Connection of tray to dental articulator

Claim 1

An improved connection of tray to dental articulator having a lower jaw and an upper jaw pivotally mounted to the lower jaw which comprises: (a) a lower member having a female receiving aperture, said lower member carried by the lower jaw; (b) an upper member having a female receiving aperture, said upper member carried by the upper jaw, wherein the female receiving apertures in said lower and said upper members being of the same size, rectangular formed and tapered inwardly from an edge thereof; and (c) a dental model tray for each said member being formed with a male hold-release portion being sized to releasably mount within either of the female receiving apertures, wherein the male hold-release portion being formed as a rectangular tapered projection extending outwardly from a back portion of said dental model tray thereof and having a semi-flexible central tab extending outwardly form said rectangular projection whereby said tab will flex a little and will automatically lock with said member, said male hold-release portion being fully inserted into the female receiving aperture, and whereby said tab will flex in an opposite direction when finger pressure is applied thereby releasing said tab and said male hold-release portion from the female receiving aperture.