Push-button dosage device with stroke counter

The present invention relates to a push-button dosage device with stroke counter.

As is known, push-button dosage devices with stroke counter are already commercially available and are applied to medicament bottles, sprays and the like so as to indicate the number of strokes performed by the push button on which pressure is exerted, creating a progressive count of the doses dispensed.

In known devices, such as for example the one disclosed in patent EP 0 114 617, the counting scale does not indicate the initial strokes which must be performed in order to prime the pump which draws the product, for example a medical one, contained in the bottle.

The aim of the invention is to provide a dosage device wherein the user can have a clear indication not only of the number of strokes performed, i.e. the number of dispensing actions performed, but also of the strokes which he must perform in order to activate the correct operation of the device.

Within the scope of the above aim, a particular object of the invention is to provide a dosage device which allows the user to easily detect the type of actuation he must perform and the last executable dispensing action.

Another object of the present invention is to provide a push-button dosage device with stroke counter which, by virtue of its peculiar characteristics of execution, is capable of giving the greatest assurances of reliability and safety in use.

Not least object of the present invention is to provide a dosage device which can be easily obtained starting from commonly, commercially available elements and materials and is furthermore competitive from a merely economic point of view.

This aim, the objects mentioned and others which will become apparent hereinafter are achieved by a push-button dosage device with stroke counter, according to the invention, comprising an outer skirt axially slideable with respect to an inner body which is rotatable in a stepwise manner and is associable with an element coupleable to a bottle, said inner body being provided with a counting scale which is visible from an opening of said skirt, characterized in that said counting scale is provided, in succession, with an initial sector, at least one non-dispensing indication sector, a sector indicating readiness for use and a plurality of sectors identified by progressive numbers.

Further characteristics and advantages will become apparent from the detailed description of a push-button dosage device with stroke counter, illustrated only by way of non-limitative example in the accompanying drawings, wherein:

• figure 1 is a schematic perspective view of the dosage device according to the invention, applied to a bottle;
• figure 2 is a partially exploded view of the dosage device, with the counting scale partially removed;
• figure 3 is a partially cutout view of the counting scale applied to the inner body;
• figure 4 is a view of the counting scale arranged flat.

With reference to the above figures, the push-button dosage device with stroke counter, generally designated by the reference numeral 1, comprises an outer skirt 2 which is provided with upper wings 3 for its actuation in a push-button-like manner and can slide axially with respect to an inner body 5 which can rotate in a stepwise manner and is associable with an element which can be coupled to a bottle 6.

The type of mechanism interposed is not described in detail since it does not constitute the subject of the present invention and is for example of the type disclosed in the previously mentioned patent EP 0 114 617.

A counting scale, generally designated by the reference numeral 10, is provided on the inner body 5 and is preferably but not necessarily constituted by a portion of adhesive tape which can be applied circumferentially on the inner body 5 so that its ends meet.

The peculiarity of the invention is constituted by the fact that said counting scale 10 is provided, in succession, with an initial sector 11, marked for example in black, which is followed by a plurality of sectors, preferably three sectors 12, which indicate the non-dispensing condition; said sectors 12, which in practice correspond to the actuations required to prime the pump, are advantageously provided red.

After the three red sectors, there is a sector 13, indicating readiness for use, which is preferably green.

After the ready sector 13 there are counting sectors 14 which bear progressive numeric indications.

The last of the counting sectors, designated by the numeral 20, advantageously has a coloring which differs from the other ones in order to visually indicate that the user has performed all the dispensing actions allowed by the bottle.

In the specific embodiment, the counting sectors are numbered progressively with the numerals 1 to 16, and 16 is indicated with a red coloring, so as to differentiate it from the remaining counting sectors.

The various counting sectors are individually visible at the opening 30 which is provided at the lower free end of the outer skirt 2.

From what has been described above, it can thus be seen that the invention achieves the intended aim and objects, and in particular the fact is stressed that the particular type of counting scale allows the user to immediately perceive whether he has performed a correct dispensing action or whether he is in an initial region in which the dispensing of the product has not been performed or in any case has been performed incorrectly, since during the initial step it is necessary to prime the pump of the device.

From what has been described above it can thus be seen that the invention achieves the intended aim and objects, and in particular the extreme constructive simplicity and the rationality of the counting scale are stressed once more.

In practice, the materials employed, so long as compatible with the specific use, as well as the dimensions and contingent shapes, may be any according to the requirements.

Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.