Patent ID: 6089147
Filing Date: 2000-07-18
Classification: B30B,Y10S

Abstract:
A process for pressing a material selected from the group comprising materials of vegetable and animal origin, comprising:mechanically compressing the material;simultaneously vibrating the material at an ultrasonic frequency, whereby the ultrasonic frequency going through the material modifies the material's internal state so as to considerably reduce resistance offered by the material to mechanical compression;squeezing the material to squeeze out juices contained therein; andtapping the juices squeezed from the material;wherein the steps are carried out at ambient temperature and without heating,wherein the compressing and vibrating steps are carried out by an actuator that is the same for both the compressing and vibrating steps,wherein the material is contained in a container,wherein the actuator comprises a pressure element connected to an ultrasound generator, andwherein the actuator is mounted so that it can slide inside the container.