초록 ▼

A dual or single wall coupling for a fuel line for capturing fluid in the event that leakage occurs at the main coupling and/or the primary tube comprising a lightweight slidable sleeve element shrouding the primary coupling engaging on its inner diameter axially spaced radial seals. The sleeve asse

A dual or single wall coupling for a fuel line for capturing fluid in the event that leakage occurs at the main coupling and/or the primary tube comprising a lightweight slidable sleeve element shrouding the primary coupling engaging on its inner diameter axially spaced radial seals. The sleeve assembly permits the utilization of commercially available standard couplings and eliminates the tedious assembly techniques required that were necessary heretofore.

대표청구항 ▼

A coupling for connecting tubing to a connector including a connector and a tubing, each having a passageway therethrough, said connector having a generally circular elongated body having said passageway in axial alignment with said passageway in said tubing, said connector having a threaded end, a

A coupling for connecting tubing to a connector including a connector and a tubing, each having a passageway therethrough, said connector having a generally circular elongated body having said passageway in axial alignment with said passageway in said tubing, said connector having a threaded end, a retractable nut adapted to threadably engage said threaded end, a ferrule member and means sealingly securing said ferrule member to the end of the tubing intended to be joined by said coupling, means on said nut cooperating with said ferrule to secure said ferrule in sealing engagement with said connector, an adapter having a circular cross section axially spaced from said ferrule and means sealingly securing said adapter to said tubing and a first radial seal supported in a recess formed in the outer diameter of said adapter, a second radial seal axially disposed relative to said first radial seal and supported in a recess formed in the outer diameter of said circular elongated body of said connector, the diameter of said first radial seal being substantially equal to the diameter of said second radial seal, a retractable sleeve-like element having a generally hollow cylindrical body being dimensioned to engage each of said radial seals spanning said ferrule when deployed in its operating condition for capturing and containing any leakage from said passageways.