Perforation mechanism for a foam-in-bag cushion and method...

Details Perforation mechanism for a foam-in-bag cushion and method... Perforation mechanism for a foam-in-bag cushion and method...

B - Operations, Transporting

26

F

B26F 1/10 (2006.01) B26F 1/24 (2006.01) B29C 44/18 (2006.01) B29C 44/34 (2006.01) B65B 43/08 (2006.01) B65B 61/02 (2006.01) B26D 3/08 (2006.01) B26D 5/02 (2006.01) B26D 7/20 (2006.01)

Patent

CA 2486038

A perforation apparatus particularly useful for creating perforations in a foam-in-bag cushion and methods of using such apparatus are provided. The perforation apparatus is comprised of a frame, a main shaft mounted in the frame so as to be rotatable about a central axis, at least one needle roller coupled to the main shaft such that rotation of the main shaft moves the needle roller through a predetermined arc of motion out of and into an operative position adjacent to and perforating a plastic film advancing past the needle roller, and an actuator coupled with the main shaft and operable to rotate the main shaft so as to move the needle roller. Optionally, the apparatus is further comprised of at least one backup roller. Methods of preparing and perforating a foam-in bag cushion using the perforating apparatus are also provided.

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