Patent ID: 8356795

Claim:
A bonnet assembly for use with a fluid valve, comprising: a bonnet defining a passage to receive at least a portion of a shaft of the fluid valve, wherein the bonnet is to be removably coupled to the fluid valve; and a retaining assembly mounted in the bonnet to be substantially not exposed to a flow of fluid through the fluid valve, the retaining assembly is to be retained in the bonnet by a cap, wherein an interaction between the retaining assembly and the cap is to provide blowout protection and to control an amount of movement of the shaft along a longitudinal axis of the shaft to enable an alignment of a sealing element coupled to an end of the shaft relative to a seating surface of the fluid valve, wherein the retaining assembly comprises a groove in the shaft and a plurality of ring segments at least partially in the groove, a portion of the plurality of ring segments extends from the groove and engages a surface in the bonnet.