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    • 2. 发明申请
    • GAS MASK
    • 防毒面具
    • US20110209712A1
    • 2011-09-01
    • US13019745
    • 2011-02-02
    • Alexander BUSCHDirk FEIL
    • Alexander BUSCHDirk FEIL
    • A62B18/10
    • A62B9/02A62B18/10
    • A gas mask is provided for normal-pressure and overpressure operation with at least one breathing port, an expiration valve with a valve spring, an adjusting element affecting the prestress of the valve spring and a pushing element having a first switching position and a second switching position. The pushing element is designed to act on the adjusting element during a translatory motion from the first switching position into the second switching position. A change in the prestress of the valve spring can be brought about and a switchover from a “normal pressure” mode into an “overpressure” mode can thus be carried out.
    • 为正常压力和超压操作提供防毒面具,具有至少一个呼吸端口,具有阀弹簧的呼气阀,影响阀弹簧预应力的调节元件以及具有第一开关位置和第二开关 位置。 推动元件设计成在从第一切换位置到第二切换位置的平移运动期间作用在调节元件上。 可以实现阀弹簧的预应力的变化,从而可以进行从“常压”模式向“过压”模式的切换。