Abstract: A dosing unit for concentrate in a post-mix beverage dispenser is described which includes an enclosed cylinder space, and a pump piston with a bore running parallel with the axis. A control piston which is in contact with the input side shutoff of the cylinder space is disposed within and movable longitudinally of the bore in the pump piston. The control piston includes an intake opening, and in contact with the pump piston, forms an outlet opening, where the intake and the outlet openings are alternately opened or closed through axial movement of the control piston with respect to the cylinder space and the pump piston. The control piston movement is restricted with respect to the accelerator piston and constrained by axial impact points, so that an axial movement forced upon the control piston causes an impulse in both directions to open or close the intake or the outlet openings, after which by carry-over of the particular impact, the pump piston is moved axially the same distance.

Abstract: A beverage concentrate container includes an integrally connected piston pump as a concentrate dosing unit. The container and piston pump are insertable into rigid support within a beverage dispenser cabinet for mechanical interconnection with a drive mechanism for the pump. The container and pump combination (syrup package) are fabricated from materials which are disposable.

Abstract: A disposable CO.sub.2 gas generator cartridge of cylindrical construction and including inner and outer coaxial reagent chambers which are interconnected when installed in a cylindrical pressure vessel and having a top cover assembly including a pusher type activating mechanism which is operated by a cam surface located on a handwheel. The cover assembly connects to a carbonated drink dispenser by means of a quick disconnect coupling activated by the operation of a manually operated pull down lever assembly including the handwheel. Operation of the handwheel acts to start gas generation and also vent the cartridge to atmosphere when spent.

Abstract: A dosing system has a vessel for holding a fluid and a dosing device for dispensing a measured quantity of fluid from the vessel. The dosing device hermetically seals the vessel and has a valve with a fluid passage, a piston surrounding the valve and a cylinder housing surrounding the piston. The valve is positioned in a first position wherein fluid is gravity fed from the vessel to a chamber formed between a drive face of the piston and the cylinder housing. The valve can be reciprocated from the first position to a second position whereat the valve closes the inlet from the vessel to the chamber. The piston closes the passage within the valve when the valve is in the first position and opens the passage when the valve is moved to the second position to permit discharge of fluid from the chamber. When the valve moves to a third position, the drive face of the piston moves toward a shoulder of the cylinder housing to thereby pump the fluid from the chamber.

Abstract: A mobile extra display cart is described. The cart includes a plurality of vertically adjustable shelves which slide in two vertical tracks located on the back wall of the cart. The plurality of vertically adjustable shelves are designed to pivot upwardly against the back of the cart when the stacked products are removed from the respective shelves. To facilitate the use of the mobile extra display cart as a delivery cart for the stacked products, each respective shelf is molded from plastic and contains an upper and lower lip to keep the stacked products from sliding off the shelves. In addition, there is provided a top cap which is adjustable in the vertical tracks and is hinged at the back of the cart. The top cap is designed to pivot downwardly covering the top layer of the stacked products and in combination with a pair of straps joined together in a Y configuration, the cap is maintained in compression with the stacked products to prevent them from falling out from between the shelves.