US Patent 7758367 Hollow ring seating indicator

A seating indicator for loadbreak connectors and deadbreak connectors that includes a substantially round, elastic O-ring having a body and an opening, wherein the O-ring is installed on the transition shoulder portion of a loadbreak bushing insert, and wherein the O-ring extends radially and outwardly from the bushing insert when an elbow connector is properly installed thereon. The O-ring can be hollow so that it will more easily deform and can be made from an elastomeric material in easily viewable colors.