초록 ▼

A quick-disconnect fitting for quick connection or disconnection of an oxygen line, for receiving a gas line plug of the type having a plug flange to provide gas to an oxygen line terminated by the plug. A metal valve body has a threaded inner end for being threadably received by a source of pressur

A quick-disconnect fitting for quick connection or disconnection of an oxygen line, for receiving a gas line plug of the type having a plug flange to provide gas to an oxygen line terminated by the plug. A metal valve body has a threaded inner end for being threadably received by a source of pressurized oxygen and an outer end carrying a molded plastic cap having a receptacle for receiving the plug. The valve body includes a plunger-type valve axially shiftable therein between open and closed positions, the valve carrying at its upper end a poppet for sealing engagement with a valve seat of the valve body when the valve is closed. A compression spring surrounds the valve for urging it into closed position. A nose of the plug engages and maintains open the valve member when the plug is received within the cap for receiving gas from the source. The cap carries a locking plate for selective locking engagement with the plug flange when the plug is received. The cap receptacle is cross-sectionally configured for unique mutual engagement of the plug for preventing its connection to an improper source.

대표청구항 ▼

A quick-disconnect fitting of fail-safe character for quick connection or disconnection of a gas line, such as an oxygen line, and adapted for receiving a gas line plug of the type having a plug flange, thereby to provide gas to a line terminated by the plug, characterized by the fitting comprising

A quick-disconnect fitting of fail-safe character for quick connection or disconnection of a gas line, such as an oxygen line, and adapted for receiving a gas line plug of the type having a plug flange, thereby to provide gas to a line terminated by the plug, characterized by the fitting comprising a metal valve body having an inner end externally threaded for being threadably received by corresponding structure of a source of gas under pressure and an outer end to which is secured in non-threaded engagement a cap having a receptacle for receiving the gas line plug, the valve body including a plunger-type valve axially contained internally within the valve body in protected relationship, the valve body being shiftable within the valve body between open and closed positions, the valve carrying at its inner end seal means for sealing engagement with the valve body when the valve is closed, a compression spring surrounding the valve for urging it into close position, the plug including a nose for engaging and maintaining open the valve when the plug is received within the cap for receiving gas from the source, the cap carrying locking means for selective locking engagement with the plug flange when the plug is received by the cap, the cap receptacle being laterally cross-sectionally configured for unique mutual engagement of the plug to prevent improper connection thereof, the cap being of molded synthetic resin material, and means for securing the cap about the periphery of only the outer end of the valve body, whereby if the cap is broken away from the valve body, the valve will remain within the valve body in closed, protected condition without permitting escape of gas from the source through the fitting.