WO2002077989A3 - Disc separator plate with air dam - Google Patents

Disc separator plate with air dam Download PDF

Info

Publication number
WO2002077989A3
WO2002077989A3 PCT/US2001/045452 US0145452W WO02077989A3 WO 2002077989 A3 WO2002077989 A3 WO 2002077989A3 US 0145452 W US0145452 W US 0145452W WO 02077989 A3 WO02077989 A3 WO 02077989A3
Authority
WO
WIPO (PCT)
Prior art keywords
disc
plate
trailing edge
head
air dam
Prior art date
Application number
PCT/US2001/045452
Other languages
French (fr)
Other versions
WO2002077989A2 (en
Inventor
Chad Ray Harrison
Eldon Leroy Nelson
David Scott Allsup
Jackson Wagner Nichols
Mohammad Noman Ahmad
Richard Gene Krum
Original Assignee
Seagate Technology Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seagate Technology Llc filed Critical Seagate Technology Llc
Priority to GB0322152A priority Critical patent/GB2389700A/en
Priority to KR10-2003-7012292A priority patent/KR20030081531A/en
Priority to JP2002575943A priority patent/JP2005509232A/en
Priority to DE10197217T priority patent/DE10197217T5/en
Publication of WO2002077989A2 publication Critical patent/WO2002077989A2/en
Publication of WO2002077989A3 publication Critical patent/WO2002077989A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/148—Reducing friction, adhesion, drag
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

A stationary disc separator plate (126) for use in a disc drive (100) to suppress turbulence near a read/write head (122) used to read data from and write data to a rotatable disc (108). A leading edge (136) and a trailing edge (138) of the plate define an open portion (128) to accommodate radial movement of the head adjacent the disc. A trailing edge air dam (140) disposed at the trailing edge of the plate diverts a substantial portion of an airflow generated by rotation of the disc away from the open portion to reduce an airflow velocity at the head. In disc drives having multiple discs, a plate is preferably disposed between each pair of adjacent discs. Air vents (154) preferably extend through the thickness of the plate to reduce aerodynamic drag and hence power consumption by the drive.
PCT/US2001/045452 2001-03-21 2001-10-31 Disc separator plate with air dam WO2002077989A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0322152A GB2389700A (en) 2001-03-21 2001-10-31 Disc separator plate with air dam
KR10-2003-7012292A KR20030081531A (en) 2001-03-21 2001-10-31 Disc separator plate with air dam
JP2002575943A JP2005509232A (en) 2001-03-21 2001-10-31 Disc separation plate with air weir
DE10197217T DE10197217T5 (en) 2001-03-21 2001-10-31 Panel cutting disc with air dam

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27776101P 2001-03-21 2001-03-21
US60/277,761 2001-03-21

Publications (2)

Publication Number Publication Date
WO2002077989A2 WO2002077989A2 (en) 2002-10-03
WO2002077989A3 true WO2002077989A3 (en) 2003-07-10

Family

ID=23062243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/045452 WO2002077989A2 (en) 2001-03-21 2001-10-31 Disc separator plate with air dam

Country Status (6)

Country Link
JP (1) JP2005509232A (en)
KR (1) KR20030081531A (en)
CN (1) CN1288635C (en)
DE (1) DE10197217T5 (en)
GB (1) GB2389700A (en)
WO (1) WO2002077989A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060146443A1 (en) * 2004-12-30 2006-07-06 Joseph Chang Method and apparatus for airflow transition edges on noise dampers in a hard disk drive
JP2006286153A (en) * 2005-04-05 2006-10-19 Seiko Instruments Inc Magnetic information recording device and recording medium driving device
JPWO2007043109A1 (en) * 2005-09-30 2009-04-16 富士通株式会社 Information storage device
JP4795853B2 (en) * 2006-06-05 2011-10-19 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ Magnetic disk unit
US9283608B2 (en) * 2013-05-13 2016-03-15 Intri-Plex Technologies, Inc. Disk separator plates and method of making disk separator plates for hard disk drives
CN105187733B (en) * 2014-06-06 2019-03-01 腾讯科技（北京）有限公司 Method for processing video frequency, device and terminal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583213A (en) * 1984-07-06 1986-04-15 Storage Technology Partners Ii Air shroud for data storage disks
US5189574A (en) * 1988-11-04 1993-02-23 Kabushiki Kaisha Toshiba Flexible information storing disk apparatus having laminar air flow
WO1999058995A1 (en) * 1998-05-11 1999-11-18 Kmy Instruments, Llc Disk head tester facility with non-repeatable runout reduction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583213A (en) * 1984-07-06 1986-04-15 Storage Technology Partners Ii Air shroud for data storage disks
US5189574A (en) * 1988-11-04 1993-02-23 Kabushiki Kaisha Toshiba Flexible information storing disk apparatus having laminar air flow
WO1999058995A1 (en) * 1998-05-11 1999-11-18 Kmy Instruments, Llc Disk head tester facility with non-repeatable runout reduction

Also Published As

Publication number Publication date
JP2005509232A (en) 2005-04-07
WO2002077989A2 (en) 2002-10-03
CN1524263A (en) 2004-08-25
GB0322152D0 (en) 2003-10-22
GB2389700A (en) 2003-12-17
KR20030081531A (en) 2003-10-17
DE10197217T5 (en) 2004-04-15
CN1288635C (en) 2006-12-06

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