Abstract: A gas generator includes a substantially cylindrical cup with bottom where a gas generating agent is accommodated, the cup including one axial end as an opening end, and a substantially columnar holder to which the cup is coaxially assembled to close the opening end, the holder holding an igniter such that an ignition portion faces the gas generating agent. An annular step portion is provided at a periphery of an axial end of the holder on a side facing the cup. The cup is fixed to the holder by fitting the opening end to the annular step portion and providing an annular welded portion at the opening end, the annular welded portion being joined to the annular step portion so as to extend along a circumferential direction of the cup.

Abstract: Device for multicast of optical signals in the Internet and other networks is formed by an electronic part and an optical part. The electronic part consists of a control module, an interface module formed by a power supply block, a block for measuring basic operational parameters of the whole device and an interface, and by a power supply part. The power supply block of the interface module is connected to the power supply part, to the optical part and to the control module. The interface is connected to the optical part and to the control module, and the block for measuring basic operational parameters of the whole device is connected to the power supply part and to the control module. Input/output interfaces involving a standard interface for communication with a user and/or an interface for communication in an Ethernet network and/or an interface via RS 232 and/or an interface for communication via a serial USB bus are connected to the control module.

Abstract: Device for multicast of optical signals in the Internet and other networks is formed by an electronic part and an optical part. The electronic part consists of a control module, an interface module formed by a power supply block, a block for measuring basic operational parameters of the whole device and an interface, and by a power supply part. The power supply block of the interface module is connected to the power supply part, to the optical part and to the control module. The interface is connected to the optical part and to the control module, and the block for measuring basic operational parameters of the whole device is connected to the power supply part and to the control module. Input/output interfaces involving a standard interface for communication with a user and/or an interface for communication in an Ethernet network and/or an interface via RS 232 and/or an interface for communication via a serial USB bus are connected to the control module.