Patent ID: 7992650

Claim:
A pneumatic suspension system for an implement including a ground-working tool movable through a range of motion between raised and lowered positions, which system includes: an air spring with first and second ends; a first mount connected to said air spring first end and to said implement; a second mount connected to said air spring second end and to said implement; said first mount is an upper mount being pivotally connected to said implement at a first pivot; said second mount is a lower mount being pivotally connected to said implement at a second pivot; said lower mount having an elongated aperture receiving said air spring second end, an adjacent hole, and side walls depending therefrom; said upper mount having a hole, an adjacent elongated aperture receiving said air spring first end, and legs depending thereform; and a parallel mechanism connected to said first and second air spring mounts and maintaining said air spring first and second ends generally parallel throughout said ground working tool range of motion between its raised and lowered positions.