Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam
Patent
1995-11-09
1998-02-10
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including mixing or combining with air, gas or steam
116214, A62C 502
Patent
active
057160112
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention has as an object a process for diffusing an odoriferous substance, such as a perfume, as well as a gaseous mixture comprising an odoriferous substance in gas form, and an odorless and breathable gas.
BACKGROUND OF THE INVENTION
Different usual processes are known for diffusing an odoriferous substance. Among these processes, there may be mentioned, for example, those using a mixture consisting of an odoriferous substance in solid or liquid form, which is dissolved in a liquid solvent. Diffusing this mixture in air enables the diffusion of the odoriferous substance. Such a process may be carried out, for example, by means of an aerosol can when the solvent is sufficiently volatile or by bringing the solution in which said odoriferous substance is dissolved, to boiling. This diffusing may be assisted by carrying solvent vapors with air currents. The latter may be natural or, for a more important diffusion, be artificially created, for example by means of a ventilation system.
Diffusing of an odoriferous substance may for example be intended for masking an unpleasant odor or to spread a pleasant odor or a fragrance. Basically, odoriferous substances have been used in order to reinforce natural odors for a marketing purpose or for helping sales. It has been proposed to diffuse in the vicinity of stalls, for example a bakery or a grocery, odoriferous substances which produce an odor of brioche, fresh bread or fruits. In this case, the diffusing of odoriferous substances is mainly intended at attracting clients.
However, the usual processes, mentioned above, intended for diffusing odoriferous substances are disadvantageous if it is intended to diffuse odoriferous substances at an important distance from their source. As a matter of fact, costly means which are difficult to handle, for example ventilators, must be used.
SUMMARY OF THE INVENTION
The present invention has as an object a process for diffusing odoriferous substances which use is simplified, requires no costly means and in addition enables to diffuse said substances at constant amounts in well defined zones.
The invention then consists in a process for diffusing an odoriferous substance characterized in that:
a) a pressurized gas mixture under at least 5 bar is placed in a container, said gas mixture comprising the odoriferous substance in gas form and at least one odorless and breathable gas,
b) the container is connected to a means for releasing the gas mixture outside said container in a controlled manner, and
c) the gas mixture is released in a controlled manner outside the container so as to permit the diffusing of the odoriferous substance in gas form.
DETAILED DESCRIPTION OF THE INVENTION
The container is usually a glass bottle, preferably a compressed gas bottle. The means enabling to release said gas mixture in a controlled manner may for example consist of a pressure reducer or a flow regulator including a valve and a flow meter.
The gas mixture released outside the container, may, first diffuse in a duct or a network of ducts, and, secondly, in free air. The ducts may for example be normal rubber tubes of small diameter. As a result of the pressure to which it is subjected, said mixture may diffuse away from the container containing it. On the other hand, said ducts may be used as a means to cause diffusion of the odoriferous substance in a well localized zone. As a result, it is possible to consume only a small quantity of said mixture to produce the selected odor in a defined location.
According to another aspect of the invention, the gas mixture may first diffuse in an enclosure, such as a storing vat or a duct, containing a third gas, and this third gas may later be released outside the enclosure to be lead towards a utilization station or to be diffused in free air.
The third gas present in the enclosure enables to dilute the gas mixture released outside the container.
The third gas may be any gas, which is odorless or barely odoriferous, and to which an odor is intended to be conf
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Douglas Lisa Ann
Kashnikow Andres
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation de
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