Retention device for dentures and the like

Details Retention device for dentures and the like Retention device for dentures and the like

1986-12-17

1989-04-25

Wilson, John J.

Dentistry

Prosthodontics

Holding or positioning denture in mouth

A61C 13235

Patent

active

048243710

ABSTRACT:
A releasable magnetic retention device having two opposed substantially like units each of which has a relatively small permanent magnet of opposed poles, one pole of which is utilized with a conductor of low coercivity material to form a larger magnetic flux field in the conductor so that when the two like units are placed in magnetic attracting relation the two conductors complete a strong enlarged magnetic flux path between them to releasably retain the units together.

REFERENCES:
patent: 2732621 (1956-01-01), Pelzmann
patent: 3646676 (1972-03-01), Mitchell
patent: 4184252 (1980-01-01), Krol et al.
patent: 4202097 (1980-05-01), Erlich-Deguemp
patent: 4431419 (1984-02-01), Portnoy

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