Some embodiments of the cable lock provide a body defining a housing in which a cable can be received to lock the cable lock. In some embodiments, the cable is rotatable with respect to the housing when the cable lock is in a locked state, thereby increasing the difficulty of circumventing the lock....http://www.google.es/patents/US7478847?utm_source=gb-gplus-sharePatente US7478847 - Cable lock and method