Abstract: A luminous electric display unit is disclosed in which glass tubing containing inert gas such as neon is entirely or substantially enclosed within a protective housing, thereby providing protection both for the glass tubing and the public.

Abstract: A luminous electric display unit having glass tubing, filled with an inert gas, fully or partially enclosed within a protective housing, thereby providing protection both for the glass tubing and the public.

Abstract: An improved tubular bulb supporting clip is disclosed. This clip allows for multiple modes of movement between the bulb supporting portion and the stationary stem of the clip. This structure allows for proper support of the tubular bulb even if the bulb has imperfections therein or the clips are not precisely positioned.

Abstract: Improved structures for housing assemblies for illuminated glass tubing are provided with this invention which comprises a housing assembly with a base section having wall portions forming an elongated channel having an open side; a central section having wall portions forming an elongated channel having an open side; and a light-transmitting cover section having wall portions forming an elongated channel having an open side; the central section secured to the cover section to form a light unit, the light unit being shorter than the base section; an elongated support plate for glass tubing, the wall portions of the central section including means adjacent the open side of the central section channel for supportably receiving the support plate in the channel; and the wall portions of the base section and the central section including means for securing the central section to the base section in snap-fit relation to close said open sides of said channels; whereby the longitudinal position of the light unit on t