The invention relates to a welding tool and a method for pulse welding films of plastic for medical packs formed as bags. The invention generally provides for the film material that has been plastified during welding, and is consequently free-flowing, to be specifically displaced by increasing the sealing surface area. The displaced film material can for instance compensate for dimensional and form tolerances. At the same time, however, the strength of the welded seam region, which adjoins the interior space of the bag, is not reduced.

An injection mold insert includes a housing of a first material and an inner core of a second material sealed in the housing of the first material. A mechanical strength of the first material is greater than that of the second material. The thermal conductivity of the second material is greater than that of the first material. The inner core is formed by filling a molten liquid of the second material into an inner cavity of the housing.

Methods and processes are described that enable the manufacture of a superior thin-walled mold from which higher-quality, less-costly disposable gloves can be more efficiently produced. The method can include creating a glove form in a sacrificial material; electroforming an electroformed master from the glove form; removing sacrificial material from the electroformed master; creating a tertiary form from the electroformed master; forming an initial copper layering on the tertiary form; and developing the initial copper layering into a thick copper plating to create a copper mold for gloves.

A prism (1090) is configured from a dielectric medium and is used in analysis using surface plasmons. The prism (1090) is provided with an incidence surface (1170) on which excitation light from outside is incident, a reflection surface (1172) on which excitation light having entered the incidence surface (1170) is reflected, an emission surface (1174) from which excitation light reflected by the reflection surface (1172) is emitted, and an opposing surface (1175) opposing the reflection surface (1172). A gold film (1092) is formed on the reflection surface (1172). The opposing surface (1175) has a sink-mark surface (1200), and the sink-mark surface (1200) is a transparent surface.

The present invention relates to a welding head (10) for fastening an element made of plastic material to one or more flexible webs (2, 3) made of plastic material, of which a flexible container (1) is composed. The head (10) includes a body made of electrically and/or thermally conductive material having a work surface (15) that is provided for being pressed, during the welding operation, against an element of the unit to be joined. The invention is characterized in that the work surface (15) includes a series of grooves or concave formations (16) that are essentially uniformly distributed on the surface of the work surface (15).

The present invention relates to a welding head (10) for fastening an element made of plastic material to one or more flexible webs (2, 3) made of plastic material, of which a flexible container (1) is composed. The head (10) includes a body made of electrically and/or thermally conductive material having a work surface (15) that is provided for being pressed, during the welding operation, against an element of the unit to be joined. The invention is characterized in that the work surface (15) includes a series of grooves or concave formations (16) that are essentially uniformly distributed on the surface of the work surface (15).

An apparatus includes a mold having a cavity space therein; the mold including a first mold formed of a non-magnetic member and having a mounting surface, the mounting surface being configured to have a decorative molding mounted thereon; and a magnet disposed on a surface of the first mold opposite to the mounting surface and configured to retain, on the mounting surface, the decorative molding to be mounted on the mounting surface.

A system and method for forming a seam between at least first and possibly second pieces of material used to form an inflatable product utilizes at least a first and potentially a second seam forming members that are attached to an inside wall of a piece of product material that comprises the inflatable product proximate each end. The inflatable product is comprised of one or more pieces of product material and one or more seam forming members located at any location where a seam is necessary. A first portion of the seam forming member attaches to a first edge of a first piece of product material and a second portion of the seam forming member attaches proximate a second edge of the first piece of product material. The seal forming can be accomplished by radio frequency, ultrasonic, heat or other types of welding, and adhesive or chemical based bonding.

A system and method for forming a seam between at least first and possibly second pieces of material used to form an inflatable product utilizes at least a first and potentially a second seam forming members that are attached to an inside wall of a piece of product material that comprises the inflatable product proximate each end. The inflatable product is comprised of one or more pieces of product material and one or more seam forming members located at any location where a seam is necessary. A first portion of the seam forming member attaches to a first edge of a first piece of product material and a second portion of the seam forming member attaches proximate a second edge of the first piece of product material. The seal forming can be accomplished by radio frequency, ultrasonic, heat or other types of welding, and adhesive or chemical based bonding.

A slider for slide fastener includes: a body including a pull tab attachment post; and a pull tab. The pull tab includes: a coupling member including an exposed portion and an embedded portion; and a pinching member including a first pinching portion including an annular end portion having an opening through which the embedded portion is to be inserted, and a second pinching portion provided to the first pinching portion with the embedded portion interposed therebetween. At least one of a front end surface and a rear end surface of the pull tab attachment post has a protrusion. And when the pull tab is tilted toward at least one of a front side and a rear side of the body, the protrusion locks the pull tab to restrict rotation of the pull tab.