GB2021837B

GB2021837B – Read/write magnetic head with compound-foil
– Google Patents

GB2021837B – Read/write magnetic head with compound-foil
– Google Patents
Read/write magnetic head with compound-foil

Info

Publication number
GB2021837B

GB2021837B
GB7915050A
GB7915050A
GB2021837B
GB 2021837 B
GB2021837 B
GB 2021837B
GB 7915050 A
GB7915050 A
GB 7915050A
GB 7915050 A
GB7915050 A
GB 7915050A
GB 2021837 B
GB2021837 B
GB 2021837B
Authority
GB
United Kingdom
Prior art keywords
foil
read
compound
magnetic head
write magnetic
Prior art date
1978-05-26
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
GB7915050A
Other versions

GB2021837A
(en

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.)

Unisys Corp

Original Assignee
Burroughs 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.)
1978-05-26
Filing date
1979-05-01
Publication date
1982-06-30

1979-05-01
Application filed by Burroughs Corp
filed
Critical
Burroughs Corp

1979-12-05
Publication of GB2021837A
publication
Critical
patent/GB2021837A/en

1982-06-30
Application granted
granted
Critical

1982-06-30
Publication of GB2021837B
publication
Critical
patent/GB2021837B/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G11—INFORMATION STORAGE

G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER

G11B21/00—Head arrangements not specific to the method of recording or reproducing

G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads

G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier

G—PHYSICS

G11—INFORMATION STORAGE

G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER

G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function

G11B15/60—Guiding record carrier

G11B15/62—Maintaining desired spacing between record carrier and head

G11B15/64—Maintaining desired spacing between record carrier and head by fluid-dynamic spacing

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

G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

G11B5/127—Structure or manufacture of heads, e.g. inductive

G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

GB7915050A
1978-05-26
1979-05-01
Read/write magnetic head with compound-foil

Expired

GB2021837B
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US05/909,793

US4163267A
(en)

1978-05-26
1978-05-26
Flying head with compound-foil

Publications (2)

Publication Number
Publication Date

GB2021837A

GB2021837A
(en)

1979-12-05

GB2021837B
true

GB2021837B
(en)

1982-06-30

Family
ID=25427843
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB7915050A
Expired

GB2021837B
(en)

1978-05-26
1979-05-01
Read/write magnetic head with compound-foil

Country Status (3)

Country
Link

US
(1)

US4163267A
(en)

GB
(1)

GB2021837B
(en)

MX
(1)

MX146385A
(en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US5140480A
(en)

*

1978-05-26
1992-08-18
Unisys Corporation
Method for transducing with a flying head with foil support

US4396965A
(en)

*

1979-08-06
1983-08-02
Burroughs Corporation
Flying head with foil support

US4301486A
(en)

*

1979-06-04
1981-11-17
Texas Instruments, Inc.
System for recording information on a flexible information storage media

US4449155A
(en)

*

1981-11-16
1984-05-15
Dma Systems Corporation
Gimbal assembly for flying magnetic transducer heads

CA1215778A
(en)

*

1983-05-19
1986-12-23
James K. Knudsen
Transducer-slider assembly having contoured air- bearing surface

GB2148578B
(en)

*

1983-10-17
1986-10-29
Magnetic Peripherals Inc
A self-loading magnetic head slider

US4700248A
(en)

*

1986-03-17
1987-10-13
Polaroid Corporation
Magnetic head assembly with angled slots

JPS6378304A
(en)

*

1986-09-20
1988-04-08
Pioneer Electronic Corp
Rotary head type digital audio recording and reproducing device

US4757402A
(en)

*

1986-10-03
1988-07-12
Censtor Corp.
Slider assembly for supporting a magnetic head

EP0502463B1
(en)

*

1991-03-04
1997-10-22
Canon Kabushiki Kaisha
Recording or reproducing apparatus and head supporting device

US5969912A
(en)

*

1997-12-10
1999-10-19
Cope; James Robert
Bidirectional magnetic read/write recording head surface contour with plurality of Bernoulli Pocket cavities for generating very low media-to-head separations

US7012785B2
(en)

*

2002-10-07
2006-03-14
Samsung Electronics Co., Ltd.
Method and apparatus for head slider and suspension reducing air flow turbulence about the slider when accessing a rotating disk in a disk drive

JP2004134043A
(en)

*

2002-10-15
2004-04-30
Alps Electric Co Ltd
Rotary head apparatus and magnetic reproducing device using the same

US20070297080A1
(en)

*

2006-06-23
2007-12-27
Lee Sungchang
Apparatus and method for bending a slider to create rounded corners on its trailing edge in a hard disk drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3678482A
(en)

*

1970-08-26
1972-07-18
Burroughs Corp
Multiple surface fluid film bearing

JPS5622072B2
(en)

*

1973-02-16
1981-05-22

US3961372A
(en)

*

1974-07-05
1976-06-01
International Business Machines Corporation
Magnetic tape transport with slotted rotating head

DE2526296C3
(en)

*

1975-06-12
1978-05-18
Eppendorf Geraetebau Netheler + Hinz Gmbh, 2000 Hamburg

Snap-on pipette tip

US4003091A
(en)

*

1976-03-08
1977-01-11
International Business Machines Corporation
Transducer support and stabilizer

1978

1978-05-26
US
US05/909,793
patent/US4163267A/en
not_active
Expired – Lifetime

1979

1979-05-01
GB
GB7915050A
patent/GB2021837B/en
not_active
Expired

1979-05-24
MX
MX177786A
patent/MX146385A/en
unknown

Also Published As

Publication number
Publication date

GB2021837A
(en)

1979-12-05

US4163267A
(en)

1979-07-31

MX146385A
(en)

1982-06-17

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Legal Events

Date
Code
Title
Description

1985-12-24
732
Registration of transactions, instruments or events in the register (sect. 32/1977)

1999-05-26
PE20
Patent expired after termination of 20 years

Effective date:
19990430

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