Patent attributes
An aircraft passenger seat that includes a seat frame including a seat back and at least one armrest, a seat bottom that includes a seat pan and a foam seat cushion positioned on the seat bottom above the seat pan, a pneumatic cushion positioned on the seat bottom between the seat pan and the foam seat cushion and adapted to maintain a predetermined level of inflation determined by air pressure within the pneumatic cushion, and a pneumatic inflation device communicating with the pneumatic cushion for permitting the air pressure within the pneumatic cushion to be varied as desired to provide additional comfort to the seat occupant. The pneumatic cushion may include at least first and second laterally-separated cushion chambers providing lateral articulation of the first and second cushion chambers relative to each other.
