SE7506875L - Anordning vid skivminnen. - Google Patents

Anordning vid skivminnen.

Info

Publication number: SE7506875L
Authority: SE; Sweden
Prior art keywords: disc memory; disc; memory
Prior art date: 1974-06-19

Application number

SE7506875A

Other languages

English (en)

Other versions

SE409524B (sv

Inventor

D E Griffiths

J H Koestner

D G Norton

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.)

1974-06-19

Filing date

1975-06-16

Publication date

1975-12-22

1975-06-16 Application filed by Ibm filed Critical Ibm

1975-12-22 Publication of SE7506875L publication Critical patent/SE7506875L/sv

1979-08-20 Publication of SE409524B publication Critical patent/SE409524B/sv

Classifications

- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- 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
- G11B17/021—Selecting or spacing of record carriers for introducing the heads

SE7506875A 1974-06-19 1975-06-16 Anordning for separering av flexibla uppteckningsberare SE409524B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/480,990 US3940794A (en)	1974-06-19	1974-06-19	Stacked flexible record disk storage apparatus having enhanced disk separation

Publications (2)

Publication Number	Publication Date
SE7506875L true SE7506875L (sv)	1975-12-22
SE409524B SE409524B (sv)	1979-08-20

Family

ID=23910144

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7506875A SE409524B (sv)	1974-06-19	1975-06-16	Anordning for separering av flexibla uppteckningsberare

Country Status (14)

Country	Link
US (1)	US3940794A (sv)
JP (2)	JPS5551261B2 (sv)
AR (1)	AR212013A1 (sv)
BE (1)	BE830431A (sv)
BR (1)	BR7503858A (sv)
CA (2)	CA1038492A (sv)
CH (1)	CH593539A5 (sv)
DE (1)	DE2517915B2 (sv)
FR (1)	FR2275845A1 (sv)
GB (1)	GB1499736A (sv)
IT (1)	IT1037602B (sv)
NL (1)	NL7506923A (sv)
SE (1)	SE409524B (sv)
SU (1)	SU667165A3 (sv)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4011590A (en) *	1975-11-04	1977-03-08	International Business Machines Corporation	Internal division actuation of ventilated floppy disk stack
US4011591A (en) *	1975-11-04	1977-03-08	International Business Machines Corporation	Internal division actuation of ventilated floppy disk stack
US4019204A (en) *	1975-11-19	1977-04-19	International Business Machines Corporation	Fluidic transducer access opening in a stack of flexible record disks
US4191981A (en) *	1975-12-19	1980-03-04	International Business Machines Corporation	Record storage apparatus employing enhanced transducer positioning servomechanisms
US4030136A (en) *	1976-02-13	1977-06-14	International Business Machines Corporation	Flexible disk pack accessing apparatus and method
US4003091A (en) *	1976-03-08	1977-01-11	International Business Machines Corporation	Transducer support and stabilizer
US4291349A (en) *	1976-08-04	1981-09-22	Burroughs Corporation	Diverter means for flexible disk pack and associated method
US4134143A (en) *	1976-08-04	1979-01-09	Burroughs Corporation	Apparatus for driving and controlling a partitionable flexible disk pack
US4214286A (en) *	1976-08-04	1980-07-22	Burroughs Corporation	Flexible disk pack and improved transducing-manipulation thereof
US4148084A (en) *	1977-07-05	1979-04-03	Burroughs Corporation	Flexible disk pack, related storage apparatus having disks with circumferential tab segments and associated partition means
US4175275A (en) *	1978-05-22	1979-11-20	International Business Machines Corporation	R/W Arm that prevents catastrophic failure
DE2840851A1 (de) *	1978-09-20	1980-04-03	Ibm Deutschland	Vorrichtung zum spreizen eines rotierenden stapels flexibler magnetischer aufzeichnungstraeger
US4286298A (en) *	1979-12-17	1981-08-25	International Business Machines Corporation	Preloaded head arm assembly
US4571645A (en) *	1982-07-29	1986-02-18	Ixi Laboratories, Inc.	Horizontal flexible disk loading and sorting/collating mechanism
US4912753A (en) *	1988-04-04	1990-03-27	Hughes Aircraft Company	Robot axis controller employing feedback and open loop (feedforward) control
JP2814975B2 (ja) *	1996-01-16	1998-10-27	日本電気株式会社	磁気ヘッド及び磁気ディスク装置
US6791791B1 (en)	2001-11-30	2004-09-14	Western Digital Technologies, Inc.	Disk drive with disks having different disk stiffness, thickness and material combinations
US7986491B2 (en) *	2008-10-09	2011-07-26	Hitachi Global Storage Technologies Netherlands B.V.	Hard disk drive with disk separator for creating axial gaps between disks for access by read/write heads
US8208215B2 (en) *	2009-02-10	2012-06-26	Hitachi Global Storage Technologies Netherlands, B.V.	Techniques for emulating sequential device with constrained disk drive
US10214367B2 (en) *	2016-06-03	2019-02-26	Gruma S.A.B. De C.V.	Rotating stacker
US10269380B1 (en) *	2017-11-14	2019-04-23	Seagate Technology Llc	Disk drive having multiple disks accessible by a reduced number of read/write heads
US11423927B2 (en)	2018-04-27	2022-08-23	Seagate Technology Llc	Assembly that enables reduction in disk to disk spacing
US10811045B2 (en)	2018-04-27	2020-10-20	Seagate Technology Llc	Assembly that enables reduction in disk to disk spacing
US11043235B2 (en)	2018-04-27	2021-06-22	Seagate Technology Llc	Assembly that enables reduction in disk to disk spacing
US10706879B2 (en) *	2018-07-19	2020-07-07	Western Digital Technologies, Inc.	Vertically translating load/unload ramp mechanism for cold storage data storage device
US10930307B2 (en) *	2019-01-14	2021-02-23	Western Digital Technologies, Inc.	Piezoelectric-based locking of actuator elevator mechanism for cold storage data storage device
WO2021011011A1 (en)	2019-07-18	2021-01-21	Western Digital Technologies, Inc.	Vertically translating load/unload ramp mechanism for cold storage data storage device
US11094347B1 (en)	2020-04-30	2021-08-17	Seagate Technology Llc	Split ramp for data storage devices
US11308984B2 (en)	2020-06-24	2022-04-19	Seagate Technology Llc	Retractable ramp for data storage devices
US11756579B2 (en)	2020-06-24	2023-09-12	Seagate Technology Llc	Moveable ramp for data storage device
US10916271B1 (en)	2020-06-25	2021-02-09	Western Digital Technologies, Inc.	Eliminating lead screw hysteresis for vertically translating load/unload ramp mechanism for data storage device
US11651784B2 (en)	2020-09-02	2023-05-16	Seagate Technology Llc	Actuators for an elevator drive
US11120834B1 (en)	2020-09-02	2021-09-14	Seagate Technology Llc	Actuators for an elevator drive
US11443763B1 (en)	2021-06-18	2022-09-13	Seagate Technology Llc	Disk drive with multiple actuators on a pivot axis

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE553009A (sv) *	1955-02-02
NL6603388A (sv) *	1965-03-30	1966-10-03
US3703713A (en) *	1971-09-24	1972-11-21	Univ Iowa State Res Found	Variable diameter disc pack with cooperating head
US3731292A (en) *	1971-09-27	1973-05-01	Arvin Ind Inc	Finger between flexible disc and backing plate
US3838462A (en) *	1973-07-02	1974-09-24	Ibm	Partitionable disc memory with flexible discs and conformally suspended head
US3852820A (en) *	1973-07-02	1974-12-03	Ibm	Stabilization of partitionable memory with flexible rotating discs

1974
- 1974-06-19 US US05/480,990 patent/US3940794A/en not_active Expired - Lifetime
1975
- 1975-04-23 CA CA225,807A patent/CA1038492A/en not_active Expired
- 1975-04-23 CA CA225,806A patent/CA1038491A/en not_active Expired
- 1975-04-23 DE DE19752517915 patent/DE2517915B2/de active Granted
- 1975-04-24 IT IT22701/75A patent/IT1037602B/it active
- 1975-05-06 FR FR7515090A patent/FR2275845A1/fr active Granted
- 1975-05-08 GB GB19329/75A patent/GB1499736A/en not_active Expired
- 1975-05-14 CH CH618875A patent/CH593539A5/xx not_active IP Right Cessation
- 1975-06-11 NL NL7506923A patent/NL7506923A/xx not_active Application Discontinuation
- 1975-06-13 AR AR259198A patent/AR212013A1/es active
- 1975-06-16 SE SE7506875A patent/SE409524B/sv unknown
- 1975-06-18 SU SU752146727A patent/SU667165A3/ru active
- 1975-06-19 JP JP7384975A patent/JPS5551261B2/ja not_active Expired
- 1975-06-19 BE BE157499A patent/BE830431A/xx not_active IP Right Cessation
- 1975-06-19 BR BR4962/75D patent/BR7503858A/pt unknown
1977
- 1977-08-04 JP JP9307877A patent/JPS5316608A/ja active Pending

Also Published As

Publication number	Publication date
BE830431A (fr)	1975-10-16
GB1499736A (en)	1978-02-01
BR7503858A (pt)	1976-07-06
DE2517915B2 (de)	1977-12-15
FR2275845B1 (sv)	1977-04-15
JPS5114010A (sv)	1976-02-04
NL7506923A (nl)	1975-12-23
JPS5316608A (en)	1978-02-15
DE2517915C3 (sv)	1978-08-17
IT1037602B (it)	1979-11-20
CA1038491A (en)	1978-09-12
DE2517915A1 (de)	1976-01-08
AR212013A1 (es)	1978-04-28
CA1038492A (en)	1978-09-12
SE409524B (sv)	1979-08-20
JPS5551261B2 (sv)	1980-12-23
US3940794A (en)	1976-02-24
FR2275845A1 (fr)	1976-01-16
SU667165A3 (ru)	1979-06-05
CH593539A5 (sv)	1977-12-15

Publication	Publication Date	Title
SE7506875L (sv)	1975-12-22	Anordning vid skivminnen.
NL7510553A (nl)	1976-04-01	Afleesinrichting.
NL7513758A (nl)	1976-05-28	Akousto-optisch toestel.
NL7511906A (nl)	1976-04-13	Halfgeleiderinrichting.
NL7503870A (nl)	1975-10-02	Halfgeleiderinrichting.
NL7507198A (nl)	1975-12-30	Band-lei-inrichting.
SE7508573L (sv)	1976-01-30	Anordning vid anggenerator.
NL7509859A (nl)	1976-02-23	Halfgeleiderinrichting.
NL7515076A (nl)	1976-06-29	Halfgeleiderinrichting.
NL7512559A (nl)	1976-04-28	Halfgeleiderinrichting.
NL7514642A (nl)	1976-06-18	Halfgeleidergeheugeninrichting.
NL7401939A (nl)	1975-08-15	Ladingsgekoppelde inrichting.
NL7506450A (nl)	1975-12-09	Halfgeleiderinrichting.
NL7513365A (nl)	1976-05-18	Opslaginrichting.
NL7513144A (nl)	1976-05-13	Informatiegeheugeninrichting.
NL7509215A (nl)	1976-02-04	Uitleesinrichting.
NL7507015A (nl)	1975-12-16	Halfgeleiderinrichting .
SE7509314L (sv)	1976-02-23	Anordning vid en vexelriktare.
NL7509804A (nl)	1976-02-23	Halfgeleiderinrichting.
NL7510856A (nl)	1976-04-21	Pijpleiding-stand-regelinrichting.
NL7504673A (nl)	1975-10-21	Halfgeleiderinrichting.
NL7413207A (nl)	1976-04-12	Halfgeleiderinrichting.
SE7506371L (sv)	1975-12-12	Anordning vid metspo.
NL7511742A (nl)	1976-04-09	Halfgeleiderinrichting.
SE7508817L (sv)	1976-02-09	Anordning vid tradradiosystem.