Patent ID: 8272164

Claim:
A combination tilt/sash lock for mounting to a sash rail of a slideable and tiltable sash window, the combination comprising: (a) a first tilt lock mechanism having a tilt lock and a release button, the tilt lock being movable by the release button from a latched position to an unlatched position; the latched position including the first tilt lock mechanism preventing the sash from tilting; the unlatched position permitting the sash to tilt; and (b) a sash lock mechanism having a rotatable cam and a locking lever, the rotatable cam being movable by the locking lever between a locked position and an unlocked position; the locked position including the sash lock mechanism preventing the sash from sliding; the unlatched position permitting the sash to slide; (c) the locking lever and the release button being arranged in a superimposed linear relationship when the locking lever is in the locked position such that the locking lever blocks the tilt lock release button from being moved to the unlatched position.