Dispensing – With lock or fastening seal – Inhibiting operation of flow controller or closure
Patent
1994-12-28
1997-11-04
Derakshani, Philippe
Dispensing
With lock or fastening seal
Inhibiting operation of flow controller or closure
222556, 222562, 215237, B67B 500
Patent
active
056830165
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is a plastic cap particularly suitable for dispensing liquids, which can be connected to the neck of a deformable container. We are referring in particular to plastic caps in which an outflow duct is connected with a pipe for drawing the liquid from the bottom of the container.
2. General State of the Art
The known types of plastic caps for dispensing liquids substantially have a body connected with the neck of the container, said body being provided with a central part that projects outwards and is connected to a pipe drawing out the liquid. These caps are also provided with a cover connected with the central body of the cap by means of a hook and they can be separated from said central body by deforming the container with the pressure of the fingers.
According to the known technique, this sort of caps is carried out by means of a complex mould, in order to obtain the tooth that belongs to the body of the cap and sticks out of the base of said body upwards, in such a way as to cooperate with a corresponding hook situated on the cover. Both the patents DE 3632057-C2 and the patent FR 2 591 571 concern a plastic cap for dispensing liquids in which the cover closes against that part of the cap that is fixed to the bottle by means of a hook belonging to said part.
The drawing regarding the practical application of the patent clearly shows that the hook is obtained by means of a mould with at least a carriage moving transversally with respect to the opening and closing direction of the mould.
SUMMARY OF THE PRESENT INVENTION
A purpose of the invention is to obtain a cap structured so that it can be carried out by means of a very simple mould without transversal carriages.
Another purpose to be reached is that the cap of the invention has a sealing capacity at least equivalent to that of the caps of the same kind known up to now.
All the purposes mentioned above and others that will be better highlighted below, have been achieved by a plastic cap for dispensing liquids to be connected to the neck of a deformable container, which according to the first claim comprises:
a main body having a first substantially cylindrical outer wall that can be screwed onto the neck of the container and is coaxial with respect to a second cylindrical wall introduced into the neck of the container, said main body having, in the middle, a generally cylindrical hollow part projecting upwards and provided with fins for fastening a suction pipe suitable for drawing the liquid out of the container, the cylindrical hollow part having a lateral outlet for flowing the liquid, said main body being provided in the front of the cap with a hook placed approximately near the perimetrical edge of said body and suitable for cooperating with the corresponding projection positioned on a cover;
a cover connected by means of an elastic hinge to said main body, said cover being provided in the middle with a hollow cylindrical element housing the cylindrical part of said main body and having, in correspondence with its inner edge, a hook-shaped projection suitable for cooperating with the corresponding projection of the main body, the invention being characterized in that, at the base of the hook of said main body, there is a hole through which a mold part (not shown) passes during the moulding, said part moving in accordance with the axis of said main body.
Advantageously, according to the invention, due to the presence of a hole in the cap there is the possibility of moulding the cap by means of a substantially very simple mould without carriages, since, as it will be observed later on, the moulding takes place by direct clamping with a single movement of the mould along its only clamping axis.
Even with a hole at the end of the edge of the cap the outflow of the liquid is prevented since the cap seal with respect to the neck of the container is guaranteed both by the cylindrical wall resting on the inner edge of the neck and by a ring-projection resting on the plane of the uppe
REFERENCES:
patent: 2571504 (1951-10-01), Vuillemenot
patent: 3381860 (1968-05-01), Armour
patent: 3710989 (1973-01-01), Armour
patent: 4782964 (1988-11-01), Poore et al.
patent: 4809874 (1989-03-01), Pehr
patent: 4838441 (1989-06-01), Chernack
patent: 4940167 (1990-07-01), Fillmore et al.
Derakshani Philippe
TAPLAST SRL
LandOfFree
Molded plastic cap for dispensing liquids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Molded plastic cap for dispensing liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molded plastic cap for dispensing liquids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1826055