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DE69008254D1 - Liquid that reacts to a magnetic field. - Google Patents

Liquid that reacts to a magnetic field.

Info

Publication number
DE69008254D1
DE69008254D1 DE69008254T DE69008254T DE69008254D1 DE 69008254 D1 DE69008254 D1 DE 69008254D1 DE 69008254 T DE69008254 T DE 69008254T DE 69008254 T DE69008254 T DE 69008254T DE 69008254 D1 DE69008254 D1 DE 69008254D1
Authority
DE
Germany
Prior art keywords
reacts
liquid
magnetic field
magnetic
field
Prior art date
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 - Lifetime
Application number
DE69008254T
Other languages
German (de)
Other versions
DE69008254T2 (en
Inventor
Emil Meyer Shtarkman
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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.)
Filing date
Publication date
Application filed by TRW Inc filed Critical TRW Inc
Application granted granted Critical
Publication of DE69008254D1 publication Critical patent/DE69008254D1/en
Publication of DE69008254T2 publication Critical patent/DE69008254T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Lubricants (AREA)
DE1990608254 1989-06-27 1990-06-27 Liquid that reacts to a magnetic field. Expired - Lifetime DE69008254T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37229389A 1989-06-27 1989-06-27

Publications (2)

Publication Number Publication Date
DE69008254D1 true DE69008254D1 (en) 1994-05-26
DE69008254T2 DE69008254T2 (en) 1994-08-04

Family

ID=23467539

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990608254 Expired - Lifetime DE69008254T2 (en) 1989-06-27 1990-06-27 Liquid that reacts to a magnetic field.

Country Status (3)

Country Link
EP (1) EP0406692B1 (en)
JP (1) JPH0782925B2 (en)
DE (1) DE69008254T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131846A1 (en) * 1991-09-25 1993-04-01 Basf Ag MAGNETORHEOLOGICAL LIQUID
US5354488A (en) * 1992-10-07 1994-10-11 Trw Inc. Fluid responsive to a magnetic field
DE69329975T2 (en) * 1992-10-30 2001-07-19 Lord Corp., Cary MAGNETORHEOLOGICAL MATERIALS USING SURFACE-MODIFIED PARTICLES
CA2148000C (en) * 1992-10-30 2000-10-10 Keith D. Weiss Thixotropic magnetorheological materials
US5578238A (en) * 1992-10-30 1996-11-26 Lord Corporation Magnetorheological materials utilizing surface-modified particles
EP0672293A4 (en) * 1992-10-30 1996-04-17 Lord Corp Low viscosity magnetorheological materials.
US20040132562A1 (en) * 2002-07-24 2004-07-08 Ralf Schwenger Ball game racket
KR101030711B1 (en) 2002-08-19 2011-04-26 우베 고산 가부시키가이샤 Catalyst for polymerization or copolymerization of α-olefin used for polymerization or copolymerization of α-olefin, its catalyst component and polymerization method of α-olefin using the catalyst
US8282852B2 (en) 2009-09-16 2012-10-09 GM Global Technology Operations LLC Magnetorheological fluid and method of making the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714683A (en) * 1927-08-26 1929-05-28 Bell Telephone Labor Inc Electrical insulation
US2503947A (en) * 1947-03-10 1950-04-11 Comm Engineering Pty Ltd Method of molidng magnetic powder
US2597276A (en) * 1949-06-01 1952-05-20 Gen Aniline & Film Corp Insulation of ferromagnetic particles
US2661596A (en) * 1950-01-28 1953-12-08 Wefco Inc Field controlled hydraulic device
DE2329318A1 (en) * 1973-06-08 1975-01-02 Guenther Dipl Phys Dibus Composite magnetic particles - for crack detection in ferromagnetic workpieces
US4604229A (en) * 1985-03-20 1986-08-05 Ferrofluidics Corporation Electrically conductive ferrofluid compositions and method of preparing and using same
JP2565857B2 (en) * 1986-12-26 1996-12-18 ティーディーケイ株式会社 Magnetic fluid manufacturing method
US5167850A (en) * 1989-06-27 1992-12-01 Trw Inc. Fluid responsive to magnetic field

Also Published As

Publication number Publication date
DE69008254T2 (en) 1994-08-04
JPH0782925B2 (en) 1995-09-06
EP0406692A3 (en) 1991-01-16
JPH0370103A (en) 1991-03-26
EP0406692A2 (en) 1991-01-09
EP0406692B1 (en) 1994-04-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition