F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/31
F16L 33/00 (2006.01) F16L 13/14 (2006.01) F16L 33/30 (2006.01) F16L 47/06 (2006.01)
Patent
CA 1055067
ABSTRACT An insert for use in a pipe coupling of the type comprising an insert for insertion into the end of a pipe, a member having a tubular portion for reception of an end portion of the pipe containing the insert, and a sleeve for engagement about the tubular portion thereby to trap the pipe between the tubular portion and the insert, and thereby connect the member to the pipe, the insert comp- rising a cylindrical cross-section tubular member the outer surface of which comprises a first portion extending from one end of the insert and having a uniform diameter; a second, intermediate portion extending from the first portion and having a plurality of relatively wide, arcuate cross-section annular grooves therein; and a third portion extending from the intermediate portion and having a plurality of relatively narrow straight sided and bottomed annular grooves therein, the side of each groove in the third portion facing away from the first and second portions extending substantially perpendicularly of the longitudinal axis of the insert.
268976
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