Patent US2759941A successfully refreshed from Google Patents.
Patent US3615255A successfully refreshed from Google Patents.
US3615255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic converter
Assignee: Motors Liquidation Co
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Filing: 1970-05-19
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Granted: 1971-10-26
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Expires: 1990-05-19
Abstract
Abstract A catalytic converter having an outer cylindrical housing and an inner cylindrical element adapted to receive in spaced relationship thereto a flat cylindrical catalyst element and having three distinct manifold portions: an annular portion between the housing and the element, an inner portion above the catalyst element and a lower portion below and surrounding the catalyst element. The annular portion communicates with the inner portion through a plurality of holes in the inner element and the inner portion communicates with the lower portion through the catalyst element whereby exhaust gases entering the annular portion are distributed around and radially into the inner portion and then flow uniformly downwardly through the catalyst element and into the lower portion to be discharged from the converter.
Inventors
- 👤 Lester E Patterson
- 👤 William L Alley
- 👤 Michael R Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:02
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2892; F01N3/2839; F01N3/2846; F01N2240/00; F01N2240/02; F01N2260/00; F01N2260/16; F01N2310/00; F01N2310/02; F01N2330/00; F01N2330/08; F01N2450/00; F01N2450/30; F01N2470/00; F01N2470/18; F01N2490/00; F01N2490/16; F01N2530/00; F01N2530/02; F01N2530/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
An exhaust gas catalytic converter comprising, in combination, a housing comprising a cylindrical portion, radially extending inlet and outlet conduits, a top cover portion and a bottom cover portion, a flat, cylindrical catalyst element having perforated top and bottom plates and having a horizontally disposed catalyst bed therebetween mounted in said housing, means adapted to provide a seal between said catalyst element and said cylindrical portion, an annular baffle within said housing extending between said cylindrical portion and said top cover portion defining with said element an inlet manifold having an outer annular portion communicating with said inlet conduit and an inner portion, said seal means, said cylindrical portion, said element and said bottom cover portion defining an outlet manifold communicating with said outlet conduit, said outer annular portion communicating with said inner portion through a plurality of holes in said baffle whereby exhaust gases entering said outer annular portion are evenly distributed into said inner portion through said holes and wherebY the flow of exhaust gases from said portion downwardly through said bed and into said outlet manifold is substantially uniform.
Claim 2
Dependent Claim
346 words
A catalytic converter for treatment of exhaust gases of an internal combustion engine to remove the noxious constituents thereof comprising, in combination, an outer housing comprising a cylindrical portion, a radially extending inlet conduit for feeding exhaust gases into said converter, a radially extending outlet conduit for discharging the treated exhaust gases from said converter, a top cover portion and a bottom cover portion, an inner element comprising a cylindrical portion attached to said cylindrical portion of said outer housing through a radially extending portion of said element, a conical baffle portion attached to said top cover portion, and a horizontally disposed flange portion connecting said baffle portion to said cylindrical portion of said element, said baffle portion having a plurality of holes therethrough, said inner element being adapted to receive in spaced relationship to said cylindrical portion thereof a flat, cylindrical catalyst element having perforated top and bottom plates and a horizontally disposed catalyst bed therebetween, annular sealing means adapted to provide a seal between said catalyst element and said inner element at said horizontal flange portion and fastening means located substantially centrally of said housing extending between said covers substantially centrally of said element adapted to tightly engage said element against said seal, said cylindrical portion of said element being spaced apart from said cylindrical portion of said thereby defining an annular manifold communicating with said inlet conduit, said top plate of said element being spaced apart from said top cover portion of said housing thereby defining an inner manifold interiorly of said conical baffle portion, and said inner element and said catalyst element being spaced apart from said bottom cover portion, thereby defining an outlet manifold extending to said sealing means and communicating with said outlet conduit, said annular manifold communicating with said inner manifold through said holes in said baffle whereby exhaust gases entering said annular manifold are evenly distributed across said element top plate in said inner manifold whereby the flow of exhaust gases from said inner manifold downwardly through said catalyst bed and into said outlet manifold is substantially uniform.
References Cited (Backward Citations)
US3054664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |