U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and device for bringing bodies immersed in liquid to form regular structural patterns

Patent 4846988 Issued on July 11, 1989. Estimated Expiration Date: Icon_subject December 10, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Stable emulsion and method for preparation thereof
Patent #: 3981844
Issued on: 09/21/1976
Inventor: Romankiw

Method for dispersing metallic particles in a dielectric binder
Patent #: 4006479
Issued on: 02/01/1977
Inventor: LaCombe

Imaging composition
Patent #: 4100088
Issued on: 07/11/1978
Inventor: Haas ,   et al.

Transporting iron ore slurries
Patent #: 4114956
Issued on: 09/19/1978
Inventor: Jennings, Jr.

Process for producing flexible magnets
Patent #: 4278556
Issued on: 07/14/1981
Inventor: Tada

Ferrofluid Patent #: 4381244
Issued on: 04/26/1983
Inventor: Berkowitz ,   et al.

Inventor

Application

No. 07/132668 filed on 12/10/1987

US Classes:

252/62.52, Flaw detection or magnetic clutch252/62.53, With wax, bitumen, resin, or gum252/62.54Synthetic resin

Examiners

Primary: Sneed, Helen M. S.
Assistant: Pak, Chung K.

Attorney, Agent or Firm

International Classes

G09B 23/26 (20060101)
G09B 23/00 (20060101)

Foreign Application Priority Data

1983-11-11 NO

Abstract

Method and device for bringing bodies immersed in liquid to form regular structural patterns which may influence electromagnetic and acoustic waves, simulate states and processes in atomic or molecular structures and the like. This is achieved by means of a great number of non-magnetic, essentially monodisperse particles dispersed in a magnetic liquid, which is subjected to an essentially homogeneous magnetic field. Each of the dispersed non-magnetic particle bodies then assumes a magnetic moment corresponding to the volume of liquid displaced by the body, but inversely directed. Magnetic interaction forces would then prevail between the particle bodies, which thus may be collectively controlled by the external magnetic field to assume various suitable structural patterns.

Other References

  • Kaiser et al., "Some Application of Ferrofluid Magnetic Colloids", IEEE Transactions on Magnetics, vol. Mag-6, No. 3, pp. 694-698, Sep. 1970
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