F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/39
F16L 21/00 (2006.01) F16L 27/02 (2006.01) F16L 27/053 (2006.01) F16L 27/08 (2006.01)
Patent
CA 1156286
ABSTRACT OF THE DISCLOSURE A novel ball-and-socket-type pipe coupling is provided herein for interconnecting a first pipe with a second pipe. It includes a first socket housing fixedly mounted to an end of the first pipe; a second socket housing fixedly mounted to an end of the second pipe; each of the first and second socket housings having a spherical concave surface formed internally thereof; a single piece of joint pipe of simple cylin- drical construction having opposite free end sections; one of the free end sections extending into the first socket housing and the other of the free end sections extending into the second socket housing; a first ball member including an annular member mounted on the one of the free end sections and having a spherical outer surface disposed in spherically sliding contact with the concave surface of the first socket housing; and a second ball member including an annular member mounted on the other of the free end sections and having a spherical outer surface disposed in spheri- cally sliding contact with the concave surface of the second socket hous- ing. The joint pipe is angularly movable in accordance with spherical sliding movement of the first and second ball members with respect to the housing, while maintaining parallel relationship between the first and second pipes. Each of the first and second ball members includes a front end section including an annular projection extending radially in- wardly and having a first internal annular wall, a rear end section which is formed with an annular extension extending radially inwardly and having a second internal annular wall, and an annular hollow space ex- tending between the first and second internal annular walls. A first stop member is fixedly mounted on the one of the free end sections of the joint pipe and is disposed within the annular hollow space of the first ball center. A second stop member is fixedly mounted on the other of the free end sections of the joint pipe and is disposed within the annular hollow space of the second ball member, preferably also in its center. The joint pipe is telescopically slidable in its axial directions with respect to the first and second ball members within a limited range. The coupling is particularly advantageous when utilized in places where it is necessary to connect a pair of parallel pipe lines lying on two different planes or it is expected that a pair of connected pipe lines might be subjected to dislocation by an earthquake, subsiding of ground, or considerable weight, shocks or vibrations. The pipe coupling is also very useful in repairing such pipe lines that have been misaligned or actually affected by dislocation or subsiding of ground.
363276
Borden Ladner Gervais Llp
Kabushiki Kaisha Suiken
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