Lip balm applicator and method for manufacturing a lip balm applicator

Abstract

A new lip balm applicator comprises an upper portion and a lower portion that are interengageably connected to one another to define the applicator, and a support assembly for supporting a solidified lip balm material within the applicator. The support assembly comprises supporting ribs formed on an inner surface of the lower portion and a lower opening having a closing lid, whereby the solidified lip balm material circumvents at least part of the supporting ribs. A novel method for manufacturing the lip balm applicator comprises interengaging the upper and lower portions of the lip balm applicator and pouring a liquefied lip balm material into the lower opening until at least part of the projecting supporting ribs are covered by the liquefied balm material and solidified.

Claims

1. A lip balm applicator comprising an upper portion and a lower portion, which portions have interengageable connecting means for connecting the upper and lower portions, a solidified lip balm material, and a support assembly for supporting the solidified lip balm material within the upper portion of the applicator, wherein the support assembly comprises supporting ribs formed on an inner surface of the lower portion, which provide support for the solidified lip balm material, whereas the supporting ribs are formed projecting from the inner surface of the lower portion essentially in a direction parallel to a central axis of the lower portion, and the lower portion comprises a lower opening having a closing lid, and whereby the solidified lip balm material circumvents at least part of the projecting supporting ribs.

2. The lip balm applicator according to claim 1, wherein two or more of the supporting ribs are connected in an upper region of the lower portion by a bridging part.

3. The lip balm applicator according to claim 2, wherein the bridging part comprises a ring interconnecting the two or more supporting ribs.

4. The lip balm applicator according to claim 1, wherein the supporting ribs are connected in adjacent pairs by an arcuate bridge.

5. The lip balm applicator according to claim 1, wherein the upper portion comprises an outer spherical or ellipsoid part which is connected to an inner spherical or ellipsoid part that forms a mould and cover for the solidified lip balm material.

6. The lip balm applicator according to claim 5, wherein the outer spherical or ellipsoid part is connected to the inner spherical or ellipsoid part by a snap-fit connection.

7. The lip balm applicator according to claim 5, wherein the outer and inner spherical or ellipsoid parts are spaced apart by a gap.

8. A method for manufacturing a lip balm applicator comprising an upper portion and a lower portion, which portions have interengageable connecting means for connecting the upper and lower portions, and a support assembly for supporting a solidified balm material within the upper portion of the applicator, wherein the method comprises following steps: forming on an inner surface of the lower portion supporting ribs projecting from the inner surface essentially in a direction parallel to a central axis of the lower portion, which supporting ribs define the support assembly; providing the lower portion with a lower opening, which can be closed by a closing lid; assembling the upper portion and the lower portion by interengaging the connecting means; turning the assembled lip balm applicator upside down and thereafter pouring a liquified lip balm material into the opening until at least part of the projecting supporting ribs are covered by the liquified balm material; and then allowing the lip balm material to cool down in order to solidify; and closing the opening by the closing lid.

9. The method according to claim 8, wherein two or more of the supporting ribs are formed to be connected in an upper region of the lower portion by a bridging part wherein at least the bridging part is covered by the liquified lip balm material.

10. The method according to claim 9, wherein the bridging part comprises a ring interconnecting the supporting ribs.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) In the following, the invention is described in greater detail, by way of example, with reference to the accompanying drawings.

(2) FIG. 1 shows a lip balm applicator in perspective view in closed condition,

(3) FIG. 2 shows the upper portion of the lip balm applicator,

(4) FIG. 3 shows the lower portion of the lip balm applicator,

(5) FIG. 4 shows a filling cup in a perspective view from above,

(6) FIG. 5 shows the filling cup in a perspective view from below,

(7) FIG. 6 shows the closure part of the lip balm applicator, and

(8) FIGS. 7A-7C show three cross-sections through the lip balm applicator in three different production stages.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(9) In the figures, the same reference numbers are used for the same elements.

(10) FIG. 1 shows a lip balm applicator 1 with an upper portion 2, a lower portion 3 and a closure lid 4. The lip balm applicator 1 has a rotational symmetrical shape. As can be seen from this figure, the upper portion 2 has a half-ellipsoid shape, like the top of an egg. The lower portion 3 has partly a frusto-spherical shape which is cut-off at the lower end.

(11) In FIG. 2 the upper portion 2 is depicted in perspective view from below. At the lower end 5 a ring 6 is provided with an inner thread 7 and adjacent to the ring 6 a ring-shaped connecting means 8 with a plurality of inner protrusions 9 is provided. The inner protrusions 9 are provided at a distance to each other by the width of an individual protrusion. The inner thread 7 has an incision 10, which is used for a click connection with the lower portion 3 (see below).

(12) In FIG. 3 the lower portion 3 is shown in a perspective view from above. At the outer upper end 11 an outer thread 12 is provided, which is commensurate to the inner thread 7. Thus, the inner thread 7 and the outer thread 12 provided an interengageable connecting means for the upper portion 2 and the lower portion 3. At the inner wall 13 of the lower portion 3 supporting ribs 14 are provided, which are projecting to the inside and are directed parallel to the central axis A of the lip balm applicator 1 and thus of the lower portion 3 (see FIG. 7A). Adjacent projecting ribs 14 in pairs are connected at the upper end 11 by a curved narrow bridge 15. There are four pair of bridged projecting ribs 14 which face each other. The lower end 16 of the lower portion 3 has a circular opening 17. All projecting ribs 14 may also be interconnected by a ring or the like. The thread 12 shows a wedge-shaped stop element 18 and a protruding click element 19, which engages with the incision 10 of the upper portion 2, when the upper portion 2 and the lower portion 3 are interengaged by a screwing action. The upper portion 2 and the lower portion 3 can easily be disengaged by a counter-screwing action whereas there is a little friction between the protruding click element 19 and the incision 10.

(13) FIGS. 4 and 5 show a filling cup 20 in perspective view from above and from below respectively. The filling cup 20 has an ellipsoidal shape and is provided with a broader outer rim 21, on which an upper ring 22 with outer protrusions 23, which are distributed over the ring 22 with a larger width of about ten times the width of an individual protrusion 23. As immediately can be seen, the protrusions 9 and 23 have the same shape and thus the same width.

(14) FIG. 6 shows the closure lid 4, which is shaped as a flat circular disc 26 with an upper ring-shaped rim 27, which is provided with an inner step 28 towards the outer edge 29 of the disc 26. This closure lid 4 is provided for closing the opening 17 of the lower portion 3.

(15) In FIGS. 7A to 7C a cross-section of the lip balm applicator 1 are shown. FIG. 7A shows the central axis A of the lip balm applicator 1. In FIG. 7A the lip balm applicator 1 is empty, in FIG. 7B the lip balm applicator 1 is filled with a lip balm 30 which partly circumvents the projecting ribs 14 and the curved narrow bridge 15. In FIG. 7C the lip balm applicator 1 closed with the closure lid 4 is ready for use.

(16) In order to provide a lip balm applicator 1 ready for use, the upper portion 2, the filling cup 20 and the lower cup 3 are assembled, i.e. the filling cup 20 is snap fitted into the upper portion 2 by interengaging the outer protrusions 23 with the inner protrusions 9, i.e. one outer protrusion 23 is pinched between two adjacent inner protrusions 9. In this manner the filling cup 20 is part of the upper portion 2, whereas the filling cup 20 and the upper portion 2 are spaced apart by a gap. Thereupon, the upper portion 2 is interengaged with the lower portion 3 by the inner thread 7 and and the outer thread 12. The present invention is not limited in this regard, as any other locking mechanism as bayonet connection or the like can be used to frictionally connect the upper portion 2 with the lower portion 3.

(17) The assembled lip balm applicator 1 with the open opening 17 is turned upside down and filled with hot liquified lip balm material 30 until at least the curved narrow bridges 15 of the lower portion 3 are covered by the liquified lip balm. After that the lip balm material 30 is allowed to cool down in order to solidify. The open lip balm applicator 1 is then closed by the closure lid 4.

(18) While the present invention has been illustrated and described with respect to a particular embodiment thereof, it should be appreciated by those of ordinary skill in the art that various modifications to this invention may be made without departing from the spirit and scope of the present.