Abstract: The film sealing and wrapping machine with a rotary cut and seal jaw is provided. The rotary cut and seal jaw has an internal sliding mechanism which provides for smooth and quiet operation. The rotational speed of the jaw may be varied to increase through put and to provide for a title bag around products. The rotary cut and seal jaw may comprise a seal bar and pressure pad may both be spring loaded to self align the seal bar and pressure pad during the sealing and cutting process. Lastly, a gap defined by a belt disposed upstream and downstream of the seal bar and pressure pad may be mechanically linked to the pressure pad through a control carriage.

Abstract: A heater for a radio frequency (RF) antenna and method for using the same are disclosed. In one embodiment, an antenna comprises a physical antenna aperture having an array of RF antenna elements; and a plurality of heating elements, each heating element being between pairs of RF elements of the array of RF elements.

Abstract: Described herein is a reusable, multi-purpose bag, comprising a flexible, resiliently deformable body comprising a first material and a second material. The first material has a first degradation temperature and an absorption ratio of at least two to one of absorbed water weight to bag weight. The first material forms an anterior panel and a posterior panel, and the anterior panel is coupled to the posterior panel to define a cavity therebetween. The second material has a second degradation temperature that is lower than the first degradation temperature, and at least a portion of the anterior panel is bonded to at least a portion of the posterior panel by the second material.

Abstract: A vacuum and sealing appliance comprises a heat sealing element for sealing a container during a sealing cycle. A controller controls the temperature of the heat sealing element during the sealing cycle based on a signal from a temperature sensor that senses the real-time temperature of the heat sealing element. A seal indicator light is provided which is lighted during the sealing cycle and extinguished at its completion. The signal from the controller energizes the heating element for a time to heat the sealing element to a pre-determined temperature for sealing the container and initiates a dwell time corresponding to cooling the heating element after sealing the container. Values of the real-time temperatures of the heat sealing element and values of the sealing times and the dwell times that correspond to the values of the real-time temperatures of the heat sealing element are stored in a look-up table.

Abstract: Methods for preparing and using multiple chambered freezing bags containing biological fluid in the chambers are disclosed.

Abstract: An apparatus for closing and sealing a preformed polypropylene bag after a bale has been inserted therein as the bale and bag traverse along a longitudinal line of travel. Left and right rotatable side flaps fold the left and right bag closure flaps onto the bale. A bottom rotatable fold plate partially folds the bag bottom closure flap and a top fold bar is extended and folds the top bag closure flap onto the bale. The bottom fold plate then folds the bag bottom closure flap onto the bale. The top and bottom bag closure flaps are sandwiched between the rotatable side flaps and the bottom fold plate and over a slack bar therebetween forming a slack portion. A heating assembly directs heat to the slack portion melting the polypropylene and a press plate is extended to the slack melted portion thereby fusing the bag closure flaps together.

Abstract: A vacuum sealing machine includes a base assembly having an upper base portion removably secured to a lower base portion and displacing relative to the lower base portion from a closed position to an open position. Two or more heating strips are disposed on the lower base portion, and each of the heating strips is adapted to seal a portion of an open end of a sealable bag disposed between the lower and upper base portions. At least one securement feature is disposed on the upper base portion and is adapted to apply pressure to a portion of the open end of the inserted sealable bag when the sealable bag is sealed by at least one of the heating strips. In addition, A control unit including at least one microprocessor and a memory unit is in communication with each of the two or more heating strips.

Abstract: A medicament-packing unit contains a sheet feeder, a medicament-feeding hopper and a heat-sealing section. The sheet feeder feeds a packing sheet, folded into two in a longitudinal direction, to the heat-sealing section. The medicament-feeding hopper provides a medicament on the packing sheet fed by the sheet feeder. The heat-sealing section seals the packing sheet to pack the medicament provided on the packing sheet. The heat-sealing section contains a horizontal sealing roller, a first drive motor, a vertical sealing roller, a second drive motor, and a motor controller. The horizontal sealing roller seals the packing sheet in a horizontal direction. The first drive motor drives the horizontal sealing roller. The vertical sealing roller seals the packing sheet in a vertical direction. The second drive motor drives the vertical sealing roller. The motor controller controls the first drive motor and the second drive motor.

Abstract: A packaging apparatus including a cutting device, the cutting device comprising an elongate holder, an elongate knife having an elongate cutting edge, and a heat seal device located on the elongate holder on opposed sides of the knife, the heat seal device comprising a pair of elongate pressure strips projecting outwardly from the elongate holder, each pressure strip extending along a respective side of the knife, wherein each pressure strip comprises an elongate bar mounted for sliding movement in a respective slot in the elongate holder, the sliding movement varying the distance an outer edge of the elongate bar projects from the elongate holder, and a biasing element within the respective slot, the biasing element engaging an inner edge of the elongate bar and arranged to bias the elongate bar outwardly of the slot. A packaging method is also disclosed.

Abstract: Pet food bags, and methods of making the same, contain a seal that resists air exchange more than conventional bags thereby protecting nutritional ingredients that are susceptible to oxidation.

Abstract: A flexible bag for food storage includes an oxygen remover, a water impermeable membrane, a frangible seal, and walls having low oxygen transmission. The wall comprises two facing sheets, and at least one sheet is a multilayer sheet having an inner layer of polymer enabling the facing sheets to be joined by melt sealing at less than 95° C. The bag may be sealed at location other than the frangible seal. A machine-readable image (e.g. QR code) may direct a computer or phone to a video on the Internet that shows re-sealing the bag at a location separate from the frangible seal to isolate the storage region from air surrounding the bag.

Abstract: A sealing machine with a transportation structure has: a seal unit including an upper transporting set, a lower transporting set, a heating set, and a driving motor. The upper transporting set has a first conveying member, the lower transporting set has a second conveying member driven. The upper transporting set has an upper roller, and the lower transporting set has a lower roller for matching with the upper roller. The heating set has two heating rails and at least one electric bar, and each heating rail horizontally extends at a convey stork of the first conveying member and the second conveying member. Between the two heating rails is defined a slot. An outlet end of the slot corresponds to a pressing surface of the upper roller and the lower roller, the each heating rail has a groove so as to receive the at least one electric bar.

Abstract: A system including multiple bags each having a first adhesive material on a first panel, and second adhesive material on a stepped construction of the bag, and a third section of each bag being free of adhesive, further including a hot air manifold along which the bag is conveyed after the bag has been filled with contents and closed, which heats the first adhesive material and the second adhesive material to their adhesive states; a section of the hot air manifold along which the third section free of adhesive is conveyed, which minimizes adhesive contamination; a blade to bias the stepped construction of the bag to follow along the manifold; and a trailing end of the blade to fold the bag along its third section without displacing or expelling adhesive from the third section, which minimizes adhesive contamination of surfaces of the bag.

Abstract: There is described a heating induction sealing device for forming a seal in a packaging material comprising an electrically conductive element and advancing, in use, along a first direction; the sealing device comprises at least one inductive element; inductive element comprises a first and second leg within which alternate currents flow, in use, in opposite direction; first leg is configured to induce, in use, a first portion of an eddy current within an area to be sealed of packaging material; second leg faces first leg along a second direction; second leg is configured to induce, in use, a second portion of eddy current within area to be sealed of packaging material; first and second leg have a length in a third direction parallel, in use, to first direction and transversal to second direction; first and second leg are nonsymmetrical with respect to third direction, so that seal is formed as continuous along second direction.

Abstract: This disclosure relates to foiiuing food packages with a lap seal. A continuous, peelable hermetic seal is formed by activating a conductive element to emit an electrical impulse while contacting the overlap region of a pouch. The overlap is sealed by the heat generated from the activation of the conductive element, for example a wire. The conductive element is placed longitudinally along the overlap area of the pouch, which results in a sealed line. A second parallel sealed line may also be made to add redundancy, thereby better sealing the pouch. The disclosed method results in a package with an unsealed flap between first seal line and the film edge that allows for easy opening of the pouch.

Abstract: A container for a compressible article is disclosed, wherein the container includes first and second opposed sides having a first length, a first pair of flaps or edge attached to an end of the first and second opposed sides defining an end of the container, third and fourth opposed sides capable of having a second shorter length; and a second pair of flaps or edges attached to the third and fourth sides, the second pair of flaps having a fold line approximately aligned with the end of the container.

Abstract: The invention relates to a method for the portioned packaging of a food mass that is at least substantially incompressible, in particular of processed cheese, and that is filled as a flowable mass into a tubular sleeve comprising a thermoplastic plastic film, wherein the thermoplastic plastic film of the sleeve enclosing the food mass is deformed in a mold into individual units each defining a portion by forcing the food mass out of sealing areas, such that the units arranged one behind the other are delimited with respect to each other by means of sealing in the sealing area and are subsequently separated from one another.

Abstract: This invention relates to a method for sealing film layers to form a sealed portion and a notch within the sealed portion, comprising: providing film layers between sealing jaws comprising a heat sealing element, with a sealing face having a length and a protrusion extending partly along the length of its sealing face; inducing a temperature gradient along the of sealing face length, wherein the temperature proximate to the protrusion is higher than at a distance from the protrusion; closing the jaws and simultaneously clamping the film at a location adjacent to the sealing face; holding the jaws closed for a period of time; and opening the jaws to release the layers of film.

Abstract: The present invention relates to multilayer packaging films with at least one layer containing a thermoplastic, where a coating containing at least one silicone has been applied on that side of the packaging film that faces towards the product requiring packaging, and to use of these, and to packaging processes using the packaging films mentioned.

Abstract: A device for deflecting a loose fill product from the seal zone of a bag and sealing the bag is provided. The device includes a product stopper. The product stopper is adjacent to the sealing element of a bagging machine. The product stopper includes a mount that mounts the product stopper to a bagging machine and a pinching element that pinches a bag proximal to a sealing zone before the bag is sealed by the sealing element at the sealing zone. In one embodiment, the pincher includes a spring loaded mechanism for pinching the bag proximal to the sealing zone. In another embodiment, the pincher includes an air assist mechanism for pinching the bag proximal to the sealing zone.

Abstract: An apparatus adapted for sealing bags includes a hot air manifold along which a bag is conveyed after the bag has been filled with contents and closed. The manifold includes a hot air chamber having first air passages transmitting hot air under pressure to heat a portion of a first adhesive layer on the bag to an adhesive state, and second air passages transmitting hot air under pressure to heat a second adhesive layer on the bag to an adhesive state. A hot air deflector covers selected second air passages transmitting the hot air, wherein the apparatus is adapted for sealing woven polymeric bags with the adhesive layers. The hot air deflector is moveable to a position uncovering the selected second air passages to increase the amount of hot air, wherein the apparatus is adapted for sealing multi-wall paper bags.

Abstract: A process for closing mesh bags, in which a longitudinal portion of constricted mesh is compressed together with a portion of at least one plastic strip provided with a width greater than that of the constricted mesh such that respective side bands of the strip project on both sides of the constricted mesh, includes the operations of introducing in a die the compressed longitudinal portions of strip and mesh such that the mentioned side bands are bent towards the constricted mesh. The bent side bands of the strip are folded over the constricted mesh the materials forming the folded strip and the constricted mesh melt. One or several attachment sections between the folded strip and the constricted mesh along the compressed portions of the mesh and of the strip are determined.

Abstract: A method and apparatus for sealing a bag made of a polymeric material by applying heat activated layers on different portions of the bag, wherein the first adhesive layer and the second adhesive layer have respective heat activation temperatures below the softening point temperature of the polymeric material; after creasing the bag along a fold line, applying heat at a temperature below the softening point temperature of the polymeric material to activate the first adhesive layer and the second adhesive layer to adhesive states after the bag has been filled with contents; and folding the bag to form an adhesive-to adhesive seal by contact between the heat activated first adhesive layer and the heat activated second adhesive layer.

Abstract: A system for reducing oxygen in a package of produce product using a lance manifold. The lance manifold has a first end adapted to receive an input gas flow and a second end adapted for placement in a partially-enclosed cavity containing the produce product. The second end of the lance manifold includes a plurality of exit ports adapted to produce an output gas flow and a sampling port for taking an air sample from the partially-enclosed cavity. The system also includes an oxygen analyzer for detecting oxygen content of gas inside the partially-enclosed cavity using the sampling port. The system is configured to produce an output gas flow with the following properties: a substantially oxygen-free composition; a flow rate of at least 100 standard cubic feet per hour (SCFH); and a flow direction substantially 90 degrees to a cavity opening of the partially-enclosed cavity.

Abstract: A system is provided for filling and sealing bags and is especially useful with woven polybags formed of thermoplastic material. The system includes a plastic welder having a folding device for folding over a portion of the filled bag which is sealed by a welding tip and pinch rollers. The welding tip may be moved between welding and non-welding positions based on a bag sensor or timer. A contact prevention member prevents the welding tip from contacting and damaging a coating on a portion of the bag. The system is configured to form a substantial seam without using hot melt adhesive.

Abstract: The embodiments of the invention relate to a method for creating a force for a welding jaw of a vertical tubular bag machine. The welding jaw is moved back and forth along a path to strike a second welding jaw moving in the opposite direction. A tubular film is compressed between the second jaw and at least one sealing surface of the welding jaws, to weld the tubular film by ultrasonic vibrations applied thereto via the sealing surface at an applied pressure under a sealing force (Fs) within a sealing time (ts). The sealing force (Fs) is predetermined by a control unit such that the sealing force (Fs) runs along a sealing force curve within the sealing time (ts). The sealing force curve has a first relative sealing force maximum (Fs1) and at least one second relative sealing force maximum (Fs2), wherein (Fs1) is lower than (Fs2).

Abstract: A system for controlling the strength of seals imparted to workpiece layers by a sealing roll and an anvil roll, the sealing roll and the anvil roll arranged on opposing sides of a conveyed web of workpiece layers, heating elements provided on at least one of the rolls, temperature sensors provided on the at least one of the rolls, and a controller in communication with the sensors and in operable communication with the heating elements. The sealing roll includes a textured sealing surface, the textured sealing surface being divided into a plurality of regions, the texture of a first of the regions being different from a texture of a second of the regions. By controlling the temperature of the respective regions, detrimental effects of anvil wear on the strength of the seal imparted to the workpiece layers may be offset, increasing the service life of rolls.

Abstract: The disclosure relates to a method for sealing packaging material and a chamber machine or a belted chamber machine for implementation of the method for pre-heating at least one sealing bar to a first temperature in order to facilitate the escape of liquid, preferably

Abstract: A vacuum and sealing appliance comprises a heat sealing element for sealing a container during a sealing cycle. A controller controls the temperature of the heat sealing element during the sealing cycle based on a signal from a temperature sensor that senses the real-time temperature of the heat sealing element. A seal indicator light is provided which is lighted during the sealing cycle and extinguished at its completion. The signal from the controller energizes the heating element for a time to heat the sealing element to a pre-determined temperature for sealing the container and initiates a dwell time corresponding to cooling the heating element after sealing the container. Values of the real-time temperatures of the heat sealing element and values of the sealing times and the dwell times that correspond to the values of the real-time temperatures of the heat sealing element are stored in a look-up table.

Abstract: An apparatus for transverse sealing of a packaging tube, filled with products, in order to form bag packages, has a delivery conveyor for delivering the packaging tube, a removal conveyor for carrying the bag packages away and a transverse sealing unit engaging an interstice between these two conveyors. Means is provided for supporting the bag packages at least in part at the transition through this interstice. This means for supporting the bag packages is a supporting base, which reaches beneath the bag packages from two diametrically opposed sides and both supports the bag packages and transports them onward.

Abstract: A medicament-packing unit contains a sheet feeder, a medicament-feeding hopper and a heat-sealing section. The sheet feeder feeds a packing sheet, folded into two in a longitudinal direction, to the heat-sealing section. The medicament-feeding hopper provides a medicament on the packing sheet fed by the sheet feeder. The heat-sealing section seals the packing sheet to pack the medicament provided on the packing sheet. The heat-sealing section contains a horizontal sealing roller, a first drive motor, a vertical sealing roller, a second drive motor, and a motor controller. The horizontal sealing roller seals the packing sheet in a horizontal direction. The first drive motor drives the horizontal sealing roller. The vertical sealing roller seals the packing sheet in a vertical direction. The second drive motor drives the vertical sealing roller. The motor controller controls the first drive motor and the second drive motor.

Abstract: A method and system for ultrasonic sealing of food product packaging is provided. The ultrasonic sealing system preferably includes a food product packaging-positioning system that delivers food product packaging and food product into direct on-item-packaging forming box. The direct on-item-packaging forming box then receives the food product packaging and forms it directly around the supplied food product forming a partially packaged food product. The partially packaged food product is then ultrasonically edge sealed around the food product by an ultrasonic food product packaging fin-sealing unit forming a partially sealed food product packaging. The partially sealed food product packaging then enters a food product packaging end-sealing unit which ultrasonically seals and crimps the ends of the food product packaging resulting in a fully packaged and ultrasonically sealed food product.

Abstract: A method of forming and filling the pouch includes the steps of forming each panel and joining two panels by sealing together the side edges and lower edge. The method also includes the steps of opening the pouch and filling the pouch with the product. The method further includes the steps of closing the filled pouch by forming a first closing seal extending along an upper edge of the pouch a predetermined length from the upper edge, such that there is no dead space inside the pouch between the product and the first closing seal, and forming a second seal between the first closing seal and the upper edge thereby trapping the product between the first closing seal and the second closing seal, and finishing the pouch.

Abstract: A package material with a tamper evident feature and methods of manufacture thereof, are disclosed herein. The package comprises a colored primer or lacquer coating applied along a portion of a seal and further comprising a peelable sealant. When opened the peelable sealant is separated from the portion of the seal containing colored primer or lacquer and removes a section of the coating, thus providing a visual indication that the package has been opened.

Abstract: A method of severing and sealing a film formed of a thermoplastic material includes heating a cutting edge implement to a temperature sufficient to melt but not to burn the thermoplastic material, feeding a plurality of layers of the film between the cutting edge implement and an opposing surface, and moving the cutting edge implement, which is preferably a supported hot wire, and the opposing surface relative to one another to pinch the plurality of layers of film therebetween. Thereafter, any relative lateral movement between the cutting edge implement, the film, and the opposing surface is suspended, while the cutting edge implement and the opposing surface are relatively biased together with the plurality of layers of film pinched therebetween, until the cutting edge implement cuts through the plurality of layers of film, contacts the opposing surface, and seals the plurality of layers of film together.

Abstract: The invention pertains to a device and a method for sealing a package with a sealing seam by partially fusing together the packaging material, and a supply system for protective gas. The device includes a gas supply for inert gas and an inert gas outlet opening, wherein the gas supply for inert gas and the inert gas outlet opening are arranged such that an inert gas current resulting therebetween flows around the sealing seam during sealing of the package. The method provides a flow of inert gas around the sealing seam during sealing of the package.

Abstract: There is disclosed a flowable material packaging film comprising at least a resin blend of (a) from about 33 wt % to about 80 wt % of at least one ethylene-C4 to C10-?-olefin interpolymer having a melt index of from 0.4 to 1.5 g/10 min (190° C., 2.15 kg), a density of from 0.900 to 0.916 g/cc; and (b) from about 67 wt % to about 20 wt % of at least one heterogeneous interpolymer of propylene with ethylene or ethylene and butene comprising from about 71 mol % to about 86 mol % propylene and from about 29 mol % to about 14 mol % ethylene or ethylene and butene, the interpolymer having an overall weight average molecular weight (MW) of at least about 400,000, a xylene soluble phase of not less than 30% (wt), with the xylene soluble phase having a MW of at least about 275,000 and said heterogeneous interpolymer of polypropylene has a density of from 0.875 to 0.91 g/cc; and the film has a Hot Tack Initiation Temperature in the range of from about 100° C. to about 140° C.

Abstract: A system for controlling the strength of seals imparted to workpiece layers by a sealing roll and an anvil roll, the sealing roll and the anvil roll arranged on opposing sides of a conveyed web of workpiece layers, heating elements provided on at least one of the rolls, temperature sensors provided on the at least one of the rolls, and a controller in communication with the sensors and in operable communication with the heating elements. The sealing roll includes a textured sealing surface, the textured sealing surface being divided into a plurality of regions, the texture of a first of the regions being different from a texture of a second of the regions. By controlling the temperature of the respective regions, detrimental effects of anvil wear on the strength of the seal imparted to the workpiece layers may be offset, increasing the service life of rolls.

Abstract: A liquid containing bag includes a liquid filling opening part having a tube configuration through which an inside of the liquid containing bag is filled with liquid. The liquid filling opening part is melt-sealed from directions which face each other in a part of the liquid filling opening part. The part which is melted has a non-symmetrical configuration.

Abstract: A package having two or more compartments that is made from a laminated flexible film is disclosed. The compartments store products having different requirements for in relation to contact of oxygen and other gases from outside the compartments or release of oxygen and other gases generated by the products in the compartments. The laminated film has different OTR or GTR levels in different sections of the film to suit the different requirements for oxygen and other gases of the products in the compartments. A method of manufacturing the package is also disclosed.

Abstract: A method and apparatus for sealing a bag made of a polymeric material by applying heat activated layers on different portions of the bag, wherein the first adhesive layer and the second adhesive layer have respective heat activation temperatures below the softening point temperature of the polymeric material; creasing the bag along a fold line, applying heat at a temperature below the softening point temperature of the polymeric material to activate the first adhesive layer and the second adhesive layer to adhesive states after the bag has been filled with contents; and folding the bag to form an adhesive-to adhesive seal by contact between the heat activated first adhesive layer and the heat activated second adhesive layer.

Abstract: The invention relates to a process for closing mesh bags, in which a longitudinal portion of constricted mesh is compressed together with a portion of at least one plastic strip provided with a width greater than that of the constricted mesh such that respective side bands of the strip project on both sides of the constricted mesh, the process further comprising the operations of introducing in a die the compressed longitudinal portions of strip and mesh such that the mentioned side bands are bent towards the constricted mesh; folding the bent side bands of the strip over the constricted mesh; and causing the melting of the materials forming the folded strip and the constricted mesh, determining one or several attachment sections between the folded strip and the constricted mesh along the compressed portions of the mesh and of the strip.

Abstract: A flexible package is formed and filled in an in-line process by directing a web of film and a semi-rigid strip in a machine direction; folding the web of film into a pair of opposing walls with the semi-rigid strip there between; and selectively attaching the strip to only one of the opposing walls by controlling applied heating to opposing walls of the pair to seal one wall but not the other to the semi-rigid strip to define an opening between upper edges of the opposing walls.

Abstract: A container packaging apparatus includes a side edge chuck member that positions and holds both side ends of an opening of a packaging bag in place during a deaeration operation, suppressing development of crimps in a sealed area of the packaging bag. A high level of sealing of the packaging bag and thus the packaging of a container case with a resultant high level of quality in a stable manner can be obtained.

Abstract: The present invention may be used for plastic tube sealing and testing. A housing may have in a sealing chamber a tube sealing positioning apparatus with a tube holder slidable on a vertical guide from a lower portion to an upper portion to be positioned adjacent a heating apparatus and a clamping apparatus. The tube holder may be moved and positioned by a linear positioning device. The heating apparatus may have a nozzle to direct heated air on an open end of a plastic tube. The clamping apparatus may have two clamping devices slidably disposed to clamp the heated open end of the plastic tube to fuse the tube wall adjacent the open end. A spacing distance sensor and a tube position distance sensor may be attached to the clamping devices for sensing the position of the tube and the spacing of the clamp jaws of the clamping devise. A control processor may be connected to the linear positioning device to control movement and dwell time of the tube holder.

Abstract: An apparatus for sealing prepared medications in enclosures includes a tubular sleeve having an open first end, an open second end, and an outer surface. The first end includes at least one first locking member for securely attaching the tubular sleeve to another member. The apparatus also includes a length of a flexible packaging sleeve that is open at one end and has an open interior space. The packaging sleeve is disposed about the outer surface of the tubular sleeve in a compressed form. The open end of the sleeve is sealingly attached to the first end of the tubular sleeve. A tensioner device is disposed about an outer surface of the packaging sleeve and includes a first section that couples the first end of the packaging sleeve to the tubular sleeve and at least two elongated tensioner arms that extend along a length of the tubular sleeve.

Abstract: An apparatus that can be used for packaging refuse, such as soiled diapers, for disposal or items, such as food and medicine, for storage can comprise a receptacle having an upper open end, a cover connected proximate the upper end of the receptacle, and a rotatable tube mounted on a pair of bosses carried by the receptacle. The rotatable tube can carry a roll of linearly attached disposable bags for receiving refuse and the like. Sealing means can be provided for sealing at least one of the disposable bags after receiving refuse or other item to be packaged. A suction motor can be provided in communication with the disposable bags to vacuum air out of the disposable bag. A cutting assembly can be connected to the cover for cutting the disposable bag from the plurality of linearly attached disposable bags.

Abstract: The disclosure relates to an apparatus for sealing a package. The apparatus comprises a sealing unit and an abutment between which a number of material layers are disposed to be clamped and sealed and fused together, wherein the abutment is connected to at least one elongate element which extends in a direction from the abutment towards and past the sealing unit, the elongate elements, beyond the sealing unit are disposed to be connected to at least one first operating element, and an operating unit is disposed to apply a force between the sealing unit and the first operating element so that these are moved in a direction away from one another and so that the abutment and the sealing unit are moved in a direction towards one another.

Abstract: The invention relates to a device for gas filling of a duct (7) in a container (1) of a collapsible type, said duct (7) being defined by a first and a second side wall (2) of the container (1), the side walls (2) being joined along a common connecting portion (4), and said duct (7) comprising an inlet (15) arranged in the first side wall (2). The device comprises an abutment (21) and a gas module (26) with an outlet (28), which is arranged in a surface of the gas module (26) facing the abutment (21), and a clamping means (29) arranged outside the outlet (28), which clamping means (29) is applicable to the abutment (21) for clamping the container (1), and which outlet (28), in connection with the clamping of the container (1), is applicable to said inlet (15) for supply of gas to the duct (7) of the container.

Abstract: A side sealing apparatus for a shrink packaging machine comprising closed loop temperature control of a heater for maintaining an optimum temperature for cutting and sealing two layers of thermoplastic film. The heater comprises a cable or cartridge heater with an internal thermocouple, and it is connected to an automatic temperature controller. The heater is mounted on the side sealer apparatus between two sets of top and bottom V-belts mounted around drive rolls and idler rolls. The V-belts provide nip pressure against the film in order to drive the film. Nip pressure is generated by nip rolls on the scrap side of the film, and by belt support plates on the package side of the film.