US2745856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering animal fats
Assignee: Hygrade Food Products Corp
•
Filing: 1952-04-30
•
Granted: 1956-05-15
•
Expires: 1972-04-30
Abstract
No abstract record available.
Inventors
- 👤 William R Dayen
- 👤 Kenneth M Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:56
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD OF CONTINUOUSLY RENDERING FATS WHICH COMPRISES COARSELY GRINDING FAT CONTAINING TISSUE, CONTINUOUSLY FEEDING SAID GROUND TISSUE TO A POINT OF APPLICATION OF HEAT, HEATING THE GROUND TISSUE THUS FED TO A RELATIVELY LOW TEMPERATURE NOT HIGH ENOUGH TO COAGULATE SAID TISSUE BUT SUFFICIENT TO MELT THE SAID FAT, THEREBY TO RENDER THE TISSUE EFFECTIVELY FLUID, CONTINUOUSLY PUMPING SAID FLUIDIZED TISSUE TO A SECOND POINT OF APPLICATION OF HEAT, AND CONTINUOUSLY HEATING THE FLUIDIZED TISSUE THUS BEING FED UNDER PRESSURE TO A TEMPERATURE SUFFICIENT TO COAGULATE THE ANIMAL PROTEIN CONTAINED THEREIN, CONTINUOUSLY PUMPING SAID COAGULATED TISSUE TO A RENDERING POINT, AND THEREAFTER RENDERING THE TISSUE BY CONTINUOUSLY GRINDING THE SAME TO A SUB-CELLULAR NON-FIBROUS STATE.
Claim 2
Independent Claim
116 words
THE METHOD OF CONTINUOUSLY RENDERING FATS WHICH COMPRISES COARSELY GRINDING FAT CONTAINING TISSUE, CONTINUOUSLY FEEDING SAID GROUND TISSUE TO A POINT OF APPLICATION OF HEAT, HEATING THE GROUND TISSUE THUS FED TO A RELATIVELY LOW TEMPERATURE NOT HIGH ENOUGH TO COAGULATE SAID TISSUE BUT SUFFICIENT TO MELT THE SAID FAT, THEREBY TO RENDER THE TISSUE EFFECTIVELY FLUID, CONTINUOUSLY PUMPING SAID FLUIDIZED TISSUE TO A SECOND POINT OF APPLICATION OF HEAT, AND CONTINUOUSLY HEATING THE FLUIDIZED TISSUE THUS BEING FED UNDER PRESSURE TO A TEMPERATURE SUFFICIENT TO COAGULATE THE ANIMAL PROTEIN CONTAINED THEREIN, CONTINUOUSLY PUMPING SAID COAGULATED TISSUE TO A RENDERING POINT, AND THEREAFTER RENDERING THE TISSUE BY CONTINUOUSLY GRINDING THE SAME TO A SUB-CELLULAR NON-FIBROUS STATE.
References Cited (Backward Citations)
US137698A
Cited
US705034A
Cited
US2388284A
Cited
US2467529A
Cited
US2468636A
Cited
US2616910A
Cited
US2697112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |