Method for treatment of fatty animal material

Claim 1

A METHOD FOR THE EXTRACTION AND TREATMENT OF ANIMAL MATERIAL, COMPRISING THE STEPS OF INTRODUCING INTO A TREATING VESSEL WATER-CONTAINING ANIMAL MATERIAL INCLUDING ONE, FAT AND MEAT PORTIONS; SUBJECTING SAID MATERIAL IN SAID TRREATING VESSEL FOR A PERIOD OF ABOUT 30 MINUTES TO AN ABSOLUTE PRESSURE OF ABOUT 5 ATMOSPHERES AND A FIRST TEMPERATURE OF ABOUT 130*C. SO AS TO BREAK OPEN FAT-CONTAINING MEAT CELLS, TO STERILIZE SAID MATERIAL AND TO COMMINUTE AT LEAST A PORTION OF SAID BONES DUE TO SAID ELEVATED PRESSURE AND TEMPERATURE; IMMEDIATELY THEREAFTER SUBJECTING SAID MATERIAL IN SAID TREATING VESSEL TO A DEGREE OF SUB-ATMOSPHERIC PRESSURE SUCH THAT THE WATER OF SAID MATERIAL WILL BOIL AT A SECOND TEMPERATURE OF ABOUT 70* C., AND MAINTAINING SAID MATERIAL IN SAID TREATING VESSEL AT AT LEAST SAID SECOND TEMPERATURE AND AT SAID SUB-ATMOSPHERIC PRESSURE UNTIL THE WATER-CONTENT THEREOF IS REDUCED TO BETWEEN ABOUT 7 AND 9%, THEREBY TRANSFORMING SAID FAT AND MEAT PORTIONS AND AT LEAST PART OF SAID BONE PORTION OF SAID ANIMAL MATERIAL INTO A PULP; THEREAFTER CONTINUOUSLY SCREENING SAID PULP WHILE MAINTAINING THE TEMPERATURE THEREOF ABOVE THE MELTING POINT OF ITS FATTY CONSITUENTS SO AS TO OBTAIN A SUBSTANTIALLY HOMOGENOUS PULP; CONTINUOUSLY INTRODUCING SAID SCREENED PULP AT A TEMPERATURE ABOVE THE MELTING POINT OF ITS FATTY CONSTITUENTS INTO A CENTIFUGE ROTATABLE ABOUT A SUBSTANTIALLY HORIZONTAL AXIS; CONTINUOUSLY SUBJECTING SAID SCREENED PULP IN SAID CENTRIFUGE TO CENTRIFUGING AT A TEMPERATURE ABOVE THE MELTING POINT OF THE FATTY CONSTITUENTS OF SAID PULP SO AS TO SEPARATE FATTY CONSTITUENTS THEREFROM AND RETAINING IN SAID CENTRIFUGE A PULP RESIDUE OF GREATLY REDUCED FAT CONTENT; RECOVERING SAID SEPARATED FATTY CONSTITUENTS; PUSHING SAID PULP RESIDUE OF GREATLY REDUCED FAT CONTENT OUT OF THE CENTRIFUGE IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE AXIS THEREOF; RECOVERING SAID PULP RESIDUE; COOLING SAID RECOVERED PULP RESIDUE TO SUBSTANTIALLY AMBIENT TEMPERATURE THEREBY SOLIDIFYING THE SAME; AND BREAKING UP THE THUS-SOLIDIFIED PULP RESIDUE INTO SMALLER PARTICLES.

Claim 2

A METHOD FOR THE EXTRACTION AND TREATMENT OF ANIMAL MATERIAL, COMPRISING THE STEPS OF INTRODUCING INTO A TREATING VESSEL WATER-CONTAINING ANIMAL MATERIAL INCLUDING ONE, FAT AND MEAT PORTIONS; SUBJECTING SAID MATERIAL IN SAID TRREATING VESSEL FOR A PERIOD OF ABOUT 30 MINUTES TO AN ABSOLUTE PRESSURE OF ABOUT 5 ATMOSPHERES AND A FIRST TEMPERATURE OF ABOUT 130*C. SO AS TO BREAK OPEN FAT-CONTAINING MEAT CELLS, TO STERILIZE SAID MATERIAL AND TO COMMINUTE AT LEAST A PORTION OF SAID BONES DUE TO SAID ELEVATED PRESSURE AND TEMPERATURE; IMMEDIATELY THEREAFTER SUBJECTING SAID MATERIAL IN SAID TREATING VESSEL TO A DEGREE OF SUB-ATMOSPHERIC PRESSURE SUCH THAT THE WATER OF SAID MATERIAL WILL BOIL AT A SECOND TEMPERATURE OF ABOUT 70* C., AND MAINTAINING SAID MATERIAL IN SAID TREATING VESSEL AT AT LEAST SAID SECOND TEMPERATURE AND AT SAID SUB-ATMOSPHERIC PRESSURE UNTIL THE WATER-CONTENT THEREOF IS REDUCED TO BETWEEN ABOUT 7 AND 9%, THEREBY TRANSFORMING SAID FAT AND MEAT PORTIONS AND AT LEAST PART OF SAID BONE PORTION OF SAID ANIMAL MATERIAL INTO A PULP; THEREAFTER CONTINUOUSLY SCREENING SAID PULP WHILE MAINTAINING THE TEMPERATURE THEREOF ABOVE THE MELTING POINT OF ITS FATTY CONSITUENTS SO AS TO OBTAIN A SUBSTANTIALLY HOMOGENOUS PULP; CONTINUOUSLY INTRODUCING SAID SCREENED PULP AT A TEMPERATURE ABOVE THE MELTING POINT OF ITS FATTY CONSTITUENTS INTO A CENTIFUGE ROTATABLE ABOUT A SUBSTANTIALLY HORIZONTAL AXIS; CONTINUOUSLY SUBJECTING SAID SCREENED PULP IN SAID CENTRIFUGE TO CENTRIFUGING AT A TEMPERATURE ABOVE THE MELTING POINT OF THE FATTY CONSTITUENTS OF SAID PULP SO AS TO SEPARATE FATTY CONSTITUENTS THEREFROM AND RETAINING IN SAID CENTRIFUGE A PULP RESIDUE OF GREATLY REDUCED FAT CONTENT; RECOVERING SAID SEPARATED FATTY CONSTITUENTS; PUSHING SAID PULP RESIDUE OF GREATLY REDUCED FAT CONTENT OUT OF THE CENTRIFUGE IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE AXIS THEREOF; RECOVERING SAID PULP RESIDUE; COOLING SAID RECOVERED PULP RESIDUE TO SUBSTANTIALLY AMBIENT TEMPERATURE THEREBY SOLIDIFYING THE SAME; AND BREAKING UP THE THUS-SOLIDIFIED PULP RESIDUE INTO SMALLER PARTICLES.