US3839971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the removal of contaminants from gases and the like
Assignee: Individual
•
Filing: 1973-03-06
•
Granted: 1974-10-08
•
Expires: 1993-03-06
Abstract
Abstract An apparatus for washing the contaminants from gases and fumes including means for creating a draft, as well as means for facilitating the burning of combustible materials. Baffles are provided to create steam to mix with the smoke which is then condensed to remove the particles from the smoke by causing a swirling action.
Inventors
- 👤 J Snelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:37
CPC Classifications
F; F23; F23J; F23J15/00; F23J15/02; F23J15/04; B; B01; B01D; B01D45/00; B01D45/04; B01D45/08; B01D47/00; B01D47/06; B01D50/00; B01D2221/00; B01D2221/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
72 words
A device for removing contaminants comprising: a. a combustion chamber, b. at least one pollution control washing module having a plurality of staggered baffles, c. spraying means associated with said module for washing the contaminants from the gases of combustion as the gases pass around the baffles, and d. fan means positioned at least adjacent to said combustion chamber for redirecting the gases of combustion back into said chamber to facilitate reburning.
Claim 2
Independent Claim
72 words
A device for removing contaminants comprising: a. a combustion chamber, b. at least one pollution control washing module having a plurality of staggered baffles, c. spraying means associated with said module for washing the contaminants from the gases of combustion as the gases pass around the baffles, and d. fan means positioned at least adjacent to said combustion chamber for redirecting the gases of combustion back into said chamber to facilitate reburning.
Claim 3
Dependent Claim
21 words
A device as defined in claim 1 wherein said combustion chamber has a lining of refractory material including expanded volcanic ash.
Claim 4
Dependent Claim
35 words
A device as defined in claim 1 including a lower baffle positioned close to said combustion chamber, said lower baffle having a trough-like shape wherein water will collect and be turned into steam upon heating.
Claim 5
Dependent Claim
26 words
A device as defined in claim 1 wherein said fan means are directed at an angle of about 45* to the normal upward flow of gas.
Claim 6
Dependent Claim
18 words
A device as defined in claim 1 including a refractory material thereon, said refractory material including expanded pumicite.
Claim 7
Dependent Claim
42 words
A device as defined in claim 1 including a water collection area positioned in the bottom of the lowermost washing module, means for removing the water from said water collection area and means for recirculating the water back to said spraying means.
Claim 8
Dependent Claim
15 words
A device as defined in claim 6 including a settling tank in said recirculating means.
Claim 9
Dependent Claim
15 words
A device as defined in claim 1 wherein said emission chamber is a drawer-like Structure.
Claim 10
Dependent Claim
21 words
A device as defined in claim 8 wherein said drawer-like structure includes a grate therein and refractory material on said walls.
Claim 11
Dependent Claim
22 words
A device as defined in claim 1 including a stack above said washing module and a draft inducing fan in said stack.
Claim 12
Dependent Claim
25 words
A device as defined in claim 1 including a plurality of stacked washing modules, each having a plurality of staggered baffles and spraying means therein.
Claim 13
Dependent Claim
41 words
A device as defined in claim 1 including an upper baffle positioned above said spraying means, said upper baffle having down-turned edges to cause a swirling action of the steam laden gases whereby the water will be induced to drop out.
Claim 14
Dependent Claim
21 words
A combustion chamber having walls of a refractory material, said refractory material including cement, course aggregate, sand, water and expanded pumicite.
Claim 15
Dependent Claim
21 words
A combustion chamber having walls of a refractory material, said refractory material including cement, course aggregate, sand, water and expanded pumicite.
Claim 16
Dependent Claim
32 words
A combustion chamber as defined in claim 10 wherein said expanded pumicite is mixed in a ratio of about six cubic feet per each cubic yard of aggregate, sand, water and cement.
References Cited (Backward Citations)
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Cited
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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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |