Patent ID: 11891868
Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. An assembly for performing a downhole operation, comprising:
a plug; and
a retrieving head rigidly coupled to the plug in a locked configuration, the retrieving head including a lock disposed therein comprising a housing having a bore, a mandrel movable within the bore, a ball seat in the bore secured to the housing at a first seat location via a snap ring disposed in a groove of the housing when the assembly is in the locked configuration, the snap ring being wrapped around a surface of the ball seat and against a ridge of the mandrel to prevent axial motion of the mandrel, wherein the ball seat is configured to receive a ball and to move within the housing due to an increase in a fluid pressure caused by the ball at the ball seat, thereby placing the assembly in an unlocked configuration that allows axial motion of the retrieving head, wherein movement of the ball seat from the first seat location allows the snap ring to collapse radially inward and out of the groove to free the mandrel for movement within the housing;
wherein the mandrel is configured to shift within the housing to allow the retrieving head to rotate with respect to the plug in the unlocked configuration.