US Patent 11950665 Pendant with locking mechanism and interchangeable insert receiving portion

A pendant includes a face plate and back plate for defining an internal chamber. When key portions on the face plate are positioned over key entrances of the back plate, and the face plate rotated with respect to the back plate so that the key portions rest on a top surface of the second portion of the grooves in the back plate, the pendant enters a primary locked position. When the latch of the face plate is positioned between two protruding portions of the back plate and resting on a seat location, the pendant enters a secondary locked position.