×

BREATHING APPARATUS AND METHOD FOR THE USE THEREOF

  • US 20130118498A1
  • Filed: 11/02/2012
  • Published: 05/16/2013
  • Est. Priority Date: 11/03/2011
  • Status: Active Grant
First Claim
Patent Images

1. A breathing apparatus comprising:

  • an inner volumetric member pressurizable from a first pressure to a second pressure;

    an outer volumetric member surrounding at least a portion of said inner volumetric member, wherein said inner volumetric member pressurizes said outer volumetric member as said inner volumetric member is pressurized from said first pressure to said second pressure;

    an expiratory flow path communicating with said inner volumetric member;

    a pressure relief valve communicating between said inner volumetric member and ambient air at a location spaced from said expiratory flow path member;

    an inspiratory flow path communicating with said outer volumetric member; and

    at least one intake portal communicating with said outer volumetric metric member.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×