Patent US3595015A successfully refreshed from Google Patents.
US3595015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas treatment means
Assignee: BARRETT HOWELL W
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Filing: 1970-02-18
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Granted: 1971-07-27
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Expires: 1990-02-18
Abstract
Abstract A method and apparatus for treating exhaust gases from an internal combustion engine wherein air is mixed with the exhaust gases and the mixture is ignited. The exhaust gases are flowed in a stream through a housing, air is added to the stream to create an air-gas stream, and a portion of the air-gas stream is diverted and flowed in the opposite direction within the housing in a path surrounding the air-gas stream. The diverted portion of the air-gas stream is ignited and added back into the main airgas stream.
Inventors
- 👤 Yuma K Kretschmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:42
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; F01N3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
The invention of claim 1 and further comprising a gas dispersing baffle member positioned within said second conduit extension.
Claim 2
Dependent Claim
35 words
The invention of claim 1 and wherein said tubular housing is cylindrical and said second conduit extension is of larger diameter than said first conduit extension and surrounds a portion of said first conduit extension.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |