FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
AND
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
“MIXER GRINDER JAR HANDLE FOR WITHSTANDING
IMPACT LOAD”
We, Bajaj Electricals Limited, an Indian National, of 45/47, Veer Nariman Road, Fort, Mumbai- 400001, Maharashtra, India
The following specification particularly describes the invention and the manner in which it is to be performed.

FIELD OF INVENTION
The present invention generally relates to consumer appliances, in particular, a jar handle for kitchen appliances.
BACKGROUND OF THE INVENTION
Various kitchen appliances, in particular appliances for mixing and grinding of various food items, comprise a jar with a handle, which is mountable on a stand comprising a motor. Such appliances are used widely in almost all kitchens in India and are used on a regular basis. Due to their regular frequency of use, there is an increased chance of the jar being dropped accidentally, which can cause damage to the jar. A common damage of the jar is breaking of the handle, which is typically made of a plastic polymer material; and denting of the jar body. Such damages can result in replacement of the damaged part (handle and/or jar); inconvenience to the user. Therefore, there is a need for better and more robust handle assembly, which would not break easily; not cause damage to the jar when dropped; and have increased longevity and ease of use.
SUMMARY OF THE INVENTION
In an aspect of the present invention, there is provide a handle for a container comprising: (a) a first region; (b) a second region; and (c) a transition region connecting the first region and the second region, wherein the transition region has an outer curvature; an inner curvature; and comprises at least a corrugation region.
In an aspect of the present invention, the outer curvature and the inner curvature of the transition region are independently in the range of 10-25mm.
In an aspect of the present invention, the height of a single corrugation of the transition region is in the range of 3-15mm, and the height of the corrugation region is in the range of 10-60mm.
In an aspect of the present invention, the first region of the handle comprises: (a) at least two attaching means to mechanically attach the first region of the handle to the jar, the at least two attaching means are spaced 30-80mm apart; and (b) at

least two jar contact areas extending laterally away from at least two attaching means.
In an aspect of the present invention, the at least two jar contact areas of the first region are spaced apart from the at least two attaching means.
In an aspect of the present invention, the first region of the handle further comprises: (a) a top rib configured to be in contact with the jar outer body; and (b) a bottom rib configured to be in contact with the jar outer body, wherein the bottom rib comprises at least a recessed section configured to not be in contact with the jar, wherein the distance between the top rib and the bottom rib is in the range of 10¬35mm.
In an aspect of the present invention, the span of the first region of the handle is in the range of 40-120mm; the span of the second region is in the range of 20-35mm; and the first region connects to the transition region via a tapered section having a curvature in the range of 20-100mm.
In an aspect of the present invention, the vertical distance between the bottom rib and the top of the corrugation region is in the range of 0-30mm.
In an aspect of the present invention, the handle height is in the range of 90¬130mm.
In an aspect of the present invention, the handle is of military grade MIL-STD-810H.
This summary is not intended to identify the essential features of the invention nor is it intended for use in determining or limiting the scope of the claimed subject matter.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The following drawings form part of the present disclosure and are intended to be illustrative to better explain the invention and the embodiments herein, but are not to be construed as limiting the scope of the invention.
Figure 1a, b depicts the side view of the handle of the present invention, in accordance with an embodiment of the present invention.

Figure 2a-b depicts the profile of the first region facing the jar surface area of the handle of the present invention, in accordance with an embodiment of the present invention.
Figure 3 depicts the top view of the first region of the handle of the present invention, in accordance with an embodiment of the present invention.
Figure 4 depicts the side view of the handle of the present invention, in accordance with an embodiment of the present invention.
Figure 5 depicts in graphical format, the time vs reaction force relationship of the handle when exposed to stress force, in accordance with an embodiment of the present invention.
Figure 6a depicts the stress distribution at the jar body attached to handle when exposed to stress force, in accordance with prior art.
Figure 6b depicts the stress distribution at the jar body attached to handle when exposed to stress force, in accordance with an embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Those skilled in the art will be aware that the invention described herein is subject to variations and modifications other than those specifically described. It is to be understood that the invention described herein includes all such variations and modifications. The invention also includes all such features referred to or indicated in this specification, individually or collectively, and any and all combinations of any two or more of said features.
For convenience, before further description of the present invention, certain terms/ definitions employed in the specification should be read in light of the remainder of the disclosure and understood as by a person of skill in the art. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by a person of ordinary skill in the art.
The present invention provides a handle (1) for a container comprising: (a) a first region (2); (b) a second region (3); and (c) a transition region (4) connecting the

first region (2) and the second region (3), wherein the transition region (4) has an outer curvature (r1); an inner curvature (r2); and comprises at least a corrugation region (5).
In an embodiment, the outer curvature (r1) is in the range of 10-25mm. In an embodiment, the inner curvature (r2) is in the range of 10-25mm. In an embodiment, the outer curvature (r1) is greater than the inner curvature (r2). In an embodiment, the outer curvature (r1) is lesser than the inner curvature (r2). In an embodiment, the outer curvature (r1) is equal to the inner curvature (r2). In a preferred embodiment, the outer curvature (r1) is greater than the inner curvature (r2).
In an embodiment, the corrugation region (5) comprises a single corrugation. In an embodiment, the corrugation region (5) comprises a plurality of corrugations. In an embodiment, the corrugation region (5) comprises 2, 3, or 4 corrugations.
The first region (2) of the handle (1) of the present invention comprises at least two attaching means (6a, 6b) to mechanically attach the first region (2) of the handle (1) to the jar. In a preferred embodiment, the first region (2) comprises two attaching means (6a, 6b). The two-attaching means (6a, 6b) are spaced 30-80mm apart from each other. The spacing of the attaching means (6a, 6b) may depend upon at least one factor, such as, but not limited to, the size of the jar; and/or the weight capacity of the jar. The first region (2) further comprises at least two jar contact areas (7a, 7b). In a preferred embodiment, the first region (2) comprises two jar contact areas (7a, 7b). The jar contact areas (7a, 7b) extend laterally away from the two-attaching means (6a, 6b). The at least two jar contact areas (7a, 7b) are spaced apart from the at least two attaching means (6a, 6b). In an embodiment, the jar contact areas (7a, 7b) facing the jar surface is substantially smooth. In an embodiment, the jar contact areas (7a, 7b) facing the jar surface is ribbed. In an embodiment, the jar contact area (7a or 7b) comprises one or more ribs. The one or more ribs may be raised from the surface of the contact area; or depressed from the surface of the contact area. In an embodiment, the jar contact areas (7a, 7b) facing the jar surface is

dotted. In an embodiment, the jar contact areas (7a, 7b) comprise a plurality of dots. The dots may be raised or indents on the surface of the jar contact areas (7a, 7b).
In an embodiment, the first region (2) of the handle (1) further comprises a top rib (8) configured to be in contact with the jar outer body. In a preferred embodiment, substantially the whole of the top rib (8) is configured to be in contact with the jar outer body. In an embodiment, the top rib (8) is in adhesive contact with the jar outer body. The top rib (8) is in continuous connection with the jar contact areas (7a, 7b).
In another embodiment, the first region (2) of the handle (1) still further comprises a bottom rib (9) configured to be in contact with the jar outer body. The bottom rib (9) comprises at least a recessed section (10) configured to not be in contact with the jar outer body. In a preferred embodiment, the bottom rib (9) comprises a single recess. While there is no particular limitation to the position and shape of the recess, in a particular embodiment, the recess (10) is U-shaped. in a preferred embodiment, the U-shaped recess (10) is located equidistant from the edges of the jar contact areas (7a, 7b).
The distance between the top rib (8) and the bottom rib (9) is in the range of 10-35mm. In an embodiment, the distance between the top rib (8) and the bottom rib (9) is uniform. In another embodiment, the distance between the top rib (8) and the bottom rib (9) is variable. In an embodiment, the distance between the top rib (8) and the bottom rib (9) as measured between the attaching means (6a, 6b) is less than the distance between the top rib (8) and the bottom rib (9) as measured between at least an attaching mean (6) and the adjacent jar contact area (7). In an alternate embodiment, the distance between the top rib (8) and the bottom rib (9) as measured between the attaching means (6a, 6b) is more than the distance between the top rib (8) and the bottom rib (9) as measured between at least an attaching mean (6) and the adjacent jar contact area (7).
The span of the first region (2) of the handle (1) is in the range of 40-120mm. The span of the first region (2) is the distance between the outside edge of the two

jar contact areas (7a, 7b). The span of the second region (3) is in the range of 20¬35mm. The span of the second region (3) is the width of the second region (2). The first region (2) connects to the transition region (4) via a tapered section (11) having a curvature r3 in the range of 20-100mm.
The vertical distance between the bottom rib (9) and the top of the corrugation region (5) is in the range of 0-30mm. The handle (1) height (h) is in the range of 90-130mm. The handle (1) is of military grade MIL-STD-810H.
Figure 1a illustrates a side view of the handle (1) of the present invention. As seen in Fig. 1a, the handle (1) comprises a first region (2), a second region (3), and a transition region (4) connecting the first region (2) to the second region (3). The transition region (4) comprises the “neck” of the handle (1). The neck region of the transition region (4) of the handle (1) has an outer curve and an inner curve, the outer curve having a first radius (r1) and the inner curve having a second radius (r2). r1 and r2 are independently in the range of 10-25mm. The transition region (4) comprises a corrugation region (5), which has one or more corrugations. The height (x) of a single corrugation is 3-15mm, while the height (y) of the corrugation region (5) is 10-60mm (see Fig. 1b). the vertical distance (z) between the bottom rib (9) and the top of the corrugation region (5) is in the range of 0-30mm.
Figure 2a-b illustrates the profile of the first region (2) facing the jar surface area. As seen in Fig. 2a, the first region (2) comprises two attaching means (6a, 6b). The attaching means (6a, 6b) mechanically attached the handle (1) to the jar. In an implementation, the mechanical attachment can be by means of a screw type attachment. The distance between the two-attaching means (6a, 6b) is in the range of 30-80mm. In an implementation, extending outwards from each of the attaching means (6a, 6b), are jar contact areas (7a, 7b), which are in adhesive contact with the jar surface. The jar contact areas feature a substantively smooth plane surface area in contact with the jar surface so as to form a secure and strong bonding with the jar surface and also to distribute load/stress when the jar is dropped so as to reduce incidence of damage to the handle and/ or the jar. In an alternate implementation, as

seen in Fig. 2b, the jar contact areas (7a, 7b) are substantially reduced. The first region (2) also comprises a top rib (8), which is in continuous connection with the jar contact areas (7a, 7b) and is in adhesive contact with the jar outer body. The first region (2) further also comprises a bottom rib (9), the bottom rib (9) comprising a recessed U-shaped section (10) which is not in contact with the jar surface. The distance between the top rib (8) and the bottom rib (9) is in the range of 10-35mm depending upon the jar and handle dimensions.
Figure 3 illustrates the top view of the first region (2) of the handle (1). As seen in Fig. 3, the span of the first region (2) of the handle (1) is the range of 40-120mm. The first region (2) connects with the transition region (4) via a tapered section (11), which is defined by a curvature (r3) in the range of 20-100mm. The width of the second region (3) is in the range of 20-35mm.
Figure 4 illustrates a side view of the handle (1) of the present invention. As seen in Fig. 4, the height (h) of the handle (1) is in the range of 90-130mm, while the length (l) of the handle measured as extending from the jar surface to the part of the handle (1) which is substantially vertical, is in the range of 50-80mm.
The particular structural aspects and features of the handle (1) of the present invention as disclosed herein contribute to the technical advancement (damage resistance) of the invention, which is realized by the handle (1) and the jar to which the handle (1) is attached. The damage resistance is achieved by efficacious force dissipation by the handle when dropped from a height.
In a particular non-limiting exemplification of the invention of the present invention, there is provided a handle (1), whereby the outer curvature (r1) of the transition region (4) is 14mm; the inner curvature (r2) of the transition region (4) is 15mm; the height of a single corrugation (5) is 6.5mm; the height of the corrugation region (5) is 30mm; the attaching means (6a, 6b) are spaced 30mm apart; the distance between the top rib (8) and the bottom rib (9) (width of the handle (1) contacting the jar body) is 20mm; span of the first region (2) (jar attachment region) is 101mm; curvature (r3) of the tapered section (11) connecting the first region (2) to

the transition region (4) is 44mm; distance between the bottom rib (9) and top of the corrugation region (5) is 7mm; and the handle (1) height is 117mm.
Figure 5 illustrates in a graphical format the distribution of force experienced by the handle (1) when it is dropped from a height as compared to an ordinary handle as known in the art. As seen in Fig. 5, the handle of the state of art (black line) experiences a high degree of force (y-axis) in the initial impact time (x-axis) (see peak) with negligible force dissipation along the time (x) axis. This concentration of force results in damage to the handle (1) and can also cause damage to the jar itself. In contrast, the handle (1) of the present invention, when exposed to the same impact, (orange line) does not show any initial peak (force), and instead, a plateau like curve can be seen as a function of time, which is indicative of the fact that the force is not concentrated in any particular time window and that the impact force has been effectively dissipated. This dissipation of force saves the handle (1) from damage and also the jar from damage.
Fig 6a-b shows the stress distribution of the jar body upon impact. Fig. 6a shows the stress distribution of a jar body attached to a conventional handle as known in the art. It can be readily appreciated from the heatmap that upon impact, there is a large concentration of force on a relatively small area of the jar body (red areas). It is to be noted that orange, yellow, green, and blue depicts areas of lower force in decreasing order respectively. The large concentration of force on the jar body results in jar body damage and also damages the handle causing breakage. In contrast, as seen in Fig. 6b, for the same amount of impact force, the jar body attached to the handle of the present invention does not show any substantive areas of force concentration. In fact, the areas of the jar are majorly blue color coded, which is indicative of minimal force concentration, indicative of effective force dissipation across the jar surface, as a result of which, the jar is not damaged.
Collectively, in view of Fig. 5 and Fig. 6a-b, it is demonstrated that the jar handle (1) of the present invention is superior over jar handles known in the art and

is superior in affording protection to the jar body against damage due to accidental drops, and is also effective in withstanding damage to the handle itself.
ADVANTAGES OF THE PRESENT INVENTION
The assembly of the structural features of the handle (1) of the present invention is able to more effectively distribute the load/stress on the handle when a jar is accidentally/ inadvertently dropped from a height, as a result of which, the jar body is not dented/ deformed, and breakage of the handle is also reduced/ avoided. Additionally, the handle (1) of the present invention is user friendly. Further, the handle construction/ assembly conforms to military grade MIL-STD-810H. In particular, without being limited to the following features of the handle (1) of the present invention, the advantages of the handle (1) is realized by: the contact surface area (jar contact areas); avoiding contact at bottom (to prevent jar denting) (recessed section in bottom rib); optimize distance between the attaching means; addition of corrugated region and optimization of location of the corrugated region. List of reference numerals:
(1) handle for a container;
(2) a first region of the handle;
(3) a second region of the handle;
(4) a transition region of the handle connecting the first and second region of the handle;
(5) corrugation region comprised in transition region of the handle;
(r1) outer curvature of the transition region of the handle;
(r2) inner curvature of the transition region of the handle;
(x) height of a single corrugation region;
(y) height of the corrugation region;
(6a, 6b) attaching means comprised in first region of the handle;
(7a, 7b) jar contact areas comprised in first region of the handle;
(8) top rib comprised in the first region of the handle;
(9) bottom rib comprised in the first region of the handle;

(10) recessed section comprised in the bottom rib;
(11) tapered section connecting first region to transition region of the handle; (r3) curvature of tapered section;
(z) vertical distance between bottom rib and top of corrugation region; (h) handle height; (l) handle length.

We claim:
1. A handle (1) for a container, the handle comprising:
a. a first region (2);
b. a second region (3); and
c. a transition region (4) connecting the first region (2) and the second
region (3),
wherein said transition region (4) has an outer curvature (r1); an inner curvature (r2); and comprises at least a corrugation region (5).
2. The handle (1) as claimed in claim 1, wherein the outer curvature (r1) and the inner curvature (r2) are independently in the range of 10-25mm.
3. The handle (1) as claimed in claim 1, wherein the height (x) of a single corrugation (5) is in the range of 3-15mm, and the height (y) of the corrugation region (5) is in the range of 10-60mm.
4. The handle (1) as claimed in claim 1, wherein the first region (2) comprises:
a. at least two attaching means (6a, b) to mechanically attach the first
region (2) of the handle (1) to the jar, the at least two attaching means
(6a, b) are spaced 30-80mm apart; and
b. at least two jar contact areas (7a, b) extending laterally away from at
least two attaching means (6a, b).
5. The handle (1) as claimed in claim 4, wherein the said at least two jar contact
areas (7a, b) are spaced apart from the at least two attaching means (6a, b).

6. The handle (1) as claimed in claim 4, wherein the first region (2) further
comprises:
a. a top rib (8) configured to be in contact with the jar outer body; and
b. a bottom rib (9) configured to be in contact with the jar outer body,
wherein the bottom rib (9) comprises at least a recessed section (10)
configured to not be in contact with the jar,
wherein the distance between the top rib (8) and the bottom rib (9) is in the range of 10-35mm.
7. The handle (1) as claimed in claim 1, wherein the span of the first region (2) is in the range of 40-120mm; the span of the second region (3) is in the range of 20-35mm; and the first region (2) connects to the transition region (4) via a tapered section (11) having a curvature (r3) in the range of 20-100mm.
8. The handle (1) as claimed in claim 3 and 6, wherein the vertical distance (z) between the bottom rib (9) and the top of the corrugation region (5) is in the range of 0-30mm.
9. The handle (1) as claimed in claim 1, wherein said handle (1) height (h) is in the range of 90-130mm.
10. The handle (1) as claimed in claim 1, wherein said handle (1) is of military grade MIL-STD-810H.