GB1251619A - - Google Patents

Info

Publication number
GB1251619A
GB1251619A GB1251619DA GB1251619A GB 1251619 A GB1251619 A GB 1251619A GB 1251619D A GB1251619D A GB 1251619DA GB 1251619 A GB1251619 A GB 1251619A
Authority
GB
United Kingdom
Prior art keywords
disc
fluid
magnetic
heading
april
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1251619A publication Critical patent/GB1251619A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
    • G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G11B5/825—Disk carriers flexible discs

Landscapes

  • Magnetic Record Carriers (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
GB1251619D 1969-04-21 1970-03-17 Expired GB1251619A (cg-RX-API-DMAC10.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81772769A 1969-04-21 1969-04-21

Publications (1)

Publication Number Publication Date
GB1251619A true GB1251619A (cg-RX-API-DMAC10.html) 1971-10-27

Family

ID=25223757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251619D Expired GB1251619A (cg-RX-API-DMAC10.html) 1969-04-21 1970-03-17

Country Status (4)

Country Link
US (1) US3573771A (cg-RX-API-DMAC10.html)
DE (1) DE2018753A1 (cg-RX-API-DMAC10.html)
FR (1) FR2039313A1 (cg-RX-API-DMAC10.html)
GB (1) GB1251619A (cg-RX-API-DMAC10.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731291A (en) * 1971-04-12 1973-05-01 Burroughs Corp Integrated positive pressure and self-purge system
JPS5141044B2 (cg-RX-API-DMAC10.html) * 1971-12-28 1976-11-08
US3846835A (en) * 1973-05-29 1974-11-05 Sperry Rand Corp Clean air system for magnetic storage disk pack
US4268878A (en) * 1979-06-01 1981-05-19 New World Computer Company, Inc. Gas circulation and filtration apparatus for magnetic disc recording systems
US4558383A (en) * 1983-06-30 1985-12-10 International Business Machines Corporation Information storage disk transducer position control system using a prerecorded servo pattern requiring no alignment with the storage disk
JP2002313075A (ja) * 2001-04-11 2002-10-25 Hitachi Ltd 磁気ディスク装置
US7212377B1 (en) * 2004-03-31 2007-05-01 Western Digital Technologies, Inc. Disk drive having apertures near the ID of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter
US7224551B1 (en) 2004-05-15 2007-05-29 Western Digital Technologies, Inc. Disk drive having apertures aligned near the inner diameter of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950353A (en) * 1955-07-05 1960-08-23 Litton Industries Inc Pliant disk magnetic recording apparatus
US3110889A (en) * 1960-05-02 1963-11-12 Lab For Electronics Inc Magnetic disc storage device
US3135949A (en) * 1960-07-22 1964-06-02 Scm Corp Disk memory device
US3303485A (en) * 1963-03-18 1967-02-07 Ampex Magnetic disc with air bearing which spirals radially outward
US3381285A (en) * 1965-03-17 1968-04-30 Gen Precision Systems Inc Serrated record disc with internally generated air pressure

Also Published As

Publication number Publication date
DE2018753A1 (de) 1970-11-05
US3573771A (en) 1971-04-06
FR2039313A1 (cg-RX-API-DMAC10.html) 1971-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee