Face piece seal check device

A - Human Necessities – 62 – B

Patent

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Details

A62B 9/02 (2006.01)

Patent

CA 2624337

A sealing device for positive pressure testing is attached to a respirator face mask and includes an outer frame integrally joined to a movable cap by a flexible link that biases the cap in an open position for the operational use of the face mask against a manually applied force to move the cap to a sealed position for the positive pressure testing to assure the proper fit of the face mask on the wearer. The method for positive pressure testing includes flexibly moving the sealing device from the open position to the sealing position such that the sealing surface of the cap seals the exhalation valve assembly closed. The wearer then exhales into the mask to test the seal of the mask. When the test is completed, the sealing device is released and the inherent biasing force moves the cap from the sealing position to the open position.

La présente invention concerne un dispositif de fermeture pour tester la pression positive fixé à un masque facial de respiration et comprenant un cadre extérieur intégralement joint à un calot mobile par un lien flexible inclinant le calot dans une position ouverte pour utiliser de façon fonctionnelle le masque facial contre une force appliquée manuellement pour déplacer le calot vers une position étanche pour en tester la pression positive pour garantir que le masque facial est bien adapté à l'utilisateur. Le procédé pour tester la pression positive comprend le déplacement flexible du dispositif de fermeture de la position ouverte vers la position fermée de sorte que la surface de fermeture du calot ferme l~ensemble de vanne d~exhalation de façon étanche. La personne portant le masque exhale alors dans le masque pour en tester l~étanchéité. Lorsque le test est fini, le dispositif de fermeture est relâché et la force oblique inhérente déplace le calot de la position fermée dans la position ouverte.

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