A column still also called a continuous still, patent still, or coffey still is a variety of still that consists of two columns. The first, called the rectifier, has steam rising and wash descending through several levels. The second column called the analyzer carries the alcohol from the wash where it circulates until it can condense at the required strength.
Coffey's skating allowed him to get into a strong position for an offensive play or recover quickly for a defensive one, added another Hall of Fame coach and manager, Scotty Bowman, who had Coffey in Pittsburgh and again in Detroit in the late '90s.
Coffey holds the NHL career playoff records for goals (59) and points (196) by a defenseman, as well as the record for single-season goals by a defenseman (48).
Coffey had been the last cut by Bowman in the 1981 Canada Cup tournament, a competition in which the Russians had destroyed Canada 8-1 in the championship game.