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Inhalation responsive gas pressure regulator










Image Number 7 for United States Patent #4971108.

A breathing apparatus forms a second stage of an inhalation responsive gas pressure regulator. The inhalation diaphragm is in the form of a cylinder within which an arcuate assembly is positioned, the arcuate assembly opening a valve for permitting the introduction of air from a second stage into the casing during inhalation.








 
 
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