Patent ID: 8042712

Claim:
A system for dispensing a controlled amount of fluid product from a dispensing container comprising: a pneumatically driven dispensing actuator including a dispensing cylinder and a movable dispensing piston, said dispensing piston being movable responsively under pneumatic pressure within said cylinder, said cylinder including a volume of hydraulic fluid under said pneumatic pressure acting against said dispensing piston to selectively prevent movement of said dispensing piston; and braking device including a braking cylinder and a braking piston, said braking device being in hydraulic communication with said volume of said hydraulic fluid in said dispensing cylinder, said braking piston being selectively movable within said braking cylinder by a controllable stop to allow selective reduction of said volume of said hydraulic fluid in said dispensing cylinder and to allow controlled dispensing movement of said dispensing piston in response to said reduced volume; said controlled movement of said dispensing piston causing controlled displacement of said fluid product from said dispensing container.