A cable guardrail release system includes a first number of anchor posts installed adjacent a roadway. Each of the first number of anchor posts secures an end of a respective cable. Each anchor post is operable to release the respective cable secured by the anchor post upon a vehicle impact to the anchor...http://www.google.es/patents/US20030213946?utm_source=gb-gplus-sharePatente US20030213946 - Cable guardrail release system
Número de solicitud: 10/355,601 Número de publicación: US 2003/0213946 A1 Fecha de presentación: 30 Ene 2003 Patente emitida: US6932327 ( Fecha de emisión 23 Ago 2005)