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US5475564A Expired / Lapsed US ⏱️ 0.0 years remaining

CPU heat sink holding-down device

Assignee: Individual
•
Filing: 1994-12-20
•
Granted: 1995-12-12
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Expires: 2014-12-20
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Abstract

Abstract A CPU heat sink holding-down device including a CPU holder, a CPU mounted on the CPU holder, and a heat sink fastened to the CPU holder to hold down the CPU, wherein the heat sink has a fixed loop-like hanger pivotably disposed at one vertical side thereof and hung on a first retainer rod at one vertical side of the CPU holder, two locating bar extended out of an opposite vertical side thereof, a screw rod connected between the locating bars, a movable loop-like hanger turned about said screw rod and hung on a second retainer rod at an opposite vertical side of the CPU holder, and a curved spring plate connected to the movable loop-like hanger for lifting the movable loop-like hanger from the second retainer rod.

Inventors

  • 👤 Ming D. Chiou

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 18:08
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; H10W40/60; H10W40/641; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45524; Y10T24/45529

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 130 words
A CPU heat sink holding-down device comprising a CPU holder, a CPU mounted on said CPU holder, and a heat sink fastened to said CPU holder to hold down said CPU, wherein said heat sink comprises a fixed loop-like hanger pivotably disposed at one vertical side thereof hung on a first retainer rod at one vertical side of said CPU holder, two locating bars extended out of an opposite vertical side of said heat sink, a screw rod connected between said locating bars, a movable loop-like hanger turned about said screw rod and hung on a second retainer rod at an opposite vertical side of said CPU holder, and a curved spring plate connected to said movable loop-like hanger for lifting said movable loop-like hanger from said second retainer rod.
Claim 2
Dependent Claim 130 words
A CPU heat sink holding-down device comprising a CPU holder, a CPU mounted on said CPU holder, and a heat sink fastened to said CPU holder to hold down said CPU, wherein said heat sink comprises a fixed loop-like hanger pivotably disposed at one vertical side thereof hung on a first retainer rod at one vertical side of said CPU holder, two locating bars extended out of an opposite vertical side of said heat sink, a screw rod connected between said locating bars, a movable loop-like hanger turned about said screw rod and hung on a second retainer rod at an opposite vertical side of said CPU holder, and a curved spring plate connected to said movable loop-like hanger for lifting said movable loop-like hanger from said second retainer rod.

References Cited (Backward Citations)

US4589170A Cited
US5357404A Cited
US5208731A Cited
US5371652A Cited
US5386338A Cited
US5430610A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-12-11 1999-06-12 1999-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-12-11 2003-06-12 2003-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-12-11 2007-06-12 2007-12-12 $7700.00 Window Closed / Lapsed

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