US3211536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic process control system
Assignee: Phillips Petroleum Co
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Filing: 1962-10-05
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Granted: 1965-10-12
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Expires: 1982-10-05
Abstract
No abstract record available.
Inventors
- 👤 Joe Van Pool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:21
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
252 words
AN APPARATUS FOR CONTROLLING THE FLOW OF A REACTANT STREAM TO A REACTION APPARATUS COMPRISING, IN COMBINATION, A REACTOR, A TANK, MEANS FOR FLOWING FRESH REACTANT AND UNUSED REACTANT TO SAID TANK, FIRST CONDUIT MEANS CONNECTED TO SAID TANK AND SAID REACTOR, PRESSURE MEANS OPERABLY CONNECTED TO SAID FIRST CONDIUT FOR LPRESSURING REACTANT FROM SAID TANK TO SAID REACTOR, A FIRST CONTROL VALVE MEANS CONNECTED TO SAID FIRST CONDIUT DOWNSTREAM OF SAID PRESSURE MEANS, A FIRST FLOW CONTROL SENSING MEANS CONNECTED TO SENSE THE FLOW IN SAID FIRST CONDIUT AND ADAPTED TO REGULATE THE POSITION OF SAID FIRST VALVE RESPONSIVE TO FLOW IN SAID FIRST CONDUIT, A SECOND CONDUIT CONNECTED TO SAID FIRST CONDUIT DOWNSTREAM OF SID FLOW CONTROL VALVE AND TO A SOURCE OF FRESH REACTANT, A CHECK VALVE MEANS IN SAID FIRST CONDUIT NEAR THE JUNCTURE OF SAID FIRST AND SECOND CONDUITS TO PREVENT REACTANT FROM SAID SECOND CONDUIT ENTERING SAID FIRST CONDUIT, A SECOND FLOW CONTROL SENSING MENAS IN SAID SECOND CONDUIT ADAPTED TO MAINTAIN THE FLOW IN SAID SECOND CONDUIT AT SUBSTANTIALLY THE SAME FLOW RATE AS IN SAID FIRST CONDUIT, A SECOND CONTROLVALVE MEANS OPERABLE CONNECTED TO SAID SECOND CONDUIT, AND A PRESSURE CONTROL MEANS CONNECTED TO SAID FIRST FLOW CONTROL SENSING MEANS AND SAID SECOND CONTROL VALVE MEANS ADAPTED TO MOVE SAID SECOND VALVE FROM A NORMALLY CLOSED LPOSITION TO THE OPEN POSITION RESPONSIVE TO A SUBSTANTIAL PRESSURE DROP IN SAID FIRST CONDUIT, THUS INSURING A SOURCE OF REACTANT FOR SAID REACTOR DURING SAID PRESSURE DROP.
Claim 2
Independent Claim
252 words
AN APPARATUS FOR CONTROLLING THE FLOW OF A REACTANT STREAM TO A REACTION APPARATUS COMPRISING, IN COMBINATION, A REACTOR, A TANK, MEANS FOR FLOWING FRESH REACTANT AND UNUSED REACTANT TO SAID TANK, FIRST CONDUIT MEANS CONNECTED TO SAID TANK AND SAID REACTOR, PRESSURE MEANS OPERABLY CONNECTED TO SAID FIRST CONDIUT FOR LPRESSURING REACTANT FROM SAID TANK TO SAID REACTOR, A FIRST CONTROL VALVE MEANS CONNECTED TO SAID FIRST CONDIUT DOWNSTREAM OF SAID PRESSURE MEANS, A FIRST FLOW CONTROL SENSING MEANS CONNECTED TO SENSE THE FLOW IN SAID FIRST CONDIUT AND ADAPTED TO REGULATE THE POSITION OF SAID FIRST VALVE RESPONSIVE TO FLOW IN SAID FIRST CONDUIT, A SECOND CONDUIT CONNECTED TO SAID FIRST CONDUIT DOWNSTREAM OF SID FLOW CONTROL VALVE AND TO A SOURCE OF FRESH REACTANT, A CHECK VALVE MEANS IN SAID FIRST CONDUIT NEAR THE JUNCTURE OF SAID FIRST AND SECOND CONDUITS TO PREVENT REACTANT FROM SAID SECOND CONDUIT ENTERING SAID FIRST CONDUIT, A SECOND FLOW CONTROL SENSING MENAS IN SAID SECOND CONDUIT ADAPTED TO MAINTAIN THE FLOW IN SAID SECOND CONDUIT AT SUBSTANTIALLY THE SAME FLOW RATE AS IN SAID FIRST CONDUIT, A SECOND CONTROLVALVE MEANS OPERABLE CONNECTED TO SAID SECOND CONDUIT, AND A PRESSURE CONTROL MEANS CONNECTED TO SAID FIRST FLOW CONTROL SENSING MEANS AND SAID SECOND CONTROL VALVE MEANS ADAPTED TO MOVE SAID SECOND VALVE FROM A NORMALLY CLOSED LPOSITION TO THE OPEN POSITION RESPONSIVE TO A SUBSTANTIAL PRESSURE DROP IN SAID FIRST CONDUIT, THUS INSURING A SOURCE OF REACTANT FOR SAID REACTOR DURING SAID PRESSURE DROP.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |