Illumination – Chemiluminescent lighting
Patent
1995-12-15
1997-12-09
Cariaso, Alan
Illumination
Chemiluminescent lighting
362101, 362253, 215393, 24834611, 252700, F21K 206
Patent
active
056952708
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to coasters, and more particularly to coasters of the type supporting receptacles or drinking glasses, wherein the coaster includes at least one surface that is at least partially light transmissive and further includes a chemiluminescent light source therein.
The coaster which is the subject of this invention is a coaster of which at least one of the surfaces is wholly or partially transparent or translucent, and to which has been associated a chemiluminescent light source in the form of a envelope containing reagents inducing the chemiluminescence, light source which makes either one or both sides of the coaster, intensely luminous for a certain period.
In addition to that indicated by its name, the coaster can be used for purposes other than simply being placed beneath glasses or other receptacles where either the base of the receptacle or the table or support on which the receptacle is resting need to be protected. It can be used for advertising or communication purposes, or for decoration purposes as cocktail accessories in lounge bars, for example.
2. Description of Related Art
Coasters have existed for many years; many types of coaster are manufactured from cardboard with varying levels of absorbency; those which are printed with advertising logos, trade-marks, or advertising messages are generally thrown away quickly and replaced as soon as they have become wet or dirty. There are many other types of coaster; some more expensive types are made of metal, leather, plastic which may be metallized, wood, etc.; in view of their higher price these coasters are manufactured for bar decor and are used regularly to protect the receptacle or the bar itself; they are not objects to be thrown away after use.
In casinos or gaming houses, chemiluminescent coasters can be used in particular as imitations of chips, or high-stake chips, bearing the mark or advertisement of the casino; they have the effect of drawing attention to the size of the sum bet and add a festive air to the casino's atmosphere.
The following provides general information on the phenomenon of chemiluminescence.
The principle and technology of chemiluminescent light production are well known and are amply described in many patents, such as U.S. Pat. No. 4,678,608 dated 7 Jul. 1987 entitled "Chemiluminescent composition" (C. Dugliss).
Chemiluminescence is produced by the reaction of an activator with a fluorescent agent and an oxalate.
It is interesting to note here some interesting characteristics of chemiluminescence reaction that reveal their importance when the invention is applied in practice.
By measuring the doses of the various reagents, chemiluminescence chemistry can modulate the duration and intensity of illumination: it is therefore possible to manufacture luminous charges where the duration of luminosity can be set in advance, clearly only approximately, to last either for a short period of 1 to 2 hours, or a longer period of 6 to 7 hours or more, depending on the user's preference. The longest duration is most likely to be the preferred option in the case of luminous coasters.
There are TWO physical utilization methods for chemiluminescent light:
The first method, or METHOD A, consists of utilizing chemiluminescent light by extemporaneous mixing of the reagents which is carried out only at the moment the light is required. This first method which may be known as "extemporaneous" makes it possible to store the chemiluminescent object at room temperature in the conditions at which it will be conserved for as long as possible, it should be particularly kept away from damp. In this "extemporaneous" method, it is not absolutely necessary that the separated reagents be both in liquid form, one of them can be in solid form.
The second method or METHOD B involves utilizing ready-mixed reagents in order to produce the chemiluminescent light, but where chemiluminescent reaction is impeded by a sufficiently cold temperature. In fact literature concerning chemilumine
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