US3950139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic converter having catalyst reservoir means
Assignee: Motors Liquidation Co
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Filing: 1974-08-23
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Granted: 1976-04-13
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Expires: 1994-08-23
Abstract
Abstract In an internal combustion engine exhaust system, a catalytic converter mounted on the exhaust manifold has a cylindrical catalyst bed which is disposed on a substantially vertical axis. The exhaust gases flow downwardly into and through a louvered inner tube and then radially through the bed. A frusto-conical baffle is supported from the inner tube and extends outwardly and downwardly into the bed to separate an upper catalyst reservoir portion of the bed from a lower gas flow portion of the bed. During thermal expansion of the bed or upon attrition of the catalyst in the gas flow portion, catalyst beads are discharged from the reservoir portion around the conical baffle and into the gas flow portion.
Inventors
- 👤 Earl R. Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N13/10; B; B01; B01J; B01J8/00; B01J8/008; B01J8/02; B01J8/0207; B01J8/0214; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2846; B01J2208/00; B01J2208/00796; B01J2208/00823; B01J2208/00831; B01J2208/0084
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
A catalytic converter for use in an internal combustion engine exhaust system, said catalytic converter comprising a vertically disposed inner tube having an upper end for receiving exhaust gases, an outer tube disposed about said inner tube and defining a catalyst bed therebetween, said inner and outer tubes having louvers formed therein permitting flow of exhaust gases substantially radially outwardly through said catalyst bed, said catalyst bed containing a plurality of catalyst beads adapted to promote an oxidizing or reducing reaction within said exhaust gases, and a substantially frusto-conical reservoir plate secured to said inner tube and extending radially outwardly and downwardly from a location thereon above said louvers therein, said reservoir plate having an outer rim spaced inwardly from said outer tube and located above the louvers of said outer tube, said reservoir plate thereby separating said bed into a reservoir portion thereabove and a gaseous flow portion therebelow and providing a restricted annular opening from said reservoir portion into said gaseous flow portion through which said beads may enter and leave said gaseous flow portion during thermal expansion and contraction of said catalytic converter.
Claim 2
Dependent Claim
186 words
A catalytic converter for use in an internal combustion engine exhaust system, said catalytic converter comprising a vertically disposed inner tube having an upper end for receiving exhaust gases, an outer tube disposed about said inner tube and defining a catalyst bed therebetween, said inner and outer tubes having louvers formed therein permitting flow of exhaust gases substantially radially outwardly through said catalyst bed, said catalyst bed containing a plurality of catalyst beads adapted to promote an oxidizing or reducing reaction within said exhaust gases, and a substantially frusto-conical reservoir plate secured to said inner tube and extending radially outwardly and downwardly from a location thereon above said louvers therein, said reservoir plate having an outer rim spaced inwardly from said outer tube and located above the louvers of said outer tube, said reservoir plate thereby separating said bed into a reservoir portion thereabove and a gaseous flow portion therebelow and providing a restricted annular opening from said reservoir portion into said gaseous flow portion through which said beads may enter and leave said gaseous flow portion during thermal expansion and contraction of said catalytic converter.
Claim 3
Dependent Claim
178 words
A catalytic converter for use in an internal combustion engine exhaust system, said catalytic converter comprising a vertically disposed inner tube having an upper end for receiving exhaust gases, an outer tube disposed about said inner tube and defining a catalyst bed therebetween, said inner and outer tubes having louvers formed therein permitting flow of exhaust gases substantially radially outwardly through said catalyst bed, said catalyst bed containing a plurality of catalyst beads adapted to promote an oxidizing or reducing reaction within said exhaust gases, and an imperforate substantially frusto-conical reservoir plate secured to said inner tube and extending radially outwardly and downwardly from a location thereon above said louvers therein, said reservoir plate having an outer rim spaced inwardly from said outer tube, said reservoir plate thereby separating said bed into a reservoir portion thereabove and a gaseous flow portion therebelow and providing a restricted annular opening from said reservoir portion into said gaseous flow portion through which said beads may enter and leave said gaseous flow portion during thermal expansion and contraction of said catalytic converter.
Claim 4
Dependent Claim
178 words
A catalytic converter for use in an internal combustion engine exhaust system, said catalytic converter comprising a vertically disposed inner tube having an upper end for receiving exhaust gases, an outer tube disposed about said inner tube and defining a catalyst bed therebetween, said inner and outer tubes having louvers formed therein permitting flow of exhaust gases substantially radially outwardly through said catalyst bed, said catalyst bed containing a plurality of catalyst beads adapted to promote an oxidizing or reducing reaction within said exhaust gases, and an imperforate substantially frusto-conical reservoir plate secured to said inner tube and extending radially outwardly and downwardly from a location thereon above said louvers therein, said reservoir plate having an outer rim spaced inwardly from said outer tube, said reservoir plate thereby separating said bed into a reservoir portion thereabove and a gaseous flow portion therebelow and providing a restricted annular opening from said reservoir portion into said gaseous flow portion through which said beads may enter and leave said gaseous flow portion during thermal expansion and contraction of said catalytic converter.
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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |