Closure cap for a substantially cylindrical vessel

Abstract

The invention relates to a closure cap for a substantially cylindrical vessel, with a lateral surface, a closed end and an open end, and with a tear-open strip having a grip tab for opening the closure cap. In order to produce closure caps which are designed such that they can be applied by machine to substantially cylindrical vessels, it is proposed within the context of the invention that the lateral surface is substantially cylindrical, at least in the area of the open end, and that the closure cap is of stackable design and has means for stacking at least two closure caps with defined spacing. The invention is based on the finding that, for cost reasons, it is useful if also closure caps for substantially cylindrical vessels can be stacked, i.e. pushed onto one another, during transport as they then take up less space. In the case of machine-applied closure caps, too, it is advantageous to stack the caps, since the machine can then collect them more easily and prior positioning of the closure cap is superfluous.

Claims

1. A closure cap for a substantially cylindrical vessel with a lid, with a lateral surface, a closed end and an open end, and with a tear-open strip having a grip tab for opening the closure cap, wherein the closure cap has a first cylindrical portion with a first diameter to be applied to the lid of the vessel which is followed by a second conical portion which itself is followed by a third cylindrical portion with a larger diameter than the first portion to surround a portion of the vessel itself, the lateral surface being substantially cylindrical at least in the area of the open end, wherein the closure cap is of stackable configuration and has means for stacking at least two closure caps with defined spacing, wherein the stacking means comprises a first bead configured as an indentation indented toward an interior of the third cylindrical portion of the closure cap, the indentation running perpendicular to the axis of the third cylindrical portion, and wherein the closure cap is applied to the substantially cylindrical vessel and the lid without being influenced by heat.

2. The closure cap according to claim 1, wherein the first bead runs around the entire circumference of the closure cap.

3. The closure cap according to claim 1, wherein the first bead runs around a portion of the circumference of the closure cap.

4. The closure cap according to claim 1, further comprising a second bead parallel to the first bead.

5. The closure cap according to claim 1, wherein the closure cap has an anti-twist means.

6. The closure cap according to claim 5, wherein the anti-twist means is configured as a form-fit connection between two closure caps.

7. The closure cap according to claim 1, wherein the closure cap has inwardly oriented knobs in the area of the open end.

8. The closure cap according to claim 1, wherein the closure cap has, in the area of the open end, inwardly oriented reinforcing beads separate from the first bead and running parallel to the axis of the closure cap.

9. The closure cap according to claim 1, wherein the closure cap has a perforation in the area of the closed end for deaerating the inside of the closure cap.

10. A closure cap for a substantially cylindrical vessel with a lid, with a lateral surface, a closed end and an open end, and with a tear-open strip having a grip tab for opening the closure cap, wherein the closure cap has a first cylindrical portion with a first diameter to be applied to the lid of the vessel which is followed by a second conical portion which itself is followed by a third cylindrical portion with a greater diameter than the first portion to surround a portion of the vessel itself, a conical shoulder being formed in consequence of this difference in diameters, the lateral surface being substantially cylindrical in the area of the open end, wherein the closure cap is of stackable configuration and the conical shoulder forms a means for stacking the closure cap with an adjacent closure cap defined spacing, wherein the adjacent closure cap rests on this conical shoulder, wherein the means for stacking further comprises a first bead configured as an indentation indented toward an interior of the third cylindrical portion of the closure cap, the indentation running perpendicular to the axis of the third cylindrical portion, and wherein the closure cap is applied to the substantially cylindrical vessel and the lid without being influenced by heat.

11. The closure cap according to claim 10, wherein a portion of the adjacent closure cap, for stacking purposes, is partially pushed onto the closure cap.

12. A substantially cylindrical vessel with a lid and being provided with a closure cap, the closure cap having a lateral surface, a closed end and an open end, and with a tear-open strip having a grip tab for opening the closure cap, wherein the closure cap has a first cylindrical portion with a first diameter being applied to the lid of the vessel followed by a second conical portion which itself is followed by a third cylindrical portion with a second diameter greater than the diameter of the first portion surrounding a portion of the vessel itself, a conical shoulder being formed in consequence of this difference in diameters, the lateral surface being substantially cylindrical in the area of the open end and wherein the closure cap is of stackable configuration and has means for stacking at least two closure caps with defined spacing, wherein the stacking means comprises a first bead configured as an indentation indented toward an interior of the third cylindrical portion of the closure cap, the indentation running perpendicular to the axis of the third cylindrical portion, and wherein the closure cap is applied to the substantially cylindrical vessel and the lid without being influenced by heat.

13. The substantially cylindrical vessel of claim 12, characterized in that the closure cap is fixed to the vessel by means of a label, the first portion of which is located on the vessel and the second portion of which is located on the closure cap, and both the closure cap and the label being destroyed when the vessel is opened.

Description

(1) The drawing in

(2) FIG. 1 shows a side view of a first closure cap according to the invention.

(3) FIG. 2 shows a side view of two stacked closure caps according to FIG. 1.

(4) FIG. 3 shows a side view of a second closure cap according to the invention.

(5) FIG. 4 shows a side view of two stacked closure caps according to FIG. 3.

(6) FIG. 5 shows a side view of a third closure cap according to the invention.

(7) As shown in FIG. 1, the closure cap 1 has a lateral surface, a closed end 2 and an open end 3, as well as a tear-open strip 4 having a grip tab 5 for opening the closure cap 1. At least part of the lateral surface is cylindrical in order to cover a substantially cylindrical vessel.

(8) The closure caps 1 may be rendered stackable in different ways, for example by slight tapering of the closure caps 1, at least in the area in which they are pushed onto one another. The taper ratio is 1:50 to 1:30, preferably 1:40. Depending on the vessel's design, it is also possible to configure a first, substantially cylindrical, portion of the closure cap 1 such that it has a smaller diameter than the other substantially cylindrical portion of the closure cap, enabling the portion with the lesser diameter to be pushed into that portion of the adjacent closure cap that has the greater diameter.

(9) The closure cap 1 shown in FIG. 1 is stackable in spite of its cylindrical shape, this being achieved here in that the closure cap 1 has a first cylindrical portion A with a diameter A and connects with a second cylindrical portion with a diameter B. A shoulder 6 is formed in consequence of this difference in diameters. The first portion A is applied to the lid of the vessel and the second portion B surrounds a portion of the vessel itself.

(10) When the closure caps 1 are stacked, the adjacent closure cap 1 rests on the shoulder 6 of the closure cap 1, as shown in FIG. 2.

(11) The closure cap 1 according to FIG. 3 has a first cylindrical portion A, which has a first diameter. This first portion of the closure cap 1 is positioned on the lid of a vessel. The first portion A connects with a second portion B, which is conical and which opens into a third, cylindrical portion C, which has a larger diameter than the first portion A. This third portion C surrounds part of the vessel itself and has a slight taper of 1:40, enabling the closure caps 1 to be pushed into each other in this portion C.

(12) This closure cap 1 is provided with means for stacking at least two closure caps with defined spacing. The means may be configured as a bead 7 disposed in the area of the closure cap's open end 3. The bead 7 runs perpendicular to the axis of the closure cap 1 and is oriented towards the interior thereof. The bead 7 may run around the full circumference of the closure cap 1 or extend only around a portion of the circumference of the closure cap 1, as is the case in FIG. 3. It is possible to provide a plurality of mutually parallel beads 7, in particular two parallel beads 7, as in FIG. 3.

(13) FIG. 4 shows two stacked closure caps 1, the second of which has been pushed as far as its first bead 7 into the first closure cap 1. The first bead 7 thus ensures that the stacked closure caps 1 are spaced apart by a defined distance.

(14) It may be advantageous for the closure cap 1 to have an anti-twist means, which may be configured, for example, as a form-fit connection between two closure caps.

(15) The closure cap 1 may also have inwardly oriented knobs 8 in the area of its open end 3. Alternatively, or in addition, the closure cap 1 may have, in the area of its open end 3, inwardly oriented beads 9 running parallel to the closure cap's axis. Both variants are shown in FIG. 3.

(16) The closure cap 1 may also have a perforation 10 in the area of its closed end for deaerating the inside of the closure cap 1.

(17) FIG. 5 shows a side view of a third closure cap according to the invention. FIG. 5 shows a closure cap being fixed to the vessel with a label. In this FIG. 5, reference 11 refers to the closure cap, reference 12 refers to the vessel, reference 13 refers to the label and reference 14 refers to the tear-open strip.