Patent ID: 7753242
Filing Date: 2010-07-13
Classification: B65H,F16C,Y10S

Abstract:
1. A suction roller system comprising: (a) a rotating suction roller having suction channels and a first face side and a second face side opposite to said first face side, said suction channels starting at the first face side, extending through the axial length of the suction roller and ending at the second face side; (b) a control head situated at the first face side of the suction roller, said control head comprising a suction zone and a ventilation zone separate from said suction zone; and (c) a closure plate provided on the second face side of the suction roller, said closure plate closing at the second face side those suction channels that are at the first face side actually in air-conducting connection with said suction zone of said control head and said closure elate having an opening which is placed to correspond with the ventilation zone, so that at the second face side additional ambient air may flow through said opening into those suction channels that are at the first face side actually in air-conducting connection with said ventilation zone of said control head.