Patent ID: 7699365

Claim:
A sash lock for a sash window assembly comprising a housing; said housing comprising top plate, a front wall, and a first and second sidewall, joining said top plate and front wall, and thereby creating a cavity; mounted within said cavity is a locking assembly comprising an actuator, a first cam and a second cam, said first cam comprising unlock and a lock indicator surfaces; said actuator comprising a manually graspable portion and a shaft, said shaft extending through an orifice in said top plate and being adapted to move said first cam and said second cam, said first cam being adapted to engage, through an opening in said front wall, a keeper as said actuator is rotated from a first position to a second position, and said first cam being adapted to disengage the keeper as said actuator is rotated from said second position to said first position one of said top plate and front wall of said housing having a viewing orifice surface; said viewing orifice positioned such that only a portion of said unlock indication surface of said first cam indicating said sash lock is in an unlocked position is visible through said viewing orifice when said first cam is in a said first position, and only a portion of said lock indication surface of said first cam indicating said sash lock is in an locked position is visible through said orifice when said first cam is in second position.