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
The 1971 Miami Dolphins are the only team to ever play in a Super Bowl and not reach the end zone. Miami's 24-3 loss to Dallas in Super Bowl VI still stands as the fewest points scored by a team in the history of the game. The 1974 Minnesota Vikings are the only other team to score fewer than seven points on Super Sunday.