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AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsChristian Rolland, Vincent Graziani, Pierrick Cohard, Rachid Makhlouche, Xavier Roussin-Bouchard
Estimating the term…
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.
A full hood respirator comprising a fluidtight flexible bag adapted and configured to be slipped over a head of a user, the flexible bag being provided with a transparent window and comprising, in a lower part of the flexible bag, a rigid base element comprising a tubular oxygen reservoir of pressurized oxygen provided with a calibrated outlet orifice opening into an internal volume of the flexible bag and two rigid curved tubular portions each having first and second ends, the first ends being connected by a ball joint equipped with a male component and a female component, each of the male and female components being situated on a respective one of the two rigid curved tubular portions, the second ends not being connected to one another, the two rigid curved tubular portions lying in a same plane and being pivotally movable relative to one another between, on one hand, a furled orientation of an open elliptical shape that prevents the head of the user from entering the hood through the base element and prevents pressurized gas from the oxygen reservoir from being placed in fluidic communication with the calibrated outlet orifice, and on the other hand, an unfurled orientation of an open ring shape intended to be positioned around a neck of the user and which allows pressurized gas from the oxygen reservoir to be in communication with the calibrated outlet orifice, and which allows the head of the user to enter the hood through the base element.
Dependencies are inferred from the claim text.