FORM - 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10 and rule 13)
Title:
CLOSURE WITH CHILD-RESISTANT CAP ASSEMBLY FOR CONTAINERS
Applicant: An INDIAN company of:
PAREKHPLAST INDIA LIMITED,
101 SHIVAI PLAZA,
MAROL INDUSTRIAL CO-OP. SOCIETY LTD.,
ANDHERI (EAST), MUMBAI-400059.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF INVENTION
The present invention concerns a closure with cap-assembly for containers. In particular, the present invention relates to a closure with cap-assembly having a child-resistant feature for containers. More particularly, the present invention relates to a closure with child-resistant cap-assembly for containers, which allows easy opening and closing of the containers as well as easy access to senior citizens.
BACKGROUND OF THE INVENTION
There are many substances, drugs, chemicals, and medicines, which are particularly harmful to children, if inadvertently handled by them. It is necessary to prevent the unintended access to such substances, drugs, chemicals, and medicines from children. This is normally achieved by different types of child-resistant cap on the containers of such substances, drugs, chemicals, and medicines.
However, such packages of such substances, drugs, chemicals, and medicines should be easily accessible to and/or openable by adults and/or senior citizens. These packages should not be difficult to open/access by citizens, otherwise they will have to over-exert themselves to open/access such child-resistant package/closure/cap assemblies and to reclose the same. It is observed that in the existing child resistance caps with top engagement profile, there is a problem of over-tightening thereof and often, there are difficulties experienced in opening at same.
Therefore, there is an existing need for a cap assembly which enables a child-resistant feature while opening of cap and offers an easy access and opening and reclosing thereof, particularly for senior citizens.

OBJECTS OF THE INVENTION
Some of the objects of the present invention - satisfied by at least one embodiment of the present invention - are as follows:
An object of the present invention is to provide a closure device with a child-resistance closure assembly but easily accessible by senior-citizen.
Another object of the present invention is to provide a simple cap assembly which is difficult to be opened by a child however easy to be opened by a senior-citizen.
Still another object of the present invention is to provide a closure device which prevents opening thereof by a child but allows senior-citizen to easily open the same.
Yet another object of the present invention is to provide a simple cap assembly which prevents opening by children but easily openable by senior-citizen.
These and other objects and advantages of the present invention will become more apparent from the following description, when read with the accompanying figures of drawing, which are however not intended to limit the scope of the present invention in any way.
DESCRIPTION OF THE PRESENT INVENTION
The present invention relates to a closure device for a container and a closure or cap-assembly comprising an outer and inner cap each. The outer shell thereof having a base with a peripheral skirt and a plurality of internal lugs with round tip on said base adjacent to said skirt, and a plastic inner shell disposed within said outer shell and having a base with a peripheral skirt, at least one

internal thread segment on said peripheral skirt and a plurality of external lugs on said base.
Each of the lugs includes a portion extending radially inwardly along an undersurface of the base of the outer shell for engaging the external lugs on the inner shell, extending axially along an inner surface of the peripheral skirt of the outer shell for slidably engaging the inner shell due to the slanting angle of the inner shell teeth with the outer shell lugs and aligning the inner shell within the outer shell.
It is an aspect of the present invention to provide inner cap lugs along an outer cap periphery of the inner cap and outer cap lugs along an inside of the inner cap. it is further aspect to provide that when a pressure exerted on top of the outer cap, the guiding "L" shaped marks on outer cap base are guide the outer cap to fix with inner cap and the lugs on inner and outer cap are get engaged by the axiai force and when a radial force applied along circumference of the outer cap the cap will get tighten and when it rotates in counterclockwise with same fashion the cap will unscrew from the container.
When the axial pressure released the engagement will break between the inner and outer lugs; due to which the outer cap will slide freely on the inner cap because of the less contact angle between the outer lugs which has round shape tip and the inner lugs with a slanting tip to prevent the contact angel of engagement.
The following salient points are considered as the unique selling proposition (USP) for the cap-functionality:
1. Side notch angle on inner cap gives positive engagement in push condition.

2. Top protrusion angle on inner cap gives easy slip for child safe in normal Non push condition.
3. Angle on Outer cap bottom rim for easy cap assembly.
4. Angle on inner cap top rim for easy cap assembly.
5. Equal distance special L half round designed profile and spacer block design on Outer for equal Opening force.
6. Equal distance spacer blocks design on Outer cap for equal opening force.
7. Inner cap bottom ring rim area is guided with outer cap for proper guided rotation.
8. Wadding facility for seal proof.
9. 75 knurling design on outer cap for easy capping on container.
10. Thread SP400 world-wide standard to fix on any SP400 neck PET/HDPE container.
SUMMARY OF INVENTION
In accordance with the present invention, there is provided a closure with child-resistant cap assembly for containers, the cap assembly comprising:
- an outer cap having a peripheral skirt with serrations depending from the base thereof;
- an inner cap having a peripheral skirt depending from the base thereof; and
- a wad pressed inside the inner cap;
wherein the cap-assembly comprises a child-resistant feature to prevent any child from opening/unscrewing the cap-assembly from the opening of a container but to enable an adult or senior citizen to easily open/unscrew the

cap-assembly from or close/screw the cap-assembly from the container opening.
Typically, the child-resistant feature comprises:
- the outer cap having on the inside thereof, a plurality of internal lugs on the inside surface thereof and extending axially away from the base, and a plurality of notches of a predefined size projecting below the base at the edge thereof with the peripheral skirt and extending radially inwards;
- a depression at the center of the base protruding inwards from the inner surface thereof; and
- at least a pair of 'L' profiles protruding inwards from the inner surface of the base and disposed radially inwards and between the notches and depression;
Typically, the child-resistant feature further comprises:
- the inner cap having a plurality of external lugs extending axially away from the rim or edge of said inner cap and leading towards the base, and a plurality of protrusions of a predefined size projecting from the top surface of the base at the edge thereof with the peripheral skirt and extending radially inwards;
- a depression at the center of the base protruding inwards from the inner surface thereof; and
- at least one internal thread segment formed the inner surface of the peripheral skirt for screwing of the cap-assembly on the container opening.
Typically, each of the internal lug have a length and a rounded tip or end away from the base.
Typically, each of the external lug have a length and a tapered profile at the end thereof extending radially away from the rim or edge of the inner cap and slanting towards the base thereof.

Typically, the length of external lug is greater by a predefined value than the length of internal lug for engagement of the inner cap and outer cap for opening of the cap assembly from the container opening only by an adult or senior citizen.
Typically, the lugs are disposed equidistance on the periphery of the outer and inner caps.
Typically, the wad is pressed inside the inner cap by means of a bead formed inside the outer cap.
Typically, by exerting an axial pressure on top of the outer cap base, the 'L' profiles, the outer cap is guided to engage with the inner cap; and the notches on the outer cap are configured to engage with the protrusions on the inner cap; and subsequently, by applying a radial force on the serrations of the outer cap, and by rotation thereof in a clockwise direction, the cap-assembly gets tightened on the container opening, or by the rotation of the cap-assembly in a counterclockwise direction, it gets unscrewed from the container opening.
Typically, the child-proof feature comprises an engagement of the external lugs by an engagement thereof with the internal lugs on pressing down the outer cap of the cap-assembly screwed on the container.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The present invention will be briefly described in the following with reference to the accompanying drawings.
Figure 1 shows an exploded perspective view of the container having threads on the opening thereof fitted with a cap-assembly configured in accordance with the present invention.

Figure 2 shows an enlarged sectional (partial) view of cap-assembly configured according to the present invention, screwed on container opening.
Figure 3A shows a sectional view of the child-resistant closure or cap-assembly of Figure 2, configured in accordance with the present invention and marked with portions I, II and III for providing further details thereof.
Figure 3A-I shows a sectional view of the portion I marked on LHS in Figure 3A for providing further details.
Figure 3A-II shows a sectional view of the portion II marked on RHS in Figure 3A for providing further details.
Figure 3A-II1 shows a sectional view of the portion III marked on LHS in Figure 3A for providing further details.
Figure 3B shows a top view of the cap-assembly of Figure 2.
Figure 4A shows a perspective view of the outer cap of Figure 1.
Figure 4B shows a perspective inside view of the outer cap of Figure 4A when seen from below.
Figure 4C shows a cross-sectional view of the outer cap of Figure 4A.
Figure 4D shows a side view of the outer cap of Figure 4A.
Figure 5A shows a perspective view of the inner cap of Figure 1.
Figure 5B shows a perspective inside view of the inner cap of Figure 5A when seen from below.
Figure 5C shows a top view of the inner cap of Figure 5A.

Figure 5D shows a side view of the inner cap of Figure 5A.
Figure 5E shows a cross-sectional view of the inner cap of Figure 5A.
Figure 6A shows a detailed cross-sectional view of the child resistant cap-assembly of Figure 2 after screwing thereof on the container-opening (Fig. 1).
Figure 6B shows a cross-sectional view of the cap-assembly of Figure 2 with the internal lugs of the outer cap and external lugs of the inner cap to operate the child-safety features.
Figure 7 shows a cross-sectional view of container of Fig. 2 closed/ opened by the cap-assembly of Fig. 6A, configured in accordance with the present invention, showing the relative positions of internal and external lugs on unscrewing/opening thereof from the container opening.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS
in the following, the closure device with child-resistance closure for containers configured in accordance with the present invention will be described in more details with reference to the accompanying drawings without limiting the scope and ambit of the present invention.
Figure 1 shows an exploded perspective view of the container 200 having threads 210 on the opening 205 thereof, fitted with a cap-assembly 100 configured in accordance with the present invention. The cap assembly 10 includes an outer cap 30, an inner cap 60 and a wad 90 placed therein before fitting of cap-assembly 100 on the container opening 205 for sealing thereof.
Figure 2 shows an enlarged sectional view of cap-assembly 100 configured in accordance with the present invention screwed on the threads 210 provided

on the opening 205 of the container 200 (partially shown). The cap-assembly 100 is assembled from outer cap 30 and inner cap 60 with a wad 90 placed therein before fitting thereof on the container opening 205 for sealing thereof.
Figure 3A shows a sectional view of the child-resistant closure or cap-assembly 100 of Figure 2, configured in accordance with the present invention and marked with portions I, II and III for providing further details thereof. The cap assembly includes an outer cap 30 having a base 42 and peripheral skirt 40 (Fig. 4A) and an inner cap 60 having a base 72 and a peripheral skirt 63 (Fig. 5A). A wad 90 of thickness 92 and diameter 95 (Fig. 6C) is placed between the inner cap 30 and the container opening 205, on which this child-resistance cap assembly 100 is normally screwed for child-proof sealing thereof. The outer cap 30 includes a plurality of internal lugs 32 extending from the inner side of base 42 of the outer cap 30 and having a predefined length li (Fig. 4C) in axial direction thereof. The internal lugs 32 have a rounded profile or tip at their end away from the base 42. Similarly, the inner cap 60 (Fig. 5A) includes a plurality of external lugs 62 extending from a rim or edge 80 of the inner cap 60 and having a predefined length h (Fig. 5B) in axial direction thereof. The inner cap 60 also includes at least one internal thread segment 85 (Fig. 5B). The external lugs 62 have a portion with tapered profile at their ends extending radially away from the outer surface thereof and slanting towards the base 72 thereof. These external lugs 62 are provided to slidably engage with the internal lugs 32 of outer cap 30 by a predefined overlapping lengths (l1, I2) provided between these lugs 32, 62. The rounded tips of internal lugs 32 and tapered profiles of external lugs 62 facilitate in a sliding engagement 'E' between these lugs 32, 62 due to the slanting angle of the internally threaded segment 85 with the outer cap lugs 32 for aligning the inner cap 60 within the outer cap 30. A depression 47 (also in Fig. 4C) is provided on the top surface of outer cap 30 and a corresponding depression 67 (also in Fig. 5E) is provided on the top surface of inner cap 30.

Figure 3A-1 shows a sectional view of the portion I marked on LHS in Fig.3A for providing further details. The engagement E of the internal lugs 32 of the outer cap 30 with the external lugs 62 of the internal cap 30 is clearly visible here (also see Figure 6A).
Figure 3A-II shows a sectional view of the portion II marked on RHS in Fig.3A for providing further details. The engagement DE of the internal lugs 32 of the outer cap 30 from the external lugs 62 of the internal cap 30 is clearly visible here (also see Figure 6B).
Figure 3A-III shows a sectional view of the portion III marked on LHS in Fig.3A for providing further details. It shows the gap ti between L-profiles 34 and base 72 of the internal cap 60 s well as the gap fa between notches 36 of outer cap 30 and protrusions 68 of internal cap 60.
Figure 3B shows a top view of the cap-assembly 100 of Figure 2. It shows at least a pair of arrows marked 'L' to rotate the outer cap 30 in the anticlockwise direction to open it from the container by pushing down and turning; or marked 'R' to rotate in the clockwise direction for tightly closing the cap-assembly 100 on the container opening 205 (not shown). A plurality of L-profiles 34 (in dashed lines) projected inwards and disposed angularly equidistance are also made on the inner surface of base 42 (Fig. 3A) of the outer cap 30. The notches 36 (also in dashed lines) protruding from the inner surface of base 42 of the outer cap 30 and protrusions 68 on top of inner cap 60 are also visible.
Figure 4A shows a perspective view of the outer cap 30 of Figure 1 showing the upper surface of base 42 thereof provided with pairs of arrows V (To open push down & turn anticlockwise) and 'R' (turn clockwise to close tightly) as well as the serrations 44 (Fig. 4D) on the peripheral skirt 40 thereof.

Figure 4B shows a perspective inside view of the outer cap 30 of Figure 4A when seen from below. Here, all internal lugs 32, L-profiies 34, and notches 36 are visible along with the serrations 44 (Fig. 4D) on the peripheral skirt 40 and the rim or terminal edge 50 of the outer cap 30.
Figure 4C shows a cross-sectional view of the outer cap 30 of Figure 4A. The internal lugs 32 have a length h, outer diameter 45 at the peripheral skirt 40 and thickness T of the base 42. The outer cap 30 has a height H, outer diameter 55 and inner diameter 56 at terminal edge 50 thereof. The corresponding depression 47 is also visible on the top surface of inner cap 30.
Figure 4D shows a side view of the outer cap 30 of Figure 4A, having a plurality of serrations 44 on the peripheral skirt 40 and the rim or terminal edge 50 thereof.
Figure 5A shows a perspective view of the inner cap 60 of Figure 1. The external lugs 62, chamfered edge 64 at the joint of the base 72 with the peripheral skirt 63 and the protrusions 68 on top of base 72 are also visible.
Figure 5B shows a perspective inside view of the inner cap 60 of Figure 5A when seen from below. It includes the external lugs 62, chamfered edge 64, partially internally threaded segment 85 and inner surface 74 of the cap base 72 joined to the peripheral skirt 63. Each external lug 62 has length I2 higher than the length h of internal lug 32 of the outer cap 30 by a predefined value.
Figure 5C shows a top view of the inner cap 60 of Figure 5A indicating the external lugs 62, edge 64 between the peripheral skirt 63 and top of base 72 and a plurality of protrusions 68 thereon.

Figure 5D shows a side view of the inner cap 60 of Figure 5A with the different features of the inner cap 60 like external lugs 62 with tapered and chamfered ends, edge 64, protrusions 68 and peripheral skirt 63 of inner cap 60.
Figure 5E shows a cross-sectional view of the inner cap of Figure 5A. The inner cap has a height hi over the protrusions 68 and height h2 up to the top of base 72 thereof. The outer diameter 65 over the external lugs 62 is higher by a predefined amount than the outer diameter 66 of the inner cap 60 at the peripheral skirt 63 thereof. The outer diameter 75 at the open end of inner cap 60 is higher by a predefined amount than the internal diameter 76 of inner cap 60 at the rim or edge 80 thereof. The internally threaded segment 85 has minimum diameter 70 for screwing thereof on the external threads 210 of the container 200 (not shown). The inner cap 60 includes a thin circumferential bead 78 near the inner surface of the base 72 for holding the wad 90 in place after pressing thereof inside the inner cap 60.
Figure 6A shows a cross-sectional view of the cap-assembly 100 Figure 2, after screwing thereof fitted as a child resistant cap assembly on the container-opening 205 (Figure 1), after pressing down outer cap 30 on inner cap 60 thereof by an adult/senior citizen to engage internal lugs 32 and external lugs 62 thereof. There is a gap ti present between lower face of L-profiles 34 and the top of base 72 the inner cap 60, before pressing down and turning the outer cap base 42 anticlockwise in the direction of arrow 'L' (see Fig. 4A). This gap ti facilitates the engagement 'E' (Fig. 6D) of internal lugs 32 of the outer Cap 30 with external lugs 62 of inner cap 60 when outer cap base 42 is pressed down and turned anticlockwise in the direction of arrow 'L' (see Fig. 4A) for opening the cap assembly 100 from the container 200 (not shown).
Figure 6B shows a cross-sectional view of the cap-assembly 100 of Figure 2

with the internal lugs 32 of the outer cap 30 having the rounded tip thereof riding over the external lugs 62 of the inner cap 60 having the tapered and chamfered ends thereof to operate the child-safety features. Here, the outer cap 30 is depicted in a position when the upper surface of base 42 thereof is pressed down and turned in anticlockwise direction in the direction of arrow 'L' (see Figure 4A).
This can be easily done by a senior citizen to open this child-resistant cap assembly 100 configured in accordance with the present invention. Otherwise, without pressing down the upper surface of the outer cap base 42, the notches 36 of the outer cap 30 will not engage with the protrusions 68 on the inner cap 60, and thus the outer cap 30 will continue to rotate freely around the inner cap 30 and this child-resistant cap assembly 100 cannot be unscrewed from the container 200 (not shown) especially by children, who would not be able to access its contents (often harmful).
Figure 7 shows a cross-sectional view of container 200 of Figure 2, closed/opened by the cap-assembly 100 of Fig. 6A, configured in accordance with the present invention, particularly (A) showing the relative positions of internal lugs 32 and external lugs 62 when cap-assembly 100 is screwed/closed on the container opening 205; and (B) showing the relative positions of internal lugs 32 and external lugs 62 when cap-assembly 100 is unscrewed/opened from the container opening 205.
The enlarged view (a) corresponds to the pattern (A) for the engagement of the internal and external lugs 32, 62 while screwing or closing the cap assembly 100 on the container 200, while enlarged view (a) corresponds to the pattern (B) for the engagement of the internal and external lugs 32, 62 while unscrewing or opening the cap assembly 100 from the container 200.

WORKING OF THE INVENTION
In is an aspect of the invention that the closure for container comprises outer and inner caps. The outer cap having a base 42 with a peripheral skirt 40 and a plurality of internal lugs 32, each with a rounded tip on said base 42 adjacent to said peripheral skirt 40. The inner cap 60 is disposed within said outer cap 30 and has a base 72 with a peripheral skirt 63 having at least one internal thread segment 85 thereon and a plurality of external lugs 62 on said skirt 63. Each of the internal lugs 32 includes a portion extending radially inwardly along an undersurface of the base 42 of said outer cap 30 for engaging the external lugs 62 on the inner cap 60 extending axially along an inner surface 74 of the peripheral skirt 63 of said inner cap 60 for slidably engaging the outer cap 30 due to the slanting angle of the inner cap external lugs 62 with the outer cap internal lugs 32 and aligning the inner cap 60 within the outer cap 30.
It is another aspect of the present invention that on exerting a pressure on the base 42 of the outer cap 30, the guiding "L" shaped marks 34 on outer cap base 42 guide the outer cap 30 to engage (E) with inner cap 60 and the protrusions 68 on inner cap 60 and notches 36 on the outer cap 30 are engaged by the axial force and on applying a radial force along the circumference of the outer cap 30, it gets tightened and on rotating it in a counterclockwise direction in the same manner, the cap-assembly 100 gets unscrewed from the container opening 205.
When the axial pressure is released, there is disengagement (DE) of the protrusions 68 of the inner cap 60 and notches 36 of the outer cap 30, whereby the outer cap 30 slides freely over the inner cap 60 because of the less contact angle between the outer cap internal lugs 32 having rounded tips and the inner cap external lugs 62 having slanting tips to prevent the contact angle of engagement.

TECHNICAL ADVANTAGES AND ECONOMIC SIGNIFICANCE
The closure with child-resistant cap-assembly for containers, configured in accordance with the present invention has following advantages:
- Differing gap between the protrusions on the outer cap and notches on the inner cap allows the base of the outer cap to be pressed down for engagement thereof.
- Rounded tips on outer cap internal lugs and the inner cap having external lugs with tapered and slanted edges enable a senior citizen to easily turn the outer cap engaged with inner cap anticlockwise to open cap assembly.
- This typical configuration prevents children from opening the containers fitted with this innovative child-resistant cap assembly.
- The tightening of the container can be controlled during screwing to provide a unique child resistant feature and simultaneously ensuring senior citizen easy access to the container substances harmful to children.
- Side notch angle on inner cap gives positive engagement when pushed.
- Top protrusion angle on inner cap gives easy slip for child-safety when not pushed.
- Angle on outer cap bottom rim eases the cap assembly.
- Angle on inner cap top rim eases the cap assembly.
- Equidistance pairs of L-profile with rounded ends and spacer block/notch configuration on outer cap facilitates equal opening force.
- Equidistance spacer blocks/notch configuration on outer cap facilitates equal opening force.
- Inner cap bottom rim area guides the outer cap for proper turning thereof.

- Wadding facility for seal proof container pack of harmful substances.
- Knurling on outer cap eases the capping on the containers.
- Thread SP400 on neck of PET/HDPE containers is a worldwide standard.
The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments.
It is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation. The exemplary embodiments described in this specification are intended merely to provide an understanding of various manners in which this embodiment may be used and to further enable the skilled person to practice this invention.
Although, the embodiments presented in this disclosure have been described in terms of its preferred embodiments, the skilled person in the art would readily recognize that these embodiments can be applied with modifications possible within the spirit and scope of the present invention as described in this specification by making innumerable changes, variations, modifications, alterations and/or integrations in terms of materials and method used to configure, manufacture and assemble various constituents, components, subassemblies and assemblies, in terms of their size, shapes, orientations and interrelationships without departing from the scope and spirit of the present invention.

Throughout this specification, the word "comprise", or variations such as "comprises" or "comprising", shall be understood to imply including a described element, integer or method step, or group of elements, integers or method steps, however, does not imply excluding any other element, integer or step, or group of elements, integers or method steps.
The use of the expression "a", "at least" or "at least one" shall imply using one or more elements or ingredients or quantities, as used in the embodiment of the disclosure in order to achieve one or more of the intended objects or results of the present invention.
The description of the exemplary embodiments is intended to be read in conjunction with the accompanying drawings, which are to be considered part of the entire written description. In the description, relative terms such as "lower", "upper", "horizontal", "vertical", "above", "below", "up", "down", "top", and "bottom" as well as derivatives thereof (e.g. "horizontally", "downwardly", "upwardly" etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion.

We claim:
1. A closure with child-resistant cap assembly (100) for containers, said
cap assembly (100) comprising:
(i) an outer cap (30) having a peripheral skirt (40) with serrations (44) depending from the base (42) thereof;
(ii) an inner cap (60) having a peripheral skirt (63) depending from the base (72) thereof; and
(iii) a wad (90) pressed inside said inner cap (60);
wherein said cap-assembly (100) comprises a child-resistant feature to prevent any child from opening/unscrewing said cap-assembly (100) from the opening (205) of a container (200) but to enable an adult or senior citizen to easily open/unscrew said cap-assembly (100) from or close/screw said cap-assembly (100) from said container opening (205).
2. The closure as claimed in claim 1, wherein said child-resistant feature
comprises:
(a) said outer cap (30) having, a plurality of internal lugs (32) on the inside surface thereof and extending axially away from said base (42), and a plurality of notches (36) of a predefined size projecting below said base (42) at the edge thereof with said peripheral skirt (40) and extending radially inwards;
(b) a depression (47) at the center of said base (42) protruding inwards from the inner surface thereof; and
(c) at least a pair of 'L' profiles (34) protruding inwards from the inner surface of said base (42) and disposed radially inwards and between said notches (36) and depression (47);

3. The closure as claimed in claim 1, wherein said child-resistant feature
further comprises:
(i) said inner cap (60) having a plurality of external lugs (62) extending axiaiiy away from the rim or edge (80) of said inner cap (30) and leading towards said base (72), and a plurality of protrusions (68) of a predefined size projecting from the top surface of said base (72) at the edge thereof with said peripheral skirt (63) and extending radially inwards;
(II) a depression (67) at the center of said base (72) protruding inwards from the inner surface (74) thereof; and
(III) at least one internal thread segment (85) formed the inner surface of said peripheral skirt (63) for screwing of said cap-assembly (100) on said container opening (205).

4. The closure as claimed in claim 2, wherein each of said internal lug (32) have a length (h) and a rounded tip or end away from said base (42).
5. The closure as claimed in claim 3, wherein each of said external lug (62) have a length (b) and a tapered profile at the end thereof extending radially away from said rim or edge (80) of said inner cap (30) and slanting towards said base (72) thereof.
6. The closure as claimed in claims 2 and 3, wherein the length (i2) of said external lug (62) is greater by a predefined value (E) than the length (H) of said internal lug (32) for engagement of said inner cap (60) and outer cap (30) for opening of said cap assembly (100) from said container opening (205) only by an adult or senior citizen.

7. The closure as claimed in claim 6, wherein said lugs (32; 62) are disposed equidistance on the periphery of said outer and inner caps (30; 60).
8. The closure as claimed in claim 1, wherein said wad (90) is pressed inside said inner cap (60) by means of a bead (78) formed inside said outer cap (30).
9. The closure as claimed in claim 6, wherein by exerting an axial pressure on top of said outer cap base (42), said 'L' profiles (34) and notches (36) on said outer cap (30) are configured to engage with said protrusions (68) on said inner cap (60); and subsequently, by applying a radial force on the serrations (44) of said outer cap (30), and by rotation thereof in a clockwise direction, said cap-assembly (100) gets tightened on said container opening (205), or by the rotation of said cap-assembly in a counterclockwise direction, it gets unscrewed from said container opening (205).
10. The closure as claimed in claim 6, wherein said child-proof feature comprises an engagement of said external lugs (62) by an engagement (E) thereof with said internal lugs (32) on pressing down said outer cap (30) of said cap-assembly (100) screwed on said container (200).