Gem ring with interchangeable settings

Abstract

A ring having a means for inserting a replaceable insert unit or cartridge containing a gem stone or any other type of setting such that the insert unit is securely held in place in a mounting but can be readily replaced by a similar unit containing another setting. The mounting is adapted to hold a sleeve with a hinged door that fits across the inside opening. A setting is positioned in a crown and the setting and crown are soldered within a casing having projecting edges that fit snugly within and project through a sleeve that is soldered inside the mounting. The gem stone or other setting, the crown (if used) and the casing comprise a replaceable cartridge. The projecting edges of the casing serve as a setting guard. The hinged door, which locks to hold the assembly together, has a hole therethrough through which the pavilion of a setting may protrude if required.

Dependencies are inferred from the claim text.