MOLDED NOSECUP VALVE ASSEMBLY

摘要

In a gas mask, a flexible nosecup is used to prevent humid air that is exhaled from contacting the eye pieces of the mask. The nosecup is equipped with a one-way valve to allow fresh air into the nosecup. The conventional rigid valve body attached to the nosecup is replaced with a valve body (44) molded integrally with the material of the nosecup and a valving element (54) with a concave disk (56) having its rim (60) seated on the annular valve seat (52) of the valve body (44).