Abstract: Methods and apparatus for forming a web of heat shrunk plastic mesh are disclosed by the present application. In a method of forming a web of heat shrunk plastic mesh, a plurality of slits are cut in a plastic film. The cut plastic film is heated such that the plastic film shrinks and forms the heat shrunk plastic mesh. A machine for forming a heat shrunk plastic mesh includes a supply of plastic film, a cutting module, and a heat shrinking unit. The cutting module receives plastic film from the supply and cuts a plurality of slits in the plastic film. The heat shrinking unit receives the plastic film from the cutting module and heats the cut plastic film such that the plastic film shrinks and forms a plastic mesh.

Abstract: A container top and/or a fluid container includes a straw and a hole in the top or some other portion of the container. The straw has a first open end and a second open end. The first open end of the straw is disposed outside the container and the second open end of the straw is disposed inside the container. The straw frictionally engages the hole in the top or other portion of the container to provide a seal between the straw and the container.

Abstract: A web of expandable bags, a method for forming a web of expandable bags, and a method of forming an expandable bag containing a product is provided. The web of expandable bags includes a plurality of connected bags. Each bag includes a front ply and a back ply, and each bag is connected to an adjacent bag by a perforated connection. The front and back plies are joined to define a compartment that includes a first side, a second side, a third side that extends between the first side and the second side, and a bag opening that is configured to be closed. The front and back plies include a plurality of slits, and the plurality of slits are arranged in a plurality of spaced apart rows. The plurality of slits allows the compartment to expand in a direction that is perpendicular to the arrangement of the plurality of slits.

Abstract: In one embodiment, a packaging machine includes a mechanism for compressing one or more sides of the bag to expel excess air from an open top end of the bag. In one embodiment, a packaging machine supports a top portion of a bag and a bottom portion of the bag, such that the bottom portion of the bag is moved closer to the top portion of the bag as the bag is moved from a first location to a second location. The bags may be supported from below such that additional support is provided during compression of the bag to remove excess air.

Abstract: The present application relates to fluid filled pouches arranged in a row. The fluid filled units comprise elongate, heat sealable, face and back layers that are jointed together at a side edge, and by transverse seals to form pouches. The pouches are filled with fluid and are sealed at a split edge, defining fluid filled units. The fluid filled units can be separated along transverse lines of weakness. The transverse lines of weakness are defined by perforations, including perforations nearest the split edge that are shorter in length than perforations that are spaced further from the split edge and extend toward the side edge.

Abstract: A web for the manufacture of fluid filled units with a novel machine and process is disclosed. The web includes an elongate heat sealable, flattened plastic tube comprised of face and back imperforate layers. The layers are imperforately joined together along spaced side edges. The layers include superposed longitudinal lines of weakness disposed generally transversely midway between the side edges. The web has longitudinally spaced, pairs of transverse seals. Each transverse seal extends from a respective side edge to an end near but spaced from the longitudinal lines of weakness. The transverse seal pairs include transverse lines of weakness extending from one side edge to the other generally centrally of each seal in a longitudinal direction. The side edges, transverse seals and lines of weakness together delineating two oppositely oriented strings of pouches with each pouch having three imperforate sides and a centrally located fill opening at its fourth side.

Abstract: A process for forming fluid filled units is disclosed. In the process, a web having a series of side connected pouches are fed to an inflation station. The pouches are connected by a line of perforations. First perforations of the line of perforations that extend from an inflation opening of each pouch are shorter than second perforations of the line of perforations that extend from the first perforations toward a side edge of each pouch. The pouches filled with fluid and sealed to form fluid filled units.

Abstract: The present invention concerns a machine for converting a web of preformed pouches to dunnage units. The pouches are defined by transverse seals that extend from a remote edge to within a predetermined distance of an inflation edge. In a first embodiment, the machine includes a guide pin, a drive, a blower, and a sealing element. The guide pin is insertable between the transverse seals and the inflation edge. The guide pin defines a path of travel of the web. The drive moves the web along the path of travel. The blower is positioned with respect to the path of travel for inflating the preformed pouches. The sealing element is positioned to provide a longitudinal seal that intersects the transverse seals to close the preformed pouches and form inflated dunnage units. The disclosed examples of machines for converting a web of preformed pouches to dunnage units including various improvements to existing machines.

Abstract: The present invention concerns a machine for converting a web of preformed pouches to dunnage units. The pouches are defined by transverse seals that extend from a remote edge to within a predetermined distance of an inflation edge. In a first embodiment, the machine includes a guide pin, a drive, a blower, and a sealing element. The guide pin is insertable between the transverse seals and the inflation edge. The guide pin defines a path of travel of the web. The drive moves the web along the path of travel. The blower is positioned with respect to the path of travel for inflating the preformed pouches. The sealing element is positioned to provide a longitudinal seal that intersects the transverse seals to close the preformed pouches and form inflated dunnage units. The disclosed examples of machines for converting a web of preformed pouches to dunnage units including various improvements to existing machines.

Abstract: A web for the manufacture of fluid filled units with a novel machine and process is disclosed. The web includes an elongate heat sealable, flattened plastic tube comprised of face and back imperforate layers. The layers are imperforately joined together along spaced side edges. The layers include superposed longitudinal lines of weakness disposed generally transversely midway between the side edges. The web has longitudinally spaced, pairs of transverse seals. Each transverse seal extends from a respective side edge to an end near but spaced from the longitudinal lines of weakness. The transverse seal pairs include transverse lines of weakness extending from one side edge to the other generally centrally of each seal in a longitudinal direction. The side edges, transverse seals and lines of weakness together delineating two oppositely oriented strings of pouches with each pouch having three imperforate sides and a centrally located fill opening at its fourth side.

Abstract: A packaging machine utilizing side connected chains of open bags is disclosed. The machine has loading and closure sections which are moveable between operating and cleaning/service positions. A resistance heater subassembly is removeable to enable washdown.

Abstract: A web for the manufacture of fluid filled units with a novel machine and process is disclosed. The web includes an elongate heat sealable, flattened plastic tube comprised of face and back imperforate layers. The layers are imperforately joined together along spaced side edges. The layers include superposed longitudinal lines of weakness disposed generally transversely midway between the side edges. The web has longitudinally spaced, pairs of transverse seals. Each transverse seal extends from a respective side edge to an end near but spaced from the longitudinal lines of weakness. The transverse seal pairs include transverse lines of weakness extending from one side edge to the other generally centrally of each seal in a longitudinal direction. The side edges, transverse seals and lines of weakness together delineating two oppositely oriented strings of pouches with each pouch having three imperforate sides and a centrally located fill opening at its fourth side.

Abstract: A packaging machine utilizing side connected chains of open bags is disclosed. The machine has loading and closure sections which are moveable between operating and cleaning/service positions. A resistance heater subassembly is removeable to enable washdown.

Abstract: In one embodiment, a packaging machine includes a mechanism for compressing one or more sides of the bag to expel excess air from an open top end of the bag. In one embodiment, a packaging machine supports a top portion of a bag and a bottom portion of the bag, such that the bottom portion of the bag is moved closer to the top portion of the bag as the bag is moved from a first location to a second location. The bags may be supported from below such that additional support is provided during compression of the bag to remove excess air.

Abstract: A packaging machine utilizing side connected chains of open bags is disclosed. The machine has loading and closure sections which are moveable between operating and cleaning/service positions. A resistance heater subassembly is removeable to enable washdown.

Abstract: A process for forming fluid filled units is disclosed. In the process, a web having a series of side connected pouches are fed to an inflation station. The pouches are connected by a line of perforations. First perforations of the line of perforations that extend from an inflation opening of each pouch are shorter than second perforations of the line of perforations that extend from the first perforations toward a side edge of each pouch. The pouches filled with fluid and sealed to form fluid filled units.

Abstract: The present application relates to fluid filled pouches arranged in a row. The fluid filled units coprise elongate, heat sealable, face and back layers that are jointed together at a side edge, and by transverse seals to form pouches. The pouches are filled with fluid and are sealed at a split edge, defining fluid filled units. The fluid filled units can be separated along transverse lines of weakness. The transverse lines of weakness are defined by perforations, inlucidng perforations nearest the split edge that are shorter in length than perforations that are spaced further from the split edge and extend toward the side edge.

Abstract: A machine for the manufacture of inflated plastic dunnage and other fluid filled units is disclosed. In a disclosed and pictured dunnage embodiment, the machine includes a hollow shaft rotatably mounted on a frame. In the preferred embodiment the shaft is solid. With either embodiment a drive is operably connected to the shaft for causing the shaft to rotate about its axis and a drum mounted on the shaft to rotate with the shaft. The drum is in the form of a pair of closely spaced discs having perimetral, cylindrically contoured sealing surfaces for support and, in cooperation with driven metal belts, transport of a web being formed into dunnage units. Sets of heating and cooling shoes having spaced arcuate surfaces are complementally positioned adjacent the drum surfaces with the cooling shoes downstream from the heating shoes in the direction of dunnage formation rotation. A nozzle is mounted generally tangentially of the drum at a location midway between the discs.

Abstract: A packaging machine utilizing side connected chains of open bags is disclosed. The machine has loading and closure sections which are moveable between operating and cleaning/service positions. A resistance heater subassembly is removeable to enable washdown.

Abstract: A web for the manufacture of fluid filled units with a novel machine and process is disclosed. The web includes an elongate heat sealable, flattened plastic tube comprised of face and back imperforate layers. The layers are imperforately joined together along spaced side edges. The layers include superposed longitudinal lines of weakness disposed generally transversely midway between the side edges. The web has longitudinally spaced, pairs of transverse seals. Each transverse seal extends from a respective side edge to an end near but spaced from the longitudinal lines of weakness. The transverse seal pairs include transverse lines of weakness extending from one side edge to the other generally centrally of each seal in a longitudinal direction. The side edges, transverse seals and lines of weakness together delineating two oppositely oriented strings of pouches with each pouch having three imperforate sides and a centrally located fill opening at its fourth side.