Patent ID: 9155924
Filing Date: 2015-10-13
Classification: A42B,A61M,A62B

Abstract:
1. A modular chemical-biological headgear system, comprising: a helmet liner that is adapted to conform generally to the shape of a wearer's head and which includes a longitudinal cavity adapted for removable installation of a longitudinal duct, and a rear lateral cavity adapted for removable installation of a lateral duet and a modular filter; a facemask module that is releasably attachable to the helmet liner and is adapted to be sealable to the face of the wearer; an exhaust port to enable exhausted air to be vented from the facemask module; a nose cup assembly that is adapted to form a seal over the wearer's nose and mouth and is pneumatically coupled to the exhaust port to prevent exhausted air from circulating inside the facemask module; and wherein when installed said longitudinal duct is disposed in said longitudinal cavity and couples to the lateral duct and facemask module to convey filtered air from the modular filter to the facemask module, and wherein the longitudinal duct and modular filter are removable from the helmet liner.