Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2006-04-11
2006-04-11
Renner, Craig A. (Department: 2652)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
C360S097030
Reexamination Certificate
active
07027260
ABSTRACT:
A disk spacer coupled to an outer circumference of a hub of a spindle motor in a hard disk drive to support at least one data storage disk, wherein at least one groove generating flow of air toward an outer circumference of the disk is formed at an outer circumferential surface of the spacer. The groove is formed to be deeper from an arbitrary position on the outer circumferential surface of the spacer in a direction opposite to a rotation direction of the disk, and has a blade surface extending from the deepest position to the outer circumferential surface. The blade surface is substantially perpendicular to a tangential line at the outer circumferential surface of the spacer.
REFERENCES:
patent: 4683505 (1987-07-01), Schmidt et al.
patent: 4819105 (1989-04-01), Edwards
patent: 4873594 (1989-10-01), Chen
patent: 2003/0179492 (2003-09-01), Kang et al.
patent: 3010236 (1980-09-01), None
patent: 57179977 (1982-11-01), None
patent: 58-155519 (1983-09-01), None
patent: 61-156580 (1986-07-01), None
patent: 01-276479 (1989-11-01), None
patent: 3-121577 (1991-12-01), None
patent: 10162548 (1998-06-01), None
patent: 11-297037 (1999-10-01), None
patent: 2000-82274 (2000-03-01), None
JP 61-156580 is related to U.S. Patent 4,683,505 issued to Schmidt et al.
Japanese Office Action issued on Nov. 8, 2005 in Japanese Application No. 2003-157602.
Renner Craig A.
Staas & Halsey , LLP
LandOfFree
Disk spacer with gradually deepening groove formed only in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disk spacer with gradually deepening groove formed only in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk spacer with gradually deepening groove formed only in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3611757