US3901029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold reactor
Assignee: Toyota Motor Corp
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Filing: 1973-12-19
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Granted: 1975-08-26
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Expires: 1993-12-19
Abstract
Abstract An exhaust gas purifying apparatus comprising a secondary combustion chamber composed of a combustion cylinder enclosed by heat insulating material with an air gap therebetween, said insulating material being enclosed and supported by an outer casing. In manufacturing the exhaust gas purifying apparatus, the combustion cylinder is coated with easily combustible materials, to a predetermined thickness, and subsequently disposed within the outer casing with a predetermined gap or space therebetween. Heat-insulating material in a form of sludge is poured into said gap or space and solidified. Thereafter, the combustible material is burnt away and removed.
Inventors
- 👤 Katsumi Kondo
- 👤 Fumiyoshi Noda
- 👤 Yuji Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:00
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; Y; Y10; Y10S; Y10S264/00; Y10S264/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
Method of manufacturing the apparatus for purifying exhaust gases from an internal combustion engine comprising covering to a pre-determined thickness the exterior of a combustion cylinder as well as its inlet conduits and its outlet conduit with an easily combustible material, disposing an outer casing coaxially to and at a pre-determined spacing from sAid combustion cylinder, pouring heat-insulating material in the form of sludge into the space between said casing and cylinder, and burning away and removing said easily combustible materials remaining between said heat-insulating material and said combustion cylinder after said heat-insulating material has been hardened.
Claim 2
Dependent Claim
97 words
Method of manufacturing the apparatus for purifying exhaust gases from an internal combustion engine comprising covering to a pre-determined thickness the exterior of a combustion cylinder as well as its inlet conduits and its outlet conduit with an easily combustible material, disposing an outer casing coaxially to and at a pre-determined spacing from sAid combustion cylinder, pouring heat-insulating material in the form of sludge into the space between said casing and cylinder, and burning away and removing said easily combustible materials remaining between said heat-insulating material and said combustion cylinder after said heat-insulating material has been hardened.
References Cited (Backward Citations)
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Cited
US1721442A
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US2678529A
Cited
US3418399A
Cited
US3413803A
Cited
US3768260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |