US3397682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for exhaust gas separation
Assignee: HOMER D RIGGAN
•
Filing: 1966-11-25
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Granted: 1968-08-20
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Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 Homer D Riggan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:09
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/037; F01N1/00; F01N1/08; F01N3/04; F01N2230/00; F01N2240/00; F01N2240/06; F01N2240/22; F01N2470/00; F01N2470/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/28; Y10S55/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN AN EXHAUST SYSTEM FOR INTERNAL COMUSTION ENGINES WHICH INCLUDES A FUEL INPUT SYSTEM, AN EXHAUST MANIFOLD, A FIRST EXHAUST PIPE CONNECTED THERETO, CYCLONE, MEANS CONNECTED TO SAID FIRST EXHAUST PIPE, A MUFFLER SYSTEM, SECOND EXHAUST PIPE MEANS CONNECTING SAID CYCLONE, MEANS AND SAID MUFFLER SYSTEM, AND AN INPUT CONDUIT CONNECTED FROM THE CYCLONE MEANS TO THE FUEL INPUT SYSTEM OF THE INTERNAL COMBUSTION ENGINE, SAID CYCLONE MEANS COMPRISING: A CYCLINDER HAVING AN OPENING TANGENTIAL TO THE CYLINDER INNER WALL AND CONNECTED TO RECEIVE EXHAUST GASES THEREIN FROM SAID FIRST EXHAUST PIPE, SAID CYLINDER HAVING AN OUTLET OPENING ALONG ITS CENTRAL AXIS WHICH IS CONNECTED TO SAID SECOND EXHAUST PIPE, AND A PORTION OF THE CYLINDER WALL BEING FORAMINUOUS TO ALLOW THE PASSAGE OF HEAVIER COMPONENTS OF EXHAUST GAS THERETHROUGH;
Claim 2
Dependent Claim
130 words
IN AN EXHAUST SYSTEM FOR INTERNAL COMUSTION ENGINES WHICH INCLUDES A FUEL INPUT SYSTEM, AN EXHAUST MANIFOLD, A FIRST EXHAUST PIPE CONNECTED THERETO, CYCLONE, MEANS CONNECTED TO SAID FIRST EXHAUST PIPE, A MUFFLER SYSTEM, SECOND EXHAUST PIPE MEANS CONNECTING SAID CYCLONE, MEANS AND SAID MUFFLER SYSTEM, AND AN INPUT CONDUIT CONNECTED FROM THE CYCLONE MEANS TO THE FUEL INPUT SYSTEM OF THE INTERNAL COMBUSTION ENGINE, SAID CYCLONE MEANS COMPRISING: A CYCLINDER HAVING AN OPENING TANGENTIAL TO THE CYLINDER INNER WALL AND CONNECTED TO RECEIVE EXHAUST GASES THEREIN FROM SAID FIRST EXHAUST PIPE, SAID CYLINDER HAVING AN OUTLET OPENING ALONG ITS CENTRAL AXIS WHICH IS CONNECTED TO SAID SECOND EXHAUST PIPE, AND A PORTION OF THE CYLINDER WALL BEING FORAMINUOUS TO ALLOW THE PASSAGE OF HEAVIER COMPONENTS OF EXHAUST GAS THERETHROUGH;
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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |