Dispensing – With lock or fastening seal – Single-use fastening seal
Patent
1999-03-09
2000-11-14
Derakshani, Philippe
Dispensing
With lock or fastening seal
Single-use fastening seal
22240213, B67D 532
Patent
active
061457043
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a spray cap for an aerosol container, comprising a housing and an actuating lever with a tubular projection, which may be inserted in or mounted on a valve tubelet of the aerosol container, according to the preamble to patent claim 1.
Spray caps for aerosol containers are known for example from the European Patent 0 160 816. The spray cap illustrated therein comprises a cap housing and an actuating lever with a tubular projection, which may be inserted in or mounted on a valve tubelet of the aerosol container. In addition there is provided a nozzle, which communicates with the feed channel and the said projection. The known actuating button is integrally formed with the cap housing, in such a way that it is connected at its rear end by means of separating webs having deliberate breakage points, and is connected at the other end by a hinge connection to the housing. For purposes of easier manufacture, the feed channel is designed as a part of the actuating button directly above the hinge connection between the nozzle and the tubular projection. By virtue of the fact that the feed channel, as a part of the actuating button, extends directly above the hinge connection between the nozzle and the tubular projection which may be mounted or inserted in the valve tubelet of the aerosol container, a minimum constructive length of the projection is achieved. By means of the design of the spray cap according to EP 0 160 816, the use of materials is reduced, this above all in the area of the centrally located tubular projection, with the consequence of reduced cooling time and a higher ejection rate of the injection moulding machines used.
Upon actuating the button in accordance with the known spray cap by downward pressure in an axial direction towards the aerosol container, the tubular projection comes into connection with the valve tubelet of the aerosol container, so that fluid or the like located in the aerosol container can be atomised into the environment via the feed channel and the nozzle.
Problems however arise when an atomiser provided with the known spray cap is transported or stored without a protective closure, with the consequence t hat, due to unintentional exertion of pressure on the actuating button, the atomiser is actuated and liquid or the like can emerge in an undesired way. In addition, the known spray cap is not secure enough against use by unauthorised persons, e.g. children.
It is therefore the object of the invention to indicate a spray cap for aerosol containers comprising a housing and actuating lever, which offers a high degree of security in a simple way against undesired or unintentional actuation.
SUMMARY OF THE INVENTION
The object of the invention is achieved by the subjectmatter according to the features of patent claim 1, the sub-claims comprising at least appropriate designs and further developments.
In accordance with the basic idea of the invention, in the proposed spray cap the actuating lever and actuating button are constructed separately in such a way that, without further manipulation, actuation, i.e. depression of the actuating button, does not lead to actuation of the valve of the aerosol container. Only by means of combined movement, entraining the actual actuating lever, is depression or opening of the valve by exertion of force on a known valve tubelet of the aerosol container effected.
Thus, according to the invention an actuating button is designed integrally with the spray cap housing and, flexibly connected therewith, an actuating button, which is separate from an actuating-lever. The actuating button has a drive hook, which co-operates with a drive projection disposed on the free end of the actuating lever. In the non-actuated condition, the drive hook and the drive projection or actuating button and actuating lever are spaced apart from each other. Axial or conventionally vertical movement of the actuating button in a downward direction, i.e. in the direction of the longitudinal axis, or towards the aerosol
REFERENCES:
patent: 3223287 (1965-12-01), Sagarin
patent: 4513890 (1985-04-01), Goncalves
patent: 5027982 (1991-07-01), Demarest
Coster Tecnologie Speciali S.P.A.
Derakshani Philippe
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