Patent ID: 6648198
Filing Date: 2003-11-18
Classification: B65H,D21G

Abstract:
A vacuum belt conveyor, comprising:an air-pervious endless belt; a first pulley disposed at an upstream end of said conveyor and a second pulley disposed at a downstream end of said conveyor, said first pulley and said second pulley configured to guide said air-pervious endless belt, said air-pervious endless belt having a conveying run from said first pulley to said second pulley and a return run from said second pulley to said first pulley; a plate having openings which are connected to a source of negative pressure, said plate being in contact with said air-pervious endless belt over at least a portion of said conveying run; and a curved perforated guiding surface being connected to the source of negative pressure, said guiding surface proximate to said upstream end, said air-pervious endless belt being in contact with said guiding surface.