Patent ID: 6027337
Filing Date: 2000-02-22
Classification: D01F,F24F,F27B,F27D

Abstract:
An oven comprising,an oven chamber adapted to treat a fiber or web being passed therethrough, said oven chamber having a top, a bottom, two sides and two ends, at least one of said ends having a first opening and a second opening for said fiber or web to pass therethrough for treatment in said oven chamber, said first opening being disposed above said second opening, anda first nozzle adjacent said first opening, a second nozzle adjacent said second opening, each of said first and second nozzles being effective for discharging air from an air flow pathway into said oven chamber and forming an air curtain at the opening to which it is adjacent, said air curtains cooperating to substantially prevent a chimney effect between said first and second openings.