A gap sealer for covering the gaps between horizontally extending and vertically spaced apart sidewall panels on auto rack railroad cars and between sidewall panels and the floor, roof or vertical posts. The gap sealer is a single piece of extruded plastic having a head attachable to a flange of a sidewall...http://www.google.com/patents/US5415108?utm_source=gb-gplus-sharePatent US5415108 - Auto rack panel gap sealer
