Liquid flow management means
AssigneeGlaxo Group Limited
InventorsChristopher David Bevan, Ian Martin Mutton
Life of this patent
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Abstract
The present invention relates to a method and apparatus for managing liquid flow through small bore tubing (1,2,3) or channels (13) by freezing the liquid or thawing the frozen liquid in a small segment of the tube or channel.
Claims7
A method for managing liquid flow through tubing or channels of internal diameter between 2 .mu.m and 1000 .mu.m, without the use of mechanical values, by freezing the liquid and subsequently thawing the frozen liquid in a small segment of the tube or channel wherein the liquid is frozen by means of a jet of cold gas provided from a liquefied source of the gas under pressure which is directed onto the required segment of the tube or channel.
Dependencies are inferred from the claim text.