A locking mechanism for securing personal portable valuables having a security or restraining slot comprises a generally hook-shaped restraining member having a moveable inner flange mounted in a housing, a shank section adapted to extend into the restraining slot of the portable device, and a hook section...http://www.google.fr/patents/US6212918?utm_source=gb-gplus-shareBrevet US6212918 - Locking mechanism for portable valuables