SU8747A1 - Electric incandescent lamp - Google Patents

Description

The present invention relates to an incandescent lamp already known with a luminous element enclosed in a small cone or tube, which, in turn, is placed in an outer flask, and is intended to facilitate the replacement of a burnt incandescent filament with a new one by using an outer flask fitted in the upper part, filled with air at atmospheric pressure, and an inner cone, sealed and attached to the flow conductors.

The filament 1 of the proposed lamp, a general view of which is shown in the drawing, is enclosed in a cone or tube 2 filled with an inert gas or hollow. This flask is sealed from the ends, placed in a conventional lamp flask 5, containing air at atmospheric pressure, and suspended in it at the pin 1 attached to the ends of the thread with the help of holders 4, which also serve as current conductors from the socket to the thread 1. In its upper part the flask 5 has cutting 7, entering

E. T.

in the appropriate thread covering the flask of the sleeve 6 cap. If it is necessary to change the light element of the lamp, the bulb 5 is unscrewed from the base, the cone 2 is removed from the bulb 5 and replaced with a new one.

The subject of the patent.

An electric incandescent lamp with a luminous element enclosed in a small cone or tube, in turn, is placed in an outer flask, characterized in that the outer flask 5, filled with air at atmospheric pressure and provided in the upper part with cutting 7, is screwed into the corresponding cutting covering the flask of the sleeve 6, the socle, the inner cone, which is a replaceable element, is hermetically sealed, hollow or filled with an inert gas, is equipped with leads, which are soldered to both ends of the filament assigned to be attached to the cones supporting the supply conductors 4.