Adjustable perforating roller for sheet material

Details Adjustable perforating roller for sheet material Adjustable perforating roller for sheet material

1994-01-25

1994-12-13

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

Blade type harvesting means or severing means

83660, 264156, 425194, 425290, 425DIG37, 492 36, B26F 124

Patent

active

053724941

ABSTRACT:
An apparatus for perforating packaging film which includes a cylindrical roller which is rotatable about a longitudinal axis. Bearings are mounted to each end of the roller to facilitate rotation. A number of longitudinal, circumferentially spaced grooves are formed in the outer surface of the roller. Perforation pin holders are removably and adjustably mounted in the grooves. The perforating pins are removably or permanently mounted on the holder.

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patent: 4116594 (1978-09-01), Leanna et al.
patent: 5173313 (1992-12-01), Sato et al.

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