U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Fan-cooled card

Patent 6452797 Issued on September 17, 2002. Estimated Expiration Date: Icon_subject November 12, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Inventor

Application

No. 968399 filed on 11/12/1997

US Classes:

361/695, Fan or blower165/80.3, Air cooled, including fins257/E23.099, By flowing gases, e.g., air (EPO)361/687, With cooling means454/184ELECTRONIC CABINET

Examiners

Primary: Tolin, Gerald P.

Attorney, Agent or Firm

International Class

H05K 007/20

Abstract

To manage heat generated by an electric circuit, a fan is provided to generate an air flow through a ducting structure over the electric circuit. For example, in a graphics accelerator card, a fan is placed in a void in the card and a ducting structure is placed over the fan and the graphics controller IC chip of the card. Air flow generated by the fan travels over the IC chip via the ducting structure to reduce the ambient temperature around the IC chip. The height of the ducting structure from a surface of the graphics accelerator card may be made sufficiently small so as to satisfy height requirements set forth in specifications such as the Peripheral Component Interconnect (PCI) and Accelerated Graphics Port (AGP) specifications.

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