Patent ID: 8245772

Claim:
A rotating head assembly apparatus through which a drill string may extend, the apparatus comprising: an outer barrel having a passage through which the drill string may extend; an inner barrel having a passage through which the drill string may extend, the inner barrel configured to pass into the outer barrel; a box assembly having at least one locking aperture, the locking aperture configured to store at least one locking element, wherein at least a portion of the box assembly inserts between the inner barrel and the outer barrel; the locking element stored within the locking aperture; a liner configured to be inserted between the box assembly and the inner barrel wherein the liner biases the locking element into a locking aperture of the outer barrel to releasably attach the box assembly to the outer barrel, the liner maintaining the locking element in the locking aperture while the liner is inserted between the box assembly and the inner barrel.