Patent · US Expired

Magnetorheological fluid

US5985168A · kind A · utility

39Cited by
12References
43Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 30, 1998
Grant dateNov 16, 1999
Priority date
Expiry dateApr 30, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S977/838
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A magnetorheological (MR) fluid including magnetically soft particles suspended in a carrier solvent is disclosed. The MR fluid also includes additive particles of smaller size than the magnetically soft particles and a bridging polymer. The additive particles and polymer form a gel-like material which provides a blanket or coating around the magnetically soft particles. The MR fluids possess improved stability and redispersibility, as well as favorable mechanical properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.