Patent US4065268A successfully refreshed from Google Patents.
US4065268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-uniform crimped metal ribbon packed catalyst bed and method using same
Assignee: Individual
•
Filing: 1975-09-15
•
Granted: 1977-12-27
•
Expires: 1995-09-15
Abstract
Abstract A catalyst bed packed with metal ribbon strands having a number of different crimped configurations. Also a method of converting hydrocarbon waste gas streams which utilizes the multi-configurated packed catalyst bed.
Inventors
- 👤 Erwin C. Betz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:38
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/72; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2832; F01N3/2839; F01N3/2846; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30276; B01J2219/304; B01J2219/30408; B01J35/00; B01J35/30; B01J35/391; B01J35/395; Y; Y10; Y10S; Y10S261/00; Y10S261/72; Y10T; Y10T428/00; Y10T428/12; Y10T428/12354; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12875
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
23 words
A catalyst bed packed with catalytically active crimped metal ribbon wherein a substantial proportion of at least two different crimp configurations are present.
Claim 2
Dependent Claim
23 words
A catalyst bed packed with catalytically active crimped metal ribbon wherein a substantial proportion of at least two different crimp configurations are present.
Claim 3
Dependent Claim
16 words
The catalyst bed of claim 1, wherein three different crimp configurations are present in the bed.
Claim 4
Dependent Claim
19 words
The catalyst bed of claim 1, wherein a plurality of crimped metal ribbon strands are present in the bed.
Claim 5
Dependent Claim
18 words
The catalyst bed of claim 3, wherein the number of strands of each crimp configuration is approximately equal.
Claim 6
Dependent Claim
27 words
The catalyst bed of claim 1, wherein the metal ribbon is an alloy of nickel, chromium and iron, aluminum, chromium and iron, or chromium, silicon and iron.
Claim 7
Dependent Claim
18 words
The catalyst bed of claim 1, wherein the catalytically active metal is a mixture of platinum and palladium.
Claim 8
Dependent Claim
17 words
The catalyst bed of claim 1, wherein at least a portion of the metal ribbon is perforated.
Claim 9
Dependent Claim
42 words
A catalyst bed packed with a plurality of catalytically active crimped metal ribbon strands from about 1/16 inch to 1/4 inch in width and from about 0.005 to 0.01 in. thick wherein a substantial portion of two different crimp configurations are present.
Claim 10
Dependent Claim
42 words
A catalyst bed packed with a plurality of catalytically active crimped metal ribbon strands from about 1/16 inch to 1/4 inch in width and from about 0.005 to 0.01 in. thick wherein a substantial portion of two different crimp configurations are present.
Claim 11
Dependent Claim
16 words
The catalyst bed of claim 8, wherein three different crimp configurations are present in the bed.
Claim 12
Dependent Claim
44 words
The catalyst bed of claim 8, wherein the metal ribbon is an alloy of nickel, chromium and iron, aluminum, chromium and iron, or chromium, silicon and iron and wherein the surfaces of the metal ribbon are coated with a mixture of platinum and palladium.
Claim 13
Dependent Claim
23 words
The catalyst bed of claim 8, wherein the metal ribbon strands are perforated with perforations of from 1 to 5 mm in diameter.
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) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |