Patent ID: 6513838
Filing Date: 2003-02-04
Classification: B64D,F16L

Abstract:
A double-walled pipe connection arrangement comprising:a first inner pipe that has a first junction end, and that extends along a longitudinal pipe axis; a first outer pipe that has a first outer pipe end, and that is arranged surrounding at least a portion of said first inner pipe; a second inner pipe that has a second junction end releasably joined to said first junction end of said first inner pipe; a second outer pipe that has a second outer pipe end, and that is arranged surrounding at least a portion of said second inner pipe; a securing fixture that is stationarily arranged on said first inner pipe between said first junction end and said first outer pipe end, and that has at least one internally threaded hole therein; a first pipe connection member that surrounds said securing fixture and a portion of said first inner pipe between said first outer pipe end and said first junction end, that has at least one throughhole therein respectively in alignment with said at least one internally threaded hole in said securing fixture, and that is joined to said first outer pipe end; a threaded screw that passes through said throughhole and is thread-engaged into said internally threaded hole so as to secure said first pipe connection member to said securing fixture, wherein said threaded screw has a longitudinal screw axis oriented along or parallel to a radial line extending radially relative to said longitudinal pipe axis; and a second pipe connection member that surrounds said joined first and second junction ends of said first and second inner pipes, and that is respectively joined to said second outer pipe end and said first pipe connection member.