US3785127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scru bing apparatus
Assignee: Individual
•
Filing: 1971-02-22
•
Granted: 1974-01-15
•
Expires: 1991-02-22
Abstract
Abstract An apparatus for scrubbing a stream of air or other gas with a scrubbing liquid (e.g., water). The scrubbing is carried out in successive stages simultaneously with classification of the removed material, the removed material being withdrawn as separate fractions. Each stage is provided with means for scrubbing the gas with liquid droplets and by impingement with surfaces wet with liquid, and also with means for eliminating droplets whereby they are not delivered to the next scrubbing stage.
Inventors
- 👤 E Mare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:37
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; B01D45/00; B01D45/04; B01D45/08; B01D50/00; Y; Y10; Y10S; Y10S55/00; Y10S55/25
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
Gas cleaning apparatus comprising a gas flow passage, a plurality of screens arranged in series along the gas flow passage, each screen having liquid sprays associated therewith to form an assembly with the liquid sprays being directed toward respective screens on the sides thereof upstream of the gas flow, at least one screen following the first of the series in the downstream direction formed as a plate with a plurality of punched-out strip portions offset with respect to the plane of the plate and with the major area of the punched-out strips parallel to the plane of the plate to provide openings on each side of the strip portions transverse to the gas flow passage, with this latter screen and spray assembly being adapted for finer screening than any assembly preceding it in the series.
Claim 2
Dependent Claim
135 words
Gas cleaning apparatus comprising a gas flow passage, a plurality of screens arranged in series along the gas flow passage, each screen having liquid sprays associated therewith to form an assembly with the liquid sprays being directed toward respective screens on the sides thereof upstream of the gas flow, at least one screen following the first of the series in the downstream direction formed as a plate with a plurality of punched-out strip portions offset with respect to the plane of the plate and with the major area of the punched-out strips parallel to the plane of the plate to provide openings on each side of the strip portions transverse to the gas flow passage, with this latter screen and spray assembly being adapted for finer screening than any assembly preceding it in the series.
Claim 3
Dependent Claim
24 words
Gas cleaning apparatus as claimed in claim 1 in which the strip portions are offset towards the upstream side of the gas flow passage.
Claim 4
Dependent Claim
24 words
Gas cleaning apparatus as claimed in claim 1 in which the strip portions are offset towards the downstream side of the gas flow passage.
Claim 5
Dependent Claim
23 words
Gas cleaning apparatus as claimed in claim 1 in which screens on either side of the screen defined are made of rod-like elements.
Claim 6
Dependent Claim
22 words
Gas cleaning apparatus as claimed in claim 4 in which sprays are adapted for use with different liquid pressures for each screen.
Claim 7
Dependent Claim
21 words
Gas cleaning apparatus as claimed in claim 4 in which sprays are adapted for use with different liquids for each screen.
Claim 8
Dependent Claim
18 words
Gas cleaning apparatus as claimed in claim 4 in which separate collection troughs are associated with each screen.
Claim 9
Dependent Claim
22 words
Gas cleaning apparatus as claimed in claim 4 in which moisture eliminators are located in the gas flow passage after each screen.
References Cited (Backward Citations)
US1625831A
Cited
DE478081C
Cited
US885185A
Cited
US907634A
Cited
US1117309A
Cited
US1222541A
Cited
US1223082A
Cited
US3036417A
Cited
US3237381A
Cited
US3266224A
Cited
US3522000A
Cited
US3550356A
Cited
US3653186A
Cited
US3656279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |