Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1991-04-29
1992-01-28
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335304, 335210, 335214, 315 535, H01F 702, H01F 700, H01J 2318
Patent
active
050846906
ABSTRACT:
An improved permanent magnet solenoid having a stepped transition in axial agnetic field profile and comprised of two permanent magnet solenoids, with appropriate cladding, placed in tandem and a radially magnetized ring magnet placed within the working cavity of the solenoids at the joint of entire structure.
REFERENCES:
patent: 3334264 (1967-08-01), Niclas
patent: 5055812 (1991-10-01), Abele et al.
Anderson William H.
Barrera Ramon M.
Picard Leo P.
The United States of America as represented by the Secretary of
Zelenka Michael
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