Patent ID: 6173864
Filing Date: 2001-01-16
Classification: G01F

Abstract:
A system for accurately dispensing controlled amounts of viscous material, the system comprising:a pressurized supply of said viscous material;a dispenser connected in fluid communication with said pressurized supply;a feedback control operatively connected with said pressurized supply, said feedback control including:a viscous material measuring device operative to measure a dispensed amount of said viscous material,a memory device operative to store a value representing a control amount of said viscous material,a comparing device operative to compare the dispensed amount with the control amount and produce a correcting output signal, anda transducer device operatively coupled with the comparing device to receive the correcting output signal and change the pressure of said pressurized supply such that said dispenser dispenses an amount of viscous material which is closer to said control amount than said dispensed amount.