A method for producing a package which has a formed part with a product cavity, and a lidding film covering the product cavity. According to the method, a seam is defined, the seam is divided into sections, a pull-off force for pulling the lidding film from the formed part at least for a first section is determined, and the lidding film is sealed to the formed part. The sealing temperature for the first section is selected based on the pull-off force.

An electric heating device includes a control portion adapted to control electric energy supplied to a heater, based on a before-heating temperature, which is a temperature of at least one of an object, the heater and a heat dissipation portion before the heater generates heat, the control portion is adapted to calculate the temperature of the object, based on the before-heating temperature and the electric energy supplied to the heater.

Embodiments of the invention relate to a sealing element for thermally connecting thermoplastic materials along a bent or curved contour, including a plurality of flat support substrates with a front face and a rear face, the substrates having at least one heating element on the front face, and including a contoured element which has a front face in the shape of the contour to be sealed, wherein the rear face of the support substrates is secured to the front face of the contoured element and/or the front face of the support substrates is secured to the rear face of the contoured element.

A vacuum sealer includes: a housing comprising a vacuum chamber therein; a vacuum pump in fluid communication with the vacuum chamber; a sealing mechanism adjacent a periphery of the vacuum chamber; a valve positioned and configured to releasably seal the vacuum chamber, the valve movable between a first position, in which the valve forms a seal with the sealing chamber, and a second position, in which the valve does not form a seal with the sealing chamber; and a controller operatively connected with the vacuum pump, the sealing mechanism, and the valve. The controller is configured to move the valve from the first position to the second position during sealing.

A method and apparatus for sealing a plastic enclosure is provided. The apparatus includes a handle including elements pivotally coupled together at a first end. The apparatus also includes a heating element positioned along an inner surface of an element and connected to a power source where a longitudinal axis of the heating element is oriented parallel with a longitudinal axis of the element. Plastic material including first and second plastic layers is positioned at an interface between the second elements. Upon pivoting the first elements from an open position to a closed position the heating element increases a temperature at the interface to melt the plastic material and form a seal between the first and second plastic layers.

A method for transversally sealing a packaging material tube, comprises placing a transversal sealing section of the tube between a sonotrode and an anvil. The transversal sealing section comprises a first two-layer sub-section, a three-layer sub-section and a second two-layer sub-section, transmitting ultrasonic acoustic vibrations, having a frequency and an amplitude, from the sonotrode into the transversal sealing section, thereby melting the plastic foil in the transversal sealing section, and pressing the tube together between the sonotrode and the anvil to bond the plastic foil such that transversal sealing is formed. The anvil has a ridge comprising various sub-sections for receiving various ones of the sub-sections of the tube, wherein the ridge has equal height in at least some of the sub-sections. The frequency, amplitude, pressure and paperboard properties are chosen to achieve equal temperature in the first two-layer sub-section, the three-layer sub-section and the second two-layer sub-section.

A pouch machine vertical sealer capable of fusing a pouch film web to form a plurality of spaced vertical seals along a length of the film web to form pouches. The pouch machine vertical sealer includes a sealer wheel rotatable about a vertical axis of rotation and defines a film web path about a periphery of the sealer wheel. The vertical sealer further includes a plurality of vertical sealer land assemblies spaced apart about the periphery of the sealer wheel. Each vertical sealer land assembly includes an impulse heater such that contact between the film web and each impulse heater of the plurality of vertical sealer land assemblies forms the spaced apart vertical seals along the length of the film web.

There is provided a heat sealing device that seals a film for packaging an article by heat welding, with the film sandwiching the article in between and being disposed in a partially overlapped state around the article, the heat sealing device including: a sealing head that heat-welds a seal portion to be sealed in the film; a first cooling head that cools the seal portion after heat welding by the sealing head; and a second cooling head that cools at least a part of an article side region in the film, which is located on an article side with respect to the seal portion.

A method for manufacture and filling with a sterile liquid of a tubular packaging includes: providing a container with liquid therein, providing a tube, filling the tube with the liquid from the container, dividing the tube into tubular segments by successive welding operations, and separating the tubular segments at the welded seams. After each welding operation the tube is displaced over a distance corresponding to a desired length of the tubular segments, or multiple thereof. During each welding operation pressure can be exerted locally on and energy can be supplied to the tube. Exertion of pressure and the supply of energy can be staggered in time. During each welding operation a temperature at the welded seam can be kept constant. During each welding operation a welding parameter can be measured, and the welding operation can be controlled on the basis of the measured value of the welding parameter.

A method for handling containers (I) of collapsible type in a filling machine (20) comprising consecutively arranged stations (S1, S2, S3, S4, S5, S6) comprising a filling station (S3) and a gas filling station (S5), the method comprising intermittently moving the containers (I) to the consecutively arranged stations (S1, S2, S3, S4, S5, S6), supplying, at the filling station (S3), liquid product into the product compartment (5) and supplying, at the gas filling station (S5), gas into the handle compartment (7). The filling station (S3) and the gas filling station (S5) are operated such that liquid product is supplied to the product compartment (5) of one of the containers (I) while gas is supplied to the handle compartment (7) of another of the containers (I). The step of supplying gas at the gas filling station (S5) comprises providing a first gas flow (Qi) at a first pressure (Pi) and delivering said first gas flow (Qi) from the nozzle (30) to the handle compartment (7) via said inlet (11), and subsequently providing a second gas flow (Q.sub.2) at a second pressure (P.sub.2), lower than said first pressure (P.sub.1), and delivering said second gas flow (Q.sub.2) from the nozzle (30) to the handle compartment (7) via said inlet (11) for establishing a target pressure (P.sub.T) inside said handle compartment (7) corresponding to said second pressure (P.sub.2).