Magnetic tooth straightener
US4017973A · kind A · utility
16Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1976 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Jun 16, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a permanent magnet tooth straightener. Nuts are attached by bands to an anchor tooth and a mobile tooth. Screws are threaded into each nut and axially aligned. The screws are permanent magnets so that their adjacent ends form interacting magnet poles which may either attract or repell each other. As the position of the mobile tooth changes the screws may be rotated to adjust the magnetic force acting between the teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.