US3107484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reducing air pollution
Assignee: Individual
•
Filing: 1963-02-11
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Granted: 1963-10-22
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Edward A Touhey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:36
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; Y; Y10; Y10S; Y10S60/00; Y10S60/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ENGINE EXHAUST DEVICE, COMPRISING AN ELONGATED TAIL PIPE FOR RECEIVING EXHAUST GAS FROM AN ENGINE OF A VEHICLE, A TUBULAR CASING, RADIAL MEANS SUPPORTING SAID CASING CONCENTRIC WITH SAID PIPE WITH SAID PIPE PASSING AXIALLY THROUGH SAID CASING, SAID CASING BEING HORIZONTALLY DISPOSED FOR PASSING FRESH AIR THERETHROGH FROM ONE END TO THE OTHER WHEN MOVED AXIALLY BY SAID VEHICLE, SAID PIPE HAVING LONGITUDINALLY SPACED OPENINGS THEREIN, AND A PLURALITY OF FINS AT SAID OPENINGS RESPECTIVELY EXTENDING INWARDLY OF SAID PIPE AT AN ANGLE TO THE AXIS THEREOF SO THAT EXHAUST GAS IS GUIDED BY SAID FINS AND PASSES OUT THROUGH SAID OPENINGS INTO SAID CASING TO MIX WITH FRESH AIR PASSING THROUGH THE CASING.
Claim 2
Dependent Claim
116 words
AN ENGINE EXHAUST DEVICE, COMPRISING AN ELONGATED TAIL PIPE FOR RECEIVING EXHAUST GAS FROM AN ENGINE OF A VEHICLE, A TUBULAR CASING, RADIAL MEANS SUPPORTING SAID CASING CONCENTRIC WITH SAID PIPE WITH SAID PIPE PASSING AXIALLY THROUGH SAID CASING, SAID CASING BEING HORIZONTALLY DISPOSED FOR PASSING FRESH AIR THERETHROGH FROM ONE END TO THE OTHER WHEN MOVED AXIALLY BY SAID VEHICLE, SAID PIPE HAVING LONGITUDINALLY SPACED OPENINGS THEREIN, AND A PLURALITY OF FINS AT SAID OPENINGS RESPECTIVELY EXTENDING INWARDLY OF SAID PIPE AT AN ANGLE TO THE AXIS THEREOF SO THAT EXHAUST GAS IS GUIDED BY SAID FINS AND PASSES OUT THROUGH SAID OPENINGS INTO SAID CASING TO MIX WITH FRESH AIR PASSING THROUGH THE CASING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |