US3216925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous neutralizing of an oily fluid
Assignee: ConocoPhillips Co
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Filing: 1963-09-18
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Granted: 1965-11-09
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Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Fanning
- 👤 George C Feighner
- 👤 Arnold L Coldiron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:13
CPC Classifications
G; G05; G05D; G05D21/00; G05D21/02; B; B01; B01J; B01J19/00; B01J19/0086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD FOR CONTINUOUSLY OBTAINING A PREDETERMINED PH IN A FLOWING STREAM OF SULFONATED OIL WHICH COMPRISES: (A) CONTINUOUSLY ADDIGN TO SAID FLOWING STREAM AN AQUEOUS NEUTRALIZING REAGENT WHICH ALTERS THE PH OF SAID FLOWING STREAM; (B) CONTINUOUSLY WITHDRAWING FROM THE COMBINED STREAM A SAMPLE PORTION THEREOF; (C) CONTINUOUSLY ADMIXING WITH SAID SAMPLE PORTION SOLVENT THEREFOR IN A PREDETERMINED RATIO, SAID SOLVENT COMPRISING A MIXTURE OF ABOUT 4 PARTS BY WEIGHT OF ISOPROPANOL TO 1 PART TOLUENE; (D) PASSING SAID ADMIXTURE TO A PH MEASURING ZONE AND THEREIN MEASURING THE PH OF SAID ADMIXTURE; (E) PRODUCING, RESSPONSIVE TO SAID MEASUREMENT, A SIGNAL PROPORTIONAL TO THE MEASURED PH; AND (F) CONTROLLING THE RATE OF ADDITION OF SAID REAGENT OF STEP (A) RESPONSIVE TO THE SIGNAL PRODUCED IN STEP (E).
Claim 2
Independent Claim
128 words
A METHOD FOR CONTINUOUSLY OBTAINING A PREDETERMINED PH IN A FLOWING STREAM OF SULFONATED OIL WHICH COMPRISES: (A) CONTINUOUSLY ADDIGN TO SAID FLOWING STREAM AN AQUEOUS NEUTRALIZING REAGENT WHICH ALTERS THE PH OF SAID FLOWING STREAM; (B) CONTINUOUSLY WITHDRAWING FROM THE COMBINED STREAM A SAMPLE PORTION THEREOF; (C) CONTINUOUSLY ADMIXING WITH SAID SAMPLE PORTION SOLVENT THEREFOR IN A PREDETERMINED RATIO, SAID SOLVENT COMPRISING A MIXTURE OF ABOUT 4 PARTS BY WEIGHT OF ISOPROPANOL TO 1 PART TOLUENE; (D) PASSING SAID ADMIXTURE TO A PH MEASURING ZONE AND THEREIN MEASURING THE PH OF SAID ADMIXTURE; (E) PRODUCING, RESSPONSIVE TO SAID MEASUREMENT, A SIGNAL PROPORTIONAL TO THE MEASURED PH; AND (F) CONTROLLING THE RATE OF ADDITION OF SAID REAGENT OF STEP (A) RESPONSIVE TO THE SIGNAL PRODUCED IN STEP (E).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |