Electro-lifting magnet

Details Electro-lifting magnet Electro-lifting magnet

1978-11-24

1981-04-28

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Work or object holding type

335289, H01F 720

Patent

active

042648874

ABSTRACT:
A coil for an electromagnet is made up of a spiral wound, anodized aluminum strip, and a strip of magnetic material wound in interleaved fashion with the central portion of the aluminum strip. The magnetic material strip is electrically insulated from the aluminum strip and the aluminum strip is electrically energized to excite the magnet. The magnetic material strip is wider than the aluminum strip and extends beyond both opposite edges of the aluminum strip to make direct contact with the coil housing and a pole shoe. Electrical insulating material fills the cavity defined by the magnetic strip projecting beyond the edges of the aluminum strip.

REFERENCES:
patent: 2761094 (1956-08-01), Frampton
patent: 3521209 (1970-07-01), Fritz
patent: 3984796 (1976-10-01), Frampton

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