US2851368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal purification
Assignee: Phillips Petroleum Co
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Filing: 1953-09-28
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Granted: 1958-09-09
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Expires: 1973-09-28
Abstract
No abstract record available.
Inventors
- 👤 Robert A Findlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:41
CPC Classifications
B; B01; B01D; B01D9/00; B01D9/0004; A; A23; A23B; A23B2/00; A23B2/90; A23B2/905; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; B01D9/004; B01D9/0059; C; C12; C12H; C12H6/00; C12H6/04; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
306 words
THE PROCESS OF CONCENTRATING FRUIT JUICE WHICH COMPRISES CRYSTALLIZING AT LEAST A PORTION OF THE WATER THEREFROM IN A FIRST CRYSTALLIZATION STEP; PASSING SAID CRYSTALLIZED AND UNCRYSTALLIZED MATERIAL INTO A FIRST PURIFICATION ZONE; MOVING SAID CRYSTALS THROUGH SAID FIRST CRYSTAL PURIFICATION ZONE AS A COMPACT MASS; MELTING AT LEAST A PORTION OF SAID CRYSTALS IN THE DOWNSTREAM END PORTION OF SAID FIRST CRYSTAL PURIFICATION ZONE; PASSING AT LEAST A PORTION OF RESULTING MELT AS REFLUX COUNTERCURRENTLY THROUGH SAID COMPACT MASS OF CRYSTALS SO AS TO REMOVE OCCLUDED MATERIALS THEREFROM; REMOVING A SUBSTANTIALLY PURE WATER PRODUCT FROM THE DOWNSTREAM END PORTION OF SAID FIRST CRYSTAL PURIFICATION ZONE; REMOVING UNCRYSTALLIZED MATERIAL, TOGETHER WITH SAID REFLUX AND OCCLUDED MATERIAL, FROM THE UPSTREAM END PORTION OF SAID FIRST CRYSTAL PURIFICATION ZONE; SUBJECTING THE MATERIALS REMOVED FROM THE UPSTREAM END PORTION OF SAID FIRST CRYSTAL PURIFICATION ZONE TO COOLING SO AS TO CRYSTALLIZE AT LEAST A PORTION THEREOF; SEPARATING UNCRYSTALLIZED MATERIAL FROM SAID CRYSTALS AS A CONCENTRATE PRODUCT; MOVING SAID CRYSTALS THROUGH A SECOND CRYSTAL PURIFICATION ZONE AS A COMPACT MASS; MELTING AT LEAST A PORTION OF SAID CRYSTALS IN THE DOWNSTREAM END PORTION OF SAID SECOND CRYSTAL PURIFICATION ZONE; PASSING A PORTION OF RESULTING MELT COUNTERCURRENTLY THROUGH SAID CRYSTAL MASS SO AS TO REMOVE OCCLUDED MATERIALS FROM SAID CRYSTALS; REMOVING SAID REFLUX AND OCCLUDED MATERIALS FROM THE UPSTREAM END PORTION OF SAID SECOND CRYSTAL PURIFICATION ZONE; RECOVERING A PRODUCT FROM THE DOWNSTREAM END PORTION OF SAID SECOND CRYSTAL PURIFICATION ZONE WHICH CONTAINS A SUBSTANTIAL AMOUNT OF THE MATERIAL OBTAINED AS UNCRYSTALLIZED CONCENTRATE; CHILLING AT LEAST A PORTION OF THE PRODUCT OBTAINED FROM THE DOWNSTREAM END PORTION OF SAID SECOND CRYSTAL PURIFICATION ZONE SO AS TO CRYSTALLIZE AT LEAST A PORTION THEREOF; AND INTRODUCING THE CHILLED MATERIALS TO THE UPSTREAM END PORTION OF AT LEAST ONE OF SAID CRYSTAL PURIFICATION ZONES.
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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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |