Magnetic structure having a mirror

Details Magnetic structure having a mirror Magnetic structure having a mirror

1992-09-01

1994-01-11

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335301, 335304, H01F 702

Patent

active

052785343

ABSTRACT:
A magnetic structure defining a cavity includes a first member of high-permeability material having a flat surface defining a first wall of the cavity, and a member of permanent magnetic material spaced from the flat surface and producing a uniform magnetic field in the cavity. The permanent magnetic material member may have two or more layers, with the layers outward of the cavity being of a material having a remanence that is no greater than the adjacent inner layers.

REFERENCES:
patent: 2832932 (1958-04-01), Baermann
patent: 3227931 (1966-01-01), Adler
patent: 3768054 (1973-10-01), Neugebauer
patent: 4456898 (1984-06-01), Frischmann
patent: 4835506 (1989-05-01), Leupold
patent: 4859976 (1989-08-01), Leupold
patent: 4861752 (1989-08-01), Leupold

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