Bottle for Liquid

The invention relates to the design of bottles for liquids that are usually consumed in small, arbitrary volume portions, namely alcoholic beverages, as well as edible oils, sauces, syrups, etc.

It is well known that liquid is released from an uncorked bottle mainly in portions. The portion is formed by tilting the bottle to form a flow of liquid that runs from the inner volume of the bottle to the outside. The rate of liquid release from the bottle depends on the cross-sectional area of the flow and the density of the liquid. To interrupt the release of liquid, the bottle is moved to a nearly vertical position. Under these conditions, a portion of the liquid flows out of the bottleneck during the dispensing of each new portion. In all cases, this leads to irreversible loss of liquid, which, when the bottle is moved to a vertical position, will pour out of the bottle by inertia until the neck is higher than the level of liquid in the bottle. The liquid that spills out of the bottle by inertia gets on the outer surface of the bottle and contaminates it.

A technical solution is known from the prior art under Japanese patent document JP2020097428A, which describes a bottle for liquid having a hollow body with a bottom and a neck with a tip located below the upper end of the neck and exceeding its diameter.

Unfortunately, this shape of the neck does not effectively interrupt the flow after the next portion of the liquid is dispensed and, accordingly, does not prevent contamination of the outer surface of the bottle.

The invention is based on the task of improving the geometric shape of the neck to create a bottle for liquid that is suitable for effective interruption of the flow after the next portion of the liquid is stopped and, accordingly, to prevent contamination of the outer surface of the bottle.

This task is solved due to the fact that a bottle for liquid, having a hollow body with a bottom and a neck with a tip located outside and below the upper end of the neck and exceeding it in diameter, according to the inventive concept, the neck has a conical chamfer from the inside, which in the working position serves as a diffuser for the dispensed liquid.

This makes it possible, when pouring out each next portion of liquid from the bottle to interrupt the flow from the side of the neck. This makes it much easier to interrupt the flow when the next portion is no longer dispensed.

The first additional difference is that the chamfer has a conical shape, and the cone surface is inclined to the symmetry axis of the neck at an angle α of 20° to 50°. In this range of angles, the most effective interruption of the flow occurs.

The second additional difference is that the neck has an annular groove between its upper end and the upper end of the tip. This makes it easier to catch the last drops when the liquid flow is interrupted. The presence of only the outer ring on the existing tips does not give the desired result. The effect is achieved when the outer ring is combined with an inner chamfer. The transition between the end of the tip and the annular groove has the shape of a cone and is formed by an angle β in the range of 15°.

The following notations are used in the attached drawing:

When the bottle is tilted, the neck is lowered to the level of the liquid inside the bottle. As soon as the neck chamfer reaches the position of the liquid level in the bottle, the liquid begins to flow out of the bottle. The liquid will flow around the chamfer and onto the end of the tip. When the bottle is placed in an upright position, the end of the tip will cut off the flow and the liquid will stop flowing out of the bottle. At the same time, the part of the liquid that continues to flow out of the bottle by inertia will fall into the annular groove. This reduces liquid spillage to virtually zero and prevents contamination of the outer surface of the bottle.

The proposed bottle for liquid, suitable for the portioned pouring of various products, can be mass-produced using existing glass and thermoplastic processing equipment. This design does not increase the weight of the bottle and therefore does not increase the price.