Magnetic jewelry clasp
US5099659A · kind A · utility
37Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1989 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Sep 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/32
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A magnetic clasp having first and second magnetized portions, each with a hole disposed in the center thereof. The two portions are magnetically attractive to each other but are divided with a gap at their interface to permit easy separation thereof. A third magnetic portion is sized to fit within the hole in the first and second rings. The magnetic prevents lateral movement of the two portions at their interface. The male portion has attached to its opposite ends a chain, each end of the chain being further attached to a stop sized larger than the hole in the rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.