Patent ID: 7959103
Filing Date: 2011-06-14
Classification: B29C,B65H

Abstract:
1. A film supply apparatus for use in a foam-in-bag dispenser, comprising: a film source support for supporting a film source; a film source driver; a film source drive transmission in driving communication with said film source driver; a film feed roller set positioned downstream with respect to film travel to said film source support, a film feed driver in driving communication with said film feed roller set; said film source drive transmission being in driving communication with said film source supported on said film source support to provide film web tensioning in the film being drawn by said film feed roller set, wherein said film source support includes a spindle for receiving a roll of film and said film source drive transmission includes a film source engagement member supported on said spindle, and wherein said film source engagement member includes a plurality of projections for engagement with a core insert of the film roll while supported on said spindle, wherein said engagement member includes an annular ring having a plurality of circumferentially spaced projections separated by clearance areas, and said film supply apparatus further comprising a film roll with film core having a drive transmission core insert, said core insert comprising an annular ring with a plurality of projections and clearance spaces therebetween which are arranged for rotational driving transmission upon meshing with said annular ring of said engagement member.