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US3695005A Expired / Lapsed US ⏱️ 0.0 years remaining

Purification device for exhaust gas

Assignee: Individual
•
Filing: 1970-11-04
•
Granted: 1972-10-03
•
Expires: 1990-11-04
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Abstract

Abstract The purification device for use of exhaust gas to be embodied by the present invention consists of a vertically longer purification tank, and at bottom of the tank there is arranged and equipped with nozzle to which many fine pores are perforated; and an exhaust gas introducing pipe come from exhausting part of engine is connected to said nozzle, and a filter plate is installed at center position of said purification tank, and an entrainment prevention baffle plate is installed at upper position of said filter plate, and an adsorption zone which is filled up with particles of activated carbon is installed at upper position of said entrainment prevention plate. At uppermost position of said purification tank, there is attached the outlet for discharge of exhaust gas, and at bottom position of the tank there is attached a discharge outlet for draining the solution. The purification solution is filled up to an appropriate level which level is lower for the position than the filter plate in said purification tank. A pouring inlet for supply of purification solution is equipped to said purification tank.

Inventors

  • 👤 Masaharu Yuzawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 10:22
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; Y; Y10; Y10S; Y10S55/00; Y10S55/30

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 220 words
An exhaust gas purification device for use in automobiles comprising a purification tank having a gas outlet at its top and a liquid outlet at its bottom, said tank being partly filled with an alkaline solution, an exhaust gas discharge nozzle having a plurality of small holes or pores horizontally mounted at the bottom of said tank, a filter plate of suitable fiber materials mounted at the central portion of said tank leaving a clearance from the level of said solution, an adsorption layer formed of a body of paRticles of activated carbon mounted in the uppermost portion of said tank, a baffle plate mounted within the clearance between said filter plate and said adsorption layer, said baffle plate having on its surface a plurality of rectangular tongue pieces integrally formed with said surface and extending toward same sideward direction and a plurality of rectangular gas openings partly covered by said tongue pieces all positioned in several rows, a pipe connection for exhaust gases from the engine to the inlet of said nozzle, valve means comprising an automatic control valve fixed at the free end of said nozzle and operative depending on the amount of the exhaust gases introduced, and a reverse flow check valve fixed midway within said pipe connection for prevention of reverse flow of said purification solution.
Claim 2
Dependent Claim 220 words
An exhaust gas purification device for use in automobiles comprising a purification tank having a gas outlet at its top and a liquid outlet at its bottom, said tank being partly filled with an alkaline solution, an exhaust gas discharge nozzle having a plurality of small holes or pores horizontally mounted at the bottom of said tank, a filter plate of suitable fiber materials mounted at the central portion of said tank leaving a clearance from the level of said solution, an adsorption layer formed of a body of paRticles of activated carbon mounted in the uppermost portion of said tank, a baffle plate mounted within the clearance between said filter plate and said adsorption layer, said baffle plate having on its surface a plurality of rectangular tongue pieces integrally formed with said surface and extending toward same sideward direction and a plurality of rectangular gas openings partly covered by said tongue pieces all positioned in several rows, a pipe connection for exhaust gases from the engine to the inlet of said nozzle, valve means comprising an automatic control valve fixed at the free end of said nozzle and operative depending on the amount of the exhaust gases introduced, and a reverse flow check valve fixed midway within said pipe connection for prevention of reverse flow of said purification solution.

References Cited (Backward Citations)

US613093A Cited
US3103426A Cited
US1536726A Cited
US2250226A Cited
US2789032A Cited
US3132192A Cited
US3294380A Cited
US3414248A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-03 1976-04-03 1976-10-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-03 1980-04-03 1980-10-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-03 1984-04-03 1984-10-03 $7700.00 Window Closed / Lapsed

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