US3336016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for aerating sewage in an aerating tank
Assignee: Individual
•
Filing: 1965-08-09
•
Granted: 1967-08-15
•
Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Schreiber August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:35
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/232; B01F23/2323; B01F23/23231; B01F23/232311; B01F35/00; B01F35/30; B01F35/32; B01F35/32005; B01F35/3203; B01F23/23105; B01F23/2311; B01F23/23112; B01F23/231121; B01F35/32015; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/70; Y10S261/75
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
DEVICE FOR AERATING MIXTURES OF ACTIVATED SLUDGE AND WASTE WATER, COMPRISING A ONE-CHAMBER AERATION BASIN HAVING A FLAT BASIN FLOOR, AIR SUPPLY PIPES DIPPING INTO A MIXTURE OF ACTIVATED SLUDGE AND WASTE WATER, AND TERMINATING AT A DISTANCE ABOVE THE BASIN FLOOR, SAID PIPES HAVING EXIT OPENINGS FOR THE AIR AT ITS LOWER END, AND GUIDE WALLS SLOPING IN THE SAME DIRECTION AND SECURED OUT OF CONTACT WITH THE BASIN FLOOR ON THE AIR SUPPLY PIPES SO THAT, AT THE START OF THE AERATION, THE MIXTURE OF ACTIVIATED SLUDGE AND WASTE WATER WILL PASS OBLIQUELY THROUGH RISING AIR BUBBLES, AND THE ENTIRE CONTENTS, OF THE BASIN, NOT ONLY IN THE VICINITY OF THE AIR SUPPLY PIPES AND IN THE VICINITY OF THE BASIN FLOOR, IS SUBJECTED TO HORIZONTAL FLOW.
Claim 2
Dependent Claim
129 words
DEVICE FOR AERATING MIXTURES OF ACTIVATED SLUDGE AND WASTE WATER, COMPRISING A ONE-CHAMBER AERATION BASIN HAVING A FLAT BASIN FLOOR, AIR SUPPLY PIPES DIPPING INTO A MIXTURE OF ACTIVATED SLUDGE AND WASTE WATER, AND TERMINATING AT A DISTANCE ABOVE THE BASIN FLOOR, SAID PIPES HAVING EXIT OPENINGS FOR THE AIR AT ITS LOWER END, AND GUIDE WALLS SLOPING IN THE SAME DIRECTION AND SECURED OUT OF CONTACT WITH THE BASIN FLOOR ON THE AIR SUPPLY PIPES SO THAT, AT THE START OF THE AERATION, THE MIXTURE OF ACTIVIATED SLUDGE AND WASTE WATER WILL PASS OBLIQUELY THROUGH RISING AIR BUBBLES, AND THE ENTIRE CONTENTS, OF THE BASIN, NOT ONLY IN THE VICINITY OF THE AIR SUPPLY PIPES AND IN THE VICINITY OF THE BASIN FLOOR, IS SUBJECTED TO HORIZONTAL FLOW.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |