F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/47.4
F16L 37/00 (2006.01) F16L 17/10 (2006.01) F16L 37/06 (2006.01) F16L 37/08 (2006.01)
Patent
CA 1201464
PULLOUT RESISTANT PIPE COUPLING Abstract of the Disclosure An improved construction for resisting pipe pullout in a pipe coupling of a type subject to being inwardly swaged in the course of forming a coupled joint. A circumferentially extending lock ring having a plurality of axially spaced chisel shaped teeth on its inward face is inwardly dished about its periphery. The ring is axially located within the coupling shell by an annular inwardly extending protuberance on the inner face of shell interfitting within the dished section of the ring periphery. In response to an imposed swaging force, the coupling shell is constricted inwardly to compress a gasket into sealing engagement with a contained pipe section, while the lock ring is concomitantly constricted inwardly into a gripping interlock therewith.
406900
Dresser Industries Inc.
Macrae & Co.
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