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US 5,311,647 AGranted
Jewelry closure having both magnetic and mechanical clasps
OwnerDavida Levyinventor
Life of this patent
Estimating the term…
Abstract
A jewelry closure includes a magnetic closure and a mechanical closure which is a safety feature, preventing the magnetic closure from being opened inadvertently. The mechanical closure includes a wire member partially embedded in a groove in a first jewelry closure member and a groove for receiving the wire member in a second jewelry closure member. The magnetic and mechanical closures are closed substantially simultaneously.
Claims6
A jewelry closure comprising:
- a magnetic closure comprising first and second closure members for engaging together magnetically, wherein at least one of said first and second closure members comprises a magnet;
- a casing for supporting said first closure member and extending outwardly for engaging said second closure member;
- and
- a mechanical closure on said casing for engaging said second closure member when said second closure member is held by magnetic attraction to said first closure member, wherein said mechanical closure member comprises an annular groove on each member and a wire member partially embedded in a first of said grooves,
- wherein said wire member engages in a second of said grooves when said first and second members are engaged together, and said magnetic and mechanical closures must both be released in order to open the jewelry closure.
2 more elements
Dependencies are inferred from the claim text.