Abstract: Apparatus for cleaning a sheet or web while it is being fed. Upper and lower ionized air cleaner units are provided, having spaced, parallel plates providing a throat between which the sheet or web is passed. The throat entry includes diverging flanges, as does the throat exit. Each unit includes first and second spaced rows of ionized air blower holes extending transversely of the sheet or web; between these rows is an air suction slot. The ionized air generator includes a pair of spaced channel, each having its open side closed by a plate having the blower holes therein. An ionized air generator with air boost extends axially within each channel, and has ionizing points extending into the blower holes in the plate. The suction slot is provided between the two channels.A linearly extending hood overlies the suction slot, having at an end thereof a suction outlet.

Abstract: A static neutralizer which emits ions without emitting light to the environment. The static neutralizer includes a body of insulating light absorbing material, having a cavity therein, with points of ion emitters located in the cavity. A passage leads from the cavity to the exterior, permitting flow of ions from the body and preventing passage of light from the ionizing points to the exterior. A metal sleeve surrounds the insulating material body with a peripheral edge of the metal band and the ionizing points preferably lying in a common plane. A source of electric potential, preferably alternating, is connected to the ion emitters, and the metal sleeve is connected to ground. Preferably, the connections are provided by a shielded cable having an inner conductor connected to the ion emitters, an outer, flexible woven wire shield connected to the metal band, and a light impervious, insulating layer on the exterior of the woven shield.