Patent US3392968A successfully refreshed from Google Patents.
← Back to Patent Explorer
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
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Edmund F Wollmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 22:16
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)

US1138202A Cited
US1155386A Cited
US1594947A Cited
US1939949A Cited
US2050797A Cited
US3256068A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag