Method for manufacturing heat sink for use in heat sink fan

Details Method for manufacturing heat sink for use in heat sink fan Method for manufacturing heat sink for use in heat sink fan

2007-10-09

2007-10-09

Chang, Rick K (Department: 3726)

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

C029S890030, C029S890035, C029S890038, C029S890045, C029S832000, C029S739000, C029S740000, C165S080300, C165S121000, C361S697000

Reexamination Certificate

active

11277619

ABSTRACT:
A method for manufacturing a heat sink for use in a heat sink fan is provided. A heat-sink base portion defining a central axis and a circumferential surface is formed. A plurality of heat-radiating fins is formed on the circumferential surface of the base portion. Each of the heat radiating fins extends away from the central axis and defines at least one radially distal edge. After the base portion and the heat-radiating fins are formed, a distal-edge protrusion or a recess is formed on or in at least one of the heat radiating fins by a machining process, so as to form partially along the envelope of the heat sink at least one discrete engagement feature.

REFERENCES:
patent: 4369838 (1983-01-01), Asanuma et al.
patent: 6557626 (2003-05-01), O'Sullivan et al.
patent: 6793011 (2004-09-01), Armstrong et al.
patent: 2582174 (2003-10-01), None
Marked-up copy of 6557626.

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