A device for sealing sample tubes comprises a tool assembly configured to interface with a rack (10) holding a plurality of sample storage tubes (20), the tool assembly holding a plurality of punches (322) and a die plate (324) including a plurality of cutting holes, with each of the plurality of cutting holes accepting one of the plurality of punches (322). The tool assembly receives a foil sheet (131) between the punches (322) and the die plate (324). The device includes an actuator enabling linear movement of the tool assembly. Linear movement of the tool assembly towards the rack (10) engages the die plate (324) against the rack (10) and punches the punches (322) through the cutting holes of the die plate (324) to punch a plurality of sealing sections from the foil sheet (131) and to press and seal each of the sealing sections against a top end of each of the plurality of sample storage tubes (20) in the rack (10).

A bag (100) suitable for packaging fruit and vegetable products (2) comprising a casing (103) capable of housing the products to be packaged and at least one first band (104) and one second band (105) each arranged on the outer face of the casing so as to seal said casing, the first band (104) being joined to the casing only at its ends (104a, 104b) forming a handle (106) and the second band (105) joined along the length thereof to the associated face of the casing, forming a stable bottom (105c). A station (1) for producing this bag (100) comprises an expansion device (4) of tubular material comprising an upper expansion body (4a) and a lower expansion body (4b) mechanically linked to each other with a capacity for movement of one with respect to the other and that cooperate with welding groups.

An exemplary air cushion inflation machine includes: a first terminal connected to a direct current input; a second terminal; a reference resistor powered by the direct current input; an op-amp; and a transistor. The first terminal of the op-amp is connected to a variable voltage source and the second terminal of the op-amp is connected to the reference resistor. The transistor has a base connected to an output of the op-amp, an emitter connected to the reference resistor, and a collector connected to a first terminal of a sealing band apparatus having first and second terminals. A meltable material placed between the first and second terminals is melted by resistance of current flowing between the first and second terminals. The variable voltage source changes voltage based on a voltage drop measured across the first and second terminals by a voltage measurement device and the constant current.

Systems and methods are presented herein for a method of attaching a strip to a housing. An internal support member is inserted into a collapsible housing, such that it is arranged along a longitudinal axis of an inner surface of the collapsible housing. An outer support member is arranged along an outer surface the collapsible housing opposite the internal support member. A strip is positioned along the outer surface using the outer support member and the internal support member. Then the strip is permanently welded to the outer surface using a welding element. Welding is performed by a welding element located in one (or both) of the internal support member or the outer support member.

Two workpieces 30, 40 are joined by means of ultrasound. First, a workpiece 30 with at least one energy direction sensor 31 and a second workpiece 40 are provided. The workpieces are brought into contact with each other in such a way that the energy direction sensor 31 comes into contact with a first surface 41 of the second workpiece 40. Ultrasonic vibrations are then introduced into one of the workpieces 40 via a working surface 11 of a sonotrode 10. A sonotrode 10 is used, which has a contour with contact lines 12 on the working surface 11. The sonotrode 10 is positioned with respect to the first workpiece 30 in such a way that the contact lines 12 run transversely to the energy direction generator 31.

A connector for connecting a tube to a connection element. The connector includes a housing, which has a coupling portion. The coupling portion is adapted to be at least substantially fluid-tightly connectable to a complementary connection portion of the connection element. The connector includes a tube connection piece, which is adapted to be connectable on the one hand to a tube and on the other hand to the housing in order to make a fluid connection between the tube and the coupling portion of the housing. The housing includes at least one polyolefin.

A system for fusing thermoplastic composite structures includes a skin and a substructure on an inner surface of the skin. The system also includes a shaping surface of a tool, with the skin laid up on the shaping surface. The shaping surface is configured to maintain the shape of an outer mold line. The system further includes at least one insulation layer applied over a flange of the substructure and over exposed portions of the inner surface of the skin not in contact with the substructure, and a vacuum bag at least partly enclosing the skin and the substructure. Heat can be applied to the shaping surface to fuse the substructure to the skin such that the skin exceeds its melting point and at least a portion of a raised segment of the substructure does not exceed its melting point.

To improve a method for ultrasonic welding of parts for vehicles and/or aircraft, a method in which an energy director made of non-woven fiber material is arranged between a first fiber composite part and a second fiber composite part to be joined together. A sonotrode is used to join/weld the parts together by pressing on the parts. The energy director is compliant such that a uniform even contact is generated between the first and second fiber composite parts during the welding process.

Provided are a joining structure, a joining method, an exterior body for a wire harness, and a wire harness capable of firmly joining members having different physical properties while reducing the thickness of a joint part. The joining structure 10 joins a first member 1 made of a first resin and a second member 2 made of a second resin, wherein: the second resin has physical properties having a higher foaming ratio than the first resin; and a recessed joint part 3 is provided which reaches at least the inside of the first member 1 from the outer surface side of the second member in a state in which the first member 1 and the second member 2 are superimposed. Furthermore, a method for manufacturing the joining structure 10 comprises the steps of: superimposing a first member 1 made of a first resin and a second member 2 made of a second resin having physical properties having a higher foaming ratio than the first resin; and joining the first member 1 and the second member 2 by forming the recessed joint part 3 by pressing and hot-melting the second member 2 until the recessed joint part 3 reaches at least the inside of the first member 1 from the outer surface side of the second member 2.

An apparatus for quality assessment of a sealing section of a package for food products. The package includes at least a robustness layer and a plastic layer. The sealing section is formed by holding a first section and a second section of the package against each other while providing heat such that the plastic layer of the first and second section melt and the first and second section adhere to each other. The apparatus includes a sample holder arranged for fixating a sample including the sealing section of the package. At least part of the sample holder is transparent, a magnification device arranged on a first side of the sample holder, and an illumination device arranged on a second side of the sample holder. Light is provided to the magnification device through the sample holder The first and second side are opposite sides of the sample holder.