Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2008-02-19
2011-11-08
Caputo, Lisa (Department: 2855)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S697000
Reexamination Certificate
active
08054627
ABSTRACT:
A computer system and method for measuring air density in a computer chassis. The computer chassis includes a fan, an ambient air temperature sensor, and a heat-generating device with a heat sink, a heat sink temperature sensor, and a controller. The controller controls the fan speed and applies a known amount of thermal energy to the heat sink, then determines the air density from the difference in temperature between the ambient air and the heat sink. The controller may then use the air density determination to adjust the air flow rate through the computer chassis to provide a proper air flow rate for cooling.
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Glover Troy Williams
June Michael Sean
Scott, III Whitcomb Randolph
Smith Robert Salguero
Caputo Lisa
International Business Machines - Corporation
Roy Punam
Seal Cynthia G.
Streets Jeffrey L.
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