| 摘要 |
Bottles, cans or like containers which tend to undergo deformation in response to excessive reduction of internal pressure below atmospheric pressure are filled with beer or another liquid which is adversely affected by contact with air by evacuating some air from their interior so that the pressure in the interior of a container does not decrease below a pressure at which the container is subject to deformation, circulating through the interior of the container an inert gas to expel the remainder of air, raising the pressure of inert gas in the interior of the container, and thereupon admitting into the container a stream of liquid at a pressure corresponding to the pressure of inert gas in the interior of the container whereby the liquid expels the gas and fills the container to a desired level. The pressure in the interior of the thus filled container is reduced prior to sealing.
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