CA992202A - Dual gap magnetic head assembly employing electrical interhead and intertrack shielding - Google Patents

Dual gap magnetic head assembly employing electrical interhead and intertrack shielding

Info

Publication number: CA992202A
Authority: CA; Canada
Prior art keywords: interhead; intertrack; shielding; magnetic head; head assembly
Prior art date: 1971-05-12
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

CA122,813A

Other languages

English (en)

Other versions

CA122813S (en

Inventor

Richard E. Braun

Lionel G. Hopkins

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.)

Magnetic Head Corp

Original Assignee

Magnetic Head 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.)

1971-05-12

Filing date

1971-09-14

Publication date

1976-06-29

1971-09-14 Application filed by Magnetic Head Corp filed Critical Magnetic Head Corp

1973-07-31 Priority to CA177,792A priority Critical patent/CA965869A/en

1973-07-31 Priority to CA177,793A priority patent/CA965870A/en

1976-06-29 Application granted granted Critical

1976-06-29 Publication of CA992202A publication Critical patent/CA992202A/en

Status Expired legal-status Critical Current

Links

230000009977 dual effect Effects 0.000 title 1

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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- 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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Magnetic Heads (AREA)
Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

CA122,813A 1971-05-12 1971-09-14 Dual gap magnetic head assembly employing electrical interhead and intertrack shielding Expired CA992202A (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
CA177,792A CA965869A (en)	1971-05-12	1973-07-31	Dual gap magnetic head assembly employing electrical interhead and intertrack shielding
CA177,793A CA965870A (en)	1971-05-12	1973-07-31	Dual gap magnetic head assembly employing electrical interhead and intertrack shielding

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US14267371A	1971-05-12	1971-05-12

Publications (1)

Publication Number	Publication Date
CA992202A true CA992202A (en)	1976-06-29

Family

ID=22500823

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA122,813A Expired CA992202A (en)	1971-05-12	1971-09-14	Dual gap magnetic head assembly employing electrical interhead and intertrack shielding

Country Status (5)

Country	Link
US (1)	US3701859A (fr)
BE (1)	BE787012A (fr)
CA (1)	CA992202A (fr)
DE (1)	DE2146342A1 (fr)
GB (1)	GB1347729A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7779916B2 (en) *	2000-08-14	2010-08-24	Schlumberger Technology Corporation	Apparatus for subsea intervention
JP2004039090A (ja) *	2002-07-03	2004-02-05	Sony Corp	磁気ヘッド装置並びにこれを用いた磁気テープドライブ装置及び磁気ディスクドライブ装置
US8264793B2 (en)	2004-01-30	2012-09-11	International Business Machines Corporation	Tape head with facing beams each having a head chip positioned in a recess thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2928907A (en) *	1955-03-17	1960-03-15	Curtiss Wright Corp	Multiple magnetic head unit
US2927974A (en) *	1956-08-29	1960-03-08	Sperry Rand Corp	Magnetic transducer
US3150357A (en) *	1962-01-31	1964-09-22	Sperry Rand Corp	Magnetic transducer
US3414971A (en) *	1964-06-09	1968-12-10	Honeywell Inc	Method of fabricating read-after-write heads

1971
- 1971-05-12 US US142673A patent/US3701859A/en not_active Expired - Lifetime
- 1971-09-06 GB GB4139871A patent/GB1347729A/en not_active Expired
- 1971-09-14 CA CA122,813A patent/CA992202A/en not_active Expired
- 1971-09-16 DE DE19712146342 patent/DE2146342A1/de active Pending
1972
- 1972-07-31 BE BE787012A patent/BE787012A/fr unknown

Also Published As

Publication number	Publication date
GB1347729A (en)	1974-02-27
DE2146342A1 (de)	1972-11-23
BE787012A (fr)	1972-11-16
US3701859A (en)	1972-10-31

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