Film cleaner

Details Film cleaner Film cleaner

1986-07-09

1987-11-17

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15 77, 15100, 15374, 134 64P, 134122P, B08B 1102, A46B 1302

Patent

active

047063254

ABSTRACT:
An elongated film strip is cleaned by two pairs of rotary brushes with soft bristles contacting opposite sides of the film strip traveling between the two pairs of brushes. Each pair of brushes is placed at an angle to the direction of film travel for brushing dirt particles away from the center of the film. The top pair of brushes and the bottom pair of brushes are arranged so that one brush in each pair brushes the particles from the central region of the film toward one edge of the film, while the other brush on the same side of the film brushes particles away from the central region of the film toward the other edge of the film. The brushes avoid contact with perforations on the edge of the film which would result in particles lodged in the perforations being brushed toward the central region of the film. A separately electrically conductive vacuum tube contacts each brush after the brush contacts the film. The vacuum tube discharges static electricity from the brush and vacuums the discharged particles away from the brush.

REFERENCES:
patent: 3470576 (1969-10-01), Troia
patent: 3593642 (1971-07-01), Beicheiraz et al.

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