The invention relates to a sonotrode for an ultrasound welding system for welding workpieces (20, 30), comprising a pressure element (2) which has a contact surface, which pressure element can be applied to carry out the welding process with said contact surface on one of the workpieces (20) to be welded to each other, wherein the contact surface has an annular design. A centering pin axially projecting over the contact surface is arranged inside the annular contact surface. The invention also relates to a method for welding a connection element (20), in particular an adapter for a PDC sensor, to a component (30), in particular an exterior add-on part of a motor vehicle.

A cell culture device comprises a cell culture membrane and a substrate fixed to the cell culture membrane. The cell culture membrane is made from a thermosetting resin and has a plurality of pores that are open to at least one surface including a surface on a side that is in contact with the substrate. The substrate is made from a thermoplastic resin. In a contact region between the cell culture membrane and the substrate, part of the substrate is extended to form bulges in the pores of the cell culture membrane that are open in the contact region. This configuration suppresses reduction of the strength of the cell culture membrane and reduction of the flatness of the cell culture membrane (membrane accuracy) in the cell culture device in which the cell culture membrane and the substrate are fixed to each other.

A structure of a heater for a packing machine which can be mounted on a packing machine such as a food container to thermally seal a wrapping paper such as a film includes: a heating part for generating heat if electric power is applied to the heating part and thermally fusing the wrapping paper to the food container in a hollow closed curve shape; and a connecting part connecting the heating part to a power source, and wherein an upper or lower surface of the heating part contacts the wrapping paper to heat the wrapping paper so that the wrapping paper is thermally fused to the food container.

The invention relates to an ultrasonic booster (1) for a sonotrode (30) for processing workpieces (W) with ultrasonic vibrations, having a booster body (10). Longitudinal vibrations (SL) are introduced into the booster body (10) on a sound introduction side (11) having a first end side (12). A conversion structure (15), by means of which transverse vibrations (ST) having a vibration component in a plane (E) perpendicular to the longitudinal axis (L) are generated from the longitudinal vibrations (SL), is located between the sound introduction side (11) and a coupling side (13) opposite the sound introduction side.

An assembly (1) for protecting an acoustic device comprises an expanded polytetrafluorethylene (ePTFE) membrane (3) and first and second polymeric substrates (2, 4) disposed on opposing sides (5, 6) of the membrane (3). The first substrate (2) is transmissive for laser light of a predetermined wavelength, and the membrane (3) is joined to the first and second substrates (2, 4) by first and second laser weld joints (9, 10) on the first side (5) of the membrane (3) and the second side (6) of the membrane (3), respectively, that are created in a single laser transmission welding step through the first polymeric substrate (2) towards the second polymeric substrate (4). The first side (5) of the membrane (3) may be at least partially absorbent for the laser light and the second side (6) may be at least partially transmissive for the laser light. This may be achieved by a color gradient from black to white from the first side (5) to the second side (6).

An accommodating intraocular lens comprises a first lens component, a second lens component, and an adhesive between portions of the two lens components. The cured adhesive bonds the lens components to form a fluid chamber. The lens components are bonded to one another along a seam which extends circumferentially along at least a portion of the lens components. The lens components may comprise the same polymer material. The cured adhesive also comprises the polymer or a prepolymer of the polymer to provide increased strength. The polymer is hydratable such that the lens components and the cured adhesive therebetween can swell together to inhibit stresses between the lens components and the cured adhesive.

An applying unit for applying lids to necks of containers may be provided. The applying unit may include a conveying device configured to advance the containers along a path in an advancement direction; a group of applying heads, each applying head configured to screw a lid onto a corresponding neck; and a movement device configured to move the group of applying heads along the advancement direction, so that each applying head may be coupled to a corresponding neck along a portion of the path. The movement device may be configured to act on a common support element configured to support the applying heads of the group, so as to synchronously move the applying heads along the advancement direction.

A portable assembly for securing a plastic fitting to a plastic pipe by employing fusion or thermal sealing is disclosed. The assembly is secured to the outer circumference of a plastic pipe at a desired location. The assembly can be secured at any longitudinal and lateral position along a plastic pipe. A heater heats both the pipe and the fitting to the point where they begin to melt. The heater is then removed and the fitting is pressed onto the surface of the pipe, thus fusing the fitting to the pipe. After cooling, the assembly is removed and the surface of the pipe within the interior of the fitting is drilled or removed. This now enables fluid within the pipe to be sent to the fitting and onto distribution lines which are connected to the fitting.

A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.

A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.