Patent ID: 7594698

Claim:
A portable seat adapted for use on a wheelchair for a single user having limited mobility, said portable seat comprising: a cushioned seat for said single user; an upper frame having a horizontal orientation during elevating, said cushioned seat mounted to said upper frame; means for elevating said upper frame while maintaining said horizontal orientation, wherein said means for elevating are a plurality of inflatable bags; means for tilting said upper frame in an inclined plane, said means for tilting mounted to said means for elevating and to said upper frame, wherein said means for tilting is an inflatable bag having a predetermined wedge shape to tilt said upper frame; a lower frame, said means for elevating mounted to said lower frame, said lower frame having removable means for mounting said lower frame to a pair of seat rail tubes of said wheelchair; and a power source, said power source driving said means for elevating and said means for tilting, and being adapted to be mounted to said wheelchair.