DE2120738A1 - Device for the delivery of an active ingredient in normally closed, but openable spaces - Google Patents

Description

Device for the delivery of an active ingredient in normally closed, However, 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 z. B. a deodorant, a perfuming agent, an insecticide or the like. In normally closed, but with a one Connection with the environment enabling opening part, such. B. a door, flap or the like. Provided rooms, for example toilets, bathrooms, cupboards, etc.

According to the main patent, one of the frequencies is used for the purpose of obtaining the opening and closing of the space proportional release of the active ingredient Actuation of the dispensing member of the drug container, which is attached to the opening part is, by means of a rotating mass which is also pivotably linked to the opening part. As a result of the inertia of the flywheel it opens and closes each time the opening part, d. H. the door, Flap or the like., An almost constant amount of the active ingredient released, so that the concentration of the Active ingredient in the interior of the room in question does not increase over time, because yes the addition of active ingredients depending on 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 closing movement and during the sudden deceleration The door is in the closed position. With a partial door that closes inwards is open, the operations follow in the reverse direction, i. H. the sudden acceleration the device when the door is opened triggers an active ingredient release process, and likewise 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.

In practice it has now been shown that in some applications, for example when attaching a device according to the main patent to the toilet door a family of three, the contents of the drug container, so in general an aerosol bottle, too quickly, for example after about a week exhausted can be, From this the conclusion can be drawn that with every actuation from the Aerosol container too much active substance leaking with propellant gas. In a mechanical way and In this way, this cannot be prevented, or at best only with difficulty.

The object of the invention is to remedy this that occurs in some applications To avoid problems when using the subject matter of the main patent.

The invention is based on the idea that this should be taken care of must that only a gaseous mixture emerges from the aerosol bottle. This will the amount escaping with each actuation is considerably reduced compared to a Embodiment in which the active ingredient in liquid form, even with the finest spray distribution, exit. Accordingly, the object is achieved in that as an active ingredient container an aerosol container is provided which contains an azeotrope, d. H. a mixture of active ingredient and propellant, in which 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 removed not, as was previously the case with all aerosol containers, from the liquid space of the Container takes place, but rather from the gas space. This is done in the way that in the case of using a container with a downward-facing Extraction device a riser tube reaching into the gas space is available while in use a container with upward removal device this directly with the overhead gas space of the container is connected. So the arrangement will be accurate taken the other way around, as with previously known aerosol containers, which are yes with the overhead Removal device one to the bottom of the container, d. H. so down to the bottom Have riser tube reaching the end of the liquid space.

Claims (1)

Claim Device for the delivery of an active ingredient, e.g. a dorant, a perfuming agent, an insecticide or the like in normally closed, but with an opening part that enables a connection with the environment, such as e.g. rooms provided with a door, flap or the like, e.g. toilets, Bathroom, closets, etc., in the case of the patent. (Patent application P 20 54 219.2) in order to achieve a frequency proportional to the frequency of opening and closing of the room Release of the active ingredient the actuation of the release organ of the active ingredient container, the is attached to the opening part, by a likewise pivotable on the opening part articulated flywheel takes place, characterized in that as an active ingredient container an aerosol container is provided, which is an azeotrope, i.e. a mixture of active substances and propellant, in which the mixing ratio between active ingredient and propellant in the liquid phase is exactly the same as the mixing ratio in the one that is being formed Gas in the container, and that the removal of the container contents from the gas space of the container is done by in the case of using a container with downwards directed removal device a riser pipe reaching into the gas space is present, while when using a container with upward Withdrawal device this is connected directly to the gas space of the container located above is.