US3170868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treatment with temperature control
Assignee: Phillips Petroleum Co
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Filing: 1961-09-11
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Granted: 1965-02-23
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Vernon T Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:12
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF TREATING WATER WHIC COMPRISES ADDING A COAGULANT TO SAID WATER, AGITATING B Y STIRRING AT A RATE OF 0.7-2.8 R.P.M. THE ADMIXTURE OF SAID WATER AND SAID COAGULANT IN A RELATIVELY QUIESCENT REACTION ZONE, ALLOWING SOLIDS RESULTING FROM SAID ADDING TO SETTLE IN SAID ZONE, WITHDRAWING CLARIFIED WATER FROM SAID ZONE, MEASURING THE TEMPERATURE DIFFERENCE OF WATER UPSTREAM OF AND DOWNSTREAM OF SAID ZONE, AND CONTROLLING THE RATE OF SAID AGITATING IN RESPONSE TO SAID MEASURING IN ACCORDANCE WITH THE FOLLOWING RELATIONSHIPS.
Claim 2
Independent Claim
85 words
A METHOD OF TREATING WATER WHIC COMPRISES ADDING A COAGULANT TO SAID WATER, AGITATING B Y STIRRING AT A RATE OF 0.7-2.8 R.P.M. THE ADMIXTURE OF SAID WATER AND SAID COAGULANT IN A RELATIVELY QUIESCENT REACTION ZONE, ALLOWING SOLIDS RESULTING FROM SAID ADDING TO SETTLE IN SAID ZONE, WITHDRAWING CLARIFIED WATER FROM SAID ZONE, MEASURING THE TEMPERATURE DIFFERENCE OF WATER UPSTREAM OF AND DOWNSTREAM OF SAID ZONE, AND CONTROLLING THE RATE OF SAID AGITATING IN RESPONSE TO SAID MEASURING IN ACCORDANCE WITH THE FOLLOWING RELATIONSHIPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |