Patent ID: 8596724

Claim:
A cushion-less passenger seat comprising: (a) spaced left and right spreaders, each having a front and rear leg with top and bottom ends; (b) left and right armrests having distal and proximal ends, said left and right armrest proximal ends pivotally attached to said left and right spreaders respectively, wherein the spreaders are below the proximal ends of said armrests; (c) a seating surface formed from a flexible bottom diaphragm having a forward edge and attached to and extending between said left and right spreaders, said spreaders providing an underlying framework for said seating surface; and (d) a lumbar support independently pivotable with respect to said seating surface, said lumbar support having lower and upper sections and front and back sides formed from a flexible diaphragm, said lumbar support lower section being attached to and between said left and right spreaders and said lumbar support upper section extending upwardly above said rear legs and said seating surface, whereby said lumbar support upper section is free of direct attachment to said underlying framework.