US3180880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering fatty materials
Assignee: Rath Packing Co
•
Filing: 1960-05-31
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Granted: 1965-04-27
•
Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 John R Harrison
- 👤 Merlin J Andera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:50
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12; Y; Y10; Y10S; Y10S530/00; Y10S530/859
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A CONTINUOUS PROCESS FOR RENDERING FATTY MATERIAL WHICH COMPRISES GRINDING SAID MATERIAL, ADVANCING THE GROUND MATERIAL COUNTERCURRENT TO A STREAM OF HOT NONCONDENSABLE COMBUSTION GAS WHILE CONSTANTLY AGITATING THE MATERIAL, SAID MATERIAL BEING IN CONTACT WITH SAID GAS FOR A TIME SUFFICIENT TO DRY SAID MATERIAL, MELT THE FAT AND DENATURE THE PROTEIN THERIN, SAID STREAM FLOWING AT A RATE SUFFICIENT TO ENTRAIN DRY LIGHTWEIGHT SOLID COMPONENTS OF SAID MATERIAL, REMOVING SAID LIGHTWEIGHT COMPONENTS FROM SAID STREAM, SEPARATING SAID FAT FROM THE RENDERED SOLIDS, AND COMBINING THE RENDERED SOLIDS AND SAID LIGHTWEIGHT COMPONENTS TO FORM A MIXTURE AND PRESSING SAID MIXTURE TO EXTRACT THE REMAINING FAT.
Claim 2
Dependent Claim
106 words
A CONTINUOUS PROCESS FOR RENDERING FATTY MATERIAL WHICH COMPRISES GRINDING SAID MATERIAL, ADVANCING THE GROUND MATERIAL COUNTERCURRENT TO A STREAM OF HOT NONCONDENSABLE COMBUSTION GAS WHILE CONSTANTLY AGITATING THE MATERIAL, SAID MATERIAL BEING IN CONTACT WITH SAID GAS FOR A TIME SUFFICIENT TO DRY SAID MATERIAL, MELT THE FAT AND DENATURE THE PROTEIN THERIN, SAID STREAM FLOWING AT A RATE SUFFICIENT TO ENTRAIN DRY LIGHTWEIGHT SOLID COMPONENTS OF SAID MATERIAL, REMOVING SAID LIGHTWEIGHT COMPONENTS FROM SAID STREAM, SEPARATING SAID FAT FROM THE RENDERED SOLIDS, AND COMBINING THE RENDERED SOLIDS AND SAID LIGHTWEIGHT COMPONENTS TO FORM A MIXTURE AND PRESSING SAID MIXTURE TO EXTRACT THE REMAINING FAT.
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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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |