US3389798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the biological purification of waste water
Assignee: Individual
•
Filing: 1966-11-04
•
Granted: 1968-06-25
•
Expires: 1986-11-04
Abstract
No abstract record available.
Inventors
- 👤 Hartmann Hans
- 👤 Stengelin Johann Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:00
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/08; C02F3/082; C02F3/12; C02F3/1205; C02F3/121; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN APPARATUS FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER WHICH COMPRISES A TANK, AT LEAST ONE IMMERSION DRUM ELEMENT LONGITUDINALLY AND ROTATABLY DISPOSED WITHIN SAID TANK SUCH THAT A PORTION OF THE DRUM ELEMENT EXTENDS ABOVE THE WATER LEVEL OF THE TANK, SAID DRUM ELEMENT BEING DISPOSED ON A LONGITUDINAL SHAFT WITHIN THE TANK AND COMPRISING PAIRS OF STRUTS DIRECTED RADIALLY FROM THE SHAFT, SAID PAIRS BEING CONNECTED TO EACH OTHER BY CONNECTING RODS DISPOSED SUBSTANTIALLY PARALLEL TO THE SHAFT, AT LEAST ONE BAND EXTENDING A DISTANCE FROM AND AROUND THE SHAFT AND PLACED ON THE CONNECTING RODS TO FORM TOGETHER WITH SAID STRUTS A DRUM-SHAPED BODY, MEANS FOR ROTATING THE DRUM ELEMENS WITHIN THE TANK, INLET MEANS FOR INTRODUCING THE WATER TO BE TREATED INTO THE TANK AND MEANS FOR REMOVING THE PURIFIED WATER FROM THE TANK.
Claim 2
Independent Claim
138 words
AN APPARATUS FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER WHICH COMPRISES A TANK, AT LEAST ONE IMMERSION DRUM ELEMENT LONGITUDINALLY AND ROTATABLY DISPOSED WITHIN SAID TANK SUCH THAT A PORTION OF THE DRUM ELEMENT EXTENDS ABOVE THE WATER LEVEL OF THE TANK, SAID DRUM ELEMENT BEING DISPOSED ON A LONGITUDINAL SHAFT WITHIN THE TANK AND COMPRISING PAIRS OF STRUTS DIRECTED RADIALLY FROM THE SHAFT, SAID PAIRS BEING CONNECTED TO EACH OTHER BY CONNECTING RODS DISPOSED SUBSTANTIALLY PARALLEL TO THE SHAFT, AT LEAST ONE BAND EXTENDING A DISTANCE FROM AND AROUND THE SHAFT AND PLACED ON THE CONNECTING RODS TO FORM TOGETHER WITH SAID STRUTS A DRUM-SHAPED BODY, MEANS FOR ROTATING THE DRUM ELEMENS WITHIN THE TANK, INLET MEANS FOR INTRODUCING THE WATER TO BE TREATED INTO THE TANK AND MEANS FOR REMOVING THE PURIFIED WATER FROM THE TANK.
References Cited (Backward Citations)
US1811181A
Cited
US2559704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |