Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2006-08-03
2010-06-08
Wellington, Andrea L (Department: 2627)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
C360S097020
Reexamination Certificate
active
07733599
ABSTRACT:
Embodiments of the invention provide a magnetic disk unit in which there has been adopted a structure fixing a base and a top plate and preventing a deformation by a bimetal effect. In one embodiment, the magnetic disk unit includes a magnetic disk; a head drive mechanism in which is mounted a head accessing the magnetic disk; a base accommodating the magnetic disk and the head drive mechanism, and possessing a flat part, in which a threaded hole has been formed, in a circumference of an opening edge; and a top cover which is formed by a material whose thermal expansion coefficient differs from that of the base, in which there is provided an escape hole, for a screw, position-aligned to the threaded hole of the flat part, and which is attached to the base by the screw penetrating through the threaded hole and the escape hole for the screw. A slip mechanism for reducing a slip friction resistance is provided respectively in a contact portion between the flat part and the top cover, and a contact portion between a head part of the screw and the top cover.
REFERENCES:
patent: 4845581 (1989-07-01), Bronshvatch
patent: 4937691 (1990-06-01), Narayan et al.
patent: 5214549 (1993-05-01), Baker et al.
patent: 5282101 (1994-01-01), Reinisch
patent: 5568341 (1996-10-01), Shikano
patent: 6046393 (2000-04-01), Rose
patent: 2002/0057521 (2002-05-01), Imaino et al.
patent: 2004/0057813 (2004-03-01), Horng et al.
patent: 2008/0024909 (2008-01-01), Ang et al.
patent: 0 428 290 (1991-05-01), None
patent: 61-260486 (1986-11-01), None
patent: 2-101392 (1990-08-01), None
patent: 06-162758 (1994-06-01), None
patent: 10184447 (1998-07-01), None
patent: WO96/17349 (1996-06-01), None
“Expansion Absorbing Element To Prevent Warping Of Actuator And Media Axes” IBM Technical Disclosure Bulletin, IBM Corp. New York, US ; vol. 33, No. 2, Jul. 1, 1990, XP000123636; ISSN: 0018-8689.
European Search Report for EP Application No. 06012893.1-2210, dated Jun. 10, 2008, 6 pages total.
Iwakura Masao
Miyatake Masami
Shigenaga Hiroaki
Yonekawa Sunao
Henkhaus John
Hitachi Global Storage Technologies - Netherlands B.V.
Polo Gustavo
Townsend and Townsend / and Crew LLP
Wellington Andrea L
LandOfFree
Structure to prevent deformation of magnetic disk device... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Structure to prevent deformation of magnetic disk device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure to prevent deformation of magnetic disk device... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4215971