Patent ID: 6402853
Filing Date: 2002-06-11
Classification: B08B

Abstract:
A method of cleaning residue of a material from equipment used in processing the material, the method comprising the steps of:a) providing a chamber having an interior and having a heater disposed in said interior; b) inserting the equipment containing said residue to be cleaned in said interior of said chamber; c) heating the equipment to a first temperature by heating said interior of said chamber with said heater; d) cooling the equipment to a second temperature by cooling said interior of said chamber with a cryogen, wherein the second temperature is different from the first temperature such that the equipment is exposed to each of said first and second temperatures at least twice; e) agitating the equipment during steps (c) and (d) to loosen the residue of the material from the equipment so as to clean the residue of the material from the equipment; and f) removing the equipment from said interior of said chamber.