Permanent magnet device

Details Permanent magnet device Permanent magnet device

1987-10-02

1989-03-28

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335304, 324318, H01F 702

Patent

active

048167967

ABSTRACT:
In a permanent magnet device, a pair of pole pieces of a ferromagnetic material are disposed opposite to each other, and, in order to generate a homogeneous magnetic field in a gap space between the pole pieces, a pair of members of a permanent magnet material magnetized in a direction substantially orthogonal to the direction of the magnetic field and also magnetized in directions opposite to each other in themselves are disposed adjacent to the pole pieces and symmetrical with each other respectively.

REFERENCES:
patent: 3706057 (1987-11-01), Schwab
patent: 3768054 (1973-10-01), Neugebauer
patent: 4578663 (1986-03-01), Sanders et al.

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