US3560379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating water
Assignee: Aqseptence Group GmbH
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Filing: 1969-02-20
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Granted: 1971-02-02
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Expires: 1989-02-20
Abstract
Abstract A METHOD AND APPARATUS IN WHICH A LIQUID TO BE TREATED IS PLACED IN AN ELONGATED AERATION TANK AND AN AERATION DEVICE, ADJUSTABLY MOUNTED ON A BRIDGE EXTENDING ACROSS THE TOP OF THE TANK, IS MOVED IN THE ELONGATED DIRECTION OF THE TANK. ONLY THE LIQUID IN THE AREA BELOW THE DEVICE IS AERATED AND MIXED, THE OTHER AREAS OF THE TANK BEING RELATIVELY QUIESCENT FOR TRHE PROMOTION OF FLOCCULATION. A SLUDGE SCRAPER ATTACHESD TO THE BRIDGE MOVES THEREWITH TO SCRAPE SLUDGE FROM A SECONDARY TANK ADJACENT THE AERATION TANK.
Inventors
- 👤 Josef Muskat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:19
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1205; C02F3/1221; C02F3/14; C02F3/16; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |