US3392968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas purification and filtration device
Assignee: Individual
•
Filing: 1966-08-03
•
Granted: 1968-07-16
•
Expires: 1986-08-03
Abstract
No abstract record available.
Inventors
- 👤 Edmund F Wollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:16
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN EXHAUST GAS PURIFICATION DEVICE, COMPRISING: AN UPRIGHT TANK ADAPTED TO HOLD A QUANTITY OF WATER AT A PREDETERMINED FLUID LEVEL AND HAVING A BOTTOM VALVED DRAIN FOR INTERMITTENT REMOVAL OF SLUDGE; A FUNNEL-SHAPED PREMIX INLET AT THE TOP OF THE TANK; AN ELONGATED DELIVERY PIPE DEPENDING FROM SAID PREMIX INLET EXTENDING DOWN INTO THE TANK HAVING AN OUTLET ADJACENT ITS LOWER END; AN EXHAUST GAS DELIVERY PIPE EXTENDING INTO SAID PREMIX INLET: AN AIR PIPE CONNECTED TO A SOURCE OF AIR PRESSURE EXTENDING THROUGH SAID PREMIX INLET AND DOWN INTO SAID DELIVERY PIPE HAVING AN OUTLET ABOVE SAID FLUID LEVEL; AN AIR JET ON THE INTERIOR OF SAID AIR PIPE; A WATER SUPPLY CONNECTED TO SAID AIR PIPE ADJACENT SAID AIR JET; WATER MIXING WITH AIR UNDER PRESSURE AND FLOWING INTO SAID PREMIX DELIVERY PIPE FOR MIXING WITH SAID EXHAUST GASES PROVIDING A WATER MIST PRERINSE OF SAID EXHAUST GASES BEFORE DELIVERY INTO SAID TANK; AND AN OUTLET PIPE AT THE TOP OF SAID TANK FOR DELIVERY OF EXHAUST GASSES FROM WHICH CERTAIN CONTAMINANTS HAVE BEEN REMOVED.
Claim 2
Dependent Claim
178 words
AN EXHAUST GAS PURIFICATION DEVICE, COMPRISING: AN UPRIGHT TANK ADAPTED TO HOLD A QUANTITY OF WATER AT A PREDETERMINED FLUID LEVEL AND HAVING A BOTTOM VALVED DRAIN FOR INTERMITTENT REMOVAL OF SLUDGE; A FUNNEL-SHAPED PREMIX INLET AT THE TOP OF THE TANK; AN ELONGATED DELIVERY PIPE DEPENDING FROM SAID PREMIX INLET EXTENDING DOWN INTO THE TANK HAVING AN OUTLET ADJACENT ITS LOWER END; AN EXHAUST GAS DELIVERY PIPE EXTENDING INTO SAID PREMIX INLET: AN AIR PIPE CONNECTED TO A SOURCE OF AIR PRESSURE EXTENDING THROUGH SAID PREMIX INLET AND DOWN INTO SAID DELIVERY PIPE HAVING AN OUTLET ABOVE SAID FLUID LEVEL; AN AIR JET ON THE INTERIOR OF SAID AIR PIPE; A WATER SUPPLY CONNECTED TO SAID AIR PIPE ADJACENT SAID AIR JET; WATER MIXING WITH AIR UNDER PRESSURE AND FLOWING INTO SAID PREMIX DELIVERY PIPE FOR MIXING WITH SAID EXHAUST GASES PROVIDING A WATER MIST PRERINSE OF SAID EXHAUST GASES BEFORE DELIVERY INTO SAID TANK; AND AN OUTLET PIPE AT THE TOP OF SAID TANK FOR DELIVERY OF EXHAUST GASSES FROM WHICH CERTAIN CONTAMINANTS HAVE BEEN REMOVED.
References Cited (Backward Citations)
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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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |