| 摘要 |
<p>The disclosure of this specification teaches the use of a regulator for a self-contained breathing apparatus for attachment to a user's back. The regulator includes a high pressure entrance thereto which is adapted to receive high pressure breathing gas from a source of breathing gas under pressure. A poppet is provided, which poppet has a valving surface. A conduit has a valve seat which is adapted to receive the valving surface thereover. A linkage operatively moves the poppet. Connected to the linkage is a spring loaded member exposed to ambient pressure. An elastomeric flexible member is attached to the ambient pressure member, which flexible member deforms under varying pressures between the ambient condition of the intermediate pressure which has been regulated by the regulator.</p> |
