DE2128372A1 - DEVICE FOR DISPENSING AN ACTIVE SUBSTANCE IN NORMALLY CLOSED, BUT OPEN SPACES. ADDITIONAL TO 2054219 - Google Patents

Description

Device for the delivery of an active ingredient in normally closed, but rooms that can be opened Addition to patent ..........

(Patent application P 20 54 219.2) The invention relates to a device for the delivery of an active ingredient, e.g. a deodorant, a perfuming agent, an insecticide or the like in normally closed, but with one opening part that enables a connection with the environment, such as a door, Flap or the like provided rooms, for example toilets, bathrooms, cupboards etc.

According to the main patent, in order to achieve one of the frequencies the opening and closing of the space proportional release of the active ingredient Actuation of the dispensing member of the active substance container, which is attached to the opening part is, through a also pivotably articulated on the opening part Flywheel.

This is due to the inertia of the flywheel each time it is opened and closing the opening part, i.e. the door, flap or the like, almost one constant amount of the active ingredient released, so that the concentration of the Active ingredient inside the room in question does not increase over time, because yes, the addition of active ingredients, the frequency of opening and thus of use and ventilation through the opening part is proportional. For example, takes place at a cabinet door that can be opened to the outside, a delivery from the agent container, and this dispensing process is also repeated when the cabinet door is closed, normally both at the beginning of the door's closing movement. With a toilet door that faces inwards is to be opened, the processes follow in the opposite direction, i.e. the sudden one Accelerating the device when opening the door triggers a drug delivery process off, as well as the sudden delay in the subsequent closing of the door.

In the main patent it is already indicated that, for example, as an active ingredient container Aerosol containers with a spray valve can be used as the delivery device. Since in Practice has shown that in some applications, for example when attaching a device according to the main patent on the toilet door of a family of three, the contents of the active ingredient container, so generally an aerosol bottle, too quickly, for example after about a week, may have been exhausted in a Additional application to the main patent drawn the conclusion that with every operation the end Too much active substance with propellant escapes from the aerosol container. This was fixed by that it was ensured that only gaseous mixture from the aerosol bottle exit. As a result, the amount of active ingredient that escapes with each actuation becomes considerable reduced compared to an embodiment in which the active ingredient in liquid Form, even with the finest spray distribution, emerges. Accordingly, in said Additional application proposed to vorzuseiien an aerosol container as an active ingredient container, which contains an azeotrope, i.e. a mixture of active ingredient and propellant the mixing ratio between active ingredient and propellant in the liquid phase is exactly the same as the mixing ratio in the gas that forms in the container, and that the contents of the container are not removed, as was previously the case with all aerosol containers usual, takes place from the liquid space of the container, but rather from the Gas compartment. This is implemented in such a way that in the case of using a A container with a downward-pointing removal device that extends into the gas space Riser tube is present while using a container with upward directed removal device this directly with the gas space of the above Container is connected. The arrangement is made exactly the opposite of how with previously known aerosol containers, which are located at the top of the removal device one to the bottom of the container, i.e.

So up to the lower end of the liquid space, reaching riser tube exhibit. For aerosol containers of a known type, those in use with downward dispensing device are used, on the other hand, there are no riser tubes intended.

In these known devices so occurs from the container Contains active ingredient and propellant gas with every movement of the opening part of the room-that The valve of the container is open, which briefly emits a spray jet which consists of liquid (active ingredient and fuel that has not yet evaporated) and propellant gas composed. This process is repeated until there is no liquid more escapes, but only propellant gas. In the case of using an azeotropic mixture This process is repeated until the container is completely empty.

The time has then been reached for a new, filled aerosol container must be procured and put into use.

This point in time can easily be overlooked if the user doesn't consciously pays attention to the presence of a spray jet.

This danger exists especially with those that are automatically actuated Aerosol containers according to the main patent, in contrast to aerosol containers used by hand, and, in particular, if the embodiment according to the main patent is used in which the spray jet is not directed directly into the room is, but rather in a receiving sponge; the spray jet is practical here invisible, and the user can hardly tell whether, even with the greatest care the spray can is still full or empty.

It is therefore an object of the invention not to have one for the user to create overlooked or overheard display that the inserted Aerosol container is empty. This should be done by a whistle when the emptying state is reached take place.

This object is achieved according to the invention in that in the dispensing member a whistle-like or flute-like device is attached to the drug container, the acoustically through a whistle the use up of the active ingredient or the emptying of the active ingredient container. For this purpose, it is useful approximately perpendicular to the path of the A spray jet emerging from the active substance container leads to a cavity or a channel which itself forms this cavity is arranged in such a way that its opening is arranged with a slight inclination towards the gas jet, so that this channel a whistling sound is generated when the liquid content is exhausted or when used of an azeotropic mixture in the active ingredient container, a whistle sound with each withdrawal and no more whistling sound is produced after the container has been emptied. In one case it will So the user of the device by the sound of a whistle, in the other Fall for attention due to the lack of the otherwise always occurring whistling sound made that the container of the device is emptied. With a normal aerosol container as long as the spray jet contains liquid components, there will be no whistling sound generated. If the liquid content, i.e. the active ingredient, of the aerosol container is exhausted, in this way only propellant gas escapes and flows to the one that generates a whistle contraption past. This always creates a high-pitched whistle when propellant gas (without liquid Active ingredient) is released. The fact that evacuation has occurred is therefore practically impossible to ignore. You can by a corresponding note inform the consumer in the instructions for use that if such a thing occurs Whistling sounds the active ingredient in the aerosol container is exhausted and a new, filled one Aerosol container must be used. - When using an azeotropic mixture in the container it is exactly the opposite. In this case, the exiting creates azeotrope mixture always a whistle to indicate that the device is working, while after the Emptying of this whistle does not occur and then in just as unambiguous way the user indicates that the container is empty and should be replaced with a full container can.

The whistling device can of course be of any kind and manner, e.g. be constructed in the manner of a recorder, a transverse flute, etc. The simplest solution, however, is that consisting of a simple, closed channel Hollow key principle with a transverse to the path of the exiting the drug container Spray-directed, closed channel, the opening of which with a slight incline is arranged on the gas jet.

In the drawing, an embodiment of the invention is schematic shown.

Figure 1 shows an embodiment of the invention in a downward direction Removal device of the aerosol container, according to the embodiment Figure 1 of the main patent, wherein the active ingredient container itself serves as a flywheel.

FIG. 2 shows, in an enlarged illustration compared to FIG. 1, that Attachment part, by means of which in the case of using a normal aerosol container when the active ingredient is used up or in the case of an aerosol container which is an azeotropic Contains mixture, a whistling sound is produced when the contents are emptied.

In the illustrated embodiment, the active ingredient container is used an aerosol container and a tilting valve as the delivery device of the same, -jedoch can, as also according to the main patent, the principles of the invention in the same way This also applies to aerosol containers with normal, i.e. in the longitudinal axis of the aerosol container Spray valve to be actuated, and also an active ingredient container with a pumping device use as a delivery device.

The movable opening part of the target area, i.e. a door, flap or the like is denoted by 1, the active ingredient container designed as an aerosol container with 2. In the illustrated embodiment, this has an aerosol container Tilt valve 3 on, and the outwardly protruding part of the valve cone is with 4 designated. This outwardly protruding part 4 of the valve cone of the tilt valve 3 is directly from top to bottom in a bore 5 on the opening part 1 rigidly attached bracket 6 inserted. At the lower end, the extreme end of part 4, a special part 7 is pushed on, which of course also with the part 6 could be made in one piece, namely this part has a bore 8 for part 4. Approximately perpendicular to that from part 3 at its lower end exiting spray jet is a channel 9 is arranged at its extreme end is closed and its inner end with its opening with a slight incline is arranged to the gas jet which emerges from the bore 8 downwards. On this Channel 9 produces a whistle-like or flute-like sound either, if the aerosol container 2 no longer contains any active substance, or if, in the case of one Azeotropic mixture in the active ingredient container 2, this mixture has been used up completely is. The open mouth of the channel 9 facing the spray jet is denoted by lo. -

Claims (2)

Claim 1. Device for dispensing an active ingredient, e.g. a deodorant, a perfuming agent, an insecticide or the like in normally closed, but with a connection with the environment enabling opening part, such as a door, flap or the like Rooms, for example toilets, bathrooms, cupboards, etc., in the case of the patent (Patent application P 20 54 219.2) in order to achieve one of the frequency of opening and closing the space proportional to the delivery of the active ingredient actuating the Dispensing member of the active ingredient container, which is attached to the opening part, through a centrifugal mass, which is also pivotably articulated on the opening part, takes place as a result characterized in that in the dispensing element (4) of the active substance container (2) a whistle or flute-like device (9) is attached, the acoustically the consumption of the Active ingredient or the emptying of the active ingredient container (2) indicates. 2.) Device according to claim 1, characterized in that about perpendicular to the path of the spray jet emerging from the active ingredient container a cavity leading or a channel (9) which itself forms this cavity is arranged that its opening (lo) with a slight inclination on the gas jet is arranged so that this channel (9) when exhausted of liquid content generates a whistling sound or an azeotropic mixture in the active ingredient container (2) with each withdrawal a whistling sound and no more whistling sound after emptying the container.