Electromagnetic coupling disc

Details Electromagnetic coupling disc Electromagnetic coupling disc

1988-10-24

1990-01-02

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

192 84C, H01F 700

Patent

active

048916196

ABSTRACT:
A method of forming slots in the coupling disc (e.g., the armature or rotor) of an electromagnetic coupling such as a clutch or brake. The method is carried out by effecting relative movement between the coupling disc and a laser beam in such a manner as to cause the beam to trace the perimeter of the slot to be formed and to cut a slug of material from the disc. Also disclosed are coupling discs in which opposing side walls of the slots converge toward one another and in which the side walls are concentric but obliquely inclined.

REFERENCES:
patent: 3088567 (1963-05-01), Fischer et al.
patent: 3149705 (1964-09-01), Shoquist
patent: 4187939 (1980-02-01), Silvestrini et al.
patent: 4317023 (1982-02-01), Gryskiewicz
patent: 4413717 (1983-11-01), Kanamaru et al.
patent: 4625093 (1986-11-01), Chryssolouris
patent: 4635774 (1987-01-01), Sekiguchi et al.
patent: 4685202 (1987-08-01), Booth et al.

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