Surgery – Respiratory method or device – Means for quickly connecting or disconnecting apparatus...
Patent
1986-02-24
1987-12-22
Coven, Edward M.
Surgery
Respiratory method or device
Means for quickly connecting or disconnecting apparatus...
12820418, 12820524, A62B 904, A62B 700
Patent
active
047140771
ABSTRACT:
A high pressure breathing gas transfer system is provided where high pressure air from a tank of one SCBA, or a central storage supply, can be quickly transferred directly into the high pressure air tank of a second SCBA. The transfer process, between two SCBA's, is accomplished by attaching a high pressure conduit line between two quick connect check valves situated on the high pressure sides of the SCBA's. The high pressure transfer line has a quick connect coupling attached to each end to enable connection to the check valves. After the line is attached, a lever is depressed on donor couplings to open the donor check valve. High pressure air then flows out of the donor tank and forces the check valve open on the donee tank. The air transfer continues until the internal pressure of the two tanks is equalized and the donee tank has received half of the air that was initially inside the donor tank. Because the air is transferred on the high pressure side of the regulator, the system may be used to accomplish buddy-breathing between two SCBA users in emergency situations, without interfering with the normal breathing operation of the SCBA' s.
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Coven Edward M.
Mine Safety Appliances Company
Reichle K. M.
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