Patent ID: 8869718

Claim:
An agricultural implement system, comprising: a fluid conduit that provides product to a ground engaging tool while the agricultural implement system is in operation, wherein the ground engaging tool is configured to deposit the product into soil; an air source fluidly coupled to the fluid conduit, wherein the air source provides an air flow through the fluid conduit in a downstream direction toward the ground engaging tool while the agricultural implement system is in operation; a product delivery system fluidly coupled to the fluid conduit downstream from the air source, wherein the product delivery system transfers the product into the air flow while the agricultural implement system is in operation; and a product flow control system that determines a mass flow rate of the product and adjusts product transfer into the air flow based on the determined mass flow rate of the product while the agricultural implement system is in operation, wherein the mass flow rate of the product is determined based on a pressure drop between a first portion of the fluid conduit and a second portion of the fluid conduit, a flow rate of the air flow upstream of the product delivery system, and a velocity of the air flow upstream of the product delivery system; wherein the first portion is downstream from the product delivery system, and the second portion is downstream from the first portion.