Pipe coupling for lap joints

Details Pipe coupling for lap joints Pipe coupling for lap joints

F - Mech Eng,Light,Heat,Weapons

16

L

285/62

F16L 21/00 (2006.01) F01N 13/18 (2010.01) F16L 25/14 (2006.01)

Patent

CA 1127682

PIPE COUPLING FOR LAP JOINTS ABSTRACT A coupling for a pipe lap joint is disclosed in which a sleeve has a larger diameter at one end and a smaller diameter at the other end with means for stretching the sleeve around the pipes. The sleeve has a radially projecting channel shaped sector and force applying means engages the sector to stretch the sleeve around the pipes. The channel shape sector is uniform cross section along the length of the sleeve and the larger end of the sleeve is axially offset from the smaller end. An improved method for making the pipe coupling is disclosed in which a sleeve blank is dis- posed in an external die and stretched outwardly by an expanding mandrel.

341260

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