UNITED STATES PATENT OFFICE
SHOZABtTBO AKI, 'OX MILL HILL, LONDON, AND GTJNJI KOIZUMI, OF LONDON, ENGLAND
Application filed March 23, 1932, Serial Ho. 600,696, and .in Great Britain April 7, 1931.
This invention relates to devices for advertising displaying, decoration and amusement and more particularly to that class of devices comprising an inflatable balloon the 8 surface or envelope of which is adapted to be illuminated from within.
In the accompanying drawing, the figure is a front elevation of the :device with the closure plug for the seating; ring removed. According to the present invention the envelope of the balloon ,(A) which in the preferred embodiment is constituted by silk, is provided with an aperture in which is located a seating ring or washer (B) of ro
15 bust construction. The seating ring or washer which is conveniently made of resilient rubber, is preferably circular in cross section, but the shape may be varied to accommodate illuminating device of any de
20 sired form.:
For purposes of illumination an incari
. descent light bulb attached to airtight lampholder (E) or pocket electric torch of such shape and dimension as to make a gas tight
25 fit into the seating ring or washer is inserted through the aperture in the envelope. The balloon is then inflated through the customary valve (C) or nozzle provided for the purpose and it will be understood that the gas
30 tightness between the seating ring or washer and the illuminating device is thereby increased.
The device according to the invention may serve a variety of useful purposes of which
35 the following are given by way of example. The envelope may carry or have printed thereon advertising matter and be mounted on a base or be suspended from a ceiling for display in shop windows, or the envelope may
40 have a map printed thereon showing shipping or air routes etc. or the envelope or the illuminating device or both may be given various, colours and the device be used as a comical novelty, the illuminating device in this
45 instance being electricity e. g. a pocket torch.
The balloon constituted by silk is inflated
through the customary valve (C) and the
illumination is provided by an incandescent
electric light bulb attached to an airtight
60 lampholder (E) of such shape and climen
sions as when inserted through the seating ring or washer (B) in the envelope provides an airtight joint when the envelope is inflated.
It will be observed that the yielding rub- B5 her seating ring B is provided with a wide base flange which is secured gas tight to the margin of the aperture inside the balloon in any preferred manner and also that the ring is provided with a conical top which rises from the base flange inside the balloon. By virtue of the yielding elastic character of the ring and by virtue of the shape of the conical top of the ring, pressure of the inflating gas in the balloon will coact with the tendency 65 of the ring to hug the lamp holder or socket, and will compress the ring so tightly upon the lamp socket as to seal the socket gas tight in the balloon.
We claim: T0
An inflatable balloon having an aperture, a yielding ring having a wide base flange sesecured gas tight to the margin of said aperture and having a substantially conical top rising from the base flange inside the balloon, 75 a lamp holder extending through the ring to the exterior of the balloon, a bulb in the inner end of the socket inside the balloon, and a valve for inflating the balloon, pressure of the inflating gas in the balloon compressing 80 the conical top of the yielding ring against the lamp holder to seal the holder gas tight in the balloon.