DE8803737U1 - Cream jar - Google Patents

Description

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Description:

Cream jar

The innovation concerns a container for creams, ointments or similar that can be closed with a lid. Containers of this type are well known; they are preferably made from high-quality plastics for cosmetic creams and are often double-walled for the desired thermal insulation. The lid is usually provided with an internal thread; however, it can also be a plug-in lid or a lid with a bayonet lock.

The well-known cans of this type are filled from above, whereby the cream is introduced under pressure using a filling machine and dosed at the same time. In certain special cases it is also possible to fill the mass into the can in a molten state and allow it to solidify in the can.

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Especially for air-sensitive products,

the need to fill the can as completely as possible and to avoid air pockets. In these cases it is also important to fill the can so completely that no air space remains between the surface of the mass and the inner surface of the lid. A further requirement is to fill the mass into ^the can in such a way that the surface is as smooth as possible so that the product appears in the most attractive way possible when the can is opened. With the well-known cream cans it is difficult to meet all of these requirements. In particular,

It often happens that air pockets remain in the can, which poses the risk that the product will spoil prematurely.

The innovation is based on the task of designing the cream containers in such a way that they can be filled with mass smoothly and without any air pockets.

To solve this AUiQaU(T, V G &Ggr; y c 5 C ii I 3 y S &Pgr; / u 5 ii 5 i C fl

There is a closable filling opening on the underside of the can. The mass can be filled through this filling opening with the lid closed. It lies tightly against the inner surface of the lid, so that complete filling is guaranteed. To achieve the desired surface shape of the filled mass, a shaped disc that fits tightly against the inner wall of the can and, if necessary, a sealing disc can be inserted on top of it.

After the can has been completely filled from below, the filling opening is closed with a stopper or similar. The stopper can be made of a suitable plastic, such as polyethylene, polypropylene or similar.

It can also be metallized or provided with a sealable surface.

For a special design of the stopper, it is suggested that the stopper is surrounded by a sealing ring that engages in an annular gap in the can like a labyrinth seal. This ensures that the stopper fits particularly tightly and also ensures that the filling opening can be closed completely gas-tight.

For another embodiment, it is proposed that the stopper can be sealed into the filling opening.

The plug can be made of a sealable material or can have such a material coated on the surface. Depending on the design, the plug can be heated to sealing temperature before being inserted into the filling opening so that it then melts onto the inner wall of the filling opening after insertion. The plug can also be inserted cold and then welded to the wall of the filling opening using suitable energy, for example using ultrasound.

The innovation is explained in more detail below using the attached drawing. The drawing shows an example of implementation in longitudinal section.

The can shown in the drawing is designed in particular for holding cosmetic creams. The can consists of an inner container (1), which is mainly surrounded by an outer casing (2). Between the wall of the inner container (1) and the outer casing (2) there is an air space (3) which serves as thermal insulation.

The top of the container can be closed with a lid (4). In the example shown, there is a shaped disk (C6) and a sealing disk (7)* between the lid (4) and the surface (5) of the can contents.

The molded disc (6), which can be made of polyethylene or similar, is concavely bent outwards and its flanged edge (8) fits tightly against the inner perimeter of the container (1).

The sealing disc (7) can also be made of a soft plastic - for example polyethylene

or made of paraffined cardboard or a similar suitable material.

According to the innovation, there is a closable filling opening (9) on the underside of the can. The contents of the can are added through this filling opening after the can has been closed with the shaped disc (6)/ the sealing disc (7) and the lid (4). The contents of the can are then placed in a form-fitting manner on the inner surface IQ of the shaped disc (6), whereby any remaining air bubbles are excluded.

After filling, the filling opening (9) is closed in a suitable manner. This can be done as shown in the drawing

Ig shown/ with a plug (10). The

The stopper can be made of plastic (e.g. polyethylene) or of aluminum foil. In the latter case, the foil should be coated on the surface with a suitable plastic. The filling opening can also be closed in another way (e.g. by means of an inserted disc, a plastic drip cap, etc.).

The drawing shows a preferred embodiment of the stopper. In this case, the stopper is surrounded by a sealing ring (11) which, like a labyrinth seal, engages in an annular gap (12) located in the base of the can.

0Φ this design creates a particularly tight and firm fit of the stopper and also makes the closure largely gas-tight.

References

1 inner container

2 Outer jacket

3 Airspace

4 lids

5 Surface of the can contents

6 Form disc

7 Sealing disc

8 Edge

9 Filling opening

10 plugs

11 Sealing ring

12 Annular gap

Claims (5)

Protection claims 1. Container for creams, ointments etc., which can be closed with a lid, characterized in that a closable filling opening (9) is located on the underside of the can. 2. Can according to claim 1, characterized, !5 that the filling opening (9) can be closed with a plug (10). 3. Can according to claim 2, characterized in that the stopper (10) is surrounded by a sealing ring (11) which engages in an annular gap (12) of the can in the manner of a labyrinth seal. 4. Can according to claim 2, 2g characterized by/ that the plug (10) is sealed into the filling opening (9). 5. Can according to one of the preceding claims, characterized in that the upper side of the can, which can be closed with a lid (4), has a shaped disk (6) tightly fitting against the inner wall and a sealing disk (7) between the lid (4) and the contents.