US2925383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of refinery wastes
Assignee: JBS USA LLC
•
Filing: 1956-10-22
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Granted: 1960-02-16
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Expires: 1976-10-22
Abstract
No abstract record available.
Inventors
- 👤 Bradford Purdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:19
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/24; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN IMPROVED METHOD OF TREATING A FIRST AQUEOUS VEGETABLE OIL REFINERY WASTE CONTAINING A SUSPENDED FLOC, THE STEPS COMPRISING: INTRODUCING AN AERATED SECOND WASTE WATER CARRYING FINE SOLID PARTICLES INTO SAID FIRST AQUEOUS WASTE, SAID INTRODUCED STREAM HAVING A LEAST A LARGE SHARE OF ITS ARE LOAD DISSLOVED THEREIN, INTIMATELY MIXING THE TWO AQUEOUS WASTES TO DISTRIBUTE THE AIR THROUGHOUT THE MIXTURE AND TO INTERMINGLE THE SUSPENDED FLOC AND SOLID PARTICLES, INTRODUCING THE COMBINED WASTES TO A QUIESCENT ZONE, FLOATING THE FLOCS TO THE SURFACE OF THE COMBINED LIQUIDS, AND SEPARATING THE FLOATED FLOC FROM THE LIQUID.
Claim 2
Dependent Claim
97 words
AN IMPROVED METHOD OF TREATING A FIRST AQUEOUS VEGETABLE OIL REFINERY WASTE CONTAINING A SUSPENDED FLOC, THE STEPS COMPRISING: INTRODUCING AN AERATED SECOND WASTE WATER CARRYING FINE SOLID PARTICLES INTO SAID FIRST AQUEOUS WASTE, SAID INTRODUCED STREAM HAVING A LEAST A LARGE SHARE OF ITS ARE LOAD DISSLOVED THEREIN, INTIMATELY MIXING THE TWO AQUEOUS WASTES TO DISTRIBUTE THE AIR THROUGHOUT THE MIXTURE AND TO INTERMINGLE THE SUSPENDED FLOC AND SOLID PARTICLES, INTRODUCING THE COMBINED WASTES TO A QUIESCENT ZONE, FLOATING THE FLOCS TO THE SURFACE OF THE COMBINED LIQUIDS, AND SEPARATING THE FLOATED FLOC FROM THE LIQUID.
References Cited (Backward Citations)
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Cited
US2120634A
Cited
US2370772A
Cited
US2509695A
Cited
US2765919A
Cited
US2765081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |