Axial magnetic actuator

Details Axial magnetic actuator Axial magnetic actuator

1989-04-10

1990-02-27

Gellner, Michael L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

350255, 361147, G03B 310, G02B 702, H01H 4704

Patent

active

049050311

ABSTRACT:
An axial magnet actuator is disclosed in which a member formed of a magnetic material is movable relative to a frame along an axis. Electromagnets are positioned along the axis at spaced locations. In order to keep the mass of the movable member as small as possible, no magnetic elements are located on the member. An annular permanent magnet is located along the axis between the electromagnets and functions with the electromagnets to move the member, keep the member suspended in an axial direction, and hold the member in a selected position when the electromagnets are not energized.

REFERENCES:
patent: 3634735 (1972-01-01), Komatsu
patent: 4720185 (1988-01-01), Kurihara

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