US3142667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Countercurrent extraction of gelatin
Assignee: JBS USA LLC
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Filing: 1960-10-26
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Granted: 1964-07-28
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Expires: 1980-10-26
Abstract
No abstract record available.
Inventors
- 👤 Donald P Grettie
- 👤 Eldon J Strandine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:35
CPC Classifications
C; C09; C09H; C09H3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE METHOD OF EXTRACTING GELATIN FROM COLLAGENOUS MATERIAL WHICH COMPRISES: CONTROLLING THE TEMPERATURE OF AQUEOUS EXTRACTION LIQUID SUBSTANTIALLY CONTINUOUSLY FLOWING THROUGH A PLURALITY OF EXTRACTION ZONES WHEREBY TO MAINTAIN A TEMPERATURE GRADIENT ON THE LIQUID THROUGHOUT SAID ZONES, SAID TEMPERATURE GRADIENT RANGING FROM ABOVE ABOUT 175*F., WHICH IS SUFFICIENT TO EXTRACT GELATIN FROM THE COLLAGENOUS MATERIAL TO A LOWER TEMPERTURE WHICH IS BELOW ABOUT 150*F., BUT EFFECTIVE TO MAINTAIN EXTRACTED GELATIN AND THE AQUEOUS EXTRACTION LIQUID IN A READILY FLOWABLE CONDITION; COUNTERCURRENTLY CONTACTING SAID COLLAGENOUS MATERIAL SEQUENTIALLY WITH THE LIQUID IN EACH OF SAID ZONES WHEREBY TO EXTRACT A PORTION OF GELATIN FROM SAID MATERIAL IN EACH ZONE, SAID CONTACT OF COLLAGENOUS MATERIAL WITH SAID LIQUID IN SAID ZONES COMMENCING AT THE LOWER TEMPERATURE END OF SAID TEMPERATURE GRADIENT AND TERMAINATING AT THE HIGHER TEMPERATURE END THEREOF; AND COLLECTING THE AQUEOUS EXTRACTION LIQUID INCLUDING GELATIN.
Claim 2
Independent Claim
145 words
THE METHOD OF EXTRACTING GELATIN FROM COLLAGENOUS MATERIAL WHICH COMPRISES: CONTROLLING THE TEMPERATURE OF AQUEOUS EXTRACTION LIQUID SUBSTANTIALLY CONTINUOUSLY FLOWING THROUGH A PLURALITY OF EXTRACTION ZONES WHEREBY TO MAINTAIN A TEMPERATURE GRADIENT ON THE LIQUID THROUGHOUT SAID ZONES, SAID TEMPERATURE GRADIENT RANGING FROM ABOVE ABOUT 175*F., WHICH IS SUFFICIENT TO EXTRACT GELATIN FROM THE COLLAGENOUS MATERIAL TO A LOWER TEMPERTURE WHICH IS BELOW ABOUT 150*F., BUT EFFECTIVE TO MAINTAIN EXTRACTED GELATIN AND THE AQUEOUS EXTRACTION LIQUID IN A READILY FLOWABLE CONDITION; COUNTERCURRENTLY CONTACTING SAID COLLAGENOUS MATERIAL SEQUENTIALLY WITH THE LIQUID IN EACH OF SAID ZONES WHEREBY TO EXTRACT A PORTION OF GELATIN FROM SAID MATERIAL IN EACH ZONE, SAID CONTACT OF COLLAGENOUS MATERIAL WITH SAID LIQUID IN SAID ZONES COMMENCING AT THE LOWER TEMPERATURE END OF SAID TEMPERATURE GRADIENT AND TERMAINATING AT THE HIGHER TEMPERATURE END THEREOF; AND COLLECTING THE AQUEOUS EXTRACTION LIQUID INCLUDING GELATIN.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |