US4775518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas catalytic converter arrangement
Assignee: Daimler Benz AG
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Filing: 1986-07-11
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Granted: 1988-10-04
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Expires: 2006-07-11
Abstract
Abstract A monolithic exhaust gas catalyst, or catalytic converter, is arranged in a metallic housing and is supported against the inner surfaces of the housing by a resilient fiber material positioned therebetween. The resilient fiber material is provided with a catalytically active coating so that the exhaust gases which flow outside the exhaust gas catalyst and through the fiber material, are also converted by the treated fiber material.
Inventors
- 👤 Jorg Abthoff
- 👤 Hans-Dieter Schuster
- 👤 Hans-Joachim Langer
- 👤 Klaus B. Kubatschka
- 👤 Gunther Ebinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:13
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9445; B01D53/9454; B01D53/74; B01D53/86; B01J; B01J35/00; B01J35/50; B01J35/58; F; F01; F01N; F01N13/00; F01N13/009; F01N13/0097; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2853; F01N3/2864; F01N3/2867; F01N13/14; F01N2350/00; F01N2350/02; F01N2350/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
72 words
An exhaust gas catalytic converter arrangement comprising: housing means; monolithic gas catalyst means, resilient fiber means interposed in an intermediate space between the housing means and the monolithic gas catalyst means for resiliently sealing and supporting the monolithic gas catalyst means in the housing means in an exhaust gas flow path, and catalytically active coating means on the resilient fiber means for catalytically treating exhaust gases which leak into the intermediate space.
Claim 2
Dependent Claim
72 words
An exhaust gas catalytic converter arrangement comprising: housing means; monolithic gas catalyst means, resilient fiber means interposed in an intermediate space between the housing means and the monolithic gas catalyst means for resiliently sealing and supporting the monolithic gas catalyst means in the housing means in an exhaust gas flow path, and catalytically active coating means on the resilient fiber means for catalytically treating exhaust gases which leak into the intermediate space.
Claim 3
Dependent Claim
16 words
A catalytic converter arrangement according to claim 1, wherein said housing means is a metallic housing.
Claim 4
Dependent Claim
27 words
A catalytic converter arrangement according to claim 1, wherein the catalytically active coating means is a platinum coating comprising 1 to 2 percent strength platinum chloride solution.
Claim 5
Dependent Claim
15 words
A catalytic converter arrangement according to claim 1, wherein a thermal insulation surrounds the housing.
Claim 6
Dependent Claim
16 words
A catalytic converter arrangement according to claim 4, wherein a metal shell surrounds the thermal insulation.
Claim 7
Dependent Claim
27 words
A catalytic converter arrangement according to claim 5, wherein the catalytically active coating means is a platinum coating comprising 1 to 2 percent strength platinum chloride solution.
References Cited (Backward Citations)
US3189653A
Cited
US3817716A
Cited
US4350664A
Cited
US3961907A
Cited
US3966443A
Cited
US4279864A
Cited
US4269807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |