It was in the early 1980s when Luck Stone, a third generation American crushed stone, sand and gravel company, purchased its first Philippi-Hagenbuch Heavy Duty Autogate Tailgates. Nearly 30 years later the Richmond, Virginia-based firm claims its ongoing investment in Philippi-Hagenbuch (PHIL) Heavy Duty Autogate Tailgates has saved a fortune in equipment repairs and replacements.