Patent US5121602A successfully refreshed from Google Patents.
US5121602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pollution control apparatus
Assignee: Individual
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Filing: 1990-12-26
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Granted: 1992-06-16
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Expires: 2010-12-26
Abstract
Abstract A pollution control apparatus is shown for use on automobiles and trucks. This pollution control apparatus fits on the automotive exhaust pipe. A collector unit is secured between the exhaust pipe and tail pipe. The collector unit has a pair of blowers or bladed rotors which are impinged by a mixture of exhaust gases and water which causes the water droplets and dissolved and entrained materials to separate and drain through outlet drains. Water is injected into a U-shaped trap between exhaust pipe and the collector unit. Water from the bottom of the collector unit is pumped by a pump to a reservoir and entrained material is separated by a filter. Water from the filter drains by gravity through a radiator coil and thence to the reservoir from which it flows through vacuum valve to a U-shaped fitting. The water is injected into the exhaust gas stream to wash out entrained and soluble material. The mixture flows through blowers which cause the entrained and water-dissolved material to separate as described.
Inventors
- 👤 Allan F. McCorvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:55
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/04; F01N13/00; F01N13/009; F01N3/005; F01N2240/00; F01N2240/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S60/00; Y10S60/902
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
234 words
A pollution control apparatus for a motor vehicle having an engine discharging exhaust gases into a muffler and out through a tail pipe, said apparatus comprising means to spray water into said exhaust gases into produce a mist of water droplets containing dissolved and entrained pollutants in said exhaust gases and connected to said muffler, means to separate said water droplets from said exhaust gas mist and pass cleaned exhaust gases from said muffler and out through said tail pipe, said water droplet separating means comprising a housing having a wall with an opening therein dividing the housing into plurality of chambers, means in each of said chambers for separating said water droplets from said mist, means to separate entrained gases from said separated water droplets and pass on a stream of water, said separating means comprising a bladed rotor in each chamber positioned to be impinged and rotated by flow of said mist to coalesce and separate water droplets by centrifugal action, baffles in said chambers to be impinged by said droplets to flow to the bottom of said chambers, an outlet from said housing connected to discharge cleaned gases to said tail pipe, and outlets in the bottom of said chambers to discharge collected water therefrom, means to separate particulate matter from said stream of water, and means to circulate said stream of water, free of particulate matter, to said spray means.
Claim 2
Dependent Claim
234 words
A pollution control apparatus for a motor vehicle having an engine discharging exhaust gases into a muffler and out through a tail pipe, said apparatus comprising means to spray water into said exhaust gases into produce a mist of water droplets containing dissolved and entrained pollutants in said exhaust gases and connected to said muffler, means to separate said water droplets from said exhaust gas mist and pass cleaned exhaust gases from said muffler and out through said tail pipe, said water droplet separating means comprising a housing having a wall with an opening therein dividing the housing into plurality of chambers, means in each of said chambers for separating said water droplets from said mist, means to separate entrained gases from said separated water droplets and pass on a stream of water, said separating means comprising a bladed rotor in each chamber positioned to be impinged and rotated by flow of said mist to coalesce and separate water droplets by centrifugal action, baffles in said chambers to be impinged by said droplets to flow to the bottom of said chambers, an outlet from said housing connected to discharge cleaned gases to said tail pipe, and outlets in the bottom of said chambers to discharge collected water therefrom, means to separate particulate matter from said stream of water, and means to circulate said stream of water, free of particulate matter, to said spray means.
Claim 3
Dependent Claim
36 words
A pollution control apparatus according to claim 1 in which said spray means is connected between said engine and said muffler and said water droplet separating means is connected between said muffler and said tail pipe.
Claim 4
Dependent Claim
28 words
A pollution control apparatus according to claim 1 in which said spray means comprises a U-trap and a spray tube therein positioned in the flow of exhaust gases.
Claim 5
Dependent Claim
26 words
A pollution control apparatus according to claim 1 including venturi means in series with said bottom outlets to assist in withdrawal of water from said chambers.
Claim 6
Dependent Claim
25 words
A pollution control apparatus according to claim 4 in which said bottom outlets include an inclined discharge tube in which said venturi means are positioned.
Claim 7
Dependent Claim
33 words
A pollution control apparatus according to claim 1 in which said means to separate entrained gases from said separated water droplets and pass on a stream of water includes a pressure relief valve.
Claim 8
Dependent Claim
24 words
A pollution control apparatus according to claim 1 in which said means to separate particulate matter from said stream of water includes a filter.
Claim 9
Dependent Claim
50 words
A pollution control apparatus according to claim 1 in which said spray means comprises a U-trap and a spray tube therein positioned in the flow of exhaust gases, said U-trap is connected between said engine and said muffler and said housing is connected between said muffler and said tail pipe.
Claim 10
Dependent Claim
37 words
A pollution control apparatus according to claim 8 in which said bottom outlets include an inclined discharge tube with venturi means therein assisting in discharge of water from said collector and from the bottom of said U-trap.
Claim 11
Dependent Claim
33 words
A pollution control apparatus according to claim 8 in which said means to separate entrained gases from said separated water droplets and pass on a stream of water includes a pressure relief valve.
Claim 12
Dependent Claim
24 words
A pollution control apparatus according to claim 8 in which said means to separate particulate matter from said stream of water includes a filter.
Claim 13
Dependent Claim
63 words
A pollution control apparatus according to claim 9 in which said bottom outlets include an inclined discharge tube in which said venturi means are positioned, said means to separate entrained gases from said separated water droplets and pass on a stream of water comprises a pressure relief valve, and said means to separate particulate matter from said stream of water comprises a filter.
Claim 14
Dependent Claim
34 words
A pollution control apparatus according to claim 1 including a reservoir positioned to hold water to be fed to said water spray means, and means for cooling water returned from said particulate separating means.
Claim 15
Dependent Claim
33 words
A pollution control apparatus according to claim 8 a reservoir positioned to hold water to be fed to said water spray means, and means for cooling water returned from said particulate separating means.
References Cited (Backward Citations)
US3282047A
Cited
US3353336A
Cited
FR1459584A
Cited
US3763634A
Cited
US3630030A
Cited
US3768981A
Cited
US3967445A
Cited
US3817222A
Cited
US3979909A
Cited
US4301652A
Cited
US4578091A
Cited
US4821513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-16 | 1995-12-16 | 1996-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-16 | 1999-12-16 | 2000-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-16 | 2003-12-16 | 2004-06-16 | $7700.00 | Window Closed / Lapsed |