Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1987-10-26
1988-08-16
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335212, H01F 702
Patent
active
047647434
ABSTRACT:
Permanent magnet structures in several alternative forms are fabricated f multiplicities of permanent magnet segments of magnetic materials, preferably rare earth compounds, with the segments displaced radially from each other progressively along the structures elongate axes so as to produce a heliform magnetic field extending centrally in a passage through the structure.
REFERENCES:
patent: 3067365 (1962-12-01), Sailor et al.
patent: 3643311 (1972-02-01), Knetchtel et al.
Leupold Herbert A.
Potenziani, II Ernest
Harris George
Kanars Sheldon
Ryan Maurice W.
The United States of America as represented by the Secretary of
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