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AssigneeArthur Guinness Son and Company (Great Britian) Limited
InventorsJohn B. Hedderick, Brian R. Rutty, David G. Page, John J. Walshe
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A beverage dispensing system has a valve in a tap controlling dispensing of the beverage through a first passage from a second rigid or flexible container. Air, nitrogen (or other inert gas) or carbon dioxide gas from a passage is introduced into the beverage in the first passage during dispensing for development of a head of froth. The introduced gas flows under pressure (which is preferably adjustable) from the second passage and by way of a capilliary tube restrictor and a non return valve communicating with the tube into the beverage in the first passage. The non return valve has a resilient diaphragm which normally closes that valve and is displaceable under gas pressure to admit the gas to the beverage. A labyrinthine mixer is located in the first passage downstream of the position where the gas is introduced.
A beverage dispensing system comprising valve means controlling dispensing of the beverage through a supply passage which is intended to be connected to a bulk source of the beverage, and gasifying means for introducing at least one of nitrogen, carbon dioxide, and air gases into said beverage in the supply passage remote from the bulk source and during dispensing of the beverage, said gasifying means having an inlet for connection to a source of the gas under pressure;
Dependencies are inferred from the claim text.