US6188577B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device for central processing unit
Assignee: Individual
•
Filing: 1999-11-18
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Granted: 2001-02-13
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Expires: 2019-11-18
Abstract
Abstract A protective device for a central processing unit contains a supporter disposed on a central processing unit (CPU), wherein a window is formed in the central portion of the supporter; a plurality of predetermined support spring pieces are formed around the window for holding a heat sink to contact the CPU in a stable manner so that the heat produced by the CPU can be efficiently conducted to the heat sink.
Inventors
- 👤 Yen-Wen Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:43
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/20; H; H10; H10W; H10W40/00; H10W40/60; H10W40/641; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/304; Y10T24/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A protective device for maintaining full engagement between a chip on a top surface of a CPU and a bottom contact face of a heat sink secured to the CPU by a fastener assembly, the device comprising: a supporter defined by an outer peripheral portion for disposition on the top surface of the CPU and a central window portion for engagement of the chip therethrough by the bottom contact face of the heat sink; and a plurality of spring members spaced around the outer peripheral portion, each spring member extending inwardly from the peripheral portion and into the central window portion for engagement against the bottom contact surface of the heat sink to maintain the bottom contact surface in full engagement with a top surface of the chip and thereby permit heat produced by the chip to be efficiently and continuously conducted to the heat sink.
Claim 2
Dependent Claim
146 words
A protective device for maintaining full engagement between a chip on a top surface of a CPU and a bottom contact face of a heat sink secured to the CPU by a fastener assembly, the device comprising: a supporter defined by an outer peripheral portion for disposition on the top surface of the CPU and a central window portion for engagement of the chip therethrough by the bottom contact face of the heat sink; and a plurality of spring members spaced around the outer peripheral portion, each spring member extending inwardly from the peripheral portion and into the central window portion for engagement against the bottom contact surface of the heat sink to maintain the bottom contact surface in full engagement with a top surface of the chip and thereby permit heat produced by the chip to be efficiently and continuously conducted to the heat sink.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-02-13 | 2004-08-14 | 2005-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-13 | 2008-08-14 | 2009-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-13 | 2012-08-14 | 2013-02-13 | $7700.00 | Window Closed / Lapsed |