US2559462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for separating oxidizable materials from liquids by oxygenation and aerobic biochemical action
Assignee: Research Corp
•
Filing: 1948-03-26
•
Granted: 1951-07-03
•
Expires: 1968-03-26
Abstract
No abstract record available.
Inventors
- 👤 Pirnie Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:03
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1294; C02F1/00; C02F1/52; C02F1/5281; C02F3/26; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN THE FLOCCULATION BY THE ACTION OF AEROBIC MICRO-BIOCLOGICAL ORGANISMS ON ORGANIC MATTER CONTAINED IN A LIQUID MASS, THE METHOD WHICH COMPRISES INTRODUCING A STREAM OF THE LIQUID MASS INTO A BIOCHEMICAL RETENTION TANK IN WHICH THE LIQUID MASS PASSES UPWARD THROUGH IN ACTIVE BIOLOGICAL FLOC, SUPPLYING TO THE STREAM, AS IT FLOWS TO THE TANK, A QUANTITY OF OXYGEN LIMITED TO APPROXIMATELY THE AMOUNT OF OXYGEN THAT THE STREAM WILL DISSOLVE AT SUBSTANTIALLY ATMOSPHERIC PRESSURE, WITHDRAWING SOME OF THE LIQUID MASS FROM A ZONE OF THE TANK WHERE THE LIQUID MASS HAS BEEN SUBJECTED TO THE ACTION OF THE AEROBIC MICRO-BIOLOGICAL ORGANISMS BY PASSAGE THROUGH AT LEAST A PORTION OF THE FLOC, FEEDING THE LIQUID MASS THUS WITHDRAWN INTO THE STREAM FLOWISNG TO THE TANK AND UPSTREAM OF THE OXYGEN SUPPLY AND
Claim 2
Dependent Claim
133 words
IN THE FLOCCULATION BY THE ACTION OF AEROBIC MICRO-BIOCLOGICAL ORGANISMS ON ORGANIC MATTER CONTAINED IN A LIQUID MASS, THE METHOD WHICH COMPRISES INTRODUCING A STREAM OF THE LIQUID MASS INTO A BIOCHEMICAL RETENTION TANK IN WHICH THE LIQUID MASS PASSES UPWARD THROUGH IN ACTIVE BIOLOGICAL FLOC, SUPPLYING TO THE STREAM, AS IT FLOWS TO THE TANK, A QUANTITY OF OXYGEN LIMITED TO APPROXIMATELY THE AMOUNT OF OXYGEN THAT THE STREAM WILL DISSOLVE AT SUBSTANTIALLY ATMOSPHERIC PRESSURE, WITHDRAWING SOME OF THE LIQUID MASS FROM A ZONE OF THE TANK WHERE THE LIQUID MASS HAS BEEN SUBJECTED TO THE ACTION OF THE AEROBIC MICRO-BIOLOGICAL ORGANISMS BY PASSAGE THROUGH AT LEAST A PORTION OF THE FLOC, FEEDING THE LIQUID MASS THUS WITHDRAWN INTO THE STREAM FLOWISNG TO THE TANK AND UPSTREAM OF THE OXYGEN SUPPLY AND
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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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |