The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2013
Filed:
Jun. 28, 2012
Wei-cheng Chou, New Taipei, TW;
Wei-Cheng Chou, New Taipei, TW;
Wistron Corp., New Taipei, TW;
Abstract
The disclosure provides a method for fabricating a heat pipe, and an instrument of the method. The method for fabricating a heat pipe includes providing a hollow tube, wherein the hollow tube has an open end and a closed end; disposing a mandril into the hollow tube from the open end, wherein the inside wall of the hollow tube is separated from the mandril by a space, and wherein the mandril comprises a first portion and a second portion and the first portion has a thermal expansion coefficient larger than that of the second portion; filling up the space between the mandril and the hollow tube with a powder; performing a sintering process to the hollow tube, forming a first agglomeration region and a second agglomeration region; removing the mandril; injecting a working fluid into the hollow tube; and sealing the open end of the hollow tube.