Processing of offal or the like for obtaining separated fat and protein material therefrom

Claim 1

THE PROCESS OF TREATING RAW POULTRY AND ANIMAL OFFAL AND RECOVERING OILS AND LOW FAT CONTENT PROTEIN SOLIDS THEREFROM CONSISTING OF THE STEPS: CONVEYING RAW FRESH OFFAL FROM A SLAUGHTERING POINT, REDUCING THE SIZE OF SOLIDS IN SAID OFFAL, MOVING SAID OFFAL IN A STREAM, SUBJECTING THE OFFAL WITH THE REDUCED SIZE PARTICLES TO HEAT BY INTRODUCING STEAM INTO SAID STREAM TO RAISE THE TEMPERATURE TO APPROXIMATELY 180*F. TO 190*F. TO REDUCE THE VISCOSITY OF THE OILS CONTAINED IN THE SOLIDS, CENTRIFUGALLY SEPARATING SAID HEATED OFFAL INTO A FLOWABLE LIQUID PHASE AND A SOLID PHASE, WITH THE FATS NORMALLY ASSOCIATED WITH THE SOLIDS BEING LARGELY DISPLACED THEREGROM AND FORMING A PART OF THE LIQUID PHASE, AND DRYING SAID SOLID PHASE FROM SAID CENTRIFUGAL SEPARATON TO REMOVE WATER AND FORMA A CAKE HAVING A FAT CONTENT OF LESS THAN 15% BY WEIGHT ON A DRY BASIS.