Patent ID: 7104204

Claim:
A seeding machine comprising: a frame having a center frame section having opposite ends and left and right wing frame sections forwardly offset from the center frame section, the frame having a planting configuration wherein the left and right wing frame sections extend transversely and parallel from the center frame section and a transport configuration wherein the left and right wing frame sections extend perpendicular to the center frame section; the center frame section and the left and right wing frame sections each have a hollow toolbar forming a pneumatic manifold, wherein each toolbar comprises a main toolbar and a vertically displaced parallel secondary bar, the secondary bar forming with the main toolbar a truss wherein pneumatic manifolds are formed in the secondary bars; individual planting units are mounted to the toolbars, each planting unit comprises a pneumatic seed meter and a furrow opener; wherein the pneumatic manifold of the center frame section is pneumatically coupled to each of the left and right wing frame sections by a resilient bell that forms a closed pneumatic path between the center frame section and the left and right wing frame sections at locations offset inwardly from ends of the center frame when the frame is in the planting configuration, and wherein the pneumatic manifolds are pneumatically coupled to the pneumatic seed meters.