Assembly for protecting an individual, comprising an insulation suit

Abstract

A personal protective ensemble including a sealed suit having at least one area intended to enclose the wearer's head, the suit being equipped with connection means intended to be connected to a pressurized air source, the ensemble including a protective device having a sealed hood which, arranged underneath the sealed suit, is equipped firstly with means for feeding air to the hood volume and connected to the connection means of the suit, and secondly with means for supplying outside air to the suit via an air intake that is shut and can be opened, arranged in the suit, filtering means and a mouth-piece.

1 . Personal protection ensemble comprising:
 a sealed suit having at least one area intended to enclose the wearer's head, the suit being equipped with connection means, intended to be connected to a pressurized air source,   a protective device comprising an insulating hood which, arranged underneath the sealed suit, is equipped firstly with air supply means supplying a hood volume and connected to the connection means of the suit, and secondly with means for supplying outside air to the suit via an air intake that is shut and can be opened, arranged in the suit, filtering means and a mouth-piece.   
     
     
         2 . The ensemble according to  claim 1 , wherein the suit comprises at least one removable band placed facing the filtering means arranged to filter air outside the hood and/or facing exhaust means for evacuating exhaled air outside the hood, the removable band being capable, after removal, of releasing an air passage opening. 
     
     
         3 . The ensemble according to  claim 1 , wherein the suit is equipped with at least one ventilation duct connected to the connection means and designed to direct part of the pressurized air into an inner volume of the suit. 
     
     
         4 . The ensemble according to  claim 1  to  3 , wherein the suit comprises a release valve arranged to allow the release of the air contained in the suit towards the outside, when it exceeds a determined pressure value. 
     
     
         5 . The ensemble according to  claim 1 , wherein the mouth-piece is connected firstly to the filtering means via an air intake conduit and secondly to exhaust means to evacuate exhaled air to outside the hood, via an air exhaust conduit, the mouth-piece being equipped with means selectively allowing, during a wearer's inhalation phase, arrival of air in particular via the air intake conduit and the mouth-piece and, during the wearer's exhalation phase, evacuation of air in particular via the mouth-piece and the air exhaust conduit. 
     
     
         6 . The ensemble according to  claim 5 , wherein the air intake conduit and the air exhaust conduit are flexible conduits. 
     
     
         7 . The ensemble according to  claim 1 , further comprising a release valve arranged to allow release of the air contained in the hood towards the outside, when it exceeds a determined pressure value. 
     
     
         8 . The ensemble according to  claim 1 , further comprising display means to display pressure of air derived from the pressurized air source. 
     
     
         9 . The ensemble according to  claim 1 , wherein the protective device comprises means for attachment to the wearer comprising a back part intended to rest against the wearer's back, from which there extends at least one attachment strap intended to be passed under the wearer's armpit, and a front part intended to rest against the wearer's chest, the attachment strap being attached to the front part in a position of use of the protective device. 
     
     
         10 . The ensemble according to  claim 9 , further comprising a first and a second attachment strap, each intended to be passed under the wearer's armpits. 
     
     
         11 . The ensemble according to  claim 1  to  10 , wherein the hood is equipped with a neckband made in a flexible material, designed to insulate an inner volume of the hood. 
     
     
         12 . The ensemble according to  claim 1 , wherein the hood comprises a removable band capable, after its removal, of releasing an opening to access an inside of the hood.