Flow control for agricultural implement pneumatic system

This invention describes a system for agricultural air seeders that ensures seeds are distributed evenly. It uses special control valves within the air hose system that automatically adjust their opening size. A piston inside each valve moves in response to the total air pressure just before the valve, ensuring a consistent air flow velocity to each planting unit, especially where the air flow changes direction, often at a perpendicular angle.

Why it matters: The self-regulating pneumatic mechanism, designed to operate without auxiliary power, might benefit from advancements in precision manufacturing or material science since 2018. These improvements could potentially reduce production costs or enhance the long-term reliability of the precise valve and piston components.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateCustom pneumatic valves, pistons, pressure sensor.

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