WO2025025040A1

WO2025025040A1 - Container for automatically charging contents

Info

Publication number: WO2025025040A1
Application number: PCT/CN2023/110162
Authority: WO
Inventors: Jinseok Kim; Junwen Wang; Xuehua MO
Original assignee: LOreal SA
Current assignee: LOreal SA
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2025-02-06
Anticipated expiration: 2026-01-31
Also published as: FR3151843A3; FR3151843B3

Abstract

A container (1000) for automatically charging contents in the form of a liquid or gel, wherein the container (1000) includes: a bottle (6) for containing the contents, wherein the bottle (6) includes a neck (5); and a dispenser (100) arranged onto the neck (5) for dispensing the contents from the bottle (6). The dispenser (100) includes: a rotatable housing (3) which is rotated by a user, and the rotatable housing (3) includes internal threads (35) for threading onto the neck (5) of the bottle (6), wherein the rotatable housing (3) includes a dropper tube (300) for drawing the contents from the bottle (6); a button (1) coaxial with the rotatable housing (3), wherein the button (1) is arranged inside the rotatable housing (3) so as to be axially but not circumferentially moveable relative to the rotatable housing (3); and an elastic component (2) including a chamber (22), wherein the elastic component (2) is arranged between the rotatable housing (3) and the button (1), and wherein an inner lumen (301) of the dropper tube (300) is fluidly connected to the chamber (22) of the elastic component (2); wherein the elastic component (2) is compressed when the button (1) moves axially downward or the rotatable housing (3) moves axially upward to establish positive pressure in the chamber (22), and the compressed elastic component (2) will push the button (1) upward when it recovers to establish negative pressure in the chamber (22).

Description

CONTAINER FOR AUTOMATICALLY CHARGING CONTENTS

FIELD OF THE INVENTION

The invention relates generally to a container for automatically charging and dispensing contents in the form of a liquid or gel.

BACKGROUND

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The proposal of eco-responsible and environmentally friendly solutions which are designed and developed considering environmental issues is becoming a major goal in an effort to meet global challenges.

It is therefore essential to design more sustainable products that reduce the amount of materials used, replace existing materials with greener materials and use recyclable materials in order to reduce the carbon footprint of the products.

Various containers are currently available for containing, preserving and dispensing cosmetic liquids.

One type of a container has a dispenser. The dispenser, in particular in the field of cosmetics or pharmacy, is intended to dispense products such as liquids, creams, gels, and other viscous products. The dispenser generally comprises a dispensing device such as a dropper. The dispensing device is fixed to the neck of a container, and serves to withdraw the product contained in the container by means of a dip tube.

One type of the dispensers is a dropper. The dropper is fixed in the neck of a container and has a rubber bulb at the top. In one type of such dispensers, the rubber bulb extends through the neck of the container and is exposed. In this case, the exposed rubber bulb can be accidentally squeezed, and the rubber is prone to quick aging when exposed. Moreover, this type of container is not aesthetically pleasing. For cosmetics, aesthetics are an important factor to consider when consumers face many choices. There is another type of container where the rubber bulb is positioned below a button and can be compressed by pressing the button. However, using both types of containers still does not guarantee the precise amount of cosmetic liquid with each use because the pressure applied by the user may vary, and careless users may even squeeze the rubber bulb or press the button before the dispenser is fully attached to the container. This precise dispensing of the liquid is particularly desirable for expensive cosmetic liquids.

It may be appreciated that there continues to be a need for a more sustainable container for automatically charging contents in the form of a liquid or gel, in which less components are used, and no metal spring or butyl rubber is used, and a precise amount of the contents with each use is guaranteed in an automatically way, and in this respect, the present invention substantially fulfills this need.

SUMMARY

An object of the present invention is to provide a more sustainable container for automatically charging contents in the form of a liquid or gel, in which less components are used, and no metal spring or butyl rubber is used, and a precise amount of the contents with each use is guaranteed in an automatically way.

According to one advantageous embodiment, the invention relates to a container for automatically charging contents in the form of a liquid or gel, wherein the container includes:

a bottle for containing the contents, wherein the bottle includes a neck; and

a dispenser arranged onto the neck for dispensing the contents from the bottle, wherein the dispenser includes:

- a rotatable housing which is rotated by a user, and the rotatable housing includes internal threads for threading onto the neck of the bottle, wherein the rotatable housing includes a dropper tube for drawing the contents from the bottle;

- a button coaxial with the rotatable housing, wherein the button is arranged inside the rotatable housing so as to be axially but not circumferentially moveable relative to the rotatable housing; and

- an elastic component including a chamber, wherein the elastic component is arranged between the rotatable housing and the button, and wherein an inner lumen of the dropper tube is fluidly connected to the chamber of the elastic component;

wherein the elastic component is compressed when the button moves axially downward or the rotatable housing moves axially upward to establish positive pressure in the chamber, and the compressed elastic component will push the button upward when it recovers to establish negative pressure in the chamber.

In one aspect of the present application, during the change of a fully compressed state to a fully decompressed state for the elastic component, afixed volume of contents is drawn into the dropper tube.

In another aspect of the present application, the button is configured to form a snap fit with the neck of the bottle.

In another aspect of the present application, the button includes at least two elastic arm portions that axially extend downward, and the neck includes a ring on a mouth thereof, and the at least two elastic arm portions are configured to be snap fit with the ring.

In another aspect of the present application, the elastic arm portions are symmetrically or diagonally arranged.

In another aspect of the present application, at a lower end of the elastic arm portion, an inner wall portion continues axially downward, and the inner wall portion includes a holding bar that extends radially inward from the inner peripheral surface, and the holding bar is configured to be snap fit with the ring.

In another aspect of the present application, a stopper portion extends radially outward from the elastic arm portion, and an outer wall portion extends axially downward from the stopper portion, and the outer wall portion is configured to be prevented from rotating relative to the inner peripheral surface of the rotatable housing.

In another aspect of the present application, a step portion is formed on the inner peripheral surface of the rotatable housing, and the stopper portion and the step portion are configured to limit the axial moving range of the button relative to the rotatable housing.

In another aspect of the present application, the rotatable housing includes a rotation body to be rotated by the user and a horizontal plate connecting the rotation body and the dropper tube, and openings are arranged on the horizontal plate for receiving the elastic arm portions.

In another aspect of the present application, the number and position of the openings corresponds to the number and position of the elastic arm portions after the elastic arm portions are inserted into the corresponding openings.

In another aspect of the present application, the container further includes a flexible plug which is fixed to a free end of the dropper tube.

In another aspect of the present application, the flexible plug has a groove-ring design.

In another aspect of the present application, the elastic component includes an open bottom, and the open bottom is sealingly connected to the dropper tube.

In another aspect of the present application, the elastic component is a plastic spring.

In another aspect of the present application, the elastic component is a plastic corrugated tube, a rubber bulb or a corrugated rubber bulb.

According to another advantageous embodiment, the invention relates to a container for charging contents in the form of a liquid or gel, wherein the container includes:

a bottle for containing the contents, wherein the bottle includes a neck; and

a dispenser arranged onto the neck for dispensing the contents from the bottle, wherein the dispenser includes a dropper for aspirating the contents in the container via a dropper tube,

wherein the container further includes a flexible plug which is fixed to a free end of the dropper tube, and preferably the flexible plug has a groove- ring design.

Thanks to the container according to the present application, less components are used, and no metal spring or butyl rubber is used, and a precise amount of the contents with each use is guaranteed in an automatically way, and the container is more sustainable.

Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

BRIEF DESCRIPTION OF THE FIGURES

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.

FIG. 1 shows side views of a container including a dispenser and a bottle according to one embodiment of the present invention, wherein in fig. 1a,the dispenser is fully engaged with the neck of the bottle, and in fig. 1b, the dispenser is loosened from the neck of the bottle but an elastic component is in a compressed state, and in fig. 1c, the dispenser is fully disengaged with the neck of the bottle and the elastic component is in a decompressed state.

FIG. 2 shows an exploded view of the container including the dispenser according to one embodiment of the present invention.

FIG. 3 shows an exploded view of a button and a rotatable housing of the dispenser according to one embodiment of the present invention.

FIG. 4 shows cross-sectional views of the container including the dispenser according to one embodiment of the present invention in which the dispenser is in a fully engaged state corresponding to fig. 1a, wherein fig. 4a is a cross-sectional view taken in the XZ plane so as to more clearly show the engagement between the rotatable housing and the neck of the bottle, and figure 4b is a cross-sectional view taken in the YZ plane so as to more clearly show the snap fit between the button and the neck of the bottle.

FIG. 5 shows a cross-sectional view of the dispenser according to one embodiment of the present invention in which the dispenser is in the state corresponding to fig. 1b, and fig. 5 is taken in the YZ plane.

FIG. 6 shows a cross-sectional view of the dispenser according to one embodiment of the present invention in which the dispenser is in the state corresponding to fig. 1c, and fig. 6 is taken in the YZ plane.

FIG. 7 shows a semi-sectional perspective view of the container including the dispenser according to one embodiment of the present invention in which the dispenser is in the state corresponding to fig. 1b, and it shows more clearly how the elastic component is kept in the compressed state.

FIG. 8 shows a cross-sectional view of the container including the dispenser according to another embodiment of the present invention in which the dispenser includes a dropper for aspirating the contents in the container via a dropper tube, and a flexible plug is fixed to a free end of the dropper tube.

DETAILED DESCRIPTION

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.

The following detailed description of the present invention refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be implemented. These embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention. It should be understood that various embodiments of the present invention are different from each other, but need not be mutually exclusive.

With respect to the terms used in the present invention, general terms that are currently and widely used are selected in consideration of functions of the present invention. However, the meanings of the terms may be changed according to intention of those skilled in the art, a judicial precedent, emergence of a new technology, and the like. In addition, in certain cases, a term may be selected at discretion of the applicant. In such cases, the meaning of the term will be described in detail at the corresponding part in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the entire descriptions provided herein without being simply limited to the names of terms.

In the present disclosure, when some part “includes” some elements, unless explicitly described to the contrary, it means that other elements may be further included but not excluded.

Hereinafter, a container for automatically charging contents in the form of a liquid or gel according to one or more embodiments of the present invention will be described with reference to FIGS. 1 to 7.

Figures 1 and 2 illustrate a container 1000 including a dispenser 100 according to one embodiment of the present invention in side views and an exploded view respectively. A XYZ coordinate system is schematically shown in Figure 1.

As shown in Figures 1 and 2, the container 1000 comprises a bottle 6 for containing cosmetic liquids and a dispenser 100 for dispensing the liquids. As shown in Figure 2, the dispenser 100 includes a button 1, an elastic component 2 and a rotatable housing 3 including a dropper tube 300, which are substantially coaxially mounted. Optionally, the dispenser 100 may also include a flexible plug 4 which is fixed to a free end of the dropper tube 300. In one example, the dispenser 100 includes or acts like a dropper. In the embodiment of the present invention, the bottle 6 is shown separate from a bottle neck 5, but those skilled in the art would easily understand that the bottle 6 can be formed as one piece with a bottle neck 5. In other words, the neck 5 can be formed as one portion of the bottle 6, which is not shown in the figures. In this way, the number of parts of the container 1000 according to the embodiments of the present invention is further reduced, and the structure is further simplified.

FIG. 1 shows side views of a container 1000 including a dispenser 100 according to one embodiment of the present invention, wherein in fig. 1a, the dispenser 100 is fully engaged with the neck 5 of the bottle 6 and an elastic component 2 is in a decompressed state, and in fig. 1b, the dispenser 100 is loosened from the neck of the bottle but the elastic component 2 is in a compressed state, and in fig. 1c, the dispenser 100 is fully disengaged with the neck 5 of the bottle 6 and the elastic component 2 is in a decompressed state. FIG. 3 shows an exploded view of a button 1 and a rotatable housing 3 of the dispenser 100 according to one embodiment of the present invention. FIG. 4 shows cross-sectional views of the container 1000 including the dispenser 100 according to one embodiment of the present invention in which the dispenser 100 is in a fully engaged state corresponding to fig. 1a, wherein fig. 4a is a cross-sectional view taken in the XZ plane so as to more clearly show the engagement between the rotatable housing 3 and the neck 5 of the bottle 6, and figure 4b is a cross-sectional view taken in the YZ plane so as to more clearly show the snap fit between the button 1 and the neck 5 of the bottle 6.

As shown in figs. 1 to 4, the rotatable housing 3 is cylindrical and has internal threads 35. The neck 5 of the bottle 6 is also cylindrical and has corresponding external threads 51. Therefore, the rotatable housing 3 can be connected to the bottle 6 by threading, so that the dispenser 100 can be engaged or disengaged with the bottle 6.

The button 1 includes an axially extending collar 11 that extends downward, and at least two elastic arm portions 12 that extend axially from the collar 11. The elastic arm portions 12 are preferably symmetrically or diagonally arranged on the collar 11. At the lower end of the elastic arm portions 12, there is an inner wall portion 14 that continues axially downward from the elastic arm portions 12. A stopper portion 15 extends radially outward from the elastic arm portions 12, and an outer wall portion 13 that extends axially downward from the stopper portion 15. The outer wall portion 13 is configured to be prevented from rotating relative to the inner peripheral surface of the rotatable housing 3. The inner wall portion 14 includes a holding bar 141 that extends radially inward from the inner peripheral surface.

As shown in fig. 4a, the neck 5 of the bottle 6 includes a mouth 52 which has an outer diameter smaller than that of the external threads 51. The mouth 52 further includes a ring 521 that extends radially outward from the outer peripheral surface thereof. The holding bar 141 is configured to slide over the ring 521 so as to fit in a snap-in manner.

The rotatable housing 3 includes a rotation body 31, a dropper tube 300 disposed in the center, and a horizontal plate 32 connecting the rotation body 31 and the dropper tube 300. In the horizontal plate 32, there are at least two openings 33 for receiving the elastic arm portions 12. The number of the openings 33 corresponds to the number of the elastic arm portions 12. In one example, in the inner peripheral surface corresponding to the openings 32, the internal threads 35 are discontinued, so that the openings 33 are used as stoppers to prevent the elastic arm portions 12 and thus the button 1 from rotating in a circumferential direction relative to the rotatable housing 3.

FIG. 5 shows a cross-sectional view of the dispenser 100 according to one embodiment of the present invention in which the dispenser 100 is in the state corresponding to fig. 1b, and fig. 5 is taken in the YZ plane. FIG. 6 shows a cross-sectional view of the dispenser 100 according to one embodiment of the present invention in which the dispenser 100 is in the state corresponding to fig. 1c, and fig. 6 is taken in the YZ plane. FIG. 7 shows a semi-sectional perspective view of the container 1000 including the dispenser 100 according to one embodiment of the present invention in which the dispenser 100 is in the state corresponding to fig. 1b, and it shows more clearly how the elastic component 2 is kept in the compressed state.

Moreover, in the inner peripheral surface of the rotation body 31 corresponding to the openings 32, a step portion 34 is formed. After the button 1 is inserted inside the rotatable housing 3 by inserting the elastic arm portions 12 through the openings 33, the stopper portion 15 of the button 1 will pass the step portion 34 due to the elastic property of the elastic arm portions 12. Then the stopper portion 15 and the step portion 34 are used as stoppers to limit the axial movement of the button 1 relative to the rotatable housing 3, as shown in figs. 5 and 7.

In one example, the dispenser 100 also includes a flexible plug 4 which is fixed to a free end of the dropper tube 300. In this way, the flexible plug 4 forms as an inlet of the dropper tube 300. In one example, the dropper tube 300 is relatively rigid, and the flexible plug 4 is made of softer material so that the inlet of the dropper tube 300 is flexible. In one example, the flexible plug 4 has a groove-ring design 41 so that it can bend when it touches the bottom of the bottle 6, as schematically shown in fig. 4b.

The elastic component 2 is arranged between the button 1 and the rotatable housing 3. The elastic component 2 is made of elastic material and can be compressed and decompressed. In the example as shown in fig. 2, the elastic component 2 is a plastic spring. In one example, the elastic component 2 is a plastic corrugated tube. The elastic component 2 has a chamber 22 and arranged below the button 1. In particular, a closed top end 21 of the elastic component 2 is connected to the button 1. The open bottom 23 of the elastic component 2 is sealed against the rotatable housing 3, as shown in fig. 7. In one example, the dropper tube 300 is sealingly connected to the elastic component 2, and an inner lumen 301 of the dropper tube 300 is fluidly connected to the chamber 22 of the elastic component 2.

The operation of the dispenser 100 is described below.

First of all, the dispenser 100 is assembled. The elastic component 2 is arranged between the button 1 and the rotatable housing 3. Then, overcoming the resilience force of elastic component 2, the button 1 is pushed inside the rotatable housing 3 by inserting the elastic arm portions 12 through the openings 33. During the pushing of the button 1, the stopper portion 15 of the button 1 will pass the step portion 34 due to the elastic property of the elastic arm portions 12. After the release of the button 1, the elastic component 2 will recover or bounce back and lift the button 1 up, as schematically shown in figs. 1a and 1c. At this time as shown in figs. 1a and 1c, the elastic component 2 is in a decompressed state. In this way, the dispenser 100 is formed as one assembly, and the button 1 can only axially move relative to the rotatable housing 3.

Then, the dispenser 100 is fixed to the bottle 6 by the user rotating clockwise the rotatable housing 3. Typically, the dispenser 100 is fully engaged with the bottle 6 in a clockwise direction by means of the threading between the internal threads 35 of the rotatable housing 3 and the external threads 51 on the neck 5 of the bottle 6. At this point, the dispenser 100 is in the fully engaged state as shown in Figures 1a and 4. In the fully engaged state as shown in fig. 1a, the holding bar 141 is fit with the ring 521 in a snap-in manner. In other words, the holding bar 141 is engaged with the ring 521 so that the button 1 is locked to the neck 5 of the bottle 6.

Next, when the user starts to rotate the rotatable housing 3 counterclockwise from the fully engaged state as shown in fig. 1a, the rotatable housing 3 will gradually axially rotate away from the neck 5 of the bottle 6, but the button 1 keeps being locked to the neck 5 of the bottle 6 by means of the snap fit between the holding bar 141 and the ring 521. In other words, during the counterclockwise rotation of the rotatable housing 3, the button 1 will rotates together with the rotatable housing 3 but the button 1 will not axially move relative to the neck 5 of the bottle 6. Therefore, during the counterclockwise rotation of the rotatable housing 3, the rotatable housing 3 will axially move up and the button 1 will not axially move, and thus the elastic component 2 is compressed, and a positive pressure will be established in the chamber 22 of the elastic component 2, and air or liquid present in the chamber 22 of the elastic component 2 will be expelled or squeezed out.

After the counterclockwise rotation of the rotatable housing 3, the rotatable housing 3 is disengaged with the neck 5 of the bottle 6 by the disengagement between the internal threads 35 of the rotatable housing 3 and the external threads 51 of the bottle 6, and the dispenser 100 is loosened from the neck 5 of the bottle 6, but at this time, the button 1 still keeps being locked to the neck 5 of the bottle 6 by means of the snap fit between the holding bar 141 and the ring 521, as schematically shown in figs. 5 and 7. In this situation, the elastic component 2 is compressed to the maximum extent, and the most volume of air or liquid present in the chamber 22 of the elastic component 2 will be expelled or squeezed out.

In the next, a user will lift up the rotatable housing 3 with a slightly large force, and the holding bar 141 of the button 1 will slide over the ring 521 again by the force, and thus the button 1 will no longer being locked to the neck 5 of the bottle 6 and will leave the same. At this time, the compressed elastic component 2 will recover or bounce back, as shown in fig. 6, and during this process, as the elastic component 2 gradually expands, its chamber 22 expands and establishes a negative pressure in it and in the connected dropper tube 300. This negative pressure allows the contents, such as cosmetic liquid, of the bottle 6 to be drawn into the dropper tube 300 via the inlet at the bottom of the dropper tube 300. In this way, the elastic component 2 acts like a pump for pumping or sucking the contents in, to some extent.

After the end of the expansion of the elastic component 2, the elastic component 2 returns to the full decompressed state, and a fixed volume of cosmetic liquid is drawn into the dropper tube 300. At this time, as schematically shown in fig. 6, the dispenser 100 can be completely removed from the bottle 6, with the fixed volume of cosmetic liquid drawn into the dropper tube 300. After the dispenser 100 is completely removed from the bottle 6, the user can press the button 1 to extrude the cosmetic liquid from the dropper tube 300 for use. At this time, the elastic component 2 is compressed, and the elastic component 2 acts like a pump for pumping the contents out, to some extent.

In this way, there is provided a container 1000 including a dispenser 100 with a simple structure to achieve convenient access and precise dispensing of the contents in the bottle.

In the above process, the user can hold the bottle 6 with one hand and rotate the rotatable housing 3 of the dispenser 100 with the other hand to operate it. Alternatively, the user can use only the thumb and index finger to grip and rotate the rotatable housing 3 of the dispenser 100 while using the other fingers to grip the bottle 6 in the palm of the hand to finish the operation. In this way, when the user rotates the rotatable housing 3, there would be directly transfer force for compressing and opening the dispenser 100.

In the above embodiments, the elastic component 2 is shown as a plastic corrugated tube. However, it should be understood that the elastic component can take other forms as long as it establishes a positive pressure in its chamber 22 when being compressed and can push the button upward and establish a negative pressure in the chamber when recovered or decompressed. For example, the elastic component 2 can be a rubber bulb or a corrugated rubber bulb.

In the example as shown in fig. 8, there is disclosed a container 1000’ for charging contents in the form of a liquid or gel, wherein the container 1000’ includes: a bottle 6’ for containing the contents, wherein the bottle 6’ includes a neck; and a dispenser 2’ arranged onto the neck for dispensing the contents from the bottle 6’, wherein the dispenser 2’ includes a dropper 21’ for aspirating the contents in the container via a dropper tube. In the example, the container 1000’ further includes a flexible plug 4’ which is fixed to a free end of the dropper tube 300’, and preferably the flexible plug 4’ has a groove-ring design. In this way, after dismantling the dispenser 2’, due to the flexible plug 4’ being extensible, a user can lengthen the dropper tube 300’ to allow the flexible plug 4’ to reach the bottom of the bottle 6’. As a result, the contents which remain at the bottom or on the internal walls of the bottle 6’ can be recovered, because the dropper tube 300’ is able to reach these areas of the bottle 6’. By means of the container including the flexible plug according to the embodiment of the present application, the product or content which can be relatively expensive will be less wasted. Moreover, the flexible plug can be easily adapted to existing dispensers or containers and do not require major modification of the dispensers or containers.

In the present application, the number of components in the container or the dispenser according to the embodiments of the present invention is further reduced, and the structure is further simplified. Thus, less components are used for sustainability. Moreover, no metal spring is used and no butyl rubber is used. In other words, the container according to the embodiments of the present invention is made from plastics, and a lightweight concept is realized for the container according to the embodiments of the present invention.

Moreover, the dispenser will automatically charge a precise volume of cosmetic liquid during operation, thus a precise amount of cosmetic liquid with each use is guaranteed.

Aspects of the present disclosure have been described in detail with reference to the illustrated embodiments; those skilled in the art will recognize, however, that many modifications may be made thereto without departing from the scope of the present disclosure. The present disclosure is not limited to the precise construction and compositions disclosed herein; any and all modifications, changes, and variations apparent from the foregoing descriptions are within the scope of the disclosure as defined by the appended claims. Moreover, the present concepts expressly include any and all combinations and sub combinations of the preceding elements and features.

LIST OF REFERENCE NUMBERS

1 button

2 elastic component

3 rotatable housing

4 flexible plug

5 neck

6 bottle

11 axially extending collar

12 elastic arm portion

13 outer wall portion

14 inner wall portion

15 stopper portion

21 closed top end

22 chamber

23 open bottom

31 rotation body

32 horizontal plate

33 opening

34 step portion

35 internal thread

41 groove-ring design

51 external thread

52 mouth

141 holding bar

300 dropper tube

301 inner lumen

521 ring

Claims

A container for automatically charging contents in the form of a liquid or gel, wherein the container includes:

a bottle for containing the contents, wherein the bottle includes a neck; and

a dispenser arranged onto the neck for dispensing the contents from the bottle, wherein the dispenser includes:

- a rotatable housing which is rotated by a user, and the rotatable housing includes internal threads for threading onto the neck of the bottle, wherein the rotatable housing includes a dropper tube for drawing the contents from the bottle;

- a button coaxial with the rotatable housing, wherein the button is arranged inside the rotatable housing so as to be axially but not circumferentially moveable relative to the rotatable housing; and

- an elastic component including a chamber, wherein the elastic component is arranged between the rotatable housing and the button, and wherein an inner lumen of the dropper tube is fluidly connected to the chamber of the elastic component;

wherein the elastic component is compressed when the button moves axially downward or the rotatable housing moves axially upward to establish positive pressure in the chamber, and the compressed elastic component will push the button upward when it recovers to establish negative pressure in the chamber.
The container according to claim 1, during the elastic component changing from a fully compressed state to a fully decompressed state, a fixed volume of contents is drawn into the dropper tube.
The container according to claim 1 or 2, wherein the button is configured to form a snap fit with the neck of the bottle.
The container according to claim 1 or 2, wherein the button includes at least two elastic arm portions that axially extend downward, and the neck includes a ring on a mouth thereof, and the at least two elastic arm portions are configured to be snap fit with the ring.
The container according to claim 4, wherein the elastic arm portions are symmetrically or diagonally arranged.
The container according to claim 4, wherein at a lower end of the elastic arm portion, an inner wall portion continues axially downward, and the inner wall portion includes a holding bar that extends radially inward from the inner peripheral surface thereof, and the holding bar is configured to be snap fit with the ring.
The container according to claim 4, wherein a stopper portion extends radially outward from the elastic arm portion, and an outer wall portion extends axially downward from the stopper portion, and the outer wall portion is configured to be prevented from rotating relative to the inner peripheral surface of the rotatable housing.
The container according to claim 7, wherein a step portion is formed on the inner peripheral surface of the rotatable housing, and the stopper portion and the step portion are configured to limit the axial moving range of the button relative to the rotatable housing.
The container according to claim 4, wherein the rotatable housing includes a rotation body to be rotated by the user and a horizontal plate connecting the rotation body and the dropper tube, and openings are arranged on the horizontal plate for receiving the elastic arm portions.
The container according to claim 9, wherein the number and position of the openings corresponds to the number and position of the elastic arm portions after the elastic arm portions are inserted into the corresponding openings.
The container according to anyone of claims 1 to 10, further including a flexible plug which is fixed to a free end of the dropper tube, and preferably the flexible plug has a groove-ring design.
The container according to anyone of claims 1 to 11, wherein the elastic component includes an open bottom, and the open bottom is sealingly connected to the dropper tube.
The container according to anyone of claims 1 to 12, wherein the elastic component is a plastic spring.
The container according to claim 13, wherein the elastic component is a plastic corrugated tube, a rubber bulb or a corrugated rubber bulb.
A container for charging contents in the form of a liquid or gel, wherein the container includes:

a bottle for containing the contents, wherein the bottle includes a neck; and

a dispenser arranged onto the neck for dispensing the contents from the bottle, wherein the dispenser includes a dropper for aspirating the contents in the container via a dropper tube,

wherein the container further includes a flexible plug which is fixed to a free end of the dropper tube, and preferably the flexible plug has a groove-ring design.