US3733827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-polution device for combustion engine exhaust gases
Assignee: Individual
•
Filing: 1972-02-03
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Granted: 1973-05-22
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Expires: 1992-02-03
Abstract
Abstract An anti-polution device for combustion engine exhaust gases in which the toxic elements of the exhaust gases are removed as much as possible through an exhaust gas cleaner which is connected with the exhaust pipe of the engine and is also connected to the carburetor air regulator of the engine on its suction side. The exhaust gases thus purified through the exhaust gas cleaner and the carburetor air regulator are mixed with air by the sucking force of the engine and are sent into the combustion chamber of the engine for recombustion of the same therein.
Inventors
- 👤 K Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; F; F02; F02M; F02M26/00; F02M26/12; F02M26/13; F02M26/14; F02M26/15; F02M26/17; F02M26/36; B01D2253/00; B01D2253/10; B01D2253/102; B01D2257/00; B01D2257/50; B01D2257/502; B01D2257/60; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2257/93; B01D2258/00; B01D2258/01; B01D53/0446
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
181 words
An anti-polution device for combustion engines having an exhaust pipe and a carburetor air regulator, comprising an exhaust gas cleaner having a first chamber receiving the discharge from the exhaust pipe; a series of second chambers communicating with and receiving in succession the exhaust gas from the first chamber; said first and second chambers containing activated carbon; a third chamber receiving the exhaust gas from the said second chambers; a venturi in said third chamber leading to the said air regulator; an air pipe extending into the third chamber for directing air into the mouth of the venturi; means in said third chamber for permitting escape of exhaust gas from the third chamber to the atmosphere when the engine is idling; and means in the air regulator for further mixing the exhaust gas from the third chamber with air, whereby the exhaust gas purified in the exhaust gas cleaner is mixed with air in the said cleaner and in said air regulator and drawn by the sucking force of the engine into the combustion chambers of the engine for recombustion therein.
Claim 2
Dependent Claim
181 words
An anti-polution device for combustion engines having an exhaust pipe and a carburetor air regulator, comprising an exhaust gas cleaner having a first chamber receiving the discharge from the exhaust pipe; a series of second chambers communicating with and receiving in succession the exhaust gas from the first chamber; said first and second chambers containing activated carbon; a third chamber receiving the exhaust gas from the said second chambers; a venturi in said third chamber leading to the said air regulator; an air pipe extending into the third chamber for directing air into the mouth of the venturi; means in said third chamber for permitting escape of exhaust gas from the third chamber to the atmosphere when the engine is idling; and means in the air regulator for further mixing the exhaust gas from the third chamber with air, whereby the exhaust gas purified in the exhaust gas cleaner is mixed with air in the said cleaner and in said air regulator and drawn by the sucking force of the engine into the combustion chambers of the engine for recombustion therein.
Claim 3
Dependent Claim
30 words
In a device as set forth in claim 1, said mixing means comprising a second venturi having an adjustable jet cap provided with a plurality of air nozzles disposed therearound.
Claim 4
Dependent Claim
23 words
In a device as set forth in claim 1, said air pipe and outer pipe being adjustable toward the mouth of the venturi.
Claim 5
Dependent Claim
80 words
In a device as set forth in claim 1, said exhaust gas cleaner comprising a closed casing surrounding a perforated end of the exhaust pipe; and said series of second chambers being formed by vertical walls spaced from the ends of the casing and by other horizontal walls disposed between the first walls intermediate the exhaust pipe and venturi; said walls having perforations therein interconnecting the second series of chambers to cause the exhaust gas to flow therethrough in succession.
Claim 6
Dependent Claim
186 words
An anti-polution device for a combustion engine having an exhaust pipe and a carburetor air regulator, comprising an exhaust gas cleaner having a first chamber receiving the dischange from the engine exhaust pipe; a series of second chambers communicating with and receiving in succession the exhaust gas from the first chamber; said first and second chambers containing activated carbon; a third chamber receiving the exhaust gas from the said second chambers; a venturi in said third chamber leading to the said air regulator; an air pipe extending into the third chamber and terminating adjacent the mouth of the venturi; an outer pipe surrounding and spaced from the air pipe permitting escape of exhaust gas from the third chamber to the atmosphere when the engine is idling; and means in the air regulator for further mixing the exhaust gas from the third chamber with air, whereby the exhaust gas purified in the exhaust gas cleaner is mixed with air in the said cleaner and in said air regulator and drawn by the sucking force of the engine into the combustion chambers of the engine for recombustion therein.
Claim 7
Dependent Claim
186 words
An anti-polution device for a combustion engine having an exhaust pipe and a carburetor air regulator, comprising an exhaust gas cleaner having a first chamber receiving the dischange from the engine exhaust pipe; a series of second chambers communicating with and receiving in succession the exhaust gas from the first chamber; said first and second chambers containing activated carbon; a third chamber receiving the exhaust gas from the said second chambers; a venturi in said third chamber leading to the said air regulator; an air pipe extending into the third chamber and terminating adjacent the mouth of the venturi; an outer pipe surrounding and spaced from the air pipe permitting escape of exhaust gas from the third chamber to the atmosphere when the engine is idling; and means in the air regulator for further mixing the exhaust gas from the third chamber with air, whereby the exhaust gas purified in the exhaust gas cleaner is mixed with air in the said cleaner and in said air regulator and drawn by the sucking force of the engine into the combustion chambers of the engine for recombustion therein.
Claim 8
Dependent Claim
29 words
In a device as set forth in claim 5, said means comprising a second venturi having an adjustable jet cap provided with a plurality of air nozzles disposed therearound.
Claim 9
Dependent Claim
23 words
In a device as set forth in claim 5, said air pipe and outer pipe being adjustable towards the mouth of the venturi.
Claim 10
Dependent Claim
80 words
In a device as set forth in claim 5, said exhaust gas cleaner comprising a closed casing surrounding a perforated end of the exhaust pipe; and said series of second chambers, being formed by vertical walls spaced from the ends of the casing and by other horizontal walls disposed between the first walls intermediate the exhaust pipe and venturi; said walls having perforations therein interconnecting the series Of second chambers to cause the exhaust gas to flow therethrough in succession.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |