Patent ID: 8132435

Claim:
A locking apparatus for securing a roller shutter within a guide channel having an aperture formed therein, the locking apparatus comprising: a hollow tubular body having an enlarged end and an elongated section sized to fit within the aperture, the tubular body further including a tapered member fixed therein and a radial opening; a threaded locking member coaxial with the tubular body having a head portion and an elongate threaded shaft extending past the tapered member; an advancer threadedly connected to the threaded shaft such that the advancer is enabled to move axially along the shaft as the shaft rotates; and a arm having a pivot end connected to the advancer and a free end oriented between the advancer and the enlarged end, so that when the advancer is spaced away from the enlarged end the arm is retained within the tubular body, and when the advancer moves towards the enlarged end the arm cooperates with the tapered member to extend radially outward through the radial opening.