Abstract: A light bulb mounting arrangement has at least one continuous grooved indentation about the base portion and an adapter to fit the device to present day threaded sockets. The bulb is retained in a substantially tubular socket which is in a close fitting or telescopic relation with the base. The retaining mechanism has at least two spring-loaded fingers having nodes thereon with cross-sectional profiles similar to and matable with those of the grooved indentions. Optionally, the adapter upon installation is captive within the existing conventional socket.

Abstract: An electric light bulb and socket system is described. The system includes a bulb with a base having a substantially cylindrical wall and a single groove extending thereinto and thereabout and also includes a socket base with an open cavity therein and retaining springs for retaining the bulb. The retaining springs are mounted within the wall of the socket base, except for the lugs of the retaining springs which extend into the socket base cavity. The lugs of the retaining springs are dimensioned to, upon the insertion of the bulb into the receptacle, protrude into the groove and to seat therewithin. As the lugs are equally spaced about the groove, the lugs exert a balanced spring pressure on the bulb to retain the bulb in the socket. With this system, the insertion of the bulb into the socket is by axial movement without orientation and without rotation thereof.