The term bellows is used by extension for a flexible bag whose volume can be changed by compression or expansion, but not used to deliver air. For example, the light-tight (but not airtight) bag allowing the distance between the lens and film of a folding photographic camera to be varied is called a bellows.
What NFL has lost the Super Bowl the most? The Buffalo Bills, the Denver Broncos, the Minnesota Vikings, and the New England Patriots have all lost four Super Bowls. Edit
Follow BI. You have successfully emailed the post. 13 NFL teams have still never won a Super Bowl. With two weeks to go in the regular season, the New England Patriots (30%) and the Dallas Cowboys (18%) are the favorites to win the Super Bowl, according to FiveThirtyEight. It would be the fifth Super Bowl win for the Patriots and the record-tying sixth for the Cowboys, suggesting once again that that there is not as much parity in the NFL as they would like you to believe.