Patent ID: 7025010

Claim:
A product-on-demand delivery system for agricultural product, the system comprising: a frame; a main hopper mounted on the frame, said main hopper having a nozzle assembly into which product in said main hopper is directed, the nozzle assembly having an upstream sidewall, a downstream sidewall and a bottom, the nozzle assembly comprising an air inlet and a product outlet; a primary application unit and a secondary application unit mounted to the frame, each application unit provided with an auxiliary hopper and a product meter for dispensing the product to a field, each product meter in communication with the auxiliary hopper; a splitter having a splitter inlet, a first splitter outlet and a second splitter outlet, said second splitter outlet oriented for a vertical upward flow of air and product; a primary product hose flow-coupled to said product outlet and to said splitter inlet; a secondary product hose flow-coupled to said primary product hose and to said secondary application unit; said first splitter outlet flow-coupled to said primary application unit; an air pump pneumatically flow-coupled to the upstream sidewall of the nozzle assembly by an air supply hose, the air pump generating pressurized air directed into the air supply hose; the air supply hose being flow-coupled to said air inlet of the nozzle assembly opposite the product outlet, so that product located in the nozzle assembly is taken up by the air stream as the air stream passes from the air inlet through the nozzle assembly to the product outlet, and the air and product passes through the primary product hose, through the splitter to the primary application unit and through the splitter and through the secondary product hose to the secondary application unit, air and product supplying both said primary and secondary application units passing through said primary product hose.