B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/43, 18/746
B05C 3/18 (2006.01)
Patent
CA 1117753
ABSTRACT OF THE DISCLOSURE An extrusion coater for high viscosity, thin coatings of the hot melt type, includes an elongated slot coating head across which the web to be coated is advanced under tension and includes a lead-on lip at the slot plus a fixed, unyieldable, lead-off lip having an elongated, rotatable, cylindrical rod deeply seated for about two thirds of its circumference therein and unyieldably supported on a fixed axis of rotation. A yieldably mounted, press roll with a rubber like surface forms a pressure nip with the smooth hard unyieldable surface of the rod and the rod is rotated inter- mittently, or continuously by power means depending on the amount of impurities in the coating media. The rod rotation is not for metering purposes but for spreading wear while overcoming any streaking.
322882
Bolton-Emerson Inc.
Fetherstonhaugh & Co.
LandOfFree
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