FR2142352A5 - - Google Patents

Info

Publication number
FR2142352A5
FR2142352A5 FR7219230A FR7219230A FR2142352A5 FR 2142352 A5 FR2142352 A5 FR 2142352A5 FR 7219230 A FR7219230 A FR 7219230A FR 7219230 A FR7219230 A FR 7219230A FR 2142352 A5 FR2142352 A5 FR 2142352A5
Authority
FR
France
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
FR7219230A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR2142352A5 publication Critical patent/FR2142352A5/fr
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
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
    • 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
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
    • 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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
FR7219230A 1971-06-18 1972-05-24 Expired FR2142352A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15433071A 1971-06-18 1971-06-18

Publications (1)

Publication Number Publication Date
FR2142352A5 true FR2142352A5 (fr) 1973-01-26

Family

ID=22550920

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7219230A Expired FR2142352A5 (fr) 1971-06-18 1972-05-24

Country Status (7)

Country Link
US (1) US3729720A (fr)
JP (1) JPS5240571B1 (fr)
CA (1) CA1012641A (fr)
DE (1) DE2225093C3 (fr)
FR (1) FR2142352A5 (fr)
GB (1) GB1322478A (fr)
IT (1) IT950706B (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257946C3 (de) * 1972-11-25 1981-07-23 Basf Ag, 6700 Ludwigshafen Behälter für einen scheibenförmigen Aufzeichnungsträger und ein Antriebsgerät zu seiner Verwendung
US3964101A (en) * 1973-06-15 1976-06-15 Tetsuo Hino Magnetic recording disc
US3846837A (en) * 1973-06-20 1974-11-05 Intelligent Memory Syst Inc Stacked flexible disc unit with head plugs
US3810243A (en) * 1973-07-02 1974-05-07 Ibm Selectively tensioned transducer assembly for operation in compliant relation to individual memory discs of a partitionable aggregate of rotating flexible discs
US3855624A (en) * 1973-08-15 1974-12-17 Philips Corp Grooved air bearing head
US4358802A (en) * 1973-10-01 1982-11-09 Mca Disco-Vision, Inc. Fluid cushion turntable for video disc player
US3990111A (en) * 1973-10-12 1976-11-02 International Business Machines Corporation Data storage apparatus employing a flexible magnetic disk
US3972054A (en) * 1974-02-19 1976-07-27 Addressograph Multigraph Corporation Indicia disc
US3968972A (en) * 1974-06-21 1976-07-13 Sycor, Inc. Self centering hub for flexible recording discs and the like
US3951264A (en) * 1974-10-29 1976-04-20 Dynastor, Inc. Flexible disc cartridge
NL182594C (nl) * 1975-03-12 1988-04-05 Philips Nv Afspeelinrichting, in het bijzonder videospeler, voor het afspelen van een van een centraal gat voorziene uit transparant materiaal vervaardigde plaat, alsmede aanpassingsplaat ten gebruike bij deze inrichting.
US4052750A (en) * 1975-12-05 1977-10-04 Dysan Corporation Flexible recording disk with improved spindle mounting means
US4060839A (en) * 1976-01-07 1977-11-29 Texas Instruments Incorporated Flexible information storage disc
US4069508A (en) * 1976-02-25 1978-01-17 Texas Instruments Incorporated Flexible magnetic disc recording system
US4222070A (en) * 1978-03-13 1980-09-09 Eastman Kodak Company Recording video information on a flexible master disc
US4480282A (en) * 1982-02-22 1984-10-30 Verbatim Corporation Stabilized locating ring for a flexible disk
US4631620A (en) * 1984-03-23 1986-12-23 Fuji Photo Film Co., Ltd. Magnetic disk cartridge
NL8403582A (nl) * 1984-11-26 1986-06-16 Philips Nv Inrichting voor het centreren, richten en vastklemmen van een optische plaat.
GB8507944D0 (en) * 1985-03-27 1985-05-01 Automation Facilities Ltd Microfloppy disc drive head cleaner
NL8503563A (nl) * 1985-12-24 1987-07-16 Nagron Precision Tooling Schijfvormige informatiedrager met van een centraal gat voorzien inzetstuk.
CA1320569C (fr) * 1986-12-01 1993-07-20 Hendrikus W.C.M. Peeters Disque a lecture optique a auto-centrage
JPH02126463A (ja) * 1988-11-04 1990-05-15 Toshiba Corp 磁気ディスク装置
US20070263316A1 (en) * 2006-05-11 2007-11-15 Dickson/Unigage, Inc. Method And Apparatus For Supporting And Orienting A Workpiece And A Workpiece For Use Therewith

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390385A (en) * 1966-02-01 1968-06-25 Sperry Rand Corp Magnetic drum recording apparatus with replaceable sleeve

Also Published As

Publication number Publication date
GB1322478A (en) 1973-07-04
IT950706B (it) 1973-06-20
DE2225093A1 (de) 1972-12-21
US3729720A (en) 1973-04-24
DE2225093C3 (de) 1980-10-02
DE2225093B2 (de) 1980-01-31
CA1012641A (en) 1977-06-21
JPS5240571B1 (fr) 1977-10-13

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Legal Events

Date Code Title Description
ST Notification of lapse