Copyright © Philip M. Parker, INSEAD. Terms of Use.

| Year | Description |
| 2000 | Invention patented by Howard Cheng on October 16th, 2000. Abstract: A jewelry clasp used to secure a piece of jewelry to an individual. The clasp includes a female part attached to one end of the piece of jewelry that has a latch pivotally mounted within a recess on the female part. The latch includes a hook at one end having an outer sloping surface. The clasp also includes a male part attached to the opposite end of the piece of jewelry and including a loop. The loop has a crossbar at its outer end which has an outer sloping wall. The outer wall of the crossbar and the outer surface of the hooks slope in similar directions, such that when the crossbar is pressed against the hook, the hook slides upwardly with respect to the crossbar, until the hook passes over the crossbar and drops through the center of the loop to engage the loop. The clasp also includes a sleeve slidably mounted to the male part that selectively covers the engagement of the male part and female part when the clasp is in the engaged position. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.