US PATENT SUBCLASS 426 / 448
.~.~.~.~ From extrusion zone using mechanical pressure


Current as of: June, 1999
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426 /   HD   FOOD OR EDIBLE MATERIAL: PROCESSES, COMPOSITIONS, AND PRODUCTS

665  DF  PROCESSES {25}
443  DF  .~ Preparation of product which is dry in final form {7}
445  DF  .~.~ Size increase by puffing, or pore forming of solid material by heating {3}
447  DF  .~.~.~ By sudden pressure release from exteriorly applied pressurized zone {2}
448.~.~.~.~ From extrusion zone using mechanical pressure


DEFINITION

Classification: 426/448

(under subclass 447) Processes involving the movement of a

moisture containing material through a zone and mechanically generating compressive forces and heat, and then releasing the compressive forces by moving the material to a zone of less pressure whereby moisture entrained within the treated material is vaporized to effect an expansion of the treated material.