Patent ID: 8651538

Claim:
A lock comprising a casing; a cylinder rotatably mounted in the casing; a closure tongue non-rotatably mounted on one end of the cylinder; a knob mounted within the casing and on an other end of the cylinder, the knob linearly movable on the cylinder between two end positions, one end position being an unlocked position and an other end position being a locked position; the knob having a linear guide and the casing having a linear guide, the linear guide of the knob and the linear guide of the casing being geometrically arranged such that the linear guide of the casing engages the linear guide of the knob in the locked position and the linear guide of the casing is released from the linear guide of the knob in the unlocked position; the knob having a radial opening and the cylinder having a radial opening at the other end of the cylinder, the radial opening of the knob concentric with the radial opening of the cylinder in the locked position and the radial opening of the knob is offset from the radial opening of the cylinder in the unlocked position; and the cylinder having a cam and the casing having a cam, the cam of the cylinder and the cam of the casing being geometrically arranged such that the cam of the casing limit the rotation of the cylinder within the casing between the locked position and the unlocked position.