Patent · US Expired

Lightweight magnetic particle device

US6837350B2 · kind B2 · utility

2Cited by
51References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 27, 2003
Grant dateJan 4, 2005
Priority date
Expiry dateMar 27, 2023

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2037/002
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A multiple working surface magnetic particle device for transferring torque between two rotatable members is disclosed. The magnetic particle device includes relatively rotatable members defining a gap therebetween containing a magnetically reactive medium. The magnetically reactive medium stiffens in the presence of a magnetic field interlocking the rotatable members. The multiple working surface design allows for a reduction in the size and weight of the magnetic field source resulting in a more compact, lighter weight magnetic particle device.

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