Patent ID: 7386969

Claim:
A foam-in-bag dispenser system, comprising: a film supply support; a film feeding device for drawing film from a film source supported on said film supply support; a dispenser having a foam material outlet; a bag forming apparatus which forms bags for receiving the foam material output of the dispenser, and wherein said dispenser comprises a mixing module which receives a foam precursor chemical and a dispenser housing which supports said mixing module and is in contact with film being drawn past said housing by said film feeding device, and said housing being dimensioned as to present a smooth, wrinkle avoidance contact surface over all areas of film contact with said housing, and wherein said housing is positioned relative to film travel such that opposing, interior web surfaces of the film diverge to opposite sides of an upstream end of said housing and, while in a diverged and spaced apart state, said opposing, interior web surfaces slide, in contact, along respective planar front and back side walls of said housing, and wherein said dispenser housing is positioned such that an interior edge region of the interior web surfaces runs, while said opposing, interior web surfaces are in a diverged and spaced apart state, along and in contact with said planar front and back side wall surfaces of the housing.