Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Reexamination Certificate
2000-10-13
2001-03-27
Shaver, Kevin (Department: 3754)
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
Reexamination Certificate
active
06206246
ABSTRACT:
The present invention relates to a device for dispensing a liquid from a tank.
More precisely, the invention applies to dispenser devices comprising: firstly a pump
1
provided, in particular, with a cylindroconical body fixed in the tank and a spray tube that projects out from the body and capped by a pushbutton; and secondly a collar for covering the pump and fixed in a low position on the neck of the tank.
In general, the pump body has an upper shoulder extending via a horizontal annular plate designed to support the covering collar during storage and transport of the device and before said device is assembled on the tank that has previously been filled with liquid.
However, because various tank-neck formats exist, covering collars have to be made to match a variety of dimensions.
In such conditions, it is also necessary to provide a pump body in as many versions as there are collars and neck diameters.
Consequently, it is necessary to have a series of molds for manufacturing the pump bodies and a plurality of assembly machines adapted to the various bodies.
That situation is thus disadvantageous from an economic point of view and harmful to the productivity of the manufacturing and assembly chains.
An object of the present invention is to resolve the technical problems in satisfactory manner.
The invention achieves this object by means of a dispenser device of the above type in which the collar includes, on its inside face, projecting members that enable said collar to be held temporarily in a high position by radial clamping on the outside face of the pushbutton.
SUMMARY OF THE INVENTION
According to an advantageous characteristic, said projecting members are constituted by at least two diametrically opposite bumps each having a contact face that is at least partially cylindrical and that is substantially parallel to the facing outside face of the pushbutton.
According to another characteristic, the outside of the pushbutton is sheathed in a sheath made of a material such that its coefficient of friction with the projecting members enables the collar to be held.
According to yet another characteristic, said collar includes snap-fastening members designed to co-operate with a peripheral rim formed on the neck of the tank.
In a specific embodiment, said snap-fastening members are constituted by at least two catches carried by the inside face of said collar.
The snap-fastening members are angularly offset relative to the holding members.
In a variant, the outside of the collar is also sheathed in a sheath.
The present invention makes it possible to eliminate the numerous pump-body versions that were necessary with conventional devices, retaining only a single standard embodiment having a single diameter of plate that matches any tank.
Holding the collar in a high position is now ensured by radially clamping said collar on the pushbutton and no longer on the pump body, thereby simplifying the assembly operations and also offering mechanical protection to the pushbutton.
The invention will be better understood on reading the following description accompanied by the drawings.
REFERENCES:
patent: 4773553 (1988-09-01), Van Brocklin
patent: 5348174 (1994-09-01), Velicka
patent: 5642908 (1997-07-01), Mascitelli
patent: 5799810 (1998-09-01), de Pous et al.
patent: 5941428 (1999-08-01), Behar et al.
patent: 0653359 (1995-05-01), None
Bougamont Jean-Louis
DuMont Pierre
Lompech Herve
Bacon & Thomas PLLC
Buechner Patrick
Rexam Sofab
Shaver Kevin
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