Patent US3148951A successfully refreshed from Google Patents.
US3148951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas purifier
Assignee: Individual
•
Filing: 1962-11-16
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Granted: 1964-09-15
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Expires: 1982-11-16
Abstract
No abstract record available.
Inventors
- 👤 William E Avery
- 👤 Richard G Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:45
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2846; F01N2450/00; F01N2450/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN INTERNAL COMBUSTION ENGINE EXHAUST GAS PURIFIER COMPRISING: (A) AN ELONGATED HOLLOW CARTRIDGE, (B) SAID CARTRIDGE PROVIDED WITH END CLOSURE MEANS, (C) SAID END CLOSURE MEANS AND SAID CARTRIDGE BEING PROVIDED WITH PERFORATIONS, THE PERFORATIONS IN SAID CARTRIDGE BEING LOCATED AROUND THE PERIPHERY THEREOF, (D) A PLURALITY OF CATALYTIC PELLETS PARTIALLY FILLING SAID CARTRIDGE, (E) SAID PERFORATIONS BEING SMALL ENOUGH TO ASSURE RETENTION OF SAID PELLETS AND LARGE AND NUMEROUS ENOUGH TO PROVIDE FREE FLOW OF GASES PASSING THERETHROUGH, (F) AGITATION MEANS CONNECTED TO ONE END OF SAID CARTRIDGE AND EXTENDING INTO THE PROXIMITY OF THE OTHER END OF SAID CARTRIDGE, (G) SAID AGITATION MEANS HAVING A PLURALITY OF BENDS THEREIN WHEREBY MOTION OF THE CARTRIDGE AND HEAT FROM THE EXHAUST GASES APPLIED THEREOT PROVIDE AGITATION, (H) AND MEANS FOR SECURING SAID CARTRIDGE WITHIN THE EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE.
Claim 2
Dependent Claim
142 words
AN INTERNAL COMBUSTION ENGINE EXHAUST GAS PURIFIER COMPRISING: (A) AN ELONGATED HOLLOW CARTRIDGE, (B) SAID CARTRIDGE PROVIDED WITH END CLOSURE MEANS, (C) SAID END CLOSURE MEANS AND SAID CARTRIDGE BEING PROVIDED WITH PERFORATIONS, THE PERFORATIONS IN SAID CARTRIDGE BEING LOCATED AROUND THE PERIPHERY THEREOF, (D) A PLURALITY OF CATALYTIC PELLETS PARTIALLY FILLING SAID CARTRIDGE, (E) SAID PERFORATIONS BEING SMALL ENOUGH TO ASSURE RETENTION OF SAID PELLETS AND LARGE AND NUMEROUS ENOUGH TO PROVIDE FREE FLOW OF GASES PASSING THERETHROUGH, (F) AGITATION MEANS CONNECTED TO ONE END OF SAID CARTRIDGE AND EXTENDING INTO THE PROXIMITY OF THE OTHER END OF SAID CARTRIDGE, (G) SAID AGITATION MEANS HAVING A PLURALITY OF BENDS THEREIN WHEREBY MOTION OF THE CARTRIDGE AND HEAT FROM THE EXHAUST GASES APPLIED THEREOT PROVIDE AGITATION, (H) AND MEANS FOR SECURING SAID CARTRIDGE WITHIN THE EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE.
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |