Abstract: A heat seal between a plastic bag and a plastic sheet is used to provide a more secure and reliable seal to define a modified atmosphere for a pallet of perishables. The heat seal reduces atmosphere failures and aids in providing a more consistent atmosphere in the pallet bag system thus reducing the number of pallets that have an out of specification atmosphere. The heat seal may be created with a heating sealing apparatuses that is part of a system used to load and seal a load of containers of perishables onto a pallet. The heat sealing apparatus uses two heated rollers coupled to a rotating arm to contact and heat seal a plastic bag to a plastic seal that enclose a palletized load of perishables that are rotated on a turntable.

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: A bag making and packaging machine includes a conveying unit, a transverse sealing mechanism, and a gusset forming mechanism. The conveying unit is configured and arranged to continuously convey a tubular packaging material. The transverse sealing mechanism has a pair of sealing jaws configured and arranged to revolvingly move while following annular loci to seal the tubular packaging material in a transverse direction with respect to a conveyance direction of the tubular packaging material. The gusset forming mechanism has a pair of folding members configured and arranged to be pressed against side portions of the tubular packaging material to form gussets in the side portions of the tubular packaging material while the folding members move along the conveyance direction of the tubular packaging material before the transverse sealing mechanism seals the tubular packaging material.

Abstract: A sonotrode comprising: a head defining a sealing surface elongated along a first direction; and a first and a second drive unit distinct from one another, each comprising at least one piezo-electric element; wherein first and second drive unit may be electrically fed by an unique generator to cause oscillation of head; the height of head measured along a second direction transversal to sealing surface being substantially equal to half the wavelength of wave oscillating in second direction; at least one slot extending through head transversally to first and second direction; a finite number of nodal points at which amplitude of oscillation of head is substantially equal to zero; and a plane on which at least some nodal points lie and which divides head in a first portion and second portion; the slot extends completely within one only between first and second portion and at a certain distance by plane.

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 induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products, comprising: at least one first inductor which comprises, in turn, a first active surface adapted to be arranged on the side of packaging material and to heat-seal it; and a member made of plastic material; first active surface is covered by the member made of plastic material adapted to cooperate with the packaging material during its heat-sealing.

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: A sealer to bond film having a high temperature resistance (e.g., ceramic) substrate with properly sized groove receiving a heater element as in a flat faced wire band in a tight, flush to adjacent film presentation surface arrangement. A stacked ceramic plate set with wire band within a groove defined by an intermediate stack insert is a suitable substrate. The band is retained flush by a positioner securely locking down one end while the other end is provided at a housing body access location. The sealer is suited for use as a product-in-bag sealing device (products such as air, foam, foodstuff, etc.) with the heater element in contact with film to form a seal. A drag seal arrangement, where film layers are drawn past a fixed or adjustably mounted heater element is an example.

Abstract: A method for forming a bag includes moving a film at a first velocity, forming a seal on the moving film with a sealing device moving at the first velocity, moving the film and the sealing device relative to each other and thereby moving the sealing device out of alignment with the seal, aligning a film separation device with the seal on the moving film, moving the film separation device with the moving film, and separating the film across the seal with the film separation device. A sealing and cutting device includes a carriage moveable along a longitudinal axis and upper and lower grippers coupled to the carriage. A sealing device and a cutting device are positioned between the upper and lower grippers.

Abstract: A closing apparatus for closing preferably bag-type packaging units by compression, which units have regions of differing thickness along the package opening to be closed, such as square bottom bags for instance, in particular made of coated or uncoated paper, paperboard, plastic, film, and/or woven material, which packaging units have at least one suitable sealing surface that is integrated in or applied to the material for permanent bonding to a surface that is adjacent to or opposite and pressed against the material, wherein the closing apparatus has a pressing device with at least one pressure device and at least one counter-pressure device between which the packaging units can be compressed, preferably with the application of heat, in the region of their sealing surface(s). In order to achieve a uniformly durable closure, the pressure device and the counter-pressure device have zones of different pressure and/or different temperature along the package opening to be closed.

Abstract: The invention relates to top seal driver assembly for sealing the top opening of a pouch comprising Motor means for driving a rocker bar mounted on a central drive shaft, the rocker bar being connected on opposite ends to an outer seal rod drive bar and to an inner seal rod drive bar, the outer seal rod drive bar being connected to outer seal drive rods, and the inner seal rod drive bar being connected to inner seal drive rods, the outer and inner seal drive rods being supported in a box frame with bearing means, wherein outside dovetail bars are mounted to the outer seal drive rod and inner dovetail bars are mounted to the inner seal drive rod, wherein seal bar assemblies are mounted to the dovetail bars, wherein the box frame contains the central drive shaft, the rocker bar, the outer and inner seal rod drive bars and the outer and inner seal drive rods.

Abstract: A bell machine (10) for the packaging of products with a thermoshrinkable monofolding film consists of a series of moulded modular elements (16,17,18,19,20,21), made of a plastic material and which can be assembled with each other by-means of removable coupling means.

Abstract: An automated filling system for introducing crushed polysilicon fragments into shipping bags without significant contamination positions a freely suspended energy absorber into a freely suspended bag of non-contaminating material prior to filling, and following filling, the energy absorber is removed, and the bag is sealed. The system can replace manual packaging which has been required for semiconductor applications.

Abstract: A bag-making and packaging machine includes a forming mechanism, a vertical sealing mechanism, a transverse sealing mechanism and a receiving member. The forming mechanism is configured to roll a sheet-shaped packaging material into a cylindrical shape to form a cylindrical packaging material. The vertical sealing mechanism is configured and arranged to seal an overlapping portion of the cylindrical packaging material with heat vertically along a direction in which the cylindrical packaging material extends. The receiving member is attached to the forming mechanism in a position facing the vertical sealing mechanism, and configured and arranged to sandwich the overlapping portion together with the vertical sealing mechanism. The receiving member has elasticity with which the receiving member presses the overlapping portion toward the vertical sealing mechanism.

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: A heat welding member 23 of a seal head 21 formed in the shape of a flange portion 11a of a container 10 is heated by high frequency induction heating and a cap 12 is welded by pressing the heated seal head 21. By using the seal head 21 comprising the heat welding member 23 having a shape necessary for sealing the cap 12, influences by temperature drop and inflation of gas in a head space can be prevented and sealing at a high speed and in a stable manner can be achieved.

Abstract: An apparatus is provided for forming bag edges in a layered plastic film. The apparatus includes a heated seal bar and a seal bar anvil. The seal bar anvil has a resilient tube configured to deform as the seal bar is driven into the tube to seal and sever a bag edge therebetween. According to one construction, the resilient tube is pressurized pneumatically from the inside so as to impart a specific, desired resilience to the tube as the tube and seal bar co-act on either side of the layered plastic film.

Abstract: This invention encompasses a heat seal die incorporating heat tube technology for controlling the variation of temperature across a heat seal die. The invention also encompasses a system and method for portion control size packaging of flowable liquid-containing condiments in a portion size in the range from 1 to 5 ounces using such a heat seal die.

Abstract: A heat sealer having a heated platen, a cylinder for reciprocating the platen, a die positioned to be engaged by the platen and a shuttle supporting the die to move the die from a platen-engaging position to a non-engaging position, and a control for controlling the temperature of the platen and the force applied to the platen against the die by the cylinder. The invention also includes a temperature sensor for sensing the surface temperature of the platen and a load sensor for sensing the force applied by the platen to the die. In one embodiment, the temperature sensor is an infrared temperature sensor that reads the surface temperature of the platen and the load sensor is a load cell positioned beneath the die and supporting the die so that the load sensors can measure the direct force applied by the platen against the die. Also, in one embodiment, the infrared sensor is positioned beneath the die so that it can read the platen temperature when the die is displaced to the non-engaging position.

Abstract: In order to reduce the percentage of leaks in sealed packages, the sealing jaws contain one or more raised regions that correspond to problem areas for leaks, i.e., adjacent to back seals and folds in the package design. The raised regions are raised approximately 4-20 mils above the regions that seal the normal two layers of material.

Abstract: A method for manufacturing a stand up bag having an indented bottom wall includes the steps of forming a tube of material and sealing the end of the tube. The sealed end is then moved up with respect to the sidewall to form a downwardly-extending rim. Portions of the rim are then welded to hold the bottom wall in this position.

Abstract: A bag forming apparatus and method that features a single drive unit for operating both a drive roller and cross-cut mechanism with the drive motor assembly being internalized within the drive roller. The bag forming apparatus and method also features a easy slide in, slide out edge sealer and vent hole former inserts that are held by, and move with, the bag width adjustable driven rollers. The edge seal inserts feature a heating element that is compressed against the film material by an internal bias in the edge sealer insert. A heating element can also be used for the vent hole inserts. The heating element can be a plug-in heating unit easily inserted and removed from the remainder of the insert.

Abstract: There is described a packaging machine (1) for producing sealed aseptic packages (2) of a pourable food product from a tube (3) of packaging material fed along a vertical path (A) and filled continuously with the food product. The machine (1) has gripping means (13, 14) for gripping the tube (3) at equally spaced cross sections (15); and sealing means (23, 24; 34, 35) for sealing the packaging material of the tube (3) along the cross sections (15), and in turn having a first and a second sealing device (23, 24; 34, 35) forming part of respective distinct, successive units (10, 20) of the machine (1). The first sealing device (23, 24) interacts with the cross sections (15) of the tube (3) for a time (T1) shorter than the time (T) required to achieve complete sealing of the cross sections (15), but sufficient to form respective temporary aseptic transverse sealing bands (25); and the second sealing device (34, 35) interacts with said temporary sealing bands (25) to seal them completely. (FIGS.

Abstract: The apparatus for dispensing change of the present invention comprises: a data input device for inputting change data; a base sheet supplier for supplying a base sheet; a top sheet supplier for supplying a top sheet; a cash deliverer for delivering cash based on the change data input to the data input device; and a change pack producer for producing a change pack by packing the cash delivered by the cash deliverer between the base sheet supplied by the base sheet supplier and the top sheet supplied by the top sheet supplier.

Abstract: Process for Sealing a Filled Sack Made of Thermoplastic Plastic and Provided with Gussets A sack made of thermoplastic plastic that has been provided with gussets is closed after being filled in that the open side of the sack is pulled tight and provided with a crosswise seal. In order to be able to produce the crosswise seal even when the region to be sealed is contaminated, the lateral regions of the crosswise seal are formed on the region of the sack, which is still lying flat, including the gussets and extending to the transitional region by means of a first sealing sequence, preferably by means of an ultrasound sealing process. After the sack has been filled, the middle region of the crosswise seal is produced by means of a second sealing sequence, preferably an ultrasound sealing process.

Abstract: A method and machine for wrapping a product in a sheet of heat-seal wrapping material, whereby the sheet of wrapping material is folded by a fixed folding device onto a wall of the product so as to superimpose at least two portions of the sheet of wrapping material; the sheet of wrapping material, once folded, is gradually released from the fixed folding device; and a sealing surface of a sealing head is brought gradually into a position facing the superimposed portions as the superimposed portions are gradually released from the folding device.