A blister assembly comprises at least one collapsible blister adapted, as it is collapsed, to eject a liquid contained therein. The blister assembly comprises a first layer (130) having at least one blister chamber (150) and a second layer (131) sealed to the first layer at least around a periphery of the at least one blister chamber such that a liquid is contained between the first layer and the second layer. The seal between the first and second layers comprises a first planar portion having a first peel strength and a second planar portion having a second peel strength, wherein the first peel strength is greater than the second peel strength, such that when pressure is applied to the blister, the second portion of the seal breaks to release the liquid contained within the chamber into the liquid inlet. The blister assembly further comprises at least one discontinuity (142) formed in the first and second layers in the region of the first portion of the seal, such that a shear force is required to delaminate the first and second layers in that region.

A blister assembly comprises at least one collapsible blister adapted, as it is collapsed, to eject a liquid contained therein. The blister assembly comprises a first layer (130) having at least one blister chamber (150) and a second layer (131) sealed to the first layer at least around a periphery of the at least one blister chamber such that a liquid is contained between the first layer and the second layer. The seal between the first and second layers comprises a first planar portion having a first peel strength and a second planar portion having a second peel strength, wherein the first peel strength is greater than the second peel strength, such that when pressure is applied to the blister, the second portion of the seal breaks to release the liquid contained within the chamber into the liquid inlet. The blister assembly further comprises at least one discontinuity (142) formed in the first and second layers in the region of the first portion of the seal, such that a shear force is required to delaminate the first and second layers in that region.

The invention relates to a working station, in particular to a deep-drawing station, to a molding station, to a sealing station, to a cutting station or to a punching station, for a packaging machine, comprising a rack supported on the ground; a work unit comprising an upper part and a lower part; and a lifting mechanism which is carried by the rack and by which the lower part of the work unit can be raised and lowered relative to the rack to perform a lower stroke, wherein the lifting mechanism has a drive that comprises at least one shaft extending in a transverse direction; a drive motor engaging at the shaft for rotating the shaft; and at least one gear which is coupled at an input side to the shaft, at which the lower part is supported at an output side, and which converts a rotation of the shaft into the lower stroke of the lower part.

The invention relates to a working station, in particular to a deep-drawing station, to a molding station, to a sealing station, to a cutting station or to a punching station, for a packaging machine, comprising a rack supported on the ground; a work unit comprising an upper part and a lower part; and a lifting mechanism which is carried by the rack and by which the lower part of the work unit can be raised and lowered relative to the rack to perform a lower stroke, wherein the lifting mechanism has a drive that comprises at least one shaft extending in a transverse direction; a drive motor engaging at the shaft for rotating the shaft; and at least one gear which is coupled at an input side to the shaft, at which the lower part is supported at an output side, and which converts a rotation of the shaft into the lower stroke of the lower part.

Apparatus and method for separating product containing pouches from a travelling web of adhered films carried on a film support surface includes a rotary blade drum assembly having blade configurations with blade portions arranged to form the entire perimeter edge of the flange of the pouch which rotate in synchronous registration with grooves in the film support surface. In one form, at least one blade portion and associated groove portion are non-linear and other than longitudinal or transverse to the film support surface of the forming drum or travelling web of films. The blade portions may be heated and the rotary blade drum assembly may include insulating guides for the pouches.

A method of operating a sealing station of a packaging machine for producing, in the case of possibly varying filling degrees, packages with at least substantially similar package appearances, the method comprising the execution of a comparison between a detected pressure curve and a reference pressure curve, and the calculation of a filling degree of the package positioned within the sealing station on the basis of the comparison between the detected pressure curve and the reference pressure curve, and/or the calculation of a volume flow with respect to the pressure curve or the reference pressure curve, and the setting of at least one process parameter at the packaging machine with due regard to the calculated filling degree and/or the volume flow.

Multi-layer web and mechanical scoring process for forming lidding film for push through blister packages. The web is configured to resist the tensile forces encountered during manufacturing processes, including slitting, rewinding and heat sealing processes. A simplified web conversion process for creating mechanically scored lidding film for blister packages is provided at reduced investment and operational costs compared to prior art systems.

Multi-layer web and mechanical scoring process for forming lidding film for push through blister packages. The web is configured to resist the tensile forces encountered during manufacturing processes, including slitting, rewinding and heat sealing processes. A simplified web conversion process for creating mechanically scored lidding film for blister packages is provided at reduced investment and operational costs compared to prior art systems.

Apparatus and method for separating product containing pouches from a travelling web of adhered films carried on a film support surface includes a rotary blade drum assembly having blade configurations with blade portions arranged to form the entire perimeter edge of the flange of the pouch which rotate in synchronous registration with grooves in the film support surface. In one form, at least one blade portion and associated groove portion are non-linear and other than longitudinal or transverse to the film support surface of the forming drum or travelling web of films. The blade portions may be heated and the rotary blade drum assembly may include insulating guides for the pouches.

A thermoform packaging machine comprising, as work stations, a forming station for thermoforming troughs in a packaging film, at least one sealing station for sealing the troughs with a cover film, and a cutting station as well as a feeding device for causing a feed of the packaging film. A method for using such a thermoform packaging machine wherein a controller determines for two or more work stations, prior to a process step, which required feed length each of these work stations has, the required feed length indicating the distance by which the packaging film will have to be conveyed for the next process step of the respective work station, before a feed length specification is ascertained from the required feed lengths determined and the feeding device is controlled accordingly.