Mining Patents (Class 434/390)
  • Patent number: 8100696
    Abstract: A training device for a self-rescuer is improved such that practical breathing parameters will become established. A granular filling of a material (7) is used that binds water molecules and generated heat of adsorption or heat of absorption in the process instead of an oxygen-releasing chemical.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: January 24, 2012
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Horst Wezurek, Miriam Dittrich