Abstract: The invention relates to a tank for storing cryogenic fluid, for example hydrogen or liquefied helium, having a storage shell with a cylindrical overall shape extending in a longitudinal direction that is horizontal when the tank is in the use configuration, the storage shell having, within it, a homogenization device for homogenizing the temperature of the fluid vertically in the tank, the homogenization device having at least one heat-transfer wall having a material with a coefficient of thermal conductivity of greater than 30 W·m?1·K?1, the transfer wall being arranged parallel to the longitudinal direction of the tank and extending vertically over 20 to 100% of the height of the storage shell and extending longitudinally over at least 50% of the length of the storage shell.

Abstract: Tank (1) for storing a liquefied fluid, for example liquid hydrogen, having an inner shell (11) intended to contain the liquefied fluid and an outer shell (12) intended to protect the inner shell (11), the inner shell (11) and the outer shell (12) being spaced apart by a gap (13) provided with a thermal insulation system, the inner shell (11) and the outer shell (12) respectively having an inner tubular central portion (111) and an outer tubular central portion (121) extending in a main direction (X) of the tank (1), the inner shell (11) and the outer shell (12) each also having opposite end-caps, respectively inner end-caps (112a, 112b) and outer end-caps (122a, 122b).

Abstract: A respiratory protection hood having a sealed flexible shell including a pressurized oxygen vessel provided with a calibrated output opening leading into the inside space of the flexible shell and a device for trapping at least one portion of the carbon dioxide exhaled by the user that includes a cartridge for adsorbing carbon dioxide having a perforated tube arranged around a volume of carbon dioxide absorbing material. At least one portion of the perforated tube being arranged around the volume of absorbent material in direct communication with the inside space of the hood.

Abstract: Full hood respirator comprising a fluidtight flexible bag intended to be slipped over the head of a user, the flexible bag being provided with a transparent window and comprising, in its lower part, a rigid base element of annular overall shape intended to be positioned around the neck of the user, the base element comprising a tubular oxygen reservoir of pressurized oxygen provided with a calibrated outlet orifice opening into the internal volume of the flexible bag, characterized in that the base element comprises at least two rigid parts connected by an articulation, the two parts being movable relative to one another between a furled first position that prevents a head from entering the hood through the base element and an unfurled position of use that allows a head to enter the hood through the base element.

Abstract: The invention relates to a respiratory protection hood which comprises a sealed flexible shell including a pressurized oxygen vessel provided with a calibrated output opening leading into the inside space of the flexible shell and a device for trapping at least one portion of the carbon dioxide exhaled by the user, comprising a cartridge for adsorbing carbon dioxide with a radial structure comprising a tubular body extending in a longitudinal direction and covering a volume of material which absorbs carbon dioxide, said structure of the cartridge comprising a perforated tube arranged around the volume of absorbent material and extending in the longitudinal direction to allow the transit of air to be purified radially in the volume of absorbent material, at least one portion of the perforated tube being arranged around the volume of absorbent material in direct communication with the inside space of the hood.

Abstract: Full hood respirator comprising a fluidtight flexible bag intended to be slipped over the head of a user, the flexible bag being provided with a transparent window and comprising, in its lower part, a rigid base element of annular overall shape intended to be positioned around the neck of the user, the base element comprising a tubular oxygen reservoir of pressurized oxygen provided with a calibrated outlet orifice opening into the internal volume of the flexible bag, characterized in that the base element comprises at least two rigid parts connected by an articulation, the two parts being movable relative to one another between a furled first position that prevents a head from entering the hood through the base element and an unfurled position of use that allows a head to enter the hood through the base element.