US2603667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractional crystallization
Assignee: Phillips Petroleum Co
•
Filing: 1950-01-26
•
Granted: 1952-07-15
•
Expires: 1970-01-26
Abstract
No abstract record available.
Inventors
- 👤 Howard J Pankratz
- 👤 Harris A Dutcher
- 👤 Carl E Alleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:16
CPC Classifications
B; B01; B01D; B01D9/00; B01D9/0004; B01D9/0013; B01D9/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A FRACTIONAL CRYSTALLIZER COMPRISING A HOLLOW CONDUIT, A CLOSED HOUSING JOINING THE ENDS OF SAID HOLLOW CONDUIT, AN ENDLESS FLEXIBLE CONVEYOR WITHIN SAID CONDUIT AND SAID HOUSING, A PLURALITY OF PERFORATE FLIGHTS ATTCTED TO SAID CONVEYER, A HEATER AROUND SAID CONDUIT NEAR ONE END THEREOF AND A COOLER AROUND SAID CONDUIT NEAR THE OPPOSITE END THEREOF, AN INLET TO SAID CONDUIT FOR LIQUID TO BE FRACTIONALLY CRYSTALLIZED, MEANS WITHIN SAID HOUSING IN COMMUNICATION WITH SAID CONVEYER FOR CAUSING SAME TO MOVE IN THE DIRECTION FROM SAID COOLER PAST SAID INLET AND TOWARD SAID HEATER, AN OUTLET FROM SAID CONDUIT AT THE END OF SAID COOLER OPPOSITE THE DIRECTION OF MOVEMENT OF SAID CONVEYOR AND A SECOND OUTLET AT THE END OF SAID CONVEYOR, AND DIRECTION OF MOVEMENT OF SAID CONVEYOR, AND MEANS FOR MAINTAINING AN IMMISCIBLE FLUID PHASE BETWEEN SAID OUTLETS FOR SEPARTING PRODUCTS OF FRACTIONAL CRYSTALLIZATION.
Claim 2
Dependent Claim
147 words
A FRACTIONAL CRYSTALLIZER COMPRISING A HOLLOW CONDUIT, A CLOSED HOUSING JOINING THE ENDS OF SAID HOLLOW CONDUIT, AN ENDLESS FLEXIBLE CONVEYOR WITHIN SAID CONDUIT AND SAID HOUSING, A PLURALITY OF PERFORATE FLIGHTS ATTCTED TO SAID CONVEYER, A HEATER AROUND SAID CONDUIT NEAR ONE END THEREOF AND A COOLER AROUND SAID CONDUIT NEAR THE OPPOSITE END THEREOF, AN INLET TO SAID CONDUIT FOR LIQUID TO BE FRACTIONALLY CRYSTALLIZED, MEANS WITHIN SAID HOUSING IN COMMUNICATION WITH SAID CONVEYER FOR CAUSING SAME TO MOVE IN THE DIRECTION FROM SAID COOLER PAST SAID INLET AND TOWARD SAID HEATER, AN OUTLET FROM SAID CONDUIT AT THE END OF SAID COOLER OPPOSITE THE DIRECTION OF MOVEMENT OF SAID CONVEYOR AND A SECOND OUTLET AT THE END OF SAID CONVEYOR, AND DIRECTION OF MOVEMENT OF SAID CONVEYOR, AND MEANS FOR MAINTAINING AN IMMISCIBLE FLUID PHASE BETWEEN SAID OUTLETS FOR SEPARTING PRODUCTS OF FRACTIONAL CRYSTALLIZATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |