Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2007-10-16
2007-10-16
Thompson, Gregory D (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C165S080300, C165S185000, C257S719000
Reexamination Certificate
active
11163516
ABSTRACT:
A heat dissipating assembly includes a heat sink (10) having a chassis (12), a back plate (30) and a plurality of fasteners (40). Each fastener includes a screw cap (42), a spring (44) and a sleeve (46). The screw cap and the sleeve are movably connected together. The screw cap includes a head (420) and a tube (422) extending from the head. The tube includes a first cavity (424) and a second cavity (426). The back plate forms a plurality of posts (34) passing through the chassis and threadedly engaging in the first cavities of the tubes. A spring (44) is compressed between the first cavity of the tube and a bottom wall of the sleeve, for providing appropriate downwardly pressing force on the chassis of the heat sink against a CPU (22) mounted on a PCB (20).
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Chen Chun-Chi
Wung Shih-Hsun
Yu Guang
Zhou Da-Yuan
Foxconn Technology Co., Ltd.
Fu Zhun Precision Industry (Shen Zhen) Co. Ltd.
Hsu Winston
Thompson Gregory D
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