Magnetic assemblies for minesweeping or ship degaussing
AssigneeThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
InventorAlfred B. Cotton
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Abstract
The invention relates to magnetic assemblies and in particular, though not exclusively to magnets for use in mine-sweeping or ship degaussing systems.
Claims16
A magnet assembly comprising a plurality of permanent magnets 1 characterised in that each permanent magnet 1 can be switched from one magnetisation saturation state to the opposite magnetisation saturation state, such that the overall magnetic moment of the assembly can be varied stepwise, by means of a solenoid 4 wound around each permanent magnet 1 such that in use it produces a field to force the permanent magnet 1 into positive or negative saturation in dependence on the direction of the solenoid current.
Dependencies are inferred from the claim text.