Conduit gripping device having retaining structure for conduit fitting

摘要

The disclosure presents exemplary embodiments of a cartridge nut concept for conduit fittings. The cartridge nut concept may include the feature of loosely retaining one or more conduit gripping devices with a fitting component such as a male or female threaded nut. The cartridge nut concept may be realized using one or more geometry or shape features or characteristics of one or more conduit gripping devices. Still further, the cartridge nut concept may be realized in combination with a ferrule cartridge concept.

主权项

1. A fitting assembly for conduits, comprising:
a male threaded first fitting component to be assembled with a female threaded second fitting component, to provide an interior volume, a front ferrule and a back ferrule both disposed entirely in said interior volume, said second fitting component comprising a drive surface that engages, a back wall of said back ferrule when the fitting assembly is pulled-up, a retaining structure that retains said front ferrule and said back ferrule with said second fitting component as a subassembly prior to said first fitting component being assembled with said second fitting component, said front ferrule comprising an outer wall, said retaining structure comprising a recess in said outer wall of said front ferrule and a retaining member that cooperates with said recess to retain said front ferrule and said back ferrule with said second fitting component as a subassembly prior to said second fitting component being assembled with said first fitting component.