Abstract: A portable device for inflating at least one envelope includes an inlet for surrounding air (1), at least one nonreturn valve, at least one compressed gas inlet (2), at least one intake chamber (3), at least one connection, such as an acceleration cone (5), with a longitudinal median symmetry axis (X, X?), arranged in the extension of at least one intake chamber (3), and connected to at least one inflatable envelope, and an intermediate chamber connecting at least one compressed gas inlet (2) to at least one intake chamber (3). The intermediate chamber and the at least one intake chamber (3) are separated by a wall arranged transversely to the axis (X, X?) and connected by at least one orifice located in the transverse wall (8).

Abstract: A portable safety device (100) for inflating multiple envelopes includes at least one inlet for surrounding air (1), at least one inflation system, at least one enriched air or gas zone, at least one nonreturn valve (2), at least one connector (3) connected to the at least one inflatable envelope (4). The device also includes at least one separation wall (8), which compartmentalizes at least the end of at the connector (3) opening into at least two substantially hermetically independent inflatable envelopes (4).

Abstract: A portable device for inflating at least one envelope includes an inlet for surrounding air (1), at least one nonreturn valve, at least one compressed gas inlet (2), at least one intake chamber (3), at least one connection, such as an acceleration cone (5), with a longitudinal median symmetry axis (X, X?), arranged in the extension of at least one intake chamber (3), and connected to at least one inflatable envelope, and an intermediate chamber connecting at least one compressed gas inlet (2) to at least one intake chamber (3). The intermediate chamber and the at least one intake chamber (3) are separated by a wall arranged transversely to the axis (X, X?) and connected by at least one orifice located in the transverse wall (8).

Abstract: A portable safety device (100) for inflating multiple envelopes includes at least one inlet for surrounding air (1), at least one inflation system, at least one enriched air or gas zone, at least one nonreturn valve (2), at least one connector (3) connected to the at least one inflatable envelope (4). The device also includes at least one separation wall (8), which compartmentalizes at least the end of at the connector (3) opening into at least two substantially hermetically independent inflatable envelopes (4).