Mold for manufacturing heat dissipation apparatus

Details Mold for manufacturing heat dissipation apparatus Mold for manufacturing heat dissipation apparatus

2007-06-14

2010-06-22

Ward, Jessica L. (Department: 1793)

Metal founding

Means to shape metallic material

Including means to assemble mold parts

C164S347000, C164S132000

Reexamination Certificate

active

07740050

ABSTRACT:
A mold (200) for manufacturing a heat dissipation apparatus (10) includes a movable mold (20) and a fixed mold (30) covering the movable mold. The heat dissipation apparatus includes a plurality of fins (12). One of the movable mold and the fixed mold includes an insert group (50). The insert group includes a plurality of separated inserts (51) stacked together. A plurality of compartments (513) are formed between adjacent inserts of the insert group for forming the fins of the heat dissipation apparatus when molten metal is injected into the mold.

REFERENCES:
patent: 5562146 (1996-10-01), Harmon et al.
patent: 6305924 (2001-10-01), Krinke et al.
patent: 6516867 (2003-02-01), Ootori et al.
patent: 6751859 (2004-06-01), Farnworth et al.
patent: 1321335 (2001-11-01), None
patent: 2000-263210 (2000-09-01), None
patent: 2004243392 (2004-09-01), None
Chun-Rong Lai, Bing Wang, “Structure Analysis of Precision Casting mold for Heat Sink and Method for Making Sand Shell Core” in “Special Casting & Nonferrous Alloys” (pp. 6 and 28-29) (Sixth Issue in 1999), China.

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