Heat exchange – With retainer for removable article – Electrical component
Reexamination Certificate
2006-02-02
2009-12-08
Flanigan, Allen J (Department: 3744)
Heat exchange
With retainer for removable article
Electrical component
C165S080300, C361S699000, C366S273000
Reexamination Certificate
active
07628198
ABSTRACT:
A heat sink has a heat spreader structure containing magneto-hydrodynamic fluid. Also, the heat spreader includes a central metallic cylinder and a metal ring screen surrounding the central metallic cylinder. Electrical and magnetic fields induce the magneto-hydrodynamic fluid to undergo a swirling motion. The swirling motion acts as an MHD pump and provides efficient heat dissipation from a heat source contacting the heat spreader. A heat sink spreader has a central metallic cylinder surrounded by a metallic ring screen, and a magneto-hydrodynamic fluid. A method of cooling the heat sink spreader includes electrically charging the central metallic cylinder and oppositely electrically charging the metallic ring screen to create an electric potential between the central metallic cylinder and the metallic ring screen; creating a magnetic field inside the heat sink spreader; and swirling the magneto-hydrodynamic fluid to cool a heat source, wherein the swirling motion is induced by the electric potential and the magnetic fields.
REFERENCES:
patent: 3812404 (1974-05-01), Barkan et al.
patent: 4067237 (1978-01-01), Arcella
patent: 4519447 (1985-05-01), Wiech, Jr.
patent: 5144531 (1992-09-01), Go et al.
patent: 5339214 (1994-08-01), Nelson
patent: 5355942 (1994-10-01), Conte
patent: 5365749 (1994-11-01), Porter
patent: 5533567 (1996-07-01), Van Putten et al.
patent: 5880524 (1999-03-01), Xie
patent: 5978220 (1999-11-01), Frey et al.
patent: 6019165 (2000-02-01), Batchelder
patent: 6766817 (2004-07-01), da Silva et al.
patent: 6918404 (2005-07-01), Dias da Silva et al.
patent: 6942018 (2005-09-01), Goodson et al.
patent: 7066586 (2006-06-01), da Silva et al.
patent: 7143648 (2006-12-01), Pristup
patent: 7265977 (2007-09-01), Martin et al.
patent: 2002/0046825 (2002-04-01), Huang et al.
patent: 2002/0143225 (2002-10-01), Kagitani
patent: 2004/0234379 (2004-11-01), Miner et al.
patent: 2005/0160752 (2005-07-01), Ghoshal et al.
patent: 2008/0279698 (2008-11-01), Bau
U.S. Office Action issued in U.S. Appl. No. 11/313,392 mailed on Feb. 21, 2008, 14 pages.
Flanigan Allen J
Osha • Liang LLP
Sun Microsystems Inc.
LandOfFree
Cooling technique using a heat sink containing swirling... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooling technique using a heat sink containing swirling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooling technique using a heat sink containing swirling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4082047