Patent ID: 6113026
Filing Date: 2000-09-05
Classification: B29C,B65H,Y10S

Abstract:
In film processing apparatus of the type in which a web is unrolled from a supply roll, processed in a processing stage, and then re-rolled onto a take-up roll; and at least one bow spreader is disposed transversely in contact with a web take-up roll; the improvement wherein said bow spreader slidably and non-rotationally contacts said web, and includes first and second tubular portions and an upper portion, said upper portion having a web-facing surface adapted to contact said web and formed of a solid low-friction material; and wherein said first tubular portion and said second tubular portion are disposed side-by-side directly below said upper portion said second tubular portion being directly beneath said first tubular portion; and means provide a fluid flow into and out of said first and second tubular portions, respectively.