Abstract: A joint for a double wall tube assembly includes an adapter having an inner wall and an outer wall connected by a web, and a flange extending from the outer wall. The inner wall is configured to receive an inner tube of a double wall tube assembly. The outer wall is configured to be connected to an outer tube of the double wall tube assembly.

Abstract: A coupling assembly is provided for releasably interconnecting confronting ends of conduit members. The coupling assembly creates a self-locking, and self-bonding connection wherein locking and unlocking is achieved by a predetermined amount of rotation of a lock nut group with respect to a stationary threaded flange. The overall construction of the coupling assembly creates the rigid connection between the conduit members, yet adequate sealing between the conduit members is provided by a single sealing member.

Abstract: A conduit coupling assembly is provided for interconnecting a pair of fluid conveying members placed in a confronting relationship within the coupling assembly. The coupling assembly includes a longitudinally split coupler having a pair of coupling halves rotatable about a hinge. A plurality of engagement members are mounted on the respective coupling halves for connecting the coupling halves. Electrical conductivity is maintained across the coupling assembly by a bonding wire on each of the coupling halves. Each bonding wire provides multiple points of contact with the metallic flanges of the fluid carrying members. Optionally, the flanges of the fluid carrying members and the coupling assembly may be coated with a conductive coating thereby providing a redundant means to prevent buildup of an electrostatic charge.