Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2011-06-14
2011-06-14
Chervinsky, Boris L (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S704000, C361S709000, C257S718000, C257S719000, C257S727000, C165S080300, C174S016100, C174S016300
Reexamination Certificate
active
07961473
ABSTRACT:
An integrated circuit is disposed on a circuit board. A heat sink retention module includes a bracket, members, and coil springs. The members extend through the coil springs and corresponding holes within the bracket to attach to the board. A heat sink is removably installed within the bracket in a toolless manner, such that the heat sink comes into contact with the integrated circuit. The heat sink and the bracket join together to become a single entity that is permitted to float along an axis perpendicular to a surface of the circuit board. The coil springs are tuned to define a predetermined force at which the heat sink is pushed against the integrated circuit. The module can include a latch having tabs bent at different angles relative to one another to balance forces applied by the tabs against the heat sink while the latter is being installed within the bracket.
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Bohannon Mark S.
Gallarelli Pat
Schmidt Derek I.
Chervinsky Boris L
International Business Machines - Corporation
Tyson Thomas E.
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