DE3866997D1 - Linear positionierer mit schwingspule. - Google Patents

Linear positionierer mit schwingspule.

Info

Publication number: DE3866997D1
Authority: DE; Germany
Prior art keywords: voice coil; linear positioner; positioner; linear; voice
Prior art date: 1987-03-02
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 - Fee Related

Application number

DE8888902701T

Other languages

English (en)

Inventor

Ivan Morris

B Kroetz

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

Unisys 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.)

1987-03-02

Filing date

1988-03-02

Publication date

1992-01-30

1987-03-02 Priority claimed from US07/020,933 external-priority patent/US4827162A/en

1987-03-02 Priority claimed from US07/021,034 external-priority patent/US4825984A/en

1988-03-02 Application filed by Unisys Corp filed Critical Unisys Corp

1992-01-30 Application granted granted Critical

1992-01-30 Publication of DE3866997D1 publication Critical patent/DE3866997D1/de

2008-03-03 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

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
- 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

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)
Vibration Prevention Devices (AREA)

DE8888902701T 1987-03-02 1988-03-02 Linear positionierer mit schwingspule. Expired - Fee Related DE3866997D1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US07/020,933 US4827162A (en)	1987-03-02	1987-03-02	Controlled drag for magnet actuator
US07/021,034 US4825984A (en)	1987-03-02	1987-03-02	Visco-elastic couple for magnet actuator
PCT/US1988/000562 WO1988006784A1 (en)	1987-03-02	1988-03-02	Controlled drag for magnet actuator

Publications (1)

Publication Number	Publication Date
DE3866997D1 true DE3866997D1 (de)	1992-01-30

Family

ID=26694063

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8888902701T Expired - Fee Related DE3866997D1 (de)	1987-03-02	1988-03-02	Linear positionierer mit schwingspule.

Country Status (6)

Country	Link
EP (1)	EP0305474B1 (de)
JP (1)	JPH01500399A (de)
KR (1)	KR910009023B1 (de)
CA (1)	CA1323420C (de)
DE (1)	DE3866997D1 (de)
WO (1)	WO1988006784A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SG90136A1 (en) *	1999-05-12	2002-07-23	Seagate Technology Llc	Viscoelastic voice coil damper for disc drives
KR20170037956A (ko) *	2014-07-30	2017-04-05	니혼 덴산 산쿄 가부시키가이샤	리니어 액추에이터

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3521092A (en) *	1968-07-10	1970-07-21	Ibm	Data storage extended stroke actuator
US4144466A (en) *	1977-09-30	1979-03-13	International Business Machines Corporation	Damping vibrations in voice coil actuator
US4602175A (en) *	1983-02-28	1986-07-22	International Business Machines Corporation	Damped coil construction for VCM

1988
- 1988-03-01 CA CA000560232A patent/CA1323420C/en not_active Expired - Fee Related
- 1988-03-02 JP JP63502653A patent/JPH01500399A/ja active Pending
- 1988-03-02 EP EP88902701A patent/EP0305474B1/de not_active Expired - Lifetime
- 1988-03-02 WO PCT/US1988/000562 patent/WO1988006784A1/en active IP Right Grant
- 1988-03-02 DE DE8888902701T patent/DE3866997D1/de not_active Expired - Fee Related
- 1988-11-02 KR KR8871393A patent/KR910009023B1/ko not_active IP Right Cessation

Also Published As

Publication number	Publication date
KR910009023B1 (en)	1991-10-28
EP0305474B1 (de)	1991-12-18
EP0305474A1 (de)	1989-03-08
JPH01500399A (ja)	1989-02-09
CA1323420C (en)	1993-10-19
KR890700891A (ko)	1989-04-28
WO1988006784A1 (en)	1988-09-07

Legal Events

Date	Code	Title	Description
1993-01-21	8364	No opposition during term of opposition
1997-03-13	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE3854177D1 (de)	1995-08-24	Planarspule.
DE3880202D1 (de)	1993-05-19	Magnetische vorrichtungen.
DE68909429D1 (de)	1993-11-04	Linearmotor mit beweglicher spule.
DE3582713D1 (de)	1991-06-06	Flexible induktionsspule.
DE3584911D1 (de)	1992-01-30	Lautsprecher mit mehreren antrieben.
FI863321A0 (fi)	1986-08-15	Magnetisk resonansavbildningsanordning omfattande en hoegfrekvensburspole.
DE68923040D1 (de)	1995-07-20	Magnetventil.
DE3879305D1 (de)	1993-04-22	Magnetkopf.
DE68917535D1 (de)	1994-09-22	Magnetbandkassetten - Identifizierung.
DE3882832D1 (de)	1993-09-09	Weicheisenmagnet-duennfilme.
DE3750863D1 (de)	1995-01-26	Magnetischer Mehrschichtenaufbau.
DE3875712D1 (de)	1992-12-10	Magnetventil.
DE69007377D1 (de)	1994-04-21	Faseroptische spule mit nachgiebiger unterlage.
DE3762263D1 (de)	1990-05-17	Elektropneumatischer stellungsregler.
DE3668671D1 (de)	1990-03-08	Magnetisches stellglied.
DE3582949D1 (de)	1991-07-04	Magnetkopf-positioniergeraet.
DE3776123D1 (de)	1992-02-27	Hochpraezisionspositionsgeber.
DE69201249D1 (de)	1995-03-09	Magnetantrieb.
DE3886569D1 (de)	1994-02-10	Magnetkopf.
DE3882578D1 (de)	1993-09-02	Magnetventil.
DE69013227D1 (de)	1994-11-17	Magnetkern.
DE3762992D1 (de)	1990-07-05	Magnetventil.
DE3888287D1 (de)	1994-04-14	Film-Magnetkopf.
DE3675624D1 (de)	1990-12-20	Magnetspule.
DE3879799D1 (de)	1993-05-06	Magnetkopf.