US4072471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic converter for removing noxious components from a gaseous stream
Assignee: Mobil Oil AS
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Filing: 1974-05-28
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Granted: 1978-02-07
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Expires: 1994-05-28
Abstract
Abstract A catalytic converter for use in a gaseous stream comprises cylindrical segments of monolithic ceramic impregnated with catalytically active materials, such as hydrocarbon and carbon monoxide conversion catalysts, axially spaced apart by greater than 1/4 inch within a cylindrical metal container, said container having a gas inlet upstream from said spaced apart segments and a gas outlet downstream therefrom and a plurality of spaced apart protruding fins attached to the outer circumference thereof.
Inventors
- 👤 Charles R. Morgan, Jr.
- 👤 Paul W. Snyder, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:43
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2825; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F01N13/00; F01N13/009; F01N13/0097; F01N3/2839; F01N3/2842; F01N3/2892; F01N2260/00; F01N2260/02; F01N2260/022; F01N2330/00; F01N2330/06; F01N2510/00; F01N2510/06; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
In a catalytic converter for use in a gaseous stream which comprises cylindrical segments of monolithic ceramic impregnated with one or more catalytically active materials, said segments of ceramic being contained in a cylindrical metal container having a gas inlet upstream from said segments and a gas outlet downstream therefrom and a plurality of spaced apart protruding metal fins attached to the outer circumference thereof, the improvement which comprises having said segments to monlithic ceramic axially spaced apart by about two inches within said metal container.
Claim 2
Dependent Claim
86 words
In a catalytic converter for use in a gaseous stream which comprises cylindrical segments of monolithic ceramic impregnated with one or more catalytically active materials, said segments of ceramic being contained in a cylindrical metal container having a gas inlet upstream from said segments and a gas outlet downstream therefrom and a plurality of spaced apart protruding metal fins attached to the outer circumference thereof, the improvement which comprises having said segments to monlithic ceramic axially spaced apart by about two inches within said metal container.
Claim 3
Dependent Claim
11 words
The improvement of claim 1 wherein said segments are right cylinders.
Claim 4
Dependent Claim
17 words
The improvement of claim 2 wherein said segments are composed of alumina, mullite, cordierite or combinations thereof.
Claim 5
Dependent Claim
34 words
The improvement of claim 3 wherein said segments are impregnated with a catalytic material selected from the group consisting of copper, copper oxide, copper chromite, platinum, palladium, rare earth metal, iron, manganese and zinc.
Claim 6
Dependent Claim
11 words
The improvement of claim 1 wherein said segments are elliptic cylinders.
Claim 7
Dependent Claim
17 words
The improvement of claim 5 wherein said segments are composed of alumina, mullite, cordierite or combinations thereof.
Claim 8
Dependent Claim
34 words
The improvement of claim 6 wherein said segments are impregnated with a catalytic material selected form the group consisting of copper, copper oxide, copper chromite, platinum, palladium, rare earth metal, iron, manganese and zinc.
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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) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |