Glass Bottle

Abstract

A glass bottle body made up by a neck jointed in continuity to a receptacle tubular wall, said bottle body being closed by a bottom wall placed on a bottle end side opposite regarding said neck, defining said bottom wall a receptacle capable of holding liquids, characterised in that said bottom wall is extended, in a perimeter area, by a base tubular wall that internally defines a cavity, said base tubular wall and the receptacle tubular wall being in opposite sides of the bottom wall; and the average height of the base tubular wall being equal to or larger than the average thickness of the base tubular wall, being the contents of the bottle highlighted by two laterally visible layers of the bottom of the bottle, producing a stand effect.

Claims

1. A glass bottle including at least a glass bottle body made up by a neck (11) jointed in continuity to a receptacle tubular wall (10), defining said receptacle tubular wall (10) an inner side (12) and an outer side (13), and said bottle body being closed by a bottom wall (14), placed on a bottle body side which is opposite to said neck, defining a receptacle (20) capable of holding liquids; said receptacle tubular wall (10) being joined to the perimeter of said glass bottom wall (14); characterised in that said bottom wall (14) is extended, in a perimeter area, by a base tubular wall (15) defining said base tubular wall (15), on its internal side, a cavity (21) being said cavity (21) opened to the outside through a bottle distal end area opposite to said bottle neck (11), being said base tubular wall (15) and the receptacle tubular wall (10) placed on opposite sides of the bottom wall (14); the average height of the base tubular wall (A15) being equal to or larger than the average thickness of the base tubular wall (G15); and the average thickness of the bottom wall (G14) is equal to or larger than the average thickness of the base tubular wall (G15).

2. A bottle according to claim 1 characterised in that the average height of the base tubular wall (A15) is equal to or larger than the average thickness of the base tubular wall (15) in its proximal area of juncture with the bottom wall (14).

3. A bottle according to claim 1 or 2 characterised in that the bottom of the receptacle (20) concordant with one side of the bottom wall (14), and the bottom of the cavity (21) concordant with the other side of the bottom wall (14), are substantially parallel.

4. A bottle according to claim 1, 2 or 3 characterised in that the average thickness of the bottom wall (G14) is equal to or larger than 1.5 times the average thickness of the base tubular wall (G15).

5. A bottle according to any one of the preceding claims characterised in that the average thickness of the base tubular wall (G15) is equal to or larger than the average thickness of the receptacle tubular wall (G10).

6. A bottle according to any one of the preceding claims 1 to 4 characterised in that the average thickness of the base tubular wall (G15) is equal to or larger than 2 times the average thickness of the receptacle tubular wall (G10).

7. A bottle according to any one of the preceding claims characterised in that the height of the base annular wall (A15) is equal to or larger than the average thickness of the bottom wall (G14).

8. A bottle according to any one of the preceding claims 1 to 6 characterised in that the average height of the base tubular wall (A15) is equal to or larger than 1.5 times the average thickness of the bottom wall (G14).

9. A bottle according to any one of the preceding claims characterised in that the outer side (13) of the receptacle tubular wall (10) and the outer side of the base tubular wall (15) are mutually aligned and flush with the perimeter of the bottom wall (14).

10. A bottle according to any one of the preceding claims 1 to 8 characterised in that the outer side (13) of the receptacle tubular wall (10) and the outer side of the base tubular wall (15) are tangent to each other.

11. A bottle according to any one of the preceding claims characterised in that the outside opening of the cavity (21) has a smaller or larger-sized surface than the size of the cross-section of the receptacle (20) in a position adjacent to said bottom wall (14).

12. A bottle according to any one of the preceding claims characterised in that the receptacle tubular wall (10) and/or the base tubular wall (15) have a circular, elliptical, square or rectangular cross-section.

13. A bottle according to any one of the preceding claims characterised in that the volume of the cavity (21) is at least 4% of the volume of the receptacle (20).

14. A bottle according to any one of the preceding claims 1 to 12 characterised in that the volume of the cavity (21) is at least 10% of the volume of the receptacle (20).

15. A bottle according to any preceding claim characterized in that at least one rounded joint between the bottom wall (14) and the receptacle tubular wall (10) and/or between the bottom wall (14) and the base tubular wall (15) have a radius of curvature equal or bigger than the average thickness of the bottom wall (G14).

16. A bottle according to any preceding claim characterized in that the bottom wall (14) is flat or that said bottom wall (14) has a radius of curvature equal or longer than two or more times the average width of the hollow cavity (21).

17. A bottle according any preceding claims 1 to 15 characterized in that at least one rounded joint between the bottom wall (14) and the receptacle tubular wall (10) and/or between the bottom wall (14) and the base tubular wall (15) have a radius of curvature equal or bigger than the half of the width of the hollow cavity.

18. A bottle according to any preceding claim characterized in that the average width of the hollow cavity is bigger than the average high of the base tubular wall (A15).

19. A bottle according to any preceding claim characterized in that the average width of the hollow cavity is bigger than 4 cm.

20. A bottle according to any preceding claim 1 to 14, 16, 17, 18 or 19 characterized in that at least one rounded joint between the bottom wall (14) and the receptacle tubular wall (10) and/or between the bottom wall (14) and the base tubular wall (15) have a radius of curvature smaller than the average thickness of the bottom wall (G14).

21. A bottle according to any preceding claim characterized in that the centre of the bottom of the hollow cavity (21) is more distant to the opening of the cavity than the perimeter of the bottom of the receptacle (20).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The above and other advantages and characteristics will be more fully understood from the following detailed description of one exemplary embodiment with reference to the attached drawings, which must be taken by way of illustration and not limitation, wherein:

[0054] FIG. 1 shows a longitudinal section of a known state-of-the-art glass bottle provided with a bottom wall with a punt;

[0055] FIG. 2A shows a longitudinal section of an exemplary embodiment of the glass bottle proposed in the present invention;

[0056] FIG. 2B shows a longitudinal section of an alternative embodiment of the glass bottle proposed in the present invention;

[0057] FIG. 3a shows a first manufacturing step of the proposed glass bottle wherein the at least three segments making up the mould are separated and a predetermined amount of molten glass is arranged among the at least three mould segments, said predetermined amount of glass being a parison;

[0058] FIG. 3b shows a second manufacturing step of the proposed glass bottle wherein the segments that make up the mould have been attached to one another, making up the moulding chamber, into which that predetermined amount of molten glass is being applied against the inner walls of the mould through the blowing carried out through the blowing aperture and by means of the suction carried out through the suction openings;

[0059] FIG. 3c shows a third manufacturing step, prior to the demoulding, wherein the bottle to be manufactured has been fully made up inside the mould.

DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

[0060] According to a non-limiting exemplary embodiments shown in FIGS. 2A and 2B, there is proposed a glass bottle 1 suitable for holding liquids, such as drinks or perfumes, said bottle 1 being formed by a neck 11 jointed in continuity to a receptacle tubular wall 10 through, for instance, transitional shoulders, and the receptacle tubular wall 10 being jointed in continuity to a bottom wall 14. The juncture of the neck 11, the receptacle tubular wall 10 and the bottom wall 14 defines the receptacle 20 therein destined to hold liquids.

[0061] The neck 11 is prepared to be capable of being hermetically sealed by means of a cap, in this exemplary embodiment by means of a cork cap inserted by means of force-fitting in said neck, but other materials, such as glass, are also very commonly used.

[0062] In the FIG. 2A exemplary embodiment, the receptacle tubular wall 10 is a hollow cylinder and the bottom wall 14 is circular, their diameters being coincident and the receptacle tubular wall 10 being joined to the perimeter of the bottom wall 14.

[0063] The bottom wall 14 is extended by a base tubular wall 15, located on one side of said bottom wall 14 opposite that of the bottom wall 14 joined to the receptacle wall 10 and delimiting the receptacle 20. Said base tubular wall 15 and said bottom wall 14 define a hollow cavity 21 that opens and communicates with the outside by a distal end of the base tubular wall 15, whose edge defines the opening of said cavity 21, which is located in a position of the bottle 1 opposite the position occupied by the neck 11.

[0064] In this exemplary embodiment, the average height of the base tubular wall A15 is about 2.5 times the average thickness of the base tubular wall G15. Likewise, the bottom wall 14 is substantially flat and the average thickness of the bottom wall G14 is about 1.5 times the average thickness of the base tubular wall G15.

[0065] These proportions give origin to a bottle 1 with a thick bottom wall 14 supported on a slender base tubular wall 15, both the average thickness of the bottom wall G14 and the average height of the base tubular wall A15 being ostensibly visible from the side of the bottle 1. In fact, the optical properties of the glass, together with the existent rounded joints between the bottom wall 14 and the receptacle tubular wall 10 and the base tubular wall 15, cause, from a lateral viewpoint, the apparent thickness of the bottom wall 14 to be larger than the average thickness of the actual bottom wall G14, due to an optical effect.

[0066] Said bottom wall 14 and base tubular wall 15 have distinctive optical behaviour, especially when filling the container 20 of the bottle 1 with a coloured liquid, since it produces optical effects that highlight the liquid, since the latter is overlapped on two laterally visible and distinguishable base fringes. This effect highlights the contents of the bottle, and it places the latter on two overlapping fringes that create a stand effect.

[0067] For a cylindrical bottle with a capacity of 750 millilitres like the one shown in FIG. 2A, a bottom wall 14 is proposed, by way of a non-limiting example, with an average thickness of the bottom wall G14 of 1.9 cm and with a diameter of 8.3 cm, a base tubular wall 15 with an average height of base wall A15 of 2.4 cm and with an average thickness of base wall G15 of 0.8 cm, and an average thickness of the receptacle tubular wall G10 of 0.4 cm.

[0068] In the alternative embodiment shown in FIG. 2B the average height of the base tubular wall A15, the average thickness of the base tubular wall G15, the average thickness of the bottom wall G14 and the average thickness of the receptacle tubular wall G10 are equal. In this embodiment the outer side 13 of the receptacle tubular wall 10 and the outer side of the base tubular wall 15 are tangent to each other being both surfaces coincident in an angle.

[0069] Said proposed bottles clearly differs from the bottles customary in the field shown in FIG. 1, by placing the entire bottle 1, including its bottom wall 14, on top of an extension of said bottom wall 14 in the shape of a base tubular wall 15, thereby rising the whole bottle 1 and its receptacle 20, which differs from the classical solution (FIG. 1) consisting of including a punt in the bottom wall that will enter the receptacle, thereby generating a double tubular wall in the bottom of the receptacle filled with liquid, thus increasing the interface of the liquid with the outside (and, as a result, speeding up their thermal exchange); in addition, the liquid introduced between both walls visually hides the punt of the bottom wall 14, which becomes invisible or hardly visible from the side of the bottle 1 in case of opaque or translucent liquids, thus producing no stand effect.

[0070] For the manufacture of said bottle 1 on an industrial scale, a mould 30 is required composed by at least three mutually attachable segments for making up an enclosure defined by inner mould walls 41 and a mould bottom 40. One first mould segment 31 makes up the mould bottom 40, and at least two other segments 32 and 33 make up the inner walls 41 of the mould, a deep perimeter annular groove 42 being left—defined between the first segment 31 and the at least two other mould segments 32 and 33—whose depth is equal to or larger than its average width. Said annular groove 42 will give shape the base tubular wall 15 after the moulding of the molten glass 50.

[0071] The mould also makes up the neck 11 of the bottle 1, and it is in that part of the mould where a blowing aperture 60 is contemplated.

[0072] The manufacturing procedure begins by arranging a predetermined amount of molten glass 50 inside the mould 30, said molten glass being preferably a parison provided with a neck 11, a receptacle tubular wall 10 and a bottom wall 14, and the receptacle of said parison being open to the outside through said neck, allowing the subsequent blowing of molten glass through said neck.

[0073] Then the closure of the mould is carried out around said predetermined amount of molten glass, leaving the neck 11 of the parison trapped inside the blowing aperture of the mould, and the blowing of the amount of molten glass is subsequently carried out through said neck 11 of the bottle 1, which is connected to blowing means. This expands the molten glass, expanding the receptacle 20, and applies and biases the molten glass against the walls and the bottom of the mould, shaping the bottle 1. In order to achieve the proper feeding of the molten glass into the deep annular perimeter groove, a partial vacuum is created by suctioning the air contained in said groove from its base through suction openings connected to suction means.

[0074] The viscosity of the molten glass, its temperature, the blowing time and pressure and its cooling speed are likewise adjusted in order to control the thickness of the tubular walls 10 of the receptacle and of the bottom wall 14. The greater the viscosity of the molten glass and the more slowly its cooling takes place, the more glass will flow to the base and the thicker the bottom wall 14 will be.