Self-leveling seat

Claim 1

A self-leveling seat system comprising, in combination: a seat with a vertically oriented back rest portion and a horizontally oriented seat portion; a tubular mounting frame including a lower horizontal portion having a hollow cylindrical configuration, a pair of mounting brackets encompassing an outer surface of ends of the lower horizontal portion and having a planar bottom for being fixed to a floor board of a vehicle, and a pair of upper vertical portions each with a hollow cylindrical configuration and having a bottom end connected to one end of the horizontal portion of the frame and extending upwardly therefrom to terminate at open top ends, wherein the vertical portions are each in fluidic communication with one end of the horizontal portion; a pair of cylinders each slidably situated within the top end of one of the vertical portions of the frame with a bottom end having a pair of concentric bushings mounted to a periphery thereof and a top end having a vertical member of an angle bracket pivotally coupled thereto, wherein horizontal members of the angle brackets extend toward each other and are coupled to a bottom surface of the seat portion of the seat; and a pneumatic assembly including a pair of valve members each having a disk-shaped configuration and being situated within the horizontal portion of the tubular mounting frame, wherein each of the valve members has a cylindrical tab coupled in concentric relationship therewith, the pneumatic assembly further including a spring situated between the valve members and coupled to the tabs thereof, whereby the valve members force the cylinders and the seat upward in a level orientation and upon the vehicle being angled, the seat remains level.