FORM 2
THE PATENTS ACT, 1970
(Act 39 of 1970)
COMPLETE SPECIFICATION
(See Section 10; Rule 13)
10
Title: “AN ELLIPTICAL SHAPED METAL DRUM
COMPONENT AND AN APPARATUS FOR MAKING
THE SAME”
15
20 Applicants:
E-CON PACKAGING PVT. LTD.
Nationality: An Indian Company
Address: 21/1, Rikhav, R. A. Kidwai Road, Wadala West, Mumbai,
Maharashtra – 400031, India.
25
30
The following specification describes the nature of the invention and
how it is performed:
Page 2 of 15
5 FIELD OF THE PRESENT INVENTION
The present invention relates to an elliptical shaped metal drum
component (100). The present invention also relates to an apparatus
(200) for manufacturing an elliptical shaped metal drum component (100)
and a method for manufacturing an elliptical shaped metal drum
10 component (100). The said shell metal drum component (100) enables
shipping of drum parts in dis-assembled condition and reassembling
them at a location required, whereby solving the problem of shipping
empty drums or barrels in bulk while saving huge shipping costs by
optimizing effective use of transport space.
15
BACKGROUND OF THE PRESENT INVENTION
Metal or steel drums or containers in the volume size of 150L to 280L are
used for the storage and transportation of semi-solid or liquid. In most of
the cases, the transportation of Containers, such as steel/metal drums,
20 is regularly done on a large scale through sea-shipping or through road
transport. There are mainly three components used in the manufacturing
of closed empty drum or container. First is the middle drum component
which is a circular or round body hollow shell; the second component is a
lid to close the top portion of the middle drum component; and the third
25 component is a bottom portion which is affixed tightly to the bottom of
the middle drum component and ensures leakage proof fixation.
Containers such as metal or steel drums are generally manufactured by
affixing or seaming top and bottom components to a drum shell
component or body with the resulting assembled drum and shipped as
30 an empty container to user location. Empty containers such as metal or
steel drums are expensive to transport because of the space which they
consume. Thus, the cost of metal or steel drums can be high if they are
manufactured and shipped empty from a remote site to be filled. Further,
the transportation of assembled drums involves substantial freight

charges due to the void volume of the empty containers and thus involves
huge shipping costs in transportation.
There are several references available who have attempted in providing
the solution for metal or steel drum transportation by changing the shape
10 of the cylindrical or tubular shell component.
US4413400A has disclosed a novel apparatus and process for nesting a
plurality of drum bodies or shells of deformable material wherein a
cylindrically-shaped drum body is subjected to a force in a plane
substantially parallel to the axis of the drum body to deform the drum
15 body to the extent necessary to permit the positioning of a second drum
body about the initially deformed drum body whereupon the deforming
procedure is repeated for the nested first and second drum bodies, and is
thereafter again repeated until a desired number of drum shells are
contained in the resulting nested assembled of drum bodies or shells.
20 The invention allows easy reassembly of the components unlike in the
earlier system where either shell is de-nested manually which creates
safety hazards and also risks coating scratches or with complicated denesting automation. The invention also incorporates use of multiple types
of paints namely Polyurethane, Polyester, clear top coat topcoat lacquer
25 and combination of others linings inside of a drum body for a single
drum body to address the issue of paint peeling while seaming (Joining
top and bottom lids to a drum body) as well as rusting while being as
high seas for prolonged amount of time subject to high moisture added
with salt alkali.
30 US2006277742A1 has disclosed a method of manufacturing the body of
drum kit, the said method includes the steps of rolling a flat, unpainted
metal sheet (10) to a cylindrical form (12) and welding free edges (14) of
the form to produce a cylindrical body (18). This body is temporarily
stiffened and paint is applied to the exterior of the temporarily stiffened
Page 4 of 15
5 body. Thereafter the body is de-stiffened before it is deformed to a
suitable shape for nesting with other such bodies.
In the prior art technologies, sirco drum technology is used for producing
metal or steel drums. In case of the so-called Sirco drum, to produce
drum kits having three separate components, namely a tubular body, a
10 top end and a bottom end. The kits are supplied to the customer who
then assembles the drums as required.
A problem which arises in the use of the Sirco system is that the weld is
unsightly and destroys the continuity of the originally applied paintwork,
often necessitating a localized touch-up of the paint. This is particularly
15 problematical in situations where the body is painted different colours in
different regions along its length, for instance where a central region of
the body is to be one colour or carries screen-printed markings and end
regions are to be another colour. The end result is invariably unsightly.
In situations where one surface of the initial flat sheet is precoated with a
20 rust inhibitor or other treatment, the further problem which arises is that
the protection provided by the internal coat is discontinuous at the weld,
leading to the possibility of localized internal corrosion in this region if a
subsequent step to coat the weld line is not undertaken.
25 As the demand of metal or steel drums in the volume size of 150L to 280L
is very high and due to multiple disadvantages and problems in
nesting/stacking and transporting metal or steel drums, it is need of an
hour to provide a solution that will overcome the issues regarding
nesting/stacking of multiple drums at a time and transporting metal or
30 steel drums in a safer and convenient manner which further helps in
saving time, labor and money associated in stacking and transporting
metal or steel drums from one location to another location.

OBJECTIVES OF THE PRESENT INVENTION
The principal objective of the present invention is to obviate the problems
faced by the prior art technologies.
There is an objective to provide an elliptical shaped metal drum
component.
10 It is an objective to provide an apparatus for manufacturing an elliptical
shaped metal drum component.
It is also an objective to provide a method for manufacturing an elliptical
shaped metal drum component.
15 There has thus been outlined, rather broadly, the more important
features of the invention in order that the detailed description thereof
that follows may be better understood and in order that the present
contribution to the art may be better appreciated.
20 DETAILED DESCRIPTION OF DRAWINGS
The invention is further described by way of example with reference to
the annexed drawings, in which Figure 1 to 7 are described as follows.
The drawing provided here should not be construed as final and detailed
embodiments along with the required drawings have been provided in the
25 detailed description of the said patent application.
Figure-1: Perspective view of an elliptical shaped metal drum component
as per the present invention.
Figure-2: Front view of elliptical shaped shell metal drum component as
per the present invention.
30 Figure-3: Top view of elliptical shaped shell metal drum component as
per the present invention.
Figure-4: Perspective view of an apparatus for making elliptical shaped
shell metal drum component as per the present invention.
Figure-5: Front view of an apparatus for making elliptical shaped shell
35 metal drum component as per the present invention.
Page 6 of 15
5 Figure-6: Top view of an apparatus for making elliptical shaped shell
metal drum component as per the present invention.
Figure-7: Bottom view of an apparatus for making elliptical shaped shell
metal drum component as per the present invention.
10 DETAILED DESCRIPTION OF THE PRESENT INVENTION
The present invention relates to an elliptical shaped metal drum
component. The present invention also relates to an apparatus for
manufacturing an elliptical shaped metal drum component and a method
for manufacturing an elliptical shaped metal drum component. For the
15 purpose of making an elliptical shaped metal drum component, round
shell as a middle drum component is selected from the metal or steel
drum having a volume capacity of a drum shell between 150L to 280L.
As per the prior art technologies, there are mainly three components
20 used in the manufacturing of closed empty drum having a volume
capacity between 150L to 280L.
First is the middle drum component which is a circular or round body
hollow shell; the second component is a lid to close the top portion of the
middle drum component; and the third component is a bottom portion
25 which is affixed tightly to the bottom of the middle drum component and
ensures leakage proof fixation.
Prior art technologies have provided several solutions for transporting
empty drums through sea-route or via road transportation.
One is providing closed empty drums with all three components for
30 transportation purpose.
Second solution is to separately transporting middle drum component in
either round or circular shape or knock-down shape along with top and
bottom components and all three components may be affixed after it
reaches to a final destination.

In both the cases, transporting empty drums requires lot of spaces and
involves higher expenses that makes the above solutions commercially
not viable options while transporting the drums from one place to
another.
Further, there are higher chances of deterioration or damage of painting
10 or coating of inner or outer portion of the painted drums if painted drum
components are transported from one place to another.
The present invention is an attempt for providing a concrete solution for
above problems in stacking and transporting the drum components
15 wherein round or circular shaped middle drum component selected from
the metal or steel drum having the volume capacity between 150L to
280L is converted into an elliptical shaped metal drum component, the
said elliptical shaped metal drum component makes possible of stacking
a plurality of drums, one on another or next to each other laying
20 vertically or horizontally.
In the first embodiment of the present invention, there is provided an
elliptical shaped metal drum component (100). Figure-1 shows a
schematic drawing of and perspective view of an elliptical shaped metal
25 drum component (100) as per the present invention.
The size of a middle component i.e. round shell of a metal or steel drum
for the purpose of converting it into a flat shaped shell metal drum
component having elliptical shaped edges is selected from:
Vertical length: between 800mm to 1090mm
30 Figure-2 shows top view of an elliptical shaped metal drum component
(100), figure-3 shows front view of an elliptical shaped metal drum
component (100) as per the present invention.
Referring figure-1 to 3, an elliptical shaped metal drum component (100)
comprises middle portion (102) combined with both the edges (101a &
35 101b) forming elliptical shaped flat shell metal drum component. The
Page 8 of 15
5 said elliptical shaped shell metal drum component is looked like a flat
shaped shell metal drum component.
According to another aspect of the present invention, middle portion
(102) of drum component (100) is flattened together with minimum
possible gap on opposite sides (102a & 102b) of middle portion (102) to
10 avoid abrasion facilitating peeling of internal lining along with storing of
maximum possible numbers of drum components in a specified space.
This can include nesting or stacking of flat shaped metal drum
components (100) adjacent to each other to optimize the space while
transportation.
15
An elliptical shaped shell metal drum component (100) is having
following parameters:
Vertical length: between 800mm to 1090mm
Width: 850mm to 920mm
20 Diameter of elliptical shaped edges on each side: 21mm to 35mm.
Gap between opposite sides (102a & 102b) of middle portion (102) of
elliptical shaped shell metal drum component: 25mm to 55mm.
In the second embodiment, there is provided an apparatus (200) for
25 manufacturing an elliptical shaped metal drum component (100).
Figure-4: Perspective view of an apparatus for making an elliptical
shaped metal drum component as per the present invention.
Figure-5: Front view of an apparatus for making an elliptical shaped
metal drum component as per the present invention.
30 Figure-6: Top view of an apparatus for making an elliptical shaped edges
of shell metal drum component as per the present invention.
Figure-7: Bottom view of an apparatus for making an elliptical shaped
edges of shell metal drum component as per the present invention.

Accordingly, An apparatus (200) for making an elliptical shaped metal
drum component (100) from round shell metal drum component
comprises: a frame (201) with an arrangement for accommodating means
of force (204 & (205) on to top (201x) and bottom (201y) portion of the
frame (201), a space (206 & 207) on top and bottom portion of a frame
10 (201) for extending both means of force (204 & 205) in horizontal
direction from one end (201a) of a frame (201) to another end (201b) of a
frame (201) at a time; means of force (204 & 205) affixed onto the top
(201x) and bottom (201y) portion of a frame (201) having 2 holes (204H1,
204H2 & 205H1, 205H2) on each sides of it to accommodate removable
15 round shaped metal rods (208 & 209) on both the sides enabling both
round shaped metal rods (208 & 209) moving from one end (201a) of a
frame (201) to another end (201b) of a frame (201) at a time; 2 removable
round shaped metal rods (208 & 209), each rod containing wide head on
top portion of it forming a bolt type structure (208B & 209B) of a rod (208
20 & 209), vertically placeable on to each means of force (204 & 205)
through the holes (204H1, 204H2 & 205H1, 205H2) provided on each
sides of means of force (204 &205).
Referring figure 4 to 7, a square or rectangular shaped frame (201) is
25 provided with an arrangement for accommodating means of force (204 &
205) on to top (201x) and bottom (201y) portion of a frame (201). The
vertical length (L1) and width (W1) of the inner side of the frame (201) is
kept between 1050mm to 1150mm. As shown in figure-7 & 8, each
means of force (204 & 205) is fixed on to top (201x) and bottom (201y)
30 portion of a frame (201) using nuts and bolts. The diameter of each
means of force (204 & 205) is dependent on the outer width of top (201x)
and bottom (201y) portion of a frame (201), preferably the diameter of
each means of force is kept between 40mm to 120mm.
A means of force (204 & 205) is selected from pneumatic or hydraulic
35 actuator, electric actuator or a mechanism of providing mechanical force.
Page 10 of 15
5 In the present invention, for the simplicity of description and explanation
of the present invention, hydraulic cylinder (204 & 205) is considered as
means of force as an example which should not be construed as limiting
the scope of the present invention.
10 There is a space (206 & 207) having horizontal length of 430mm to
500mm is provided on to top (201x) and bottom (201y) portion of a frame
(201) for the purpose of extending both means of force (204 & 205) in
horizontal direction from one end (201a) of a frame (201) to another end
(201b) of a frame (201) at a time.
15 Further as shown in figure-7 & 8, there is provided 2 means of force, for
example 2 (Two) hydraulic cylinders (204 & 205) with an arrangement of
holes [(204H1, 204H2) & (205H1, 205H2)] on each side of the hydraulic
cylinder (204 & 205). Accordingly, hydraulic cylinder (204) comprises 2
holes (204H1 & 204H2) while hydraulic cylinder (205) comprises 2 holes
20 (205H1 & 205H2).
The present invention has provided 2 (two) removable round shaped
metal rods (208 & 209). Each metal or steel rod (208 & 209) is having
wide head on one end forming bolt type structure enabling the other end
of each rod passing through the holes [(204H1, 204H2) & (205H1,
25 205H2)] provided on each means of force (204 & 205). The diameter of
each hole [(204H1, 204H2) & (205H1, 205H2)] provided with the means
of force (204 & 205) is kept slightly bigger than the diameter of the round
shaped rods (208 & 209), preferably the diameter of each hole is kept
between 15mm to 32mm while the diameter of each round shaped rod is
30 kept between 18mm to 30mm. Thus, as shown in figure-4 & 5, each
metal rod vertically connects each hole of means of force affixed on to top
(201x) and bottom (201y) portion of the frame (201). It means round
shaped metal rod (208) is able to pass through vertically from holes
(204H1 to 204H2) of means of force (204) while the second metal rod
35 (209) is able to passed through vertically from holes (205H1 to 205H2) of

means of force (205). Further, the vertical length of both metal rod (208 &
209) kept same, preferably between 1050mm to 1150mm.
A flat shaped shell drum component having elliptical shaped edges (100)
is made as per the user requirement which is dependent on the volume,
10 size and diameter of the round shell drum component. Round shell drum
having volume capacity between 150L to 280L and vertical Length
between 800mm to 1090mm is used for elliptical shaped shell
manufacture purpose. Similarly, an apparatus (200) for making a shell
drum component having elliptical shaped edges is also be made as per
15 the user requirement which is dependent on the volume, size and
diameter of the round shell drum component. All the important
parameters, criteria related to an elliptical shaped shell drum component
(100) and an apparatus (200) for making an elliptical shaped shell drum
component (100) have already been defined and described in the
20 aforementioned paragraphs.
According to the third embodiment, there is also provided a method for
manufacturing an elliptical shaped metal drum component using the
disclosed apparatus (200).
25 Without limiting the scope of the present invention, a general method is
provided as under:
Referring the figures, the said apparatus (200) is useful in making or
converting round shell metal drum component to an elliptical shaped
metal drum component (100). The round shell is placed in the inner side
30 of a frame (201). Two removable rods are then vertically passed through
the holes of each hydraulic cylinder in such a manner so that rods can be
kept at a distance and touch the inner side of round shaped drum
component. Once the round shaped rods are kept in the inner side of the
round shell and locked in the top and bottom holes of the hydraulic
35 cylinders, a force is provided with the help of hydraulic cylinder by
Page 12 of 15
5 switching on the hydraulic cylinders. Both hydraulic cylinders start
working on same time and extending horizontally from one end to
another end of the space on a frame. Extending one end of both the
hydraulic cylinders enable round shaped metal rod (209) moving from
one end of a frame to another end of a frame at a time and converting it
10 into a shell metal drum component having elliptical shaped edges on
both the sides.
The present invention makes it possible for nesting/stacking of multiple
drums at a time and transporting metal or steel drums in a safer and
15 convenient manner which further helps in saving time, labor and money
associated in stacking and transporting metal or steel drums from one
location to another location.
ADVANTAGES OF THE PRESENT INVENTION
20 • The present invention enables nesting/stacking of multiple drums at
a time and transporting metal or steel drums in a safer and
convenient manner which further helps in saving time, labor and
money associated in stacking and transporting metal or steel drums
from one location to another location.
25 • The present invention enables shipping of drum parts in disassembled condition and reassembling them at a location required,
whereby solving the problem of shipping empty drums or barrels in
bulk while saving huge shipping costs by optimizing effective use of
transport space.

NAME OF COMPONENTS AND REFERENCE NUMERALS
Reference
Numeral
Name of Component(s)
100 Shell metal drum component with elliptical
shaped edges
101a & 101b Elliptical shaped edges
102 Middle portion of drum component
102a and 102b Sides of middle portion of drum component
200 An apparatus for making a shell metal drum
component with elliptical shaped edges
201 A frame
201x Top portion of a frame
201y Bottom portion of a frame
201a One end of a frame
201b Another end of a frame
202 Top view of an apparatus
203 Bottom view of an apparatus
204 & 205 Means of force
206 A space on top portion of a frame
207 A space on bottom portion of a frame
204H1 & 204H2 Holes on top portion of a frame
205H1 & 205H2 Holes on bottom portion of a frame
208 & 209 Round shaped metal rods
208B & 209B Head of each round shaped metal rods
L1 Vertical length of inner side of a frame
W1 Width of inner side of a frame
10
Page 14 of 15

We claim:

1. An elliptical shaped metal drum component (100) comprises middle
portion (102) combined with both the edges (101a & 101b) forming
elliptical shaped flat shell metal drum component.

2. The elliptical shaped metal drum component (100) as claimed in
claim-1 wherein a shell having vertical length between 800mm to
1090mm and width between 850mm to 920mm.

3. The elliptical shaped metal drum component (100) as claimed in
claim-1 wherein the diameter of elliptical shaped edges (101a & 101b)
on each side of a shell metal drum component is between 21mm to
35mm.

4. The elliptical shaped metal drum component (100) as claimed in
claim-1 wherein the gap between opposite sides (102a & 102b) of
middle portion (102) is between 25mm to 55mm.

5. An apparatus (200) for making an elliptical shaped metal drum
component (100) from round shell metal drum component comprises:
a frame (201) with an arrangement for accommodating means of force
(204 & (205) on to top (201x) and bottom (201y) portion of the frame
(201), a space (206 & 207) on top and bottom portion of a frame (201)
for extending both means of force (204 & 205) in horizontal direction
from one end (201a) of a frame (201) to another end (201b) of a frame
(201) at a time; 2 means of force (204 & 205) affixed onto the top
(201x) and bottom (201y) portion of a frame (201) having 2 holes
(204H1, 204H2 & 205H1, 205H2) on each sides of it to accommodate
removable round shaped metal rods (208 & 209) on both the sides
enabling both round shaped metal rods (208 & 209) moving from one
end (201a) of a frame (201) to another end (201b) of a frame (201) at a
time; 2 removable round shaped metal rods (208 & 209), each rod
containing wide head on top portion of it forming a bolt type structure
(208B & 209B) of a rod (208 & 209), vertically placeable on to each
means of force (204 & 205) through the holes (204H1, 204H2 &
205H1, 205H2) provided on each side of means of force (204 &205).

6. An apparatus for making an elliptical shaped metal drum component
(100) as claimed in claim-5 wherein vertical length (L1) and width
(W1) of inner side of a frame (201) is kept between 1050mm to
1150mm.

7. An apparatus for making an elliptical shaped metal drum component
(100) as claimed in claim-5 wherein means of force (204 & 205) is
selected from pneumatic or hydraulic actuator, electric actuator or a
mechanism of providing mechanical force.

8. An apparatus for making an elliptical shaped metal drum component
(100) as claimed in claim-5 wherein diameter of means of force (204 &
205) is between 40mm to 120mm.

9. An apparatus for making an elliptical shaped metal drum component
(100) as claimed in claim-5 wherein diameter of each hole (204H1,
204H2 & 205H1, 205H2) of a means of force (204 & 205) is between
15mm to 32mm.

10. An apparatus for making an elliptical shaped metal drum component
(100) as claimed in claim-5 wherein each round shaped rod (208 &
209) is having vertical length between 1050mm to 1150mm and
diameter between 18mm to 30mm.

Dated this the _______ day of _____________, 2024