US3095273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of carbon black feed oil preheat
Assignee: Phillips Petroleum Co
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Filing: 1961-04-17
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Granted: 1963-06-25
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Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Oliver K Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:15
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; G; G05; G05D; G05D23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A METHOD OF PREHEATING TO A PREDETERMINED TEMPERATURE A LIQUID FEED AT A PREDETERMINED FLOW RATE FOR A PROCESS COMPRISING HEATING A STREAM OF SAID LIQUID AT A FLOW RATE GREATER THAN THE FLOW RATE OF LIQUID REQUIRED BY SAID PROCESS BY INDIRECT HEAT EXCHANGE WITH A HEATING AGENT, DIVIDING THE HEATED STREAM OF LIQUID INTO TWO PROTIONS, REGULATING THE RATE OF FLOW OF ONE PORTION AT A RATE REQUIRED BY SAID PROCESS, PASSING SAID ONE PORTION TO SAID PROCESS AT SAID RATE, SENSING THE TEMPERATURE OF SAID ONE PORTION AND CONTROLLING THE TEMPERATURE OF SAID ONE PORTION BY EGULATING THE RATE OF FLOW OF THE OTHER PORTION WHEREBY THE TOTAL RATE OF FLOW OF SAID STREAM OF LIQUID IN SAID HEAT EXCHANGE IS VARIED THEREBY CONTROLLING THE TEMPERATURE OF SAID ONE PORTION OF HEAT EXCHANGED LIQUID.
Claim 2
Independent Claim
137 words
A METHOD OF PREHEATING TO A PREDETERMINED TEMPERATURE A LIQUID FEED AT A PREDETERMINED FLOW RATE FOR A PROCESS COMPRISING HEATING A STREAM OF SAID LIQUID AT A FLOW RATE GREATER THAN THE FLOW RATE OF LIQUID REQUIRED BY SAID PROCESS BY INDIRECT HEAT EXCHANGE WITH A HEATING AGENT, DIVIDING THE HEATED STREAM OF LIQUID INTO TWO PROTIONS, REGULATING THE RATE OF FLOW OF ONE PORTION AT A RATE REQUIRED BY SAID PROCESS, PASSING SAID ONE PORTION TO SAID PROCESS AT SAID RATE, SENSING THE TEMPERATURE OF SAID ONE PORTION AND CONTROLLING THE TEMPERATURE OF SAID ONE PORTION BY EGULATING THE RATE OF FLOW OF THE OTHER PORTION WHEREBY THE TOTAL RATE OF FLOW OF SAID STREAM OF LIQUID IN SAID HEAT EXCHANGE IS VARIED THEREBY CONTROLLING THE TEMPERATURE OF SAID ONE PORTION OF HEAT EXCHANGED LIQUID.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |