Patent ID: 6165410
Filing Date: 2000-12-26
Classification: B23K

Abstract:
A downdraft exhaust cutting table, comprising:an elongated, horizontally disposed, cutting table having opposite ends and opposite sides;a cutting torch assembly positioned over said cutting table and being movable along the length thereof to cut material positioned on said cutting table;an elongated exhaust duct positioned beneath said cutting table running parallel to the length of said cutting table;said exhaust duct having a plurality of horizontally spaced-apart exhaust openings formed therein;said cutting table being divided into first and second cutting zones running parallel to the length of said cutting table, with said exhaust duct positioned between said first and second cutting zones;means for exhausting air from within said exhaust duct;a normally closed movable damper adjacent each of said openings and being movable between open and closed positions;each of said movable dampers, when in its said open position, permitting the passage of fume laden air and smoke therethrough into said exhaust duct;and means for opening one or more dampers below said cutting torch assembly so that fume laden air and smoke from the vicinity of said cutting table will be drawn into said exhaust duct and exhausted therefrom.