Intermediate pressure dispensing method for a carbonated...

B - Operations – Transporting – 67 – D

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Details

B67D 1/12 (2006.01) B65D 83/00 (2006.01) B65D 83/14 (2006.01) B67B 7/00 (2006.01) B67D 1/00 (2006.01) B67D 1/04 (2006.01) B67D 1/08 (2006.01) B67D 1/14 (2006.01)

Patent

CA 2438608

A carbonated beverage (38) is conveyed from a source (12) to a closed reservoir (28) at a first pressure level. The pressure in the reservoir (28) is controlled by selectively venting gas and adding pressurized gas to the reservoir (28) to maintain the carbonated beverage (38) at a second pressure level that is less than the first pressure level and substantially greater than atmospheric pressure. The carbonated beverage (38) is dispensed from the reservoir (28) into a serving container by reducing the pressure in the reservoir (28) to substantially atmospheric pressure and then opening an outlet valve (62). During prolonged periods when dispensing is not occurring the pressure in the reservoir (28) may be increased to prevent degassing of the carbonated beverage (38). In that case, the reservoir (28) pressure is reduced to the second pressure level before another dispensing operation.

Une boisson gazeuse (38) est transportée d'une source (12) à un réservoir fermé (28) à un premier niveau de pression. La pression dans le réservoir (28) est commandée par la ventilation sélective de gaz et l'addition de gaz comprimé dans ce réservoir (28) de façon à maintenir la boisson gazeuse (38) à un second niveau de pression inférieur au premier et sensiblement au dessus de la pression atmosphérique. Cette boisson gazeuse (38) est distribuée du réservoir (28) à un récipient de service par une réduction de pression dans ce réservoir (28) à une pression sensiblement atmosphérique, puis par l'ouverture d'une vanne de sortie (62). Pendant des périodes prolongées, en l'absence de distribution, la pression du réservoir (28) peut être augmentée de façon à empêcher une dégazéification de cette boisson gazeuse (38). Dans ce cas, la pression du réservoir (28) est réduite à un second niveau de pression préalablement à une autre distribution.

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