Patent ID: 6161733
Filing Date: 2000-12-19
Classification: A23G,G01F

Abstract:
An apparatus for dispensing controlled quantities of flowable product material, comprising:container means for holding flowable products, said container means having means for porting flowable products into and out of said container means;dispenser means for receiving said flowable products from said container means and for dispensing controlled quantities of said flowable product materials therefrom, said dispenser means comprising:dispenser body means for defining a piston housing portion therein, and for porting said controlled quantities of flowable products into and out of said piston housing portion;piston means for pumping controlled quantities of flowable products out of said piston housing portion; andshutter valve means for variable closure of said piston housing portion whereby the flow of said flowable product from said container means is controlled;shutter drive means for positioning said shutter valve means so as to meter the flow of controlled quantities of flowable product material from said dispenser means;piston drive means for stroking said piston means so as to cyclically draw a controlled amount of flowable product material from said container means, and for cyclically dispensing of said controlled quantities of flowable product material from said dispenser means; andcomputer control means for independent positioning of said piston and shutter valve means in accordance with a selected sequencing program.