Clasp for jewelry
US7966704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2008 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Apr 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/4501
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clasp which is lockable in both an open and a closed position includes a body having a first opening, a second opening, and an internal space; a connector fixed to the body for linking to a chain; a first spring; and a moveable connector. The movable connector, inseparable from the body, is movable to a locked closed position by the first spring and movable to a locked open position by an external force. The movable connector includes a first latch piece within the internal space of the body, and extends through the first opening. A button extends through the second opening. The button includes a second spring and a second latch piece that interfaces with the first latch piece. In a first position of the button, the second latch piece locks with the first latch piece. In a second position of the button, the second latch piece and the first latch piece disengage and the movable connector can be moved by an external force allowing the second spring to move the second latch piece to a position that keeps the movable connector in the locked open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.