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Integrated breathing system

  • US 5,584,286 A
  • Filed: 08/18/1994
  • Issued: 12/17/1996
  • Est. Priority Date: 01/13/1993
  • Status: Expired due to Term
First Claim
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1. A portable system for providing air to a user in contaminated areas comprising a tight-fitting, washable, filterless air mask covering a user'"'"'s nose and mouth, and having right and left sides, an adjustable head strap attached to the mask for holding the mask firmly over a user'"'"'s nose and mouth, right and left air supply inlet and exhaust tubes connected to the sides of the mask and extending around right and left sides of a user'"'"'s head and check valves in the mask for controlling flow from and to the inlet and exhaust tubes and the mask respectively and for preventing contact of the valves with contaminated air, and for preventing airborne materials outside the mask from clogging the valves, the right and left inlet and exhaust side tubes connecting behind a user'"'"'s head to a main inlet tube and a coaxial exhaust tube, the main inlet and exhaust tubes being flexible and having distal ends connected to a releasable window mount.

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