An induction heating sealing device (30) for sealing a packaging material comprising an electrically conductive layer and advancing, in use, along a first direction (A), said induction heating sealing device (30) comprising an inductive element (100), said inductive element (100) comprising a first leg (31) extending along said first direction (A) and within which, in use, an alternate currents flows, said first leg (31) facing, in use, an area (44) of said packaging material to be sealed and being configured to induce, in use, an eddy current within said area (44), and a second leg (32) arranged on one side of said first leg (31) and facing a further area (45) of said packaging material, wherein said first leg (31) comprises at least one first portion (41) and at least one second portion (42) spaced apart from one another in a second direction (S) transversal to said first direction (A).

An apparatus and a method for stitching are provided. The apparatus includes a separator for separating in a separation position the leading end and the trailing end from a working surface to form a separation space, a stitcher unit with a stitcher foot to support the leading end and the trailing end from the separation space and a stitcher head for stitching the leading end and the trailing end on the stitcher foot from outside the separation space, a stitcher drive for driving the stitcher unit, a separator drive for retracting the separator, and a control unit to control the separator drive and the stitcher drive simultaneously such that, during the stitching, the separator is retracted in the stitching direction ahead of the stitcher unit.

A plastic film has opposite side edge portions superposed and heat sealed with each other longitudinally thereof in accordance with an improved method so as to adequately heat seal the side edge portions with each other so as not to be low in seal strength and not to be impaired in appearance. A pair of heaters is disposed on the opposite side edge portions. The heaters have heating surfaces spaced from and opposed to each other and operative to preheat the side edge portions. A plurality of suction holes is formed in each of the heating surfaces. The side edge portions are attracted by the suction holes to be brought into contact with the heating surfaces.

A method of forming a structural tube may include urging a substantially flat thermoplastic sandwich sheet against a mandrel and heating the thermoplastic sandwich sheet to a temperature below a glass transition temperature. The method may further include allowing the thermoplastic sandwich sheet to cool and removing the mandrel, thereby forming a tube portion.

A method for producing a cup from a flat segment and a pot-like base, including the steps of winding the flat segment onto a winding mandrel, so that there is an overlap in the region of the side edges of the segment, connecting the sections, which adjoin the side edges, in the region of the overlap, so that a conical sleeve is produced, inserting the pot-like base into the conical sleeve, and connecting a circumferential wall of the pot-like base in a substantially liquid-tight manner to an inner face of the sleeve.

Disclosed is a method of forming an article from a unidirectional (UD) tape comprising a continuous unidirectional fiber impregnated with polymer resin. The method includes winding a continuous section of cold UD tape to form a closed loop preform (38) comprising a plurality of stacked layers while discretely welding and consolidating the wound preform by heating and applying pressure.

A device for manufacturing circumferentially closed tubular tube bodies, comprising conveying means for conveying the substrate in a conveying direction, and also comprising tube-forming means which are designed to form a web-like substrate, which has a first and a second longitudinal edge, into a tubular form in which, in the circumferential direction, the first and the second longitudinal edge form or delimit a contact region, in particular abutting or overlapping region, which extends in the conveying direction, wherein the tube-forming means effect the shaping of the substrate into the tubular form in a shaping region and comprise welding means for welding the tubular form at a weld circumferential position, first sensor means, which are upstream of the shaping region; in the conveying direction, for detecting the position of the substrate web, setting means for setting the position of the substrate web transversely with respect to the conveying direction, and first control means which are designed to actuate the setting means, taking into consideration the measurement values from the first sensor means, such that the web-like substrate is held in a setpoint position transversely with respect to the conveying direction or such that the web-like substrate is adjusted in the direction of the setpoint position.

In order to provide a bonded part capable of reducing deformation caused by injection pressure of bonding resin and preventing an increase in cost, the bonded part includes a first part, a second part, and a third part, wherein the first part includes a wall portion and a hollow portion surrounded by the wall portion, wherein a first shape portion formed of bonding resin is arranged at a position between the second part and the wall portion, wherein a second shape portion formed of the bonding resin is arranged at a position between the wall portion and the third part, and wherein a third shape portion formed of the bonding resin which connects the first shape portion and the second shape portion is arranged on the wall portion.

A method and apparatus for performing induction welding. A number of protective layers are positioned between a susceptor layer and at least one of a plurality of workpieces at a weld location. An undesired current path is prevented from forming at the weld location during induction heating of the plurality of workpieces by the number of protective layers.

Systems and methods are provided herein for making a high precision three-dimensional surface by cutting panels having curved outer edges, aligning the edges of adjacent panels on a mandrel having a curved surface, illuminating the mandrel to show space between the panels, adjusting the panels to bring into precision alignment, using a magnifier and micrometer to readjust the position of the panels relative to each other for a more precise alignment, and adhering the panels together in a precise orientation for creating the high precision three dimensional surface.