Patent ID: 7640830

Claim:
A locking adjustment turret comprising: a rotating adjustment portion mounted in a stationary portion and carrying a locking mechanism, the rotating adjustment portion including an engagement portion that is moved axially when the rotating adjustment portion is rotated, the locking mechanism substantially preventing rotation of the rotating adjustment body when engaged; wherein the locking mechanism includes a detent pin projecting from a detent body carried in the rotating adjustment portion, a lock body on which a lock knob is mounted and from which a lock pin projects toward the detent body, the lock body being carried in the rotating adjustment portion such that rotation of the lock knob moves the lock pin axially toward and away from the detent body, rotation of the lock knob in one direction moving the lock pin into engagement with the detent body and preventing motion of the detent body, thereby retaining the rotating adjustment portion in a position; wherein the rotating adjustment portion includes a shaft and a main body, the main body carrying the locking mechanism and the shaft carrying the engagement portion; wherein the main body includes an axial bore in an upper portion thereof and in which the lock body is mounted and retained; and wherein the lock body includes a lock knob mount projecting from a main lock body portion, the main lock body portion also supporting the lock pin and having a diameter larger than the lock knob mount, the locking mechanism further comprising a lock body retaining device mounted in the upper portion of the rotating adjustment portion main body so that the main lock body is prevented from exiting the bore in which it is mounted.