US3259567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treatment of detergent-laden wastes
Assignee: General Mills Inc
•
Filing: 1964-01-31
•
Granted: 1966-07-05
•
Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert N Dunning
- 👤 James S Gulenchyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236; C02F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
THE METHOD OF TREATING DETERGENT AND PHOSPHATE LADEN WASTE SOLUTIONS WHICH COMPRISES ADDING A TREATING FLUID CONTAINING A WATER IMMISCIBLE DETERGENT COMPATIBLE AMINE COMPOUND TO SAID WASTE SOLUTION, PASSING THE MIXTURE THROUGH A FIRST TREATING CHAMBER WHEREIN A GAESOUS FLUID IS PASSED THERETHROUGH TO REMOVE A PORTION OF THE DETERGENT ORGANIC AND PHOSPHATE IMPURITIES THEREFROM, AND TO PROVIDE AGITATION, TRANSFERRING SAID PARTIALLY TREATED WASTE SOLUTION FROM SAID FIRST TREATING CHAMBER TO A SECOND TREATING CHAMBER, ADDING A WATER SOLUBLE CHEMICAL HAVING A CATIONIC ELEMENT WHICH FORMS AN INSOLUBLE PHOSPHATE TO SAID PARTIALLY TREATED SOLUTION TO FORM A MIXTURE INCLUDING A PHOSPHATE PECIPITATE IN SAID WASTE SOLUTION, RETAINING SAID MIXTURE IN SAID SECOND TREATING CHAMBER TO COMPLETE THE PRECIPITATION REACTION AND FORM A SLUDGE INCLUDING SAID PHOSPHATE PRECIPITATE AND A PORTION OF SAID DETERGENT AND ORGANIC IMPURITIES, AND THEN SEPARATING THE SLUDGE FROM SAID SOLUTION TO FORM A CLARIFIED TREATED EFFLUENT.
Claim 2
Independent Claim
150 words
THE METHOD OF TREATING DETERGENT AND PHOSPHATE LADEN WASTE SOLUTIONS WHICH COMPRISES ADDING A TREATING FLUID CONTAINING A WATER IMMISCIBLE DETERGENT COMPATIBLE AMINE COMPOUND TO SAID WASTE SOLUTION, PASSING THE MIXTURE THROUGH A FIRST TREATING CHAMBER WHEREIN A GAESOUS FLUID IS PASSED THERETHROUGH TO REMOVE A PORTION OF THE DETERGENT ORGANIC AND PHOSPHATE IMPURITIES THEREFROM, AND TO PROVIDE AGITATION, TRANSFERRING SAID PARTIALLY TREATED WASTE SOLUTION FROM SAID FIRST TREATING CHAMBER TO A SECOND TREATING CHAMBER, ADDING A WATER SOLUBLE CHEMICAL HAVING A CATIONIC ELEMENT WHICH FORMS AN INSOLUBLE PHOSPHATE TO SAID PARTIALLY TREATED SOLUTION TO FORM A MIXTURE INCLUDING A PHOSPHATE PECIPITATE IN SAID WASTE SOLUTION, RETAINING SAID MIXTURE IN SAID SECOND TREATING CHAMBER TO COMPLETE THE PRECIPITATION REACTION AND FORM A SLUDGE INCLUDING SAID PHOSPHATE PRECIPITATE AND A PORTION OF SAID DETERGENT AND ORGANIC IMPURITIES, AND THEN SEPARATING THE SLUDGE FROM SAID SOLUTION TO FORM A CLARIFIED TREATED EFFLUENT.
References Cited (Backward Citations)
US3123553A
Cited
US3200069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |