Patent Number: 6,296,425

Title: Method for controlling the flow rate of an air seeder

Abstract: An apparatus for dispensing particles includes a storage tank for containing particles to be dispensed a metering mechanism for transferring particles from the storage tank and an air distribution system for receiving particles from the metering mechanism The air distribution system includes a bank of tubes for transporting particles in a flow of air having a flow rate, and a damper mechanism at the bank of tubes for selective control of the flow rate within the bank of tubes. The apparatus for dispensing particles also includes an air flow source for providing a flow of air to the bank of tubes, a sensor located at each tube for providing a sensor output signal indicative of a value of a flow characteristic, and a controller operably connected to the sensors and to the damper mechanism. The controller automatically effects an adjustment of the flow rate in the bank of tubes by receiving the sensor output signals, normalizing the values corresponding to the sensor output signals, and automatically effecting an adjustment of the damper mechanism as a function of the normalized values and a target value.

Inventors: Memory; Russell J. (Saskatoon, CA), Benneweis; Robert K. (Saskatoon, CA), Klassen; Neil D. (Saskatoon, CA), Wilson; Robert J. (Saskatoon, CA), Wilson; James N. (Saskatoon, CA)

Assignee: Flexi-Coil Ltd.

International Classification: A01C 7/08 (20060101); G01F 1/704 (20060101); G01F 1/708 (20060101); B65G 053/00 ()

Expiration Date: 10/02/2018