Locking assembly for push-on fittings

A locking assembly for securing the connection between a push-on fitting having a flared end fitted into a cage and surrounded by a garter-type coil spring housed within the cage of a pipe with a resilient O-ring sealing the connection between the push-on fitting and the pipe comprising

• an axially split externally threaded male fitting, the two halves of said split male fitting being sized to snugly encircle the push-on fitting with one end of each of the two halves resting against the flared end of the push-on fitting and forcing the coil spring away from the push-on fitting,
• an axially split and internally threaded locking nut, the two halves of said nut formed to snugly encircle the cage housing the coil spring while the threads of the two halves of the nut engage and mesh with the threads of the two halves of the male fitting, and
• means for securely joining together the two halves of the locking nut,
• whereby inwardly directed pressure is applied to the outside surface of the push-on fitting to exert an inwardly directed pressure on the O-ring and the pipe.

A locking assembly for securing the connection between a push-on fitting having an outwardly flared end fitted into a cage and surrounded by a garter-type coil spring housed within the cage of a pipe with a plurality of resilient O-rings sealing the connection between the push-on fitting and the pipe comprising

• an axially split externally threaded male fitting, the two mirror-image halves of said split male fitting being sized to snugly encircle the push-on fitting with one end of each of the two halves lying within the cage and resting against the flared end of the push-on fitting and forcing the coil spring away from the push-on fitting, and
• an axially split and internally threaded locking nut, the two mirror-image halves of said nut sized to snugly encircle the cage housing the coil spring while the internal threads of the two halves of the nut engage and mesh with the external threads of the two halves of the male fitting,
• the two halves of the locking nut being securely joined together by a pair of screws threaded into aligned holes in both halves of the locking nut, said aligned holes running transverse to the axis of the locking nut,
• whereby inwardly directed pressure is applied to the outside surface of the push-on fitting to exert an inwardly directed pressure on the O-rings and the pipe.