IT1020144B - EQUIPMENT FOR DATA STORAGE USING FLEXIBLE MAGNETIC DISCS - Google Patents

EQUIPMENT FOR DATA STORAGE USING FLEXIBLE MAGNETIC DISCS

Info

Publication number: IT1020144B
Authority: IT; Italy
Prior art keywords: equipment; data storage; flexible magnetic; magnetic discs; discs
Prior art date: 1973-10-12

Application number

IT26544/74A

Other languages

Italian (it)

Original Assignee

Ibm

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.)

1973-10-12

Filing date

1974-08-23

Publication date

1977-12-20

1974-08-23 Application filed by Ibm filed Critical Ibm

1977-12-20 Application granted granted Critical

1977-12-20 Publication of IT1020144B publication Critical patent/IT1020144B/en

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
- G11B17/34—Guiding record carriers during transducing operation, e.g. for track following
- 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
- G11B17/032—Positioning by moving the door or the cover
- 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

IT26544/74A 1973-10-12 1974-08-23 EQUIPMENT FOR DATA STORAGE USING FLEXIBLE MAGNETIC DISCS IT1020144B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US40613773A	1973-10-12	1973-10-12

Publications (1)

Publication Number	Publication Date
IT1020144B true IT1020144B (en)	1977-12-20

Family

ID=23606684

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT26544/74A IT1020144B (en)	1973-10-12	1974-08-23	EQUIPMENT FOR DATA STORAGE USING FLEXIBLE MAGNETIC DISCS

Country Status (9)

Country	Link
JP (1)	JPS5321850B2 (en)
BE (1)	BE820982A (en)
CA (1)	CA1056499A (en)
DE (1)	DE2441881B2 (en)
FR (1)	FR2247786B1 (en)
GB (1)	GB1465288A (en)
IT (1)	IT1020144B (en)
NL (1)	NL7412744A (en)
SE (1)	SE401285B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4151573A (en) *	1977-06-13	1979-04-24	Tandon Magnetics Corp.	Magnetic recording device for double sided media
DE2812574C3 (en) *	1978-03-22	1981-01-29	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Floppy disk drive
JPS6245329Y2 (en) *	1980-10-07	1987-12-03
AT391377B (en) *	1980-12-31	1990-09-25	Sony Corp	DRIVE UNIT FOR A FLEXIBLE PLATE
JPS57162147A (en) *	1981-03-27	1982-10-05	Nec Corp	Magnetic recorder

1974
- 1974-08-23 IT IT26544/74A patent/IT1020144B/en active
- 1974-08-30 FR FR7430004A patent/FR2247786B1/fr not_active Expired
- 1974-08-31 DE DE19742441881 patent/DE2441881B2/en active Granted
- 1974-09-19 CA CA209,552A patent/CA1056499A/en not_active Expired
- 1974-09-26 NL NL7412744A patent/NL7412744A/en not_active Application Discontinuation
- 1974-09-27 JP JP11067674A patent/JPS5321850B2/ja not_active Expired
- 1974-10-08 GB GB4344274A patent/GB1465288A/en not_active Expired
- 1974-10-09 SE SE7412659A patent/SE401285B/en unknown
- 1974-10-11 BE BE149454A patent/BE820982A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA1056499A (en)	1979-06-12
JPS5067620A (en)	1975-06-06
JPS5321850B2 (en)	1978-07-05
SE401285B (en)	1978-04-24
GB1465288A (en)	1977-02-23
SE7412659L (en)	1975-04-14
NL7412744A (en)	1975-04-15
DE2441881A1 (en)	1975-04-24
DE2441881B2 (en)	1976-04-29
FR2247786A1 (en)	1975-05-09
BE820982A (en)	1975-02-03
FR2247786B1 (en)	1978-10-27

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