Patent ID: 6945525
Filing Date: 2005-09-20
Classification: B65H

Abstract:
1. In a sheet feeding apparatus for feeding a stack of sheets in a direction of movement to a process station, comprising: a sheet tray for holding said stack of sheets; an air plenum, positioned above said stack of sheets, for picking up a sheet from said stack of sheets when a vacuum force in said air plenum; a paper fluffer for blowing a constant volume of air between individual sheets in said stack to produce a fluffed stack of sheets, said paper fluffer having means for adjusting air pressure between individual sheets, said paper fluffer includes a nozzle including an outlet port for directing air into said stack, a nozzle dam pivotality mounted, relative to said outlet port, for increasing or decreasing air pressure between individual sheets, in response to the weight of an individual sheet in said stack of sheets being fluffed.