US3712031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-smog and exhaust device
Assignee: Individual
•
Filing: 1971-03-19
•
Granted: 1973-01-23
•
Expires: 1991-03-19
Abstract
Abstract This invention discloses an anti-smog and exhaust device positioned rearwardly of a typical muffler, as used in an internal-combustion engine exhaust system. The specific device comprises a rotatable drum adapted to receive a filter unit therein for rotation with the drum about a tubular pipe that is fixedly connected to the exhaust system at one end thereof, and connected at its opposite end to a reservoir which supplies a liquid chemical by means of a pumping system to the rotating drum by way of the tubular pipe. The liquid intermingles with the exhaust fumes as they pass from the muffler to the interior of the drum and thereby transports the foreign particles and elements of the fumes into the filter unit, allowing the cleaned exhaust gases to enter the reservoir area where they once again are sprayed by a mist of the liquid before being expelled to the atmosphere as non-contaminated fumes.
Inventors
- 👤 Cruz L Santa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:58
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/16; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02A50/2351; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
64 words
An anti-smog device as recited in claim 1, wherein said first group of openings are ingress openings positioned adjacent the exhaust tube end attached to said exhaust system, said second group of openings are egress openings positioned adjacent the end of said exhaust tube attached to said reservoir and wherein said first and second group of openings are separated by a partition wall therebetween.
Claim 2
Dependent Claim
74 words
An anti-smog device as recited in claim 2, wherein said drum comprises: A. a housing having end walls, said end walls being provided with an opening therein to receive said exhaust tube, and wherein one of said end walls is removably secured to permit access to the interior of said drum; B. means within said housing for removably securing said filter cartridge therein; and C. a plurality of baffles longitudinally spaced within said housing.
Claim 3
Dependent Claim
58 words
An anti-smog device as recited in claim 3, wherein said rotating means comprises: A. an electric motor; B. a first gear secured to said electric motor; C. a second gear secured to said filter drum; and D. a drive chain operably interconnecting said first and second gears, whereby said filter drum is rotated when said motor is energized.
Claim 4
Dependent Claim
84 words
An anti-smog device as recited in claim 3, wherein said pumping means comprises: A. a pump interconnected between said reservoir and said filter drum, said pump having an inlet port and a plurality of outlet ports; B. a motor operably connected to said pump; C. a first flow line communicating said solution in said reservoir with said inlet port of said pump; and D. a second flow line forming a communicating passage from said outlet port to the ingress side of said exhaust tube.
Claim 5
Dependent Claim
76 words
An anti-smog device as recited in claim 5, wherein said reservoir includes: A. a filter screen removably supported within said reservoir below the end of said exhaust tube which terminates within said reservoir; B. a plurality of vertical baffles disposed in the lower portion of said reservoir; and C. a spraying device arranged within said reservoir for spraying said cleaning solution, said spraying device being operably connected to one of said outlet ports of said pump.
Claim 6
Dependent Claim
16 words
An anti-smog device as recited in claim 6, wherein said cleaning solution comprises an anti-freeze solution.
Claim 7
Dependent Claim
76 words
An anti-smog device as recited in claim 6, wherein said filter cartridge comprises: A. an outer elongated tubular screen; B. an inner elongated tubular screen having a diameter smaller than said outer tubular screen; C. a filter material disposed between said outer and inner screens; and D. a pair of end covers, each being secured at opposite ends of said filter cartridge and each of said covers having central openings therein to receive said exhaust tube.
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |