A method for molding a composite pressure vessel liner to secure a boss to the liner is described. The method comprises providing a moldable liner having an end section with a neck and a port. A boss is positioned around the neck of the liner and the liner is heated and pressure is applied to mold the liner to form to the shape of the boss. The angle of the molded liner secures the boss in place around the liner and it is able to withstand high pressures. A tool for molding the liner and a method for using the tool is also described. The tool comprises a tool body and a pipe having external threads. The tool body abuts the liner and the boss. Winding the pipe exerts pressure on the liner, which when heated, forces the liner to mold to the shape of the boss.

This disclosure relates to a method and apparatus of preparing a molded article, and more particularly to a method and apparatus of automated molding using male molds and thermoplastic sheets in which the thermoplastic sheets are systematically draped across the mold contour.

This disclosure relates to a method and apparatus of preparing a molded article, and more particularly to a method and apparatus of automated molding using male molds and thermoplastic sheets in which the thermoplastic sheets are systematically draped across the mold contour.

A thermal/acoustic insulation product, such as for an aircraft, comprising a block of flexible, open-celled, cellular foam having a predefined shape and having a thermoformed amorphous film covering that completely envelops the foam block. A process for making the insulation product includes first cutting the block of foam to a predefined shape, such as a shape suitable for placement in an area of an aircraft in need of insulation. Then, a first sheet of film is heated to its melt point and conformed to a first surface area of the block, and a second sheet of film is heated to its melt point and conformed to a second surface area of the block, wherein the first film and the second film are joined to one another at one or more seams. The insulation product may then be installed in an aircraft.

A thermal/acoustic insulation product, such as for an aircraft, comprising a block of flexible, open-celled, cellular foam having a predefined shape and having a thermoformed amorphous film covering that completely envelops the foam block. A process for making the insulation product includes first cutting the block of foam to a predefined shape, such as a shape suitable for placement in an area of an aircraft in need of insulation. Then, a first sheet of film is heated to its melt point and conformed to a first surface area of the block, and a second sheet of film is heated to its melt point and conformed to a second surface area of the block, wherein the first film and the second film are joined to one another at one or more seams. The insulation product may then be installed in an aircraft.

A device for thermoforming containers, the device having mold blocks mounted to move in translation. An example embodiment may include at least first and second analogous mold blocks, a counter-mold, means for causing a thermoplastic material to advance along an advance axis, and two labeling blocks. The mold blocks can be moved in a first movement between a thermoforming level and a disengagement level. The mold blocks can also be moved in a second movement along an axis transverse to the advance axis so as to place each mold facing in succession the counter-mold and one of the labeling blocks.

A method for producing a thermoformed product on a single machine with several stations and with different tools includes the following steps: (a) melting and homogenizing plastic granules and providing the plastic melt at a preform station; (b) producing a preform at the preform station in a preform cavity; (c) transferring the preform by a transfer carrier to a thermoforming station at the same machine, the thermoforming station having a thermoforming tool having a thermoforming cavity; (d) preferably heating the preform during the transfer; (e) thermoforming of the thermoformed product in the thermoforming cavity. Advantageously, the final thermoformed product is produced directly from the plastic granules using only a single machine, and in particular without any waste, when the preform is dimensioned in such a way that it does not present any excess with respect to the final shape of the product to be produced.

A method for producing a thermoformed product on a single machine with several stations and with different tools includes the following steps: (a) melting and homogenizing plastic granules and providing the plastic melt at a preform station; (b) producing a preform at the preform station in a preform cavity; (c) transferring the preform by a transfer carrier to a thermoforming station at the same machine, the thermoforming station having a thermoforming tool having a thermoforming cavity; (d) preferably heating the preform during the transfer; (e) thermoforming of the thermoformed product in the thermoforming cavity. Advantageously, the final thermoformed product is produced directly from the plastic granules using only a single machine, and in particular without any waste, when the preform is dimensioned in such a way that it does not present any excess with respect to the final shape of the product to be produced.

A plastic sheet for manufacturing of a plurality of smart cards which respectively include a plurality of electronic units, includes a first sheet formed of a first material having a first hardness or a first Vicat softening temperature, the first sheet including a plurality of apertures and/or cavities. The plastic sheet includes a second material having, when the first material has the first hardness, a second hardness lower than the first hardness, and when the first material has the first Vicat softening temperature, a second Vicat softening temperature lower than the first Vicat softening temperature, the second material being located inside the apertures and/or cavities in the first sheet. The apertures and/or cavities with the second material located inside the apertures and/or cavities are configured to respectively receive said electronic units via an at least partial penetration from the electronic units into the second material.

A plastic sheet for manufacturing of a plurality of smart cards which respectively include a plurality of electronic units, includes a first sheet formed of a first material having a first hardness or a first Vicat softening temperature, the first sheet including a plurality of apertures and/or cavities. The plastic sheet includes a second material having, when the first material has the first hardness, a second hardness lower than the first hardness, and when the first material has the first Vicat softening temperature, a second Vicat softening temperature lower than the first Vicat softening temperature, the second material being located inside the apertures and/or cavities in the first sheet. The apertures and/or cavities with the second material located inside the apertures and/or cavities are configured to respectively receive said electronic units via an at least partial penetration from the electronic units into the second material.