Magnetic anchoring apparatus with quadrangular pole arrangement

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type

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335295, H01F 720

Patent

active

045076359

ABSTRACT:
A magnetic anchoring apparatus, comprising in combination: an external ferromagnetic crown provided with a base plate and lateral walls; at least one group of four pole pieces defining pairs of corresponding poles of an anchoring surface, said pole pieces presenting their longitudinal axes at right angles to the base plate and in correspondence with the apexes of a square. The apparatus comprising moreover a plurality of permanent magnets for feeding the aforesaid poles, interposed between the pole pieces and, respectively, between the latter and said ferromagnetic crown.

REFERENCES:
patent: 3316514 (1967-04-01), Radus et al.
patent: 4075589 (1978-02-01), Braillon
patent: 4090162 (1978-05-01), Cardone et al.
patent: 4250478 (1981-02-01), Cardone et al.

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