Patent · US Expired

Electrically controlled, progressive, frictional, torque transmitting device

US4664236A · kind A · utility

16Cited by
3References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 11, 1985
Grant dateMay 12, 1987
Priority date
Expiry dateSep 11, 2005

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2037/005
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An electrically controlled, progressive, frictional, torque transmitting device comprises a rotary element 1, 2, a proportion of the rotary power available from the rotary element 1, 2, being used, under the control of a direct electrical signal, to determine the degree of engagement of a frictional device 3, and hence the torque transmitted or absorbed by the torque transmitting device, thereby avoiding the requirement for an additional power source to activate the frictional device whole.

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