BE830857A - Procede et appareil permettant de reduire l'usure de la tete et de la bande magnetique d'une unite a tete magnetique rotative - Google Patents

Procede et appareil permettant de reduire l'usure de la tete et de la bande magnetique d'une unite a tete magnetique rotative

Info

Publication number: BE830857A
Authority: BE; Belgium
Prior art keywords: head; wear; reducing; unit; magnetic
Prior art date: 1974-09-30

Application number

BE157866A

Other languages

English (en)

French (fr)

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.)

1974-09-30

Filing date

1975-06-30

Publication date

1975-10-16

1975-06-30 Application filed filed Critical

1975-10-16 Publication of BE830857A publication Critical patent/BE830857A/xx

Classifications

- 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
- G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating 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
- G11B5/48—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
- G11B5/52—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 simultaneous movement of head and record carrier, e.g. rotation of head

BE157866A 1974-09-30 1975-06-30 Procede et appareil permettant de reduire l'usure de la tete et de la bande magnetique d'une unite a tete magnetique rotative BE830857A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/510,321 US3939493A (en)	1974-09-30	1974-09-30	Tape lifter

Publications (1)

Publication Number	Publication Date
BE830857A true BE830857A (fr)	1975-10-16

Family

ID=24030269

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE157866A BE830857A (fr)	1974-09-30	1975-06-30	Procede et appareil permettant de reduire l'usure de la tete et de la bande magnetique d'une unite a tete magnetique rotative

Country Status (18)

Country	Link
US (1)	US3939493A (it)
JP (1)	JPS5539055B2 (it)
AT (1)	AT346086B (it)
AU (1)	AU498633B2 (it)
BE (1)	BE830857A (it)
BR (1)	BR7506293A (it)
CA (1)	CA1061459A (it)
CH (1)	CH582399A5 (it)
DK (1)	DK143307C (it)
ES (1)	ES441053A1 (it)
FI (1)	FI62192C (it)
FR (1)	FR2286460A1 (it)
GB (1)	GB1483705A (it)
IT (1)	IT1041935B (it)
NL (1)	NL7511051A (it)
NO (1)	NO148010C (it)
SE (1)	SE408496B (it)
SU (1)	SU651732A3 (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4015291A (en) *	1975-09-03	1977-03-29	International Business Machines Corporation	Flying head helical scan magnetic recording device employing a lobed rotor
US4414588A (en) *	1980-04-11	1983-11-08	Ampex Corporation	Fluid bearing tape scanning drum
EP0123694B1 (en) *	1982-07-06	1990-09-26	Matsushita Electric Industrial Co., Ltd.	Rotary head assembly
US4686597A (en) *	1985-09-27	1987-08-11	Rca Corporation	Rotating head apparatus including a flying tape edge guide
JPH076455A (ja) *	1992-08-03	1995-01-10	Hitachi Ltd	記録再生装置
US9058836B2 (en) *	2009-01-29	2015-06-16	Hewlett-Packard Development Company, L.P.	Data transfer apparatus
US10395681B1 (en)	2018-09-25	2019-08-27	International Business Machines Corporation	Adjustable magnetic tape drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1144324B (de) *	1961-09-08	1963-02-28	Telefunken Patent	Vorrichtung zur magnetischen Aufzeichnung von Fernsehbild- und -tonsignalen
US3435442A (en) *	1965-03-26	1969-03-25	Ampex	Fluid lubricated magnetic tape transducer
US3504136A (en) *	1966-03-21	1970-03-31	Fowler Allan R	Drum type video tape recorder with a tape wrap of more than 360
US3855524A (en) *	1972-09-05	1974-12-17	Industrial Nucleonics Corp	Measuring gauge with air bearing and resistant to tilt
US3840894A (en) *	1973-04-02	1974-10-08	Ibm	Wide rotor for stable support of tape along path of transducer carried by rotor

1974
- 1974-09-30 US US05/510,321 patent/US3939493A/en not_active Expired - Lifetime
1975
- 1975-05-23 GB GB22876/75A patent/GB1483705A/en not_active Expired
- 1975-06-12 FR FR7519006A patent/FR2286460A1/fr active Granted
- 1975-06-30 BE BE157866A patent/BE830857A/xx not_active IP Right Cessation
- 1975-07-21 CH CH948375A patent/CH582399A5/xx not_active IP Right Cessation
- 1975-08-11 AU AU83839/75A patent/AU498633B2/en not_active Expired
- 1975-08-14 CA CA233,463A patent/CA1061459A/en not_active Expired
- 1975-08-27 IT IT26593/75A patent/IT1041935B/it active
- 1975-08-27 JP JP10311575A patent/JPS5539055B2/ja not_active Expired
- 1975-09-03 SE SE7509766A patent/SE408496B/xx unknown
- 1975-09-10 AT AT698775A patent/AT346086B/de not_active IP Right Cessation
- 1975-09-18 ES ES441053A patent/ES441053A1/es not_active Expired
- 1975-09-19 NL NL7511051A patent/NL7511051A/xx not_active Application Discontinuation
- 1975-09-23 NO NO753235A patent/NO148010C/no unknown
- 1975-09-29 SU SU752176214A patent/SU651732A3/ru active
- 1975-09-29 BR BR7506293*A patent/BR7506293A/pt unknown
- 1975-09-29 FI FI752718A patent/FI62192C/fi not_active IP Right Cessation
- 1975-09-29 DK DK438775A patent/DK143307C/da not_active IP Right Cessation

Also Published As

Publication number	Publication date
IT1041935B (it)	1980-01-10
US3939493A (en)	1976-02-17
ATA698775A (de)	1978-02-15
NO148010B (no)	1983-04-11
JPS5539055B2 (it)	1980-10-08
SU651732A3 (ru)	1979-03-05
DK438775A (da)	1976-03-31
AU498633B2 (en)	1979-03-22
SE408496B (sv)	1979-06-11
CH582399A5 (it)	1976-11-30
JPS5151916A (it)	1976-05-07
FR2286460A1 (fr)	1976-04-23
BR7506293A (pt)	1976-08-03
FI62192C (fi)	1982-11-10
AT346086B (de)	1978-10-25
AU8383975A (en)	1977-02-17
DK143307B (da)	1981-08-03
GB1483705A (en)	1977-08-24
CA1061459A (en)	1979-08-28
SE7509766L (sv)	1976-03-31
NL7511051A (nl)	1976-04-01
FI62192B (fi)	1982-07-30
NO753235L (it)	1976-03-31
ES441053A1 (es)	1977-03-16
FI752718A (it)	1976-03-31
DK143307C (da)	1981-11-30
DE2539942A1 (de)	1976-08-26
FR2286460B1 (it)	1980-05-30
DE2539942B2 (de)	1976-12-30
NO148010C (no)	1983-07-20

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Legal Events

Date	Code	Title	Description
1986-12-31	RE	Patent lapsed	Owner name: INTERNATIONAL BUSINESS MACHINES CORP. Effective date: 19860630

Date

Code

Title

Description

1986-12-31

Patent lapsed

Owner name: INTERNATIONAL BUSINESS MACHINES CORP.

Effective date: 19860630