Patent ID: 7707945
Filing Date: 2010-05-04
Classification: B61C

Abstract:
1. A safety system for a walkway of a vehicle comprising: an operator cabin; a walkway extending from said operator cabin along a first side of said vehicle; at least one resistive grid exhaust in a sidewall of said first side of said vehicle for directing hot air along a path from a resistive grid within said sidewall to external said vehicle during a self-load mode of said vehicle; and at least one barrier bar positioned adjacent said at least one resistive grid exhaust, said at least one barrier bar for extending to an extended position over said walkway during said self-load mode to prevent an operator from walking into said path of said hot air from said resistive grid exhaust, and for retracting from said extended position over said walkway for switching out of said self-load mode into a normal mode of said vehicle to shut off the supply of said hot air from said resistive grid through said at least one resistive grid exhaust to permit said operator to safely walk in front of said at least one resistive grid exhaust.