This fenestration locking system for a swinging sash or door is characterized by the use of a linear member running continuously from an actuating assembly to a locking pin assembly. The linear member can be a flexible linear member, allowing it to convey motion to the locking pin assembly around corners....http://www.google.es/patents/US7004515?utm_source=gb-gplus-sharePatente US7004515 - Fenestration locking system
