Abstract: A plastic film bag assembly includes a bag having front and back walls joined together and defining an opening leading to a cavity. A header portion extends from the back wall for supporting the bag on a structure. A severance line extends across the header and includes tear sections extending inwardly from each of the header side edges. The severance line also includes support sections adjacent and inwardly of the tear sections. The support sections have a strength per unit length of severance line which is greater than the tear sections strength per unit length of severance line whereby, when severing the bag away from the header, a greater force is required for severing along the severance line support sections than the force required for severing along the tear sections. In use, the bag front wall lip is grasped and pulled away from the header for separating complementary profiles and opening the bag. The header tear sections are severed until reaching the support sections.

Abstract: A plastic film bag assembly includes a bag having front and back walls joined together and defining an opening leading to a cavity. A header portion extends from the back wall for supporting the bag on a structure. A severance line extends across the header and includes tear sections extending inwardly from each of the header side edges. The severance line also includes support sections adjacent and inwardly of the tear sections. The support sections have a strength per unit length of severance line which is greater than the tear sections strength per unit length of severance line whereby, when severing the bag away from the header, a greater force is required for severing along the severance line support sections than the force required for severing along the tear sections. In use, the bag front wall lip is grasped and pulled away from the header for separating complementary profiles and opening the bag. The header tear sections are severed until reaching the support sections.

Abstract: A plastic film bag assembly includes a recloseable plastic film bag made up of a front wall and back wall joined together and having complementary detachably attachable zipper profiles at the bag opening. A lip extends from the front wall above the zipper profiles. A header extends above the back wall above the zipper profiles. A hole is provided through the header at a distance from the header perimeter edge and defining a severable header portion between the hole and the perimeter edge. A slit or perforation may be provided at the severable header portion for controlling the strength thereof. The bags are supported on a stop member which extends through the header holes. The bags are manually individually dispensed by gripping the lip and pulling for at least partially separating the zipper profiles and, thereafter, causing the severable header portion to be severed and thereby causing the bag to be ripped off of the stop member.

Abstract: Snap and fill plastic film bags and a process of opening and placing product in the plastic film bags. A reclosable zipper is provided at the opening of the bag leading to the bag cavity. A lip extends from the front wall above the reclosable zipper and a header portion extends from the back wall above the reclosable zipper. A part of the header portion is supported on a support structure for carrying the bag and a perforation is provided on the header portion above the reclosable zipper. The bags are initially closed and, during the process of opening and placing product therein, the operator grips the bag front wall lip and by pulling the lip away from the support structure, the complementary zipper profiles are separated and, thus, opening the bag. Further pulling of the lip from the support structure causes the severing of the bag from the header portion at the perforation.

Abstract: An apparatus and method for perforating a plastic film fleader section connecting together a plurality of plastic film bags and forming a pack of saddle bags. The saddle bags are carried on a block with the header on the block and the bags draped thereover. The block is in sliding engagement with a track and is selectively moved in position in the apparatus. A pair of pivotally connected arms are selectively pivotally moved in contact with the plastic film bags pulling the bags generally away from the header and causing the header to become taut. A pair of perforation blades are forced toward the carrying block and through the header simultaneously creating two perforation lines, one line on each side of the header.

Abstract: Snap and fill plastic film bags and a process of opening and placing product in the plastic film bags. A reclosable zipper is provided at the opening of the bag leading to the bag cavity. A lip extends from the front wall above the reclosable zipper and a header portion extends from the back wall above the reclosable zipper. A part of the header portion is supported on a support structure for carrying the bag and a perforation is provided on the header portion above the reclosable zipper. The bags are initially closed and, during the process of opening and placing product therein, the operator grips the bag front wall lip and by pulling the lip away from the support structure, the complementary zipper profiles are separated and, thus, opening the bag. Further pulling of the lip from the support structure causes the severing of the bag from the header portion at the perforation.

Abstract: A suspendable bag adapted for suspending on a structure and opening, filling, and severing away therefrom. A suspension wall extends from the bags and includes suspension holes adapted to receive suspension pegs located on the structure. A score line is provided below the suspension holes and a support hole is provided below the score line and above the bag. The support hole is adapted to receive a support bag located on the structure. During operation, the support hole, in conjunction with the support peg, allows the opening of a reclosable zipper at the mouth of the bag by only pulling on a lip connected to the front wall of the bag. The support hole, in conjunction with the support peg, further supports the back portion of the bag while the bag is being filled with various products.

Abstract: A method and apparatus for use in extruding a plastic film with integral interlocking closure members. A flat plastic film and integral closure members are extruded through a single die opening. An air knife is used to push the extruded plastic film towards a chill roll and aids in the cooling of the film. The chill roll is rotatably driven and substantially cools the flat portion of the plastic film. Nozzles direct chilled air at the closure members. Cooling shoes are placed in close proximity to the extruded closure member and cool down and solidify the closure members. The cooling shoes are also used for shaping the closure members. The cooling shoes may be located adjacent the chill roll or adjacent a backing plate.