Illumination – Housing – With cooling means
Reexamination Certificate
2009-02-12
2010-10-12
Payne, Sharon E (Department: 2875)
Illumination
Housing
With cooling means
C362S294000, C362S264000, C362S345000
Reexamination Certificate
active
07810965
ABSTRACT:
A heat removal assembly for a light emitting diode lighting apparatus is described. One embodiment of the heat removal assembly includes a plurality of fins configured to receive heat from a light emitting diode. In the plurality of fins, two adjacent fins are separated by a gap width, and each fin has a fin length. The heat removal assembly also includes a duct configured to draw a stack-effect airflow through the plurality of fins to remove heat from the plurality of fins. The gap width separating two adjacent fins and the fin length of each of the fins are configured to prevent boundary layer choking the plurality of fins. In one embodiment, the heat removal assembly also includes a conductor and a thermal storage system configured to receive heat from the light emitting diode. A lighting apparatus including the heat removal assembly, a light emitting diode, and a connector plug is also described. In one embodiment, the lighting apparatus can be installed in a recessed can in which incoming and outgoing flows of a stack-effect airflow are separated. Methods for removing heat from a light emitting diode are also described.
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Lumenetix, Inc.
Payne Sharon E
Perkins Coie LLP
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