US2956865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas purifier
Assignee: Individual
•
Filing: 1958-02-03
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Granted: 1960-10-18
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Sr David P Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:36
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; F01N13/00; F01N13/009; F01N2230/00; F01N2230/08; F01N2310/00; F01N2310/12; F01N3/38; Y; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
AN EXHAUST GAS PURIFIER COMPRISING MEANS DEFINING AN ELONGATED REACTION CHAMBER ADAPTED TO RECEIVE EXHAUST GAS AND HAVING A SUBSTANTIALLY CLOSED END, A NOZZLE SUPPLIED WITH A COMBUSTILE VAPOR, MEANS IGNITING SAID VAPOR PASSING THROUGH SAIS NOZZLE, MEANS DIRECTING SAID IGNITED VAPOR INTO INTIMATE MIXTURE WITH EXHAUST GAS AT SAID REACTION CHAMBER FOR HEATING AND BURNING THE EXHAUST GAS IN SAID CHAMBER, A MASS OF A REFRACTORY MATERIAL HAVING A HIGH SPECIFIC HEAT AND HIGH-TEMPERATURE DIMENSIONAL STABILITY AND DEFINING A LARGE PLURALITY OF GAS PASSAGES DISPOSED ABOUT SAID CHAMBER IN COMMUNICATION THEREWITH WHEREBY GAS FLOWS OUT OF SAID CHAMBER THROUGH SAID MASS, AND AN OUTER CASING RADIALLY SPACED FROM SAID MASS AND EXTENDING AXIALLY BEYOND THE SAME DEFINING WITH THE LATTER AN EXPANSION CHAMBER HAVING AN OPENING THEREIN FOR DISCHARGE OF GAS.
Claim 2
Dependent Claim
132 words
AN EXHAUST GAS PURIFIER COMPRISING MEANS DEFINING AN ELONGATED REACTION CHAMBER ADAPTED TO RECEIVE EXHAUST GAS AND HAVING A SUBSTANTIALLY CLOSED END, A NOZZLE SUPPLIED WITH A COMBUSTILE VAPOR, MEANS IGNITING SAID VAPOR PASSING THROUGH SAIS NOZZLE, MEANS DIRECTING SAID IGNITED VAPOR INTO INTIMATE MIXTURE WITH EXHAUST GAS AT SAID REACTION CHAMBER FOR HEATING AND BURNING THE EXHAUST GAS IN SAID CHAMBER, A MASS OF A REFRACTORY MATERIAL HAVING A HIGH SPECIFIC HEAT AND HIGH-TEMPERATURE DIMENSIONAL STABILITY AND DEFINING A LARGE PLURALITY OF GAS PASSAGES DISPOSED ABOUT SAID CHAMBER IN COMMUNICATION THEREWITH WHEREBY GAS FLOWS OUT OF SAID CHAMBER THROUGH SAID MASS, AND AN OUTER CASING RADIALLY SPACED FROM SAID MASS AND EXTENDING AXIALLY BEYOND THE SAME DEFINING WITH THE LATTER AN EXPANSION CHAMBER HAVING AN OPENING THEREIN FOR DISCHARGE OF GAS.
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) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |