1
Richard R Perry, Anthony G Maran, Anton G Schols: Rendering methods and systems. Squire Sanders & Dempsey, March 31, 1981: US04259252 (10 worldwide citation)

An improved rendering process and system including the use of both a slurry evaporator and cooker. Renderable material is ground and mixed with oil to form a slurry which is then cooked under vacuum in an evaporator to remove some moisture. The resulting partially dewatered slurry is partially deoil ...


2
Richard R Perry, Anthony G Maran, Anton G Schols: Rendering systems. Squire Sanders & Dempsey, June 23, 1981: US04275036 (3 worldwide citation)

An improved rendering process and system including the use of both a slurry evaporator and cooker. Renderable material is ground and mixed with oil to form a slurry which is then cooked under vacuum in an evaporator to remove some moisture. The resulting partially dewatered slurry is partially deoil ...