Patent attributes
A family of canisters that includes at least two canisters that are adapted to filter a flow of fluid from a fuel tank. Each canister includes a first portion that defines a first perimeter and a first area each common to all canisters of the family. A second portion defines a second perimeter and a second area each common to all canisters of the family. A cover portion defines a third perimeter and a third area each common to all canisters of the family. A body portion cooperates with the first portion, the second portion, and the cover portion to define an interior space having a volume, a characteristic dimension, and a characteristic length. The volume of each canister of the family is different and the ratio of the characteristic length to characteristic dimension of each of the canisters is between about 1.5 and 5.
