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Self-contained breathing system

  • US 8,113,198 B2
  • Filed: 01/15/2010
  • Issued: 02/14/2012
  • Est. Priority Date: 08/22/2003
  • Status: Active Grant
First Claim
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1. A breathing apparatus, comprising:

  • a chassis including a housing defining a breathing reservoir, a first inlet in fluid communication with said breathing reservoir for receiving breathable gas from a self-contained source of breathing gas, a second inlet in fluid communication with said breathing reservoir for receiving ambient air, and a first outlet in fluid communication with said breathing reservoir for delivering breathable gas to a user;

    a suction source mounted within said chassis and in fluid communication with said second inlet for drawing ambient air into said breathing reservoir;

    a main filter assembly positioned between said second inlet and said breathing reservoir for removing contaminants from the ambient air; and

    said chassis adapted to accommodate a plurality of breathing gas container sizes.

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