Method for sealing a heat pipe

Details Method for sealing a heat pipe Method for sealing a heat pipe

2006-05-16

2008-12-23

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

C029S890030, C029S890053, C029S890054, C029S505000, C165S104180, C165S104190, C165S104210, C165S104260

Reexamination Certificate

active

07467466

ABSTRACT:
A method for sealing a heat pipe, includes the steps of: providing a metallic pipe with an end sealed and an opposite open portion; pressing the open portion of the pipe to form a two layer portion by using two pairs of pressing molds; welding an end part of the two layer portion to form a sealing structure, during which at least one pair of pressing molds continues pressing the two layer portion; and moving the at least one pair of pressing molds away from the sealing structure.

REFERENCES:
patent: 6230407 (2001-05-01), Akutsu
patent: 6957691 (2005-10-01), Hsieh
patent: 7073257 (2006-07-01), Hsu
patent: 7192064 (2007-03-01), Hsu
patent: 2004/0194311 (2004-10-01), Hsu
patent: 2005/0051259 (2005-03-01), Lou
patent: 2005/0051301 (2005-03-01), Hsu
patent: 2005/0167984 (2005-08-01), Hsu
patent: 2006/0117557 (2006-06-01), Li
patent: 2006/0278383 (2006-12-01), Hsu
patent: 2006/0283578 (2006-12-01), Hsu
patent: 1280290 (2001-01-01), None
patent: 61-134592 (1986-06-01), None

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