Quick-disconnect fitting for gas line connection
US4613112A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1985 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Jul 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1789
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.