Liquid metal gasket in x-ray tubes
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United States of America Patent
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May 10, 2005
Grant Date -
Nov 11, 2004
app pub date -
May 7, 2003
filing date -
May 7, 2003
priority date (Note) -
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Abstract
Liquid metal gaskets for use in vacuum tubes are provided. Such liquid metal gaskets are ideal for use in x-ray tubes in x-ray imaging systems. These liquid metal gaskets comprise an internal plug incorporating a liquid metal filling, a first seal connected to a first end of the internal plug so as to isolate a bearing assembly from a vacuum vessel portion of the vacuum tube, and a second seal connected to a second end of the internal plug so as to prevent particles and vapors in a cavity of the bearing assembly from migrating into a vacuum area of the x-ray tube. The liquid metal gaskets incorporate any suitable liquid metal, such as mercury, gallium, or a gallium alloy. The liquid metal gaskets allow any suitable type of bearing assembly lubricant to be used, such as oils, powders, liquids, solids, wetting metals, and the like.
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