Patent Application
20180117994
Not Applicable
Not Applicable
Not Applicable
The present application relates to systems for dispensing scented fluids.
Air fresheners are available in many form factors. In particular, there are automobile air fresheners that come pre-filled with an aromatic liquid that, as the liquid evaporates and becomes a fragrant gas, permeates through a semipermeable membrane.
The problem with these systems is that you are limited to the fragrance supplied by the vendor and they rely solely on evaporation to supply the amount of fragrance in the air, which may or may not be enough. For example, someone eating a fish sandwich in the car may totally overpower the scent emitted by evaporation alone coming from the air freshening device. While it may be possible to use a separate spray air freshener during periods of intense need, it is highly unlikely that they will be emitting the same fragrance and undesirable effects may occur.
Therefore, there continues to be a need for an air scenting system that is fillable by the end consumer and also allows for applying a more intense release of the desired fragrance than is supplied simply do to evaporation.
In order to overcome the deficiencies in the prior art, systems and methods are described herein.
One aspect of the claimed invention involves an air scenting system comprising a vessel configured to hold an aromatic liquid having at least two apertures. One aperture is configured to be sealed by one or more semi-permeable membranes and the other is configured to be connected to one or more atomizers, whereby both evaporated scented air and atomized scented liquids can be emitted.
Additional aspects involve the end user being able to fill the vessel with a scent of their own choice.
These and other aspects described herein present in the claims result in features and/or can provide advantages over current technology.
The advantages and features described herein are a few of the many advantages and features available from representative embodiments and are presented only to assist in understanding the invention. It should be understood that they are not to be considered limitations on the invention as defined by the claims, or limitations on equivalents to the claims. For instance, some of these advantages or features are mutually exclusive or contradictory, in that they cannot be simultaneously present in a single embodiment. Similarly, some advantages are applicable to one aspect of the invention, and inapplicable to others. Thus, the elaborated features and advantages should not be considered dispositive in determining equivalence. Additional features and advantages of the invention will become apparent in the following description, from the drawings, and from the claims.
The instant devices and approach provide a way to provide custom scented fluids (or air freshener) in the form of both evaporated scented air and atomized scented liquids.
In
In the exploded and partially assembled views of
The sealing of the semipermeable membrane 150 over the plurality of evaporation apertures 112 can be accomplished by direct attachment such as adhesive, solvent, thermal (e.g. heat, ultrasonic . . . etc.) bonding or indirectly for example similar to the retaining ring of a Mason® jar where in this instance there could be a membrane cover (not shown) or the cover 130 could be configured to capture the membrane 150 around it's periphery and then seal to the vessel 100. The capturing of the membrane 150 within the membrane cover can be through any of the process mentioned for sealing the membrane 150 to the vessel 100 or it may simply capture it do to compression against the vessel 100.
Whether or not compression is utilized to capture the membrane 150, it is particularly advantageous if the membrane cover (or an appropriately configured cover 130) and the vessel 100 have mating threads (or similar) such that the membrane 150, through the use of the membrane cover, can be removably sealed to the vessel. This is advantageous because it provides a means of the user filling the vessel 100 custom scent. This is also particularly advantageous in the event of compression as it also allows for the capability of disposable membranes 150.
It is worth noting that a refillable semipermeable membrane air scenting system, as disclosed above, regardless of whether or not it is configured to also atomize scented liquids, is a valuable consumer product.
In
Also shown attached to the case 130 is airflow control 160, which is designed to adjust the flow through the evaporation ports 120 and thus regulate the air flowing through the one or more semi-permeable membranes 150. Airflow control 160 is shown as rotatable louver. While a louver is designed to restrict the air flow, other means of increasing air flow, such an a battery operated fan, are also anticipated.
Returning our attention to producing atomized scented liquids, atomizer 12 extends into vessel 110 through atomizing aperture 114 and is shown as pump activated atomizer. While atomizer 12 could be permanently attached to vessel 100, for illustration purposes, atomizer 12 is represented as removably attachable through mating threads (not displayed), which is advantageous in that it allows a different means for the user to add a their own scented fluids to the vessel 100.
Atomizers are well known in the art. However, in order to appreciate an unanticipated benefit of the air scenting systems described here in, it is useful to review the basic operation of an atomizer. To this end,
In
What is not appreciated is that if vessel 240 is sealed then every time liquid 230 is withdrawn then the volume of air 250, above the liquid 230, gets bigger. The increase in air volume causes a drop in air pressure above the liquid and creates a vacuum. If enough liquid 230 is withdrawn then the pressure differential when the bulb 200 is squeezed may not be sufficient to cause atomization.
To overcome this problem, the simplest solution is to put a hole in the vessel 240 above the liquid 230 such that air can freely flow back into the vessel 240. However, this is disadvantageous as anyone that has ever turned an older perfume bottle upside down and had it leak all over his or her hand knows.
To overcome this problem people have gone to elaborate lengths and created complex systems of valves to open and close at just the right point of the atomization cycle. However, an unanticipated benefit of the air scenting systems described herein is that by combining a semipermeable membrane for evaporation that there is no need for a secondary venting system.
Finally, it is to be understood that various different variants of the invention, including representative embodiments and extensions have been presented to assist in understanding the invention. It should be understood that such implementations are not to be considered limitations on either the invention or equivalents except to the extent they are expressly in the claims. It should therefore be understood that, for the convenience of the reader, the above description has only focused on a representative sample of all possible embodiments, a sample that teaches the principles of the invention. The description has not attempted to exhaustively enumerate all possible permutations, combinations or variations of the invention, since others will necessarily arise out of combining aspects of different variants described herein to form new variants, through the use of particular hardware or software, or through specific types of applications in which the invention can be used. That alternate embodiments may not have been presented for a specific portion of the description, or that further undescribed alternate or variant embodiments may be available for a portion of the invention, is not to be considered a disclaimer of those alternate or variant embodiments to the extent they also incorporate the minimum essential aspects of the invention, as claimed in the appended claims, or an equivalent thereof.
