Title: William Perry (American football)
Content:  William Anthony Perry (born December 16, 1962) is a former American football defensive lineman who played in the National Football League (NFL) for ten seasons, primarily with the Chicago Bears. Nicknamed "The Refrigerator" because of his imposing size, he played college football at Clemson University and was selected by the Bears in the first round of the 1985 NFL Draft. Perry gained popularity during his rookie season as a member of the Bears team that won the franchise's only Super Bowl in Super Bowl XX. During the season, Perry occasionally played fullback in goal line situations and set the then-record for the heaviest player to score a touchdown at 335 lb (152 kg). He remains the heaviest player to score a touchdown in the Super Bowl and has the largest Super Bowl ring at size 25.
Title: William Perry (American football)
Content:  In 1985, he was selected in the first round of the 1985 NFL Draft by the Chicago Bears; he had been hand-picked by coach Mike Ditka. However, defensive coordinator Buddy Ryan, who had a highly acrimonious relationship with Ditka, called Perry a "wasted draft-pick". Perry soon became a pawn in the political power struggle between Ditka and Ryan. Perry's "Refrigerator" nickname followed him into the NFL and he quickly became a favorite of the Chicago Bears fans. Teammates called him "Biscuit," as in "one biscuit shy of 350 pounds". While Ryan refused to play Perry, Ditka decided to use Perry as a fullback when the team was near the opponents' goal line or in fourth and short situations, either as a ball carrier or a lead blocker for star running back 
Title: William Perry (American football)
Content:  Perry's athletic performances earned him a full-ride scholarship to attend Clemson University in Clemson, South Carolina, where he played for coach Danny Ford's Clemson Tigers football team from 1981 to 1984. He was a member of a national championship team in 1981, and was recognized as a consensus first-team All-American as a junior in 1983. As a freshman in 1981, he earned his "Refrigerator" nickname when a fellow player could barely squeeze into an elevator with Perry and their laundry which they were taking to be washed. The player, Ray Brown, said "Man, you're about as big as a refrigerator."
Title: Senorise Perry
Content:  On May 19, 2014, Perry was signed by the Chicago Bears after going undrafted in the 2014 NFL Draft. In the 2014 season, Perry appeared on special teams in all 16 games, as well as having a team-high 17 special teams tackles and 2 forced fumbles on special teams. On September 1, 2015, Perry was placed on injured reserve with a foot injury. On August 28, 2016, Perry was waived by the Bears. He was later signed to the Bears' practice squad. On September 13, he was released from their practice squad.
Title: William Perry (American football)
Content:  In 1987, Hasbro included an action figure of Perry in their G.I. Joe toy line. The Fridge – William "Refridgerator" Perry – was first available as a mail-order offer from Hasbro Direct in early 1987. He was available through 1988, and then again in 1989. The figure had the number 72 emblazoned on his chest (the number Perry wore on his Chicago Bears jersey).
Title: Bears–Packers rivalry
Content:  Night Football. In goal line situations, Bears head coach Mike Ditka used Perry, who weighed roughly 300 lbs. in the fullback position. Twice, Perry led the way for Bears legend Walter Payton on two- and one-yard touchdown runs. In the second quarter, "the Fridge" was given the ball and plunged into the end zone for one of the heaviest touchdowns in NFL history. The Bears won 23–7, and "The Fridge" was born. ; Bears 16, Packers 10 (November 10, 1985) – Before the game, the Packers placed horse manure in the Bears locker room. Two weeks after the Monday Night Game, tempers 
Title: Gerry Perry
Content:  Gerry Perry (born July 17, 1930) was a defensive lineman and placekicker in the National Football League. Perry played college football at University of California at Berkeley and was selected in the 29th round of the 1952 NFL Draft by the Los Angeles Rams.
Title: Jereme Perry
Content:  Perry was signed as an undrafted rookie free agent in spring 2006. After being signed to the practice squad in September, he found himself starting in October after the injuries to Browns starters Leigh Bodden and Daven Holly. His accomplishments are not numerous for the Browns. However, in Week 10, he recovered a Michael Vick fumble to seal the Browns' third victory of the season—redemption after being burned on a 55-yard pass from Vick to receiver Roddy White two plays previous. Despite his strong performance as a rookie, Perry was cut by the Browns on September 8, 2007 - the day before the regular season opener. Because he appeared in more than nine games during his first season, he had no practice squad eligibility remaining.
Title: Super Bowl XX
Content:  told the press that the team "wasted" their first round draft pick on him, Perry lost some weight and ended up being an effective defensive tackle, finishing the season with 5 sacks. He got even more attention when Ditka started putting him in the game at the fullback position during offensive plays near the opponent's goal line. During the regular season, Perry rushed for 2 touchdowns, caught a pass for another touchdown, and was frequently a lead blocker for Payton during goal line plays. The Bears "46 defense" also had the following impact players: On the defensive line, Pro Bowler and 
Title: Fred Perry (Canadian football)
Content:  The bulk of Perry's playing career has been in the CFL, though he spent the entire 2002 season on the injured reserve of the NFL's Atlanta Falcons after being injured in an exhibition game. In 2006, Perry was second in the CFL in quarterback sacks and was named to the CFL All-Star team. He repeated as an All-Star in 2007 and won the 95th Grey Cup with the Saskatchewan Roughriders. On February 8, 2008, he was traded, along with Saskatchewan's 2008 2nd round CFL Draft choice, to the Edmonton Eskimos. In exchange, the Riders received Steven Jyles and Edmonton's 2008 2nd round draft choice. It was reported that, after re-signing with the Roughriders shortly after the Grey Cup, Perry had repeatedly asked for a signing bonus or cash advance that general manager Eric Tillman could not provide for salary cap reasons. In 2008, Perry saw action in only seven games with the Eskimos, managing just one sack. On May 15, 2009, Perry was traded from the Edmonton Eskimos to the Winnipeg Blue Bombers for DB Kelly Malveaux. On March 19, 2010, Perry was released by the Winnipeg Blue Bombers.

Question: when did refrigerator perry play for the bears?
Answer: 1985–1993.