Abstract: The invention relates to a powerful, robust and durable light-emitting diode lighting system with a protection rating of up to IP69, while maintaining a low manufacturing cost. It consists of an insulated metal substrate, on which at least one light-emitting diode is placed, supplied by a cable or a connector. The resulting circuit is then wrapped in a heat-shrinkable sheath, which will remove the air and dissipate the heat from the substrate and diodes in an optimal manner, the heat dissipation power thereof being about ten times that of air. Each end is then overmoulded, in order to make the system sealed and robust. The overmoulding can be used to add a sealing lip around the connector, as well as specific recesses to allow various attachment methods, individually or in groups. The device according to the invention is intended for domestic, industrial and horticultural lighting, depending on whether a translucent or transparent substrate is used.

Abstract: The invention relates to a powerful, robust and durable light-emitting diode lighting system with a protection rating of up to IP69, while maintaining a low manufacturing cost. It consists of an insulated metal substrate, on which at least one light-emitting diode is placed, supplied by a cable or a connector. The resulting circuit is then wrapped in a heat-shrinkable sheath, which will remove the air and dissipate the heat from the substrate and diodes in an optimal manner, the heat dissipation power thereof being about ten times that of air. Each end is then overmoulded, in order to make the system sealed and robust. The overmoulding can be used to add a sealing lip around the connector, as well as specific recesses to allow various attachment methods, individually or in groups. The device according to the invention is intended for domestic, industrial and horticultural lighting, depending on whether a translucent or transparent substrate is used.

Abstract: A hard disk assembly comprises a hub made of injection molded liquid crystal plastic, to which is mounted a magnetic disk by a twist-lock screw top. The expensive step of machining the critical hub component is avoided because sufficient accuracies can be achieved with the liquid crystal plastic when injection molded.

Abstract: A cartridge disk that includes a door assembly mounted in a combination base and cover shell. The door assembly mounted in a combination base and cover shell. The door assembly has a single lever that opens both doors at once to allow for mounting of the cartridge disk to a drive. The cartridge disk includes a plastic hub and an aluminum disk.

Abstract: A cartridge disk for the magentic storage of computer data includes a rotatable hard disk platter with a hub of liquid crystal plastic injection-molded to tolerances of twenty-five micrometers. Such material used in molds avoids expensive machining. An electrically-conductive shell enclosure encases the hard disk platter between a cover piece and a base piece. A door assembly with upper and lower doors which pivot open on parallel axes is mounted to an open end of the shell enclosure. A single lever connected to the door assembly is positioned to engage a pin mounted in a mating disk drive automatically opens the doors when the disk is inserted into the drive. Outside the drive the doors close to seal out contamination particles that could foul the hard disk platter. An electrostatic filter in the shell enclosure is strategically placed to clean the air circulated within the cartridge disk during operation.