Patent · US Expired

Neutral-type electromagnetic clutch-brake unit

US3978948A · kind A · utility

6Cited by
6References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 28, 1975
Grant dateSep 7, 1976
Priority date
Expiry dateApr 28, 1995

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D67/06
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The unit includes an electromagnet which may be energized to effect shifting of an armature from a clutching position in which the armature couples driving and driven elements to a braking position in which the armature engages a braking member to produce braking of the driven element. The braking member normally is locked against rotation so as to apply a braking torque to the armature and the driven element but may be selectively unlocked and permitted to rotate so as to enable the armature and the driven element to free-wheel.

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