A method and apparatus for tufting weatherstripping involves forming a barrier fin on a substrate, advancing the substrate with the barrier fin extending downwardly from the underside thereof past a tufter head, and passing the downwardly extending barrier fin through a channel in the needleplate of...http://www.google.ca/patents/US4637948?utm_source=gb-gplus-sharePatent US4637948 - Tufted weatherstripping with barrier fin
