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US 6,199,386 B1Granted
Spirit Chiller
AssigneeThe BOC Group, Inc.
InventorsMichael Ernest Garrett, Evelyn Arthur Shervington
Life of this patent
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AssigneeThe BOC Group, Inc.
InventorsMichael Ernest Garrett, Evelyn Arthur Shervington
Estimating the term…
A spirit chilling apparatus comprising a drink chilling tube (4) concentric within an insulated container (6) filled with a constant boiling cryogen (8), such as acetone and solid carbon dioxide or similar azeotropic mixture. The innertube (4) is held in relatively poor thermal contact with the vessel (6) containing the liquid so that over a period of time it will adopt the temperature of the liquid (8) but when a measure of spirit is poured through it the specific heat of the tube (4) will be sufficient to result in a net temperature of −5° C. for both the spirit and the tube (4), the heat flow from the surrounding vessel (6) being insufficient to materially affect this. If the tube (4) is left in place it will again cool to the previous temperature so that a further measure of spirit can be cooled.
Apparatus for supplying spirits comprising conduit means for bringing said spirits at or about ambient temperature into indirect thermal contact with a liquid cryogen so as to chill said spirits to a temperature of about −5° C.
Dependencies are inferred from the claim text.