Bi-chambered magnetic igloo

Details Bi-chambered magnetic igloo Bi-chambered magnetic igloo

1993-07-28

1994-06-07

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335210, 335214, 315 535, 372 2, H01F 702, H01F 708, H01J 2308

Patent

active

053193407

ABSTRACT:
A magnetic field source that produces a stepped field of greater magnitude than the remanence of the magnetic material used to construct it. The source is basically a magnetic igloo comprised of two hemispheres having different cavity flux value that are separated by a passive ferromagnet slab. The hemispheres are positioned such that they share the same radial center point. The slab has a predetermined thickness and a tunnel of predetermined radius passing through its center along the radial center point of said hemispheres such that the flux in the cavity of the hemisphere abruptly changes when passing from the first hemisphere flux to the second.

REFERENCES:
patent: 4731598 (1988-03-01), Clarke
patent: 4831351 (1989-05-01), Leupold
patent: 4835137 (1989-05-01), Leupold
patent: 4835506 (1989-05-01), Leupold
patent: 4837542 (1989-06-01), Leupold
patent: 4859976 (1989-08-01), Leupold
patent: 4861752 (1989-08-01), Leupold
patent: 4887058 (1989-12-01), Leupold
patent: 5084690 (1992-01-01), Leupold
patent: 5245621 (1993-09-01), Leupold
H. A. Leupold, "Magnetic-field source for bi-chambered electron-beam devi", Journal of Applied Physics No. 67 (9), 1 May 1990.

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