US3133130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment tank for aerobically purifying waste liquids
Assignee: Dorr Oliver Inc
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Filing: 1959-09-24
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Granted: 1964-05-12
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Expires: 1979-09-24
Abstract
No abstract record available.
Inventors
- 👤 George F Lambeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:37
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1284; C02F3/20; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A TREATAMENT TANK FOR AEROBICALLY PURIFYING WASTE LIQUIDS CARRYING RAW WASTE MATTER AND BIOLOGICALLY ACTIVE FLOCS WHILE PASSING THROUGH THE TANK FROMINFLUENT TO EFFLUENT END THEREOF, AN ARRANGEMENT OF SUBMERGED PARTITION MEANS SPACED FROM THE TANK BOTTOM, DIVIDING THE TANK INTO AT LEAST A PAIR OF ELONGAGTE SECTIONS EXTENDING SIDE BY SIDE BETWEEN THE ENDS OF THE TANK, AND DIVIDING EACH ELONGATE SECTION INTO A SERIES OF UPFLOW AND DOWNFLOW SECTIONS SO ARRANGED IN ALTERNATION THAT THE UPFLOW SECTIONS IN THE ONE ELONGATE SECTION ARE STAGGERED RELATIVE TO THOSE IN THE OTHER ELONGATE SECTION, WHILE SIMILARLY THE DOWNFLOW SECTIONS IN THE ONE ELONGATE SECTION ARE STAGGERED RELATIVE TO THE DOWNFLOW SECTIONS IN THE OTHER ELONGATE SECTION; AND AIR DIFFUSOR MEANS PROVIDED IN EACH UPFLOW SECTION FOR OXYGENATING AS WELL AS IMPELLING THE LIQUID TO RISE THEREIN WHEREBY OXYGENATED LIQUID PASSED FROM EACH UPFLOW SECTION INTO ALL DOWNFLOW SECTIONS BOUNDING THEREON.
Claim 2
Dependent Claim
151 words
IN A TREATAMENT TANK FOR AEROBICALLY PURIFYING WASTE LIQUIDS CARRYING RAW WASTE MATTER AND BIOLOGICALLY ACTIVE FLOCS WHILE PASSING THROUGH THE TANK FROMINFLUENT TO EFFLUENT END THEREOF, AN ARRANGEMENT OF SUBMERGED PARTITION MEANS SPACED FROM THE TANK BOTTOM, DIVIDING THE TANK INTO AT LEAST A PAIR OF ELONGAGTE SECTIONS EXTENDING SIDE BY SIDE BETWEEN THE ENDS OF THE TANK, AND DIVIDING EACH ELONGATE SECTION INTO A SERIES OF UPFLOW AND DOWNFLOW SECTIONS SO ARRANGED IN ALTERNATION THAT THE UPFLOW SECTIONS IN THE ONE ELONGATE SECTION ARE STAGGERED RELATIVE TO THOSE IN THE OTHER ELONGATE SECTION, WHILE SIMILARLY THE DOWNFLOW SECTIONS IN THE ONE ELONGATE SECTION ARE STAGGERED RELATIVE TO THE DOWNFLOW SECTIONS IN THE OTHER ELONGATE SECTION; AND AIR DIFFUSOR MEANS PROVIDED IN EACH UPFLOW SECTION FOR OXYGENATING AS WELL AS IMPELLING THE LIQUID TO RISE THEREIN WHEREBY OXYGENATED LIQUID PASSED FROM EACH UPFLOW SECTION INTO ALL DOWNFLOW SECTIONS BOUNDING THEREON.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |