Method for making a heat dissipating tube
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United States of America Patent
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-
Feb 25, 2003
Grant Date -
N/A
app pub date -
Oct 12, 2001
filing date -
Oct 12, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for making a heat dissipating tube includes the steps of preparing a copper plate, forming a cylindrical tube with a flat bottom and an open end, inserting a copper bar and copper powder into the cylindrical tube, sintering the copper powder to form porous pyrocrystalline copper, removing the copper bar and thus defining a central hole in the porous pyrocrystalline copper, attaching a cap with an drain hole to the open end to close the open end, filling the cylindrical tube with a heat conducting fluid through the drain hole, and drawing a vacuum inside the cylindrical tube through the drain hole and then sealing the drain hole.
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