F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/47
F16L 55/00 (2006.01) F16L 37/62 (2006.01)
Patent
CA 1167082
ABSTRACT A high pressure coupling for releasably coupling high pressure tubular elements in sealed relationship, the coupling comprising a first tubular member having a socket formation, a second tubular member having a spigot forma- tion sealingly engaged with the socket formation in mating relationship therewith, one member having an annular recess and the other member having a radially directed annular bearing surface to cooperate with a locking sleeve, and a radially deformable locking sleeve posi- tioned in the annular recess, the locking sleeve being located against radial deformation out of the recess by the bearing surface engaging with the bearing surface of the locking sleeve. The coupling further includes bias means operative between the tubular members to provide a predetermined bias force to restrain axial separation of the mated formations. The tubular members of the coupling are axially separable upon application of an axial separa- tion force in excess of the predetermined bias force of the bias means for the bearing surface to disengage from the locking sleeve, and for the locking sleeve to be radially deformed out of the annular recess to release the member having the recess for the spigot formation to separate from the socket formation and permit automatic uncoupling of the coupling. The tubular members are further shaped to define an annular pressure balancing chamber which is in communication with the coupling bore and which is further defined by axially spaced radially extending pressure flanges which are associated with the members for pressure within the balancing chamber to act on the flanges for urging the members into mating engage- ment and at least partially balance the axial separation force generated by pressure in the coupling during use.
381438
Big-Inch Marine Systems Inc.
Riches Mckenzie & Herbert Llp
LandOfFree
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