Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate
2011-06-07
2011-06-07
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Heat exchanger or boiler making
C029S890045, C029S890046, C029S890049
Reexamination Certificate
active
07954237
ABSTRACT:
A method for manufacturing a heat pipe and a capillary structure thereon is provided, and the steps of the method are as follows. A hollow pipe which has an open end and a closed end is provided. A mold is placed into the hollow pipe through the open end. The mold includes a central rod and a shaping component mating with the central rod, and the shaping component has an outward shaping surface. A powder is filled into the space between the hollow pipe and the mold through the open end and then sintered to form a capillary structure on the inner wall of the hollow pipe, in which the capillary structure has a profile corresponding to the shaping surface of the shaping component. Thereafter, the central rod and the shaping component are sequentially taken out of the hollow pipe.
REFERENCES:
patent: 4027723 (1977-06-01), Maurino et al.
patent: 4046101 (1977-09-01), Winkler
patent: 4196504 (1980-04-01), Eastman
patent: 4274479 (1981-06-01), Eastman
patent: 2005/0235494 (2005-10-01), Chuang et al.
patent: 2006/0143916 (2006-07-01), Tsai et al.
Besler Christopher
Bryant David P
J.C. Patents
Wistron Corporation
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