Patent US2851368A successfully refreshed from Google Patents.
US2851368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal purification
Assignee: Phillips Petroleum Co
•
Filing: 1953-09-28
•
Granted: 1958-09-09
•
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 15:33
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.
References Cited (Backward Citations)
US1359911A
Cited
US2131333A
Cited
US2617274A
Cited
US2552525A
Cited
US2747001A
Cited
US2683178A
Cited
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 |