Illumination – With liquid container
Patent
1993-02-24
1997-09-30
Husar, Stephen F.
Illumination
With liquid container
362 34, F21V 3300, F21K 200
Patent
active
056719981
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a new use of reactants permitting the generation of a chemiluminescent light as well as devices for this use. The invention also relates to transparent or translucent containers, such as drinking glasses, bottles or vases, using this kind of device to illuminate drinks or other liquids contained in these recipients.
The principle and the techniques for the production of chemiluminescent light are fully described in numerous patents and in a considerable literature.
Chemiluminescence is produced by the reaction of an activator with a fluorescent agent and an oxalate. Within the framework of this invention, all formulae for production of chemiluminescent light are acceptable so far as the dimensions, the volume and the weight of the combination of reactants can be adapted to the devices permitting the object of the present invention to be realized.
The use is already known of electric light for the illumination of liquids contained in vases or tanks with transparent walls, such as aquariums for example; this illumination comes from a light source activated by electricity and positioned below the transparent bottom of these containers.
It would appear to be difficult and certainly not very practical to arrange an electric lamp connected to the mains supply or fed by a battery below a drinking glass or a bottle containing lemonade, beer or any other liquid.
U.S. Pat. No. 4,563,726 of 7th Jan. 1986, entitled "Illuminated chemiluminescent drinking mug", describes a means of illuminating the liquid in a mug using chemiluminescence. In order to obtain the required illumination, this system uses the chemiluminescent light produced by a light-stick device made by American Cyanamid Company, Wayne, N.J., and sold under the trademark CYALUME, which is described in U.S. Pat. No. 3,576,987 of 4th May 1971. For the purposes of using this light-stick in the device in the U.S. invention, the mug has at its centre a hollow tube which is closed at the upper end and, at the lower end, is sealed to the periphery of a circular hole in the bottom of the mug; the Cyalume light-stick is inserted through this opening; the light-stick is cylindrical in shape and, in the currently-available model, measures 3 inches or 7.5 cm. It rests on the top of the plug which serves to close the bottom end of the tube and which is located above the level of the recipient's bottom. This central tube is sufficiently large in diameter for air to circulate around the light-stick, which is therefore not in direct contact with the liquid. This arrangement of the device in this invention is necessary because the source of chemiluminescence used is a light-stick originally intended for a use other than for illuminating liquids and for which the duration of light output is from over 3 hours up to as much as even double that time; given this long period of illumination, its intensity is greatly affected if the liquid contained in the mug is very cold; hence the advantage of having air circulate between the light-stick and the tube in contact with the cold liquid so that the envelope containing the reactants (the Cyalume light-stick) is not in direct contact with the liquid and is affected as little as possible by the its lower temperature.
The drawbacks of the system are immediately apparent: the mug which practically touches the drinker's nose when he raises the glass to drink from it; this undoubtedly affects the pleasure of drinking from an illuminated drink of this kind; from the drinker's eyes which, at its maximum intensity, can even be disagreeably bright and glaring for the drinker; temperature of the drink--in spite of certain precautionary measures to insulate the Cyalume--owing to the large surface area of the light-stick in close proximity to the cold liquid; light-stick over a period of several hours and several refills of the mug, making it impossible from a commercial viewpoint to design a disposable illuminated glass at a reasonable price.
The invention described in this document resolves these different drawbacks by
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patent: 3576987 (1971-05-01), Voight et al.
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patent: 5044509 (1991-09-01), Petrosky et al.
patent: 5171081 (1992-12-01), Pita et al.
patent: 5190366 (1993-03-01), World
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