e. wherein alternate strips in said stack are rotated 180 degrees about an axis perpendicular to the plane of said strip.
Claim 8
Dependent Claim
16 words
The catalyst support of claim 5, wherein said indentations have a cylindrical surface and open ends.
Claim 9
Dependent Claim
43 words
The catalyst support of claim 6, wherein said indentations are aligned perpendicular to the length of said strips and perpendicular to the face of said stack, whereby said indentations present only the edge of the indented metal to gas flowing through said stack.
Claim 10
Dependent Claim
14 words
The catalyst support of claim 7, wherein said strips are coated with a catalyst.
Claim 11
Dependent Claim
19 words
The catalyst support of claim 5, wherein the plane of each of said strips is perpendicular to the horizontal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |