公开(公告)号：USRE46143E1

公开(公告)日：2016-09-13

申请号：US14887829

申请日：2015-10-20

申请人： A.C. DISPENSING EQUIPMENT INC.

发明人： P. Gregory Erman ,  Chris Marshall ,  Avery Wilson ,  David A. Ricker ,  Michael McDougall ,  Kevin Stoneman ,  Ian MacLean

IPC分类号： B67D1/00 ,  A47J31/40 ,  F04B9/02 ,  F04B13/00

CPC分类号： F04B13/00 ,  A47J31/402 ,  F04B9/02

摘要： A concentrated flavor dispensing machine having displacement pumps for delivering between a fraction of a milliliter and a few ounces of fluids having a viscosity value between 1 to 4000 centepoise is described. The dispensing machine includes a cabinet for containing a multitude of displacement pumps, where each displacement pump is realizably connected to a disposable pre-filled fluid cartridge. Each displacement pump includes a stepper motor in engagement with a threaded drive rod that is advanced or retracted by any one of several predetermined distances. The drive rod impels a plunger positioned within the disposable cartridge to dispense a volume of fluid. Flexible capillary tubes connected to the output of each disposable cartridge direct the fluid to a central dispensing area. The disposable cartridge includes an expandable plunger which draws fluid back into the cartridge when the drive rod is withdrawn after a dispense operation for drip prevention.