Oxygen administration apparatus
OwnerPhilip Charles EASTinventor
Life of this patent
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Abstract
An oxygen administration apparatus comprises a source of oxygen, an oxygen administration device, a flexible oxygen-conducting tubing connectable at one end to the source of oxygen and an other end to the oxygen administration device. The connections are made through first and second firebreaks. The firebreaks and are valves that both contain a fusible stop. In the event of a fire in the vicinity of either firebreak, the resultant heat causes its stop to fuse. Thus, the supply of oxygen to the fire is stopped. The firebreaks both have connecting ends of different configuration. The first firebreak is also of different configuration from the second firebreak.
Claims17
Oxygen administration apparatus comprising a source of oxygen, an oxygen administration device, a length of flexible tubing for conducting oxygen from the source of to the administration device, a first connection of a first end of the length of tubing to the oxygen source, the first connection being made through a first firebreak, and a second connection of a second end of the length of tubing to the oxygen administration device, the second connection being made through a second firebreak, wherein both firebreaks take the form of a safety valve comprising a shuttle, a sealing member carried by the shuttle, means biasing the shuttle in a valve closing direction, and a fusible stop preventing closure of the valve, whereby fusing of the stop allows the biasing means to close the valve.
Dependencies are inferred from the claim text.