Patent ID: 6051053
Filing Date: 2000-04-18
Classification: B01D,C23C

Abstract:
A method for operating a trapping device comprising the steps of:providing an exhaust path for evacuating a spent gas from a hermetic chamber through a vacuum pump;providing a cleaning path adjacent to said exhaust path;placing a trap section in said exhaust path for trapping component substances in said spent gas by condensing said component substances on said trap section, said trap section comprising a shaft portion connected to a drive means and a baffle portion fixed to said shaft portion;transposing said trap section to communicate with said cleaning path to perform a regeneration operation on said trap section by washing with a cleaning solution; andhermetically sealing a housing crossing over said exhaust path and said cleaning path for defining a trap chamber and a cleaning chamber therein, said trap section being movable between said trap chamber and said cleaning chamber.