System and apparatus for mass-balanced spoiler in disk...

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record

Reexamination Certificate

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C360S097010

Reexamination Certificate

active

08077430

ABSTRACT:
A system and apparatus for reducing flutter in disk drive spoilers positions the center of mass of the mean aerodynamic section of the spoiler at or ahead of the quarter-chord location nearest the leading edge of the spoiler. A balance weight may be formed in or attached to the spoiler. The center of gravity is located no farther back from the leading edge than one quarter-chord in a direction of the flow field. Alternatively, the spoiler trailing edge is lightened by making the trailing edge more porous or thinner than other sections of the spoiler.

REFERENCES:
patent: 4501398 (1985-02-01), Sandorff
patent: 4522360 (1985-06-01), Barnwell et al.
patent: 5016837 (1991-05-01), Willis
patent: 5056741 (1991-10-01), Bliesner et al.
patent: RE34207 (1993-03-01), Nelson et al.
patent: 5402969 (1995-04-01), Shea
patent: 5898545 (1999-04-01), Schirle
patent: 6560065 (2003-05-01), Yang et al.
patent: 6600625 (2003-07-01), Munninghoff et al.
patent: 6700736 (2004-03-01), Wu et al.
patent: 6788493 (2004-09-01), Subramaniam et al.
patent: 6961209 (2005-11-01), Bement et al.
patent: 6972926 (2005-12-01), Codilian
patent: 7027259 (2006-04-01), Myokan et al.
patent: 7123439 (2006-10-01), Chan et al.
patent: 2005/0041332 (2005-02-01), Chan et al.
patent: 63269392 (1988-11-01), None
Ono, Kyosuke, Study of Nanodynamics in Hard Disk Drive Technology, Micro-Nanomechatronics and Human Science, Oct. 31-Nov. 3, 2004, pp. 47-55.
Ikegawa, Masato, et al., Decreasing Airflow Velocity in Hard Disk Drives with a Spoiler and Bypass, IEEE Transactions on Magnetics, vol. 42, No. 10, Oct. 2006.
Hirono, Yoshiyuki, et al, Flow-Induced Vibration Reduction in HDD by Using a Spoiler, IEEE Transactions on Magnetics, vol. 40, No. 4, Jul. 2004.
Takada, Shigenori, Experimental Study on Flow-Induced Disk Flutter Dynamics by Measuring the Pressure Between Disks, Journal of Fluids Engineering, Mar. 2007, vol. 129, Issue 3, pp. 368-375.

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