Patents Assigned to Kemira Safety Oy
  • Gas mask with electronic blower control
    Patent number: 5671730
    Abstract: The invention relates to a method for regulating the rate of air fed into a gas mask, as well as to a gas mask. The power of the gas mask blower is regulated on the basis of the current and rotation speed of the blower. The invention can be applied in any facial parts of breathing masks.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: September 30, 1997
    Assignee: Kemira Safety Oy
    Inventor: Rauno Ollila