US3158634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inedible rendering process
Assignee: Marsh Associates
•
Filing: 1961-08-10
•
Granted: 1964-11-24
•
Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Marsh Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:46
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A RENDERING PROCESS FOR CONTINUOUSLY RENDERING BONE, FAT, AND OFFAL ANIMAL MATTER INCLUDING CHUNKS OF ABOUT TWO INCHES AND LESS IN SIZE COMPRISING THE STEPS OF: (1) PREHEATING AND SIMULTANEOUSLY ADMIXING SAID ANIMAL MATTER WITH RECYCLE FAT TO FORM A PROCESSING FLUID MIXTURE CONTAINING FROM ABOUT 5 TO 80 PERCENT SOLIDS, SAID PREHEATING BEING MAINTAINED AT A TEMPERATURE IN THE RANGE OF ABOUT 120*F. TO 250*F.; (2) MOVING SAID FLUID MIXTURE INTO A PRESSURIZED REACTION ZONE OF A PRESSURIZED REACTION ZONE OF A LARGE VOLUME CAPACITY AND MAINTAINING THEREIN A SUBSTANTIAL BODY OF SAID FLUID MIXTURE UNDER A PRESSURE IN THE EXCESS OF ABOUT 50 P.S.I.A. AND AT A TEMPERATURE OF AT LEAST 250*F.; (3) PRESSURE RENDERING SAID FLUID MIXTURE IN SAID REACTION ZONE IN THE PRESENCE OF LIVE STEAM FOR AN AVERAGE TIME PERIOD OF FROM 1 TO 10 MINUTES; (4) PRESSURE FLASHING THE REACTED MIXTURE FROM SAID PRESSURIZED REACTION ZONE TO AN APPROXIMATELY ATMOSPHERIC PRESSURE ZONE WHEREBY A PORTION OF THE ASSOCIATED WATER IS REMOVED FROM SAID FLUID MIXTURE; (5) SEPARATING THE FAT AND REMAINING WATER IN SAID FLUID MIXTURE FROM THE SOLIDS IN SAID FLUID MIXTURES; AND (6) RECYCLING A PORTION OF THE PROCESSED FAT TO SAID ADMIXING STEP.
Claim 2
Dependent Claim
202 words
A RENDERING PROCESS FOR CONTINUOUSLY RENDERING BONE, FAT, AND OFFAL ANIMAL MATTER INCLUDING CHUNKS OF ABOUT TWO INCHES AND LESS IN SIZE COMPRISING THE STEPS OF: (1) PREHEATING AND SIMULTANEOUSLY ADMIXING SAID ANIMAL MATTER WITH RECYCLE FAT TO FORM A PROCESSING FLUID MIXTURE CONTAINING FROM ABOUT 5 TO 80 PERCENT SOLIDS, SAID PREHEATING BEING MAINTAINED AT A TEMPERATURE IN THE RANGE OF ABOUT 120*F. TO 250*F.; (2) MOVING SAID FLUID MIXTURE INTO A PRESSURIZED REACTION ZONE OF A PRESSURIZED REACTION ZONE OF A LARGE VOLUME CAPACITY AND MAINTAINING THEREIN A SUBSTANTIAL BODY OF SAID FLUID MIXTURE UNDER A PRESSURE IN THE EXCESS OF ABOUT 50 P.S.I.A. AND AT A TEMPERATURE OF AT LEAST 250*F.; (3) PRESSURE RENDERING SAID FLUID MIXTURE IN SAID REACTION ZONE IN THE PRESENCE OF LIVE STEAM FOR AN AVERAGE TIME PERIOD OF FROM 1 TO 10 MINUTES; (4) PRESSURE FLASHING THE REACTED MIXTURE FROM SAID PRESSURIZED REACTION ZONE TO AN APPROXIMATELY ATMOSPHERIC PRESSURE ZONE WHEREBY A PORTION OF THE ASSOCIATED WATER IS REMOVED FROM SAID FLUID MIXTURE; (5) SEPARATING THE FAT AND REMAINING WATER IN SAID FLUID MIXTURE FROM THE SOLIDS IN SAID FLUID MIXTURES; AND (6) RECYCLING A PORTION OF THE PROCESSED FAT TO SAID ADMIXING STEP.
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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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |