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    • 9. 发明授权
    • Clean room helmet system
    • 洁净室头盔系统
    • US5046492A
    • 1991-09-10
    • US219220
    • 1988-07-15
    • Wyman H. StackhouseIan M. Williamson
    • Wyman H. StackhouseIan M. Williamson
    • A41D13/11A62B18/04
    • A42B3/286A41D13/1153A41D13/1184A62B18/04
    • There is described an improved clean room helmet system including a helmet having an inlet port and an exhaust port. Connected to the inlet port is a portable and mobile pressure filtering system for suppling filtered air to the helmet. A separate portable and mobile vacuum filtering system is connected to the outlet port on the helmet for exhausting and filtering all air removed from the interior of said helmet before exhausting the air into the atmosphere. All air fed to the helmet is filtered and all air exhausted from the helmet is filtered thereby protecting the user from breathing contaminated air. The system also protects those persons in the environment from air being exhausted from the helmet into the environment. A deflector located within the helmet prevents pressurized air entering the inlet port from being fed directly to the exhaust port located on the helmet.
    • 描述了一种改进的洁净室头盔系统,其包括具有入口和排气口的头盔。 连接到入口端口是便携式和移动式压力过滤系统,用于向头盔提供过滤空气。 单独的便携式和移动式真空过滤系统连接到头盔上的出口,用于在将空气排放到大气中之前对从头盔内部移除的所有空气进行排气和过滤。 所有进入头盔的空气都被过滤,从头盔排出的所有空气都被过滤,从而防止使用者吸入受污染的空气。 该系统还保护环境中的人员免受空气从头盔排放到环境中。 位于头盔内的偏转器防止进入入口的加压空气直接进入位于头盔上的排气口。