Patent ID: 7730895

Claim:
A hair styling appliance comprising: a first arm having a pivot end and a facing surface; a second arm having a pivot end and a facing surface, the second arm coupled to the first arm such that the facing surfaces of the arms face each other, and the second arm movable with respect to the first arm about a pivot wherein the second arm is movable between an open position and a closed position, the second arm having a longitudinal dimension that is smaller than a longitudinal dimension of the first arm; wherein the pivot end of the first arm extends beyond the pivot and the pivot end of the second arm; a gap positioned between the facing surface of the first arm and the facing surface of the second arm; and a lock member positioned on the pivot end of the first arm beyond the pivot and extending from the facing surface of the first arm, the lock member movable into and out of the gap between a locked position and an unlocked position, wherein in the locked position, the lock member holds the second arm in the closed position wherein the lock member includes a knob portion that is positioned on a lock platform, the knob portion including at least one flange configured to slide relative to a locking brace of the lock platform and to engage a portion of the locking brace to prevent over-rotation of the lock member.