Gas and liquid contact apparatus – Contact devices – Liquid tank
Patent
1977-01-29
1980-09-16
Chiesa, Richard L.
Gas and liquid contact apparatus
Contact devices
Liquid tank
99275, 261 65, 261DIG7, 426477, B01F 304
Patent
active
042229723
ABSTRACT:
This invention provides a novel method and means for carbonating liquids in the container from which the liquids are served to the consumer with a minimum of carbonating gas and for maintaining and enhancing carbonation of the remaining liquid without expensive regulatory apparatus after withdrawal of a portion of the carbonated liquid. Inherent in the means and method to induce and regulate carbonation, the invention provides both means and method for regulating or substantially limiting the maximum volume of liquid introduced into the carbonation chamber as well as a means and method to purge air from the carbonation chamber. According to the invention, a fixed volume vessel and a dynamic capacity carbonating chamber, a pump and relief valves enable consistent carbonation and regulation of the carbonating pressure prior to and following dispensing of carbonated liquids while utilizing a finite, minimum quantity of carbonating gas. The dynamic capacity carbonating chamber is defined within a fixed volume vessel by a resilient, flexible relatively non-permeable air bag separating a liquid CO.sub.2 gas phase from pressurized air. A manually operated pump and preset relief valves enable the maintenance of predetermined fixed pressures within the air chamber and carbonating chamber of the vessel without introducing atmospheric air into the carbonating chamber.
REFERENCES:
patent: 935698 (1909-10-01), Silberschmidt
patent: 1907301 (1933-05-01), Martin
patent: 1912439 (1933-06-01), Feller
patent: 2220146 (1940-11-01), Curry
patent: 2732117 (1956-01-01), Hillis
patent: 3233779 (1966-02-01), Cornelius
patent: 3960164 (1976-06-01), Kelley
patent: 4093681 (1978-06-01), Castillo et al.
Chiesa Richard L.
Hunt, Jr. Clifton T.
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