Cooler

Details Cooler Cooler

2007-10-16

2007-10-16

Walberg, Teresa J. (Department: 3744)

Heat exchange

Heat transmitter

C165S080300, C165S146000

Reexamination Certificate

active

11302397

ABSTRACT:
A cooler includes a heat conducting member and a heat scattering member. The heat conducting portion is closely attached with a heat source. The heat scattering member has plural hollow cones respectively formed of sintered metallic particles with their size enlarged gradually from the bottom to the top. The metallic particles closer to the surface of the heat conducting member are smaller, having a greater contact area to transmit the heat more effectively. And, plus the ventilation of a fan on the heat scattering member, the air in the hole of the hollow cone is expelled out, so the air outside the hollow cone flows into its center through the porosities between the metallic particles, enabling the metallic particles of the hollow cone to increase the contact area with air for a better thermal release.

REFERENCES:
patent: 5285350 (1994-02-01), Villaume
patent: 5727624 (1998-03-01), Ko et al.
patent: 6374490 (2002-04-01), Miyahara
patent: 6549404 (2003-04-01), Kitahara et al.
patent: 6913070 (2005-07-01), Wang et al.
patent: 2005/0039882 (2005-02-01), Griesmayer
patent: 2005/0280996 (2005-12-01), Erturk et al.

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