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    • 60. 发明公开
    • Quick-donning full face oxygen mask with inflatable harness and soft foldable lens
    • 氧气面罩快速拉紧带充气式头带和柔软可折叠遮阳板
    • EP0705622A1
    • 1996-04-10
    • EP95306811.1
    • 1995-09-27
    • PURITAN-BENNETT CORPORATION
    • McDonald, Thomas K.Hannah, Gary R.Stratman, Randy G.Jones, Gregory R.
    • A62B18/08
    • A62B25/005A62B18/02A62B18/082A62B18/084B64D10/00B64D2231/025
    • A mask and harness system for use in providing breathing oxygen and protection from pollutants for the eyes and respiratory system as might be encountered in high altitude aviation environments. In one preferred embodiment, the mask system has a face seal, a soft flexible lens, a pneumatically-actuated harness, and a regulator with microphone to control the flow of oxygen and to facilitate communications in aircraft flight decks and other aircraft compartments. The system is designed for required five-second donning with one hand and because of the flexible lens, is capable of storage in the relatively preferred on crowded flight decks. It is connected to an oxygen source and, optionally, with aircraft communications. The regulator controls the flow rate of oxygen to the wearer based on altitude and physiological requirements. The regulator includes a valve for purging the condensation-prone moist gases from the lens area and provides positive pressure in the mask. A second preferred embodiment molds the lens and mask seal of a single material having sufficient optical quality and flexibility to accomplish both purposes.
    • 从污染物对眼睛和呼吸系统提供呼吸用氧和保护在高海拔环境下航空业可能会遇到使用口罩和线束系统。 在一个优选实施例中,掩模系统具有面密封件,柔性软透镜,气动致动的线束,并用麦克风来控制氧气的流动并促进飞机飞行甲板和其他飞机隔室通信的调节器。 该系统被设计为用一只手和因为柔性镜片的需要五秒穿上时,能够存储在首选相对上拥挤的驾驶舱。 它在氧气源极连接到和,任选地,与飞机的通信。 所述调节器控制氧的流速,基于高度和生理要求佩戴者。 所述调节器包括用于从所述透镜区域吹扫缩合易潮湿气体的阀,并提供在掩模正压力。第二优选实施方式塑造具有足够的光学质量和灵活性以实现这两个目的的单一材料的透镜和面罩密封。