US4023361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for controlling poisonous exhaust gas
Assignee: Individual
•
Filing: 1974-08-02
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Granted: 1977-05-17
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Expires: 1994-08-02
Abstract
Abstract A catalytic converter for treating poisonous exhaust gases from an engine consisting essentially of highly purified copper. The catalytic converter is produced as an elongated, generally cylindrical body having a helically threaded outer surface and is mounted between a cylinder head and a manifold.
Inventors
- 👤 Toshihiko Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:37
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N13/10; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9445; B01D53/9454; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
139 words
A catalytic converting device comprising a body block adapted to be inserted between an engine block and the intake and exhaust manifolds which are normally directly attached to said engine block, said body block having at least one opening extending therethrough in alignment with corresponding passageways in said engine and manifold respectively to permit normal passage of engine gas therethrough, and at least one threaded metal cylinder passing through said body block opening in a direction transverse to the direction of gas flow through said block opening, said metal cylinder being threadedly secured to said body block and in heat conducting relation to both intake and exhaust gases passing between said manifolds and said engine block, said metal cylinder having the surface thereof exposed to said engine gases composed of a catalytic material consisting essentially of highly purified copper.
Claim 2
Dependent Claim
139 words
A catalytic converting device comprising a body block adapted to be inserted between an engine block and the intake and exhaust manifolds which are normally directly attached to said engine block, said body block having at least one opening extending therethrough in alignment with corresponding passageways in said engine and manifold respectively to permit normal passage of engine gas therethrough, and at least one threaded metal cylinder passing through said body block opening in a direction transverse to the direction of gas flow through said block opening, said metal cylinder being threadedly secured to said body block and in heat conducting relation to both intake and exhaust gases passing between said manifolds and said engine block, said metal cylinder having the surface thereof exposed to said engine gases composed of a catalytic material consisting essentially of highly purified copper.
Claim 3
Dependent Claim
51 words
A catalytic converting device according to claim 1 in which said body block has at least two openings, one aligned with an intake manifold and the other aligned with an exhaust manifold, and each opening is provided with a threaded metal cylinder in heat conducting relation to the other metal cylinder.
Claim 4
Dependent Claim
31 words
A catalytic converting device according to claim 2 in which the same threaded metal cylinder extends through two adjacent gas openings, one for intake gas and the other for exhaust gas.
Claim 5
Dependent Claim
27 words
A catalytic converting device according to claim 3 in which there are two parallel metal cylinders extending across adjacent intake and exhaust openings in said body block.
References Cited (Backward Citations)
US2899949A
Cited
US1815178A
Cited
US2263318A
Cited
US3017255A
Cited
GB965454A
Cited
US3354635A
Cited
US3613359A
Cited
JPS4723617U
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |