Permanent magnetic holding arrangement, particularly for tempora

Details Permanent magnetic holding arrangement, particularly for tempora Permanent magnetic holding arrangement, particularly for tempora

1981-10-14

1983-08-30

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Work or object holding type

335302, H01F 720

Patent

active

044019610

ABSTRACT:
A permanent magnetic holding arrangement for temporarily holding at least two ferro-magnetic parts wherein the holding of the second part does not decrease the holding of the first part. A disc-shaped permanent magnet magnetized through its smallest thickness is positioned between two pole plates of magnetically permeable material, the thickness of the plates relative to the thickness of the magnet being such that a strong magnetic oversaturation of the plates result. Preferably, the ratio of the pole plate thickness to the permanent magnet thickness is 1:3 or larger.

REFERENCES:
patent: 3095525 (1963-06-01), Hansen
patent: 4055824 (1977-10-01), Baermann

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