Patent US3253401A successfully refreshed from Google Patents.
US3253401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust aid device
Assignee: Individual
•
Filing: 1964-06-08
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Granted: 1966-05-31
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Wells Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AN AIR INJECTOR FOR AN INTERNAL COMBUSTION ENGINE EXHAUST MANIFOLD, SAID INJECTOR COMPRISING A TUBE HAVING ITS OPPOSITE ENDS THREADED, IN COMBINATION WITH A SERIES OF BAFFLE PLATES DISPOSED IN SPACED RELATION IN SAID TUBE, EACH OF SAID PLATES IN A PLANE EXTENDING SUBSTANTIALLY DIAMETRICALLY OF SAID TUBE AND EACH OF SAID PLATES HAVING AN APERTURE DISPOSED ON A SIDE OF THE AXIS OF SAID TUBE OPPOSITE THAT OF THE APERTURE IN AN ADJACENT BAFFLE PLATE, EACH BAFFLE PLATE SPACED FROM AN ADJACENT BAFFLE PLATE TO PROVIDE AN AIR TURBULATING SPACE.
Claim 2
Dependent Claim
91 words
AN AIR INJECTOR FOR AN INTERNAL COMBUSTION ENGINE EXHAUST MANIFOLD, SAID INJECTOR COMPRISING A TUBE HAVING ITS OPPOSITE ENDS THREADED, IN COMBINATION WITH A SERIES OF BAFFLE PLATES DISPOSED IN SPACED RELATION IN SAID TUBE, EACH OF SAID PLATES IN A PLANE EXTENDING SUBSTANTIALLY DIAMETRICALLY OF SAID TUBE AND EACH OF SAID PLATES HAVING AN APERTURE DISPOSED ON A SIDE OF THE AXIS OF SAID TUBE OPPOSITE THAT OF THE APERTURE IN AN ADJACENT BAFFLE PLATE, EACH BAFFLE PLATE SPACED FROM AN ADJACENT BAFFLE PLATE TO PROVIDE AN AIR TURBULATING SPACE.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |