SE430441B - Elektromagnetiskt magnethuvudinstellningsarrangemang innefattande ett flertal av varandra oberoende cirkulera flodesgap med gemensam permanentmagnet - Google Patents

Elektromagnetiskt magnethuvudinstellningsarrangemang innefattande ett flertal av varandra oberoende cirkulera flodesgap med gemensam permanentmagnet

Info

Publication number: SE430441B
Authority: SE; Sweden
Prior art keywords: pole; coil; permanent magnet; pole cores; gaps
Prior art date: 1977-11-07

Application number

SE7811379A

Other languages

English (en)

Swedish (sv)

Other versions

SE7811379L (sv

Inventor

T R Patel

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.)

1977-11-07

Filing date

1978-11-02

Publication date

1983-11-14

1978-11-02 Application filed by Ibm filed Critical Ibm

1979-05-08 Publication of SE7811379L publication Critical patent/SE7811379L/xx

1983-11-14 Publication of SE430441B publication Critical patent/SE430441B/sv

Links

230000000694 effects Effects 0.000 claims description 7
230000005415 magnetization Effects 0.000 claims description 7
230000004323 axial length Effects 0.000 claims description 3
230000015654 memory Effects 0.000 description 7
230000005484 gravity Effects 0.000 description 4
238000010276 construction Methods 0.000 description 3
230000004907 flux Effects 0.000 description 3
230000002411 adverse Effects 0.000 description 2
230000008901 benefit Effects 0.000 description 2
241001063191 Elops affinis Species 0.000 description 1
235000002756 Erythrina berteroana Nutrition 0.000 description 1
HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 description 1
230000006870 function Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
238000012856 packing Methods 0.000 description 1
238000009527 percussion Methods 0.000 description 1
108090000623 proteins and genes Proteins 0.000 description 1
230000004044 response Effects 0.000 description 1
238000007493 shaping process Methods 0.000 description 1
230000007704 transition Effects 0.000 description 1

Classifications

- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
- 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
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Electromagnetism (AREA)
Power Engineering (AREA)
Reciprocating, Oscillating Or Vibrating Motors (AREA)
Moving Of Heads (AREA)

SE7811379A 1977-11-07 1978-11-02 Elektromagnetiskt magnethuvudinstellningsarrangemang innefattande ett flertal av varandra oberoende cirkulera flodesgap med gemensam permanentmagnet SE430441B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/849,134 US4136293A (en)	1977-11-07	1977-11-07	Multi-actuator system using single magnetic circuit

Publications (2)

Publication Number	Publication Date
SE7811379L SE7811379L (sv)	1979-05-08
SE430441B true SE430441B (sv)	1983-11-14

Family

ID=25305150

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7811379A SE430441B (sv)	1977-11-07	1978-11-02	Elektromagnetiskt magnethuvudinstellningsarrangemang innefattande ett flertal av varandra oberoende cirkulera flodesgap med gemensam permanentmagnet

Country Status (11)

Country	Link
US (1)	US4136293A (de)
JP (1)	JPS5835030B2 (de)
AU (1)	AU517409B2 (de)
BR (1)	BR7807247A (de)
CA (1)	CA1068320A (de)
DE (1)	DE2847393C3 (de)
FR (1)	FR2408239A1 (de)
GB (1)	GB2007921B (de)
IT (1)	IT1160024B (de)
NL (1)	NL7810906A (de)
SE (1)	SE430441B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4359761A (en) *	1978-07-27	1982-11-16	Papst Motoren Kg	Electric motor with multiple shafts
US4285018A (en) *	1979-01-25	1981-08-18	International Business Machines Corporation	Disk file
US4227100A (en) *	1979-02-26	1980-10-07	The Foxboro Company	Dual output force motor
US4612592A (en) *	1979-12-26	1986-09-16	Burroughs Corporation	Dual coil/dual magnet actuator
US4692999A (en) *	1979-12-26	1987-09-15	Unisys Corp.	Method of making a multi-coil/multi-magnet actuator
JPS57211963A (en) *	1981-06-24	1982-12-25	Nippon Telegr & Teleph Corp <Ntt>	Parallel linear actuator
JPS5823362A (ja) *	1981-07-30	1983-02-12	Nippon Telegr & Teleph Corp <Ntt>	揺動アクチユエ−タ
US4407578A (en) *	1982-05-03	1983-10-04	Polaroid Corporation	Efficient electromagnetic actuator usable as photographic shutter
US4631432A (en) *	1982-06-21	1986-12-23	Image Communications, Inc.	Linear motor facsimile machine
GB2129186A (en) *	1982-10-29	1984-05-10	Atasi Corp	Disk drive actuator structure
US4616277A (en) *	1984-06-15	1986-10-07	Memorex Corporation	Disk drive storage system having means for compensating for seek driving forces coupled between head actuators
JPS62175972A (ja) *	1986-01-29	1987-08-01	Hitachi Ltd	リニアアクチユエ−タ組立体
JPH071617B2 (ja) *	1986-06-30	1995-01-11	株式会社東芝	磁気ディスク装置及び磁気ディスク装置の磁気ヘッド制御方法
US5025183A (en) *	1989-05-17	1991-06-18	The United States Of America As Represented By The Secretary Of The Air Force	Electromagnetic actuator driver apparatus with pivot axis
CN101860171A (zh) *	2010-04-20	2010-10-13	沈阳工业大学	一种永磁直线发电机
US11320906B2 (en)	2019-12-13	2022-05-03	Facebook Technologies, Llc	Systems and methods for delivering a plurality of haptic effects

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1119992B (de) *	1956-03-29	1961-12-21	Siemens Elektrogeraete Gmbh	Elektrodynamischer Schwingankerantrieb
US3439198A (en) *	1965-12-27	1969-04-15	Robert H Lee	Electrical actuator having a mechanical output
US3487241A (en) *	1967-11-07	1969-12-30	Thomas A Carter	Linear motor-generator
JPS4811888B1 (de) *	1968-07-18	1973-04-17
US3746937A (en) *	1971-07-12	1973-07-17	H Koike	Electromagnetic linear motion device
US3766334A (en) *	1971-11-15	1973-10-16	A Burke	Double voice coil loudspeaker
US3816777A (en) *	1972-12-27	1974-06-11	K Metzgar	Electrodynamic force generator
DE2314725B2 (de) *	1973-03-24	1975-02-27	Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig, 8510 Fuerth	Lautsprecherkombination
US3889139A (en) *	1974-02-14	1975-06-10	Xerox Corp	Linear motor actuator
US3896319A (en) *	1974-04-17	1975-07-22	Control Data Corp	Linear motor
US3924146A (en) *	1975-01-27	1975-12-02	California Computer Products	Multiple linear motor positioning system
US4034411A (en) *	1975-07-11	1977-07-05	International Business Machines Corporation	Magnetic disk information storage apparatus
US4075517A (en) *	1976-04-02	1978-02-21	Sperry Rand Corporation	Linear actuator

1977
- 1977-11-07 US US05/849,134 patent/US4136293A/en not_active Expired - Lifetime
1978
- 1978-07-13 CA CA307,342A patent/CA1068320A/en not_active Expired
- 1978-07-24 AU AU38289/78A patent/AU517409B2/en not_active Expired
- 1978-09-22 JP JP53116073A patent/JPS5835030B2/ja not_active Expired
- 1978-10-02 FR FR7828929A patent/FR2408239A1/fr active Granted
- 1978-10-19 GB GB7841203A patent/GB2007921B/en not_active Expired
- 1978-10-31 IT IT29276/78A patent/IT1160024B/it active
- 1978-11-01 BR BR7807247A patent/BR7807247A/pt unknown
- 1978-11-02 DE DE2847393A patent/DE2847393C3/de not_active Expired
- 1978-11-02 NL NL7810906A patent/NL7810906A/xx not_active Application Discontinuation
- 1978-11-02 SE SE7811379A patent/SE430441B/sv not_active IP Right Cessation

Also Published As

Publication number	Publication date
AU3828978A (en)	1980-01-31
GB2007921B (en)	1982-02-24
US4136293A (en)	1979-01-23
CA1068320A (en)	1979-12-18
FR2408239A1 (fr)	1979-06-01
BR7807247A (pt)	1979-05-15
JPS5835030B2 (ja)	1983-07-30
FR2408239B1 (de)	1982-05-14
IT1160024B (it)	1987-03-04
DE2847393B2 (de)	1980-08-07
DE2847393C3 (de)	1981-03-26
GB2007921A (en)	1979-05-23
NL7810906A (nl)	1979-05-09
DE2847393A1 (de)	1979-05-10
JPS5466413A (en)	1979-05-29
SE7811379L (sv)	1979-05-08
AU517409B2 (en)	1981-07-30
IT7829276A0 (it)	1978-10-31

Legal Events

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 7811379-2

Effective date: 19910611

Format of ref document f/p: F

Publication	Publication Date	Title
SE430441B (sv)	1983-11-14	Elektromagnetiskt magnethuvudinstellningsarrangemang innefattande ett flertal av varandra oberoende cirkulera flodesgap med gemensam permanentmagnet
PL108574B1 (en)	1980-04-30	Magnetic chuck with permanent and electro-permanent magnets
EP0031876B1 (de)	1984-03-14	Elektrischer Betätigungsapparat mit begrenzter Rotationsmöglichkeit
US6344936B1 (en)	2002-02-05	Objective lens driving apparatus
ES463915A1 (es)	1978-07-01	Una disposicion perfeccionada de brazo portador, controlableelectricamente, para un aparato por medio del cual se puede registrar yno leer informacion.
US4669013A (en)	1987-05-26	Multiple coils for reduction of stray magnetic fields in disk file actuators
US4462054A (en)	1984-07-24	Disc drive electromagnetic actuator with enhanced flux density
NL8102523A (nl)	1982-12-16	Zwenkarminrichting voor magneetschijfgeheugeninrichting.
EP0228055B1 (de)	1992-03-04	Antriebsvorrichtung für ein Objektiv
KR960035527A (ko)	1996-10-24	일체형 데이타 기억 디스크 및 디스크 드라이브 조립체
US3668443A (en)	1972-06-06	Magnetic incrementing detent
JPH08273176A (ja)	1996-10-18	光ヘッドの対物レンズアクチュエータ
GB1095242A (en)	1967-12-13	Magnetic holding device
JPS5831662B2 (ja)	1983-07-07	ヘツド位置決め装置
JPS6122390B2 (de)	1986-05-31
US4558244A (en)	1985-12-10	Micro stepping motor
GB1394904A (en)	1975-05-21	Magnetic means for directing and conducting magnetic flux
US3383474A (en)	1968-05-14	Electromagnetic pickup with exchangeable stylus assembly for phonograph records
GB1299057A (en)	1972-12-06	Improvements in electrical machines
US4233476A (en)	1980-11-11	Moving coil type cartridge
US2907007A (en)	1959-09-29	Magnetic recording equipment
US20210359559A1 (en)	2021-11-18	Electric motor
JP2700005B2 (ja)	1998-01-19	対物レンズ駆動装置
US3317916A (en)	1967-05-02	D'arsonval motor
SU1068872A1 (ru)	1984-01-23	Устройство дл прецизионного отклонени оптического луча