Electromagnetic clutch or brake

Details Electromagnetic clutch or brake Electromagnetic clutch or brake

1976-08-24

1978-05-16

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

188164, 192 84C, H01F 708

Patent

active

040901610

ABSTRACT:
In electromagnetic clutches or brakes in which the armature closes against the pole pieces of the coil without leaving an air gap, the faces of the poles or armature, or both, are broken up into smaller areas by annular grooves to reduce the lodgement and retention of contaminating and magnetically inhibiting particles resulting from wear.

REFERENCES:
patent: 3055475 (1962-09-01), Pitts
patent: 3712439 (1973-01-01), Schacher et al.

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