Dispensing – With flow controller or closure – Plural and/or carried by separably attached element
Reexamination Certificate
2000-07-06
2001-09-18
Derakshani, Philippe (Department: 3754)
Dispensing
With flow controller or closure
Plural and/or carried by separably attached element
C239S506000
Reexamination Certificate
active
06290109
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a dispenser head for a receptacle for a liquid.
2. Description of the Related Art
Dispenser heads generally comprise a manual bearing face for actuating delivery means for delivering the liquid, and an ejection nozzle provided with an internal evacuation duct that is suitable for being fed by said delivery means via a connection element that may or may not be removable.
However, nozzles for conventional heads do not enable the liquid to be conveyed to a precise zone without resulting in significant losses.
Furthermore, after dispensing, nozzles always contain left-over liquid which thus remains in contact with the ambient air until the next dispensing sequence, and which is thus capable of becoming degraded or contaminated before its turn arrives to be dispensed.
Although caps designed to close nozzles already exist, using them is unsatisfactory because they are small, often causing them to be lost and/or go unnoticed when they are in place.
GB 1 206 792 (SPERRY RAND CORPORATION) describes a dispenser head for a receptacle for a liquid. The head comprises a manual bearing face for actuating delivery means for delivering the liquid, the means being constituted in this case by a valve and an ejection nozzle provided with an internal evacuation duct.
The nozzle is constituted by a hollow rod that is slightly inclined towards the receptacle. However, means are not provided to close said nozzle.
SUMMARY OF THE INVENTION
An object of the present invention is to resolve the technical problems linked to the prior art.
According to the invention, this object is achieved by means of a dispenser head for a receptacle for a liquid, the receptacle being of the type comprising a manual bearing face for actuating the delivery means for delivering the liquid, and an ejection nozzle provided with an internal evacuation duct that is suitable for being fed by said delivery means via a connection element that may or may not be removable, said nozzle being constituted by a hollow rod inclined towards the receptacle, the dispenser head being characterized in that said rod is adapted to receive a removable cap that is constituted by a tube designed to be slidably fitted over the outside of said rod, via one end, and closed at its other end by a transverse wall having an outside face that is concave and an inside face that carries a coaxial pin that is suitable for being slidably engaged in the internal duct of the nozzle.
The transverse wall preferably has a surface area that is greater than the section of the tube so as to form a stable support base for the cap.
According to a characteristic, the free end of the pin is of truncated section.
According to another characteristic, said nozzle is defined upstream of the duct by a shoulder forming an abutment for the end edge of said tube.
According to yet other characteristics the rod is inclined with an angle &agr; lying in the range 0° to 150° relative to the axis of the receptacle, and the manual bearing face has a concave profile.
The head of the invention ensures a dispensing mode that is precise and cheap.
The inclination of the rod of the nozzle enables the head to be emptied completely, without it being necessary to turn the receptacle upside down.
Furthermore, the removable cap is very ergonomic. It is easily handled by the user and ensures very effective mechanical and hygienic protection for the rod.
The design of the dispenser head is original in appearance, and also serves technically to make it very stable and very easy to handle.
REFERENCES:
patent: 152980 (1874-07-01), Donkin
patent: 2677482 (1954-05-01), Lehmann
patent: 2717721 (1955-09-01), Gibson
patent: 4401272 (1983-08-01), Merton et al.
patent: 1206792 (1970-09-01), None
Alleard Jean-Pierre
Bougamont Jean-Louis
Leuliet David
Bacon & Thomas PLLC
Bui Thach H
Derakshani Philippe
Rexam Sofab
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