US2748152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rendering process for recovery of fat and gelatin
Assignee: Armour and Co
•
Filing: 1952-10-02
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Granted: 1956-05-29
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Expires: 1972-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert H Sifferd
- 👤 Lindson P Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:20
CPC Classifications
C; C09; C09H; C09H3/00; C11; C11B; C11B1/00; C11B1/12; C11B1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR RENDERING ANIMAL FAT WHEREIN GELATIN IS OBTAINED AS A BY-PRODUCT, COMPRISING THE STEPS OF COMMINUTING ANIMAL MATERIAL COMPOSED PRINCIPALY OF FAT AND CONTAINING A LESSER AMOUNT OF COLLAGEN, PASSING THE COMMINUTED MATERIAL IN THE FORM OF AN AQUEOUS SLURRY CONTINUOUSLY THROUGH AN ELONGATED RESTRICTED ZONE AND WHILE MAINTAINING SAID MATERIAL IN TURBULENT AGITATION BY MEANS OF A PLURALITY OF STEAM JETS WITHIN SAID RESTRICTED ZONE, HEATING SAID MATERIAL WITHIN SAID ZONE TO A TEMPERATURE SUFFICIENT TO LIQUEFY SUBSTANTIALLY ALL OF THE FAT THEREIN WITHOUT HYDROLIZING THE COLLAGEN THEREIN BEYOND THE GELATIN STAGE, THEREBY LIBERATING THE FAT IN SAID MATERIAL AND AT THE SAME TIME CONVERTING THE COLLAGEN TO GELATIN, RECOVERING THE LIQUIFIED FAT FROM SAID SLURRY, AND THEN RECOVERING GELATIN AS A BY-PRODUCT FROM THE REMAINING LIQUID PORTION OF SAID SLURRY.
Claim 2
Dependent Claim
134 words
A PROCESS FOR RENDERING ANIMAL FAT WHEREIN GELATIN IS OBTAINED AS A BY-PRODUCT, COMPRISING THE STEPS OF COMMINUTING ANIMAL MATERIAL COMPOSED PRINCIPALY OF FAT AND CONTAINING A LESSER AMOUNT OF COLLAGEN, PASSING THE COMMINUTED MATERIAL IN THE FORM OF AN AQUEOUS SLURRY CONTINUOUSLY THROUGH AN ELONGATED RESTRICTED ZONE AND WHILE MAINTAINING SAID MATERIAL IN TURBULENT AGITATION BY MEANS OF A PLURALITY OF STEAM JETS WITHIN SAID RESTRICTED ZONE, HEATING SAID MATERIAL WITHIN SAID ZONE TO A TEMPERATURE SUFFICIENT TO LIQUEFY SUBSTANTIALLY ALL OF THE FAT THEREIN WITHOUT HYDROLIZING THE COLLAGEN THEREIN BEYOND THE GELATIN STAGE, THEREBY LIBERATING THE FAT IN SAID MATERIAL AND AT THE SAME TIME CONVERTING THE COLLAGEN TO GELATIN, RECOVERING THE LIQUIFIED FAT FROM SAID SLURRY, AND THEN RECOVERING GELATIN AS A BY-PRODUCT FROM THE REMAINING LIQUID PORTION OF SAID SLURRY.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |