Ornament utilizing rare earth-cobalt magnet

Details Ornament utilizing rare earth-cobalt magnet Ornament utilizing rare earth-cobalt magnet

1978-02-27

1980-02-05

Shay, F. Barry

Jewelry

Having direct body attachment

Nonpiercing

A44C 700

Patent

active

041865677

ABSTRACT:
An ornament adapted to be fixed by permanent magnets has an ornament piece to which is fixed a gem or the like, and an attracting piece confronting the ornament piece. The ornament piece and/or the attracting piece is provided with a rare earth-cobalt magnet embedded therein, so that these pieces may be held by each other by means of the magnetic attracting force which acts across a non-magnetic body such as an earlobe. The level of the magnetic attracting force is so selected as to fall, when the pieces confront each other across a distance approximating the thickness of an ear lobe, within a range of between 30 grams and 100 grams per square centimeter of attaching area and, at the same time, to be larger than 30 grams per gram of weight of the ornament, so that the user may put the ornament which may be an earring, without pain nor the fear of unintentional dropping.

REFERENCES:
patent: 2803953 (1957-08-01), Zubalik
patent: 3034320 (1962-05-01), Feibelman
patent: 3071939 (1963-01-01), Feibelman

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