Description:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
AND
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)
1. TITLE OF THE INVENTION
A DEVICE ASSISTING IN DRAWING SHAPES
2. APPLICANT (S)
NAME NATIONALITY ADDRESS
KOKUYO CAMLIN LIMITED AN INDIAN COMPANY 48/2, HILTON HOUSE, MIDC CENTRAL ROAD, MAROL MIDC INDUSTRY ESTATE, MIDC, ANDHERI EAST, MUMBAI, MAHARASHTRA 400093, INDIA
3. PREAMBLE TO THE DESCRIPTION
COMPLETE SPECIFICATION
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE INVENTION
[0001] The present invention relates to a device assisting in drawing shapes. More specifically, the present invention relates to a device assisting in drawing shapes with at least one edge having a profile that enables easy lifting of the device by a human using one or more fingers or fingernails or combinations of one or more fingers and fingernails.
BACKGROUND OF THE INVENTION
[0002] In the contemporary world, many devices have been devised to assist drawing and writing. For example, scale, protractor, set squares etc., assist in drawing multiple shapes with precision. The examples mentioned above are essential devices familiar to laypeople, even children. The present invention is not limited to these devices provided for ease of understanding.
[0003] In the known art, these devices, for example, the scale, may have a rectangular shape with four edges, an upper surface, and a lower surface. The scale has graduations configured thereon for facilitating length measurement. Typically, the scale is placed over a surface of the object whose length is to be measured, such that the lower surface of the scale is placed in contact with the surface of the object, and the graduations facilitate the measurement of the length of the object. The width of the scale may be of few millimeters. Typically, the width or thickness of the scale or any such device may be 0.5 mm to 5 mm at most.
[0004] While measuring such dimensions, for example, length, it may be required to lift the device (scale in the above case) many times and place it at different positions. Typically, the device is lifted by hand, especially by fingers and maybe nails. The known devices present some problems, especially while lifting the devices.
[0005] When a human attempts to lift a device having a thickness in the range of 0.5 mm to 5 mm, the device is not easy to lift as the thickness is small that makes the lifting of the device non-ergonomic and difficult.
[0006] While attempting to lift the device, there is always a possibility, due to the less thickness, that the edge of the device may hurt the fingers of a person lifting the device or may penetrate the finger or may penetrate between the nail’s lower surface and the finger’s upper surface.
[0007] Also, there is a possibility that the edge of the device may slip from the fingers and the nails of the user thereby rendering the lifting of the device inconvenient.
[0008] Thus, there is a need to provide remedy for the situation mentioned above. In other words, there is an urgent need to provide devices that do not hurt the person lifting the devices nor cause any harm thereto. Further, there is need to provide devices which reduce or eliminate the inconvenience caused by the conventional devices during lifting. Further, there is a need to provide easy and ergonomic devices to use and lift.
OBJECTS OF THE INVENTION
[0009] Some of the objects of the presently disclosed invention, of which at the minimum one object is fulfilled by at least one embodiment disclosed herein, are as follows:
[00010] An object of the present invention is to provide an alternative that overcomes at least one drawback encountered in the existing prior art;
[00011] Another object of the present invention is to provide a device that assists the drawing of shapes and measuring;
[00012] Still another object of the present invention is to provide a device assisting in drawing of shapes and measuring, which is easy and ergonomic for humans to use and lift; and
[00013] Yet another object of the present invention is to provide a device assists in drawing of shapes and measuring, which reduces and eliminates the possibility of hurting or penetrating the human’s fingers while lifting the same.
[00014] Other objects and benefits of the present invention will be more apparent from the following description, which is not intended to bind the scope of the present invention.
SUMMARY OF THE INVENTION
[00015] Disclosed is a device assisting in drawing shapes that has at least one edge having a profile that enables easy lifting of the device by a human using one or more fingers or fingernails or combinations of one or more fingers and fingernails.
[00016] The device assisting drawing of shapes comprises a body defined by and between an operative top surface, an operative bottom surface. The device further includes at least one of at least one primary drawing edge and at least one secondary drawing edge, wherein the at least one of the at least one primary drawing edge, and the at least one secondary drawing edge having a profile that facilitates easy lifting of the device by a human using a using one or more fingers or fingernails or combinations of one or more fingers and fingernails.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
[00017] The present invention will now be described with the help of the accompanying drawing, in which:
[00018] FIG. 1 illustrates a schematic diagram of a portion of a set square in accordance with the embodiments of the present invention.
[00019] FIG. 2 illustrates a schematic diagram of a protractor in accordance with the embodiments of the present invention.
[00020] FIG. 3 illustrates a schematic diagram of a scale in accordance with the embodiments of the present invention.
[00021] FIG. 4 illustrates a schematic line diagram of the profile of the devices of FIG. 1, FIG. 2, and FIG. 3 in accordance with the embodiments of the present invention.
DETAILED DESCRIPTION
[00022] All technical terms and scientific expressions used in the present invention have the same meaning as understood by a person skilled in the art to which the present invention belongs unless otherwise specified.
[00023] As used in the present specification and the claims, the singular forms “a,” “an,” and “the” include plural references unless the context dictates otherwise.
[00024] The term "comprising” as used in the present specification will be understood to mean that the list following is non-exhaustive and may or may not include any other extra suitable things, for instance, one or more additional feature(s), part(s), component(s), process step(s), sub-step(s), and /or constituent(s) as applicable.
[00025] Further, the terms “about” and “approximately" used in combination with ranges of sizes of parts, particles, compositions of mixtures, and any other physical properties or characteristics are meant to include slight variations that may occur in the upper and lower limits of the ranges.
[00026] The present invention relates to a device assisting in drawing shapes that have at least one edge having a profile that enables easy lifting of the device by a human using one or more fingers or fingernails or combinations of one or more fingers and fingernails.
[00027] The present invention is described with reference to the accompanying drawing, wherein FIG. 1 illustrates a schematic diagram of a portion of a set square in accordance with the embodiments of the present invention, FIG. 2 illustrates a schematic diagram of a protractor in accordance with the embodiments of the present invention, FIG. 3 illustrates a schematic diagram of a scale in accordance with the embodiments of the present invention, and FIG. 4 illustrates a schematic line diagram of the profile of the devices of FIG. 1, FIG. 2 and FIG. 3 in accordance with the embodiments of the present invention.
[00028] In accordance with the embodiments of the present invention, a device (100) assisting drawing of shapes is disclosed. The device (100) comprises a body (102). The body (102) may be made of one material selected from the group consisting of a metal, non-metal, metal alloy, and any combinations thereof.
[00029] In accordance with one embodiment of the present invention, the body (102) is made of a metal selected from the group consisting of steel, iron, aluminum, and combinations thereof.
[00030] In accordance with one embodiment of the present invention, the body (102) is made of wood.
[00031] In accordance with one embodiment of the present invention, the body (102) is made of plastic, which may be one type of plastic selected from the group consisting of Polystyrene, PET, polypropylene, PMMA, SAN, ABS, PC or any other plastic and combinations thereof.
[00032] The body (102) is defined by and between an operative top surface (102a), an operative bottom surface (102b), at least one of at least one primary drawing edge (102e1); and at least one secondary drawing edge (102e2), wherein the at least one of the at least one primary drawing edge (102e1), and the at least one secondary drawing edge (102e2) having a profile (104) that facilitates easy lifting of the device (100) by a human using a using one or more fingers or fingernails or combinations of one or more fingers and fingernails.
[00033] In accordance with one embodiment of the present invention, the provision of the profile (104) on at least one of the primary and the at least one secondary drawing edges facilitates in the lifting of the device, wherein the profile (104) is such that is affords easy and safe lifting of the device under consideration.
[00034] In accordance with one embodiment of the present invention, the device (100) can be selected from the group consisting of a protractor, a scale, a ruler, and a set square. It is to be noted that the above-mentioned examples are just for reference, and the present invention is not limited to these. Any other device is well within the ambit of the present invention.
[00035] In accordance with one embodiment of the present invention, the profile (104) comprises a smooth or a non-smooth contour. The term smoot contour refers to the fact that the contour may not have any sharp edges or corners or the like, which is an additional safety feature. However, there may be devices wherein non-smooth contours may be inevitable for precision or working or use of the device as a drawing aid or the like. In such cases, the contour may have at least at and around some portion edges or corners. In some cases, the device edges may have smooth and non-smooth contours. In other examples, a single edge of the device may have smooth and non-smooth contours.
[00036] In accordance with one embodiment of the present invention, the profile (104) comprising a smooth contour, or a non-smooth contour is configured over the complete length of the at least one of the at least one primary drawing edge (102e1) and the at least one secondary drawing edge (102e2).
[00037] In accordance with one embodiment of the present invention, the profile (104) comprising a smooth contour or non-smooth contour is configured over a part of the length of the at least one of the at least one primary drawing edge (102e1), and the at least one secondary drawing edge (102e2).
[00038] In accordance with one embodiment of the present invention, the profile (104) comprising at least one contour defined by a first portion (104a) extending from an outer periphery of the operative top surface (102a), a second portion (104b) extending from a free end of the first portion (104a), and a third portion (104c) extending from a free end of the second portion (104c).
[00039] It is to be noted that though the profile (104) is defined as having at least one portion, the present invention is not limited to the above embodiment. In some other embodiments, the number of portions maybe more than one. In one embodiment, the number of portions may be two. In another embodiment, the number of portions may be three. In still another embodiment, the number of portions may be four, and so on.
[00040] In accordance with one embodiment of the present invention, the first portion (104a) makes an angle ?1 with respect to an axis parallel to the operative top surface (102a), the second portion (104b) makes an angle ?2 with respect to a vertical axis perpendicular to the operative top surface (102a), and the third portion (104c) makes an angle ?3 with respect to the axis parallel to the operative top surface (102a).
[00041] In accordance with one embodiment of the present invention, the first portion (104a) is curved with a radius of curvature in the range of 0 mm to 5 mm, the second portion (104b) is curved with a radius of curvature in the range of 0 mm to 10 mm, and the third portion (104c) is curved with a radius of curvature in the range of 0.5 mm to 3 mm.
[00042] In accordance with one embodiment of the present invention, the first portion (104a) has a perimeter in the range of 0 mm to 2 mm, the second portion (104b) has a perimeter in the range of 0 mm to 3 mm, and the third portion (104c) has a perimeter in the range of 0.5 mm to 5 mm.
[00043] In accordance with one embodiment of the present invention, ?1 is in the range of 0? to 180?, ?2 is in the range of 0? to 180? and ?3 is in the range of 0? to 90?. As meant herein, the angle ranges are designed to include both smooth and non-smooth contours
, Claims:We claim:
1. A device (100) assisting drawing shapes, the device (100) characterized by having:
a body (102) defined by and between:
an operative top surface (102a);
an operative bottom surface (102b);
at least one of at least one primary drawing edge (102e1); and at least one secondary drawing edge (102e2);
wherein the at least one of the at least one primary drawing edge (102e1), and the at least one secondary drawing edge (102e2) having a profile (104) that facilitates easy lifting of the device (100) by a human using a using one or more fingers or fingernails or combinations of one or more fingers and fingernails.
2. The device (100) as claimed in claim 1 is one device (100) selected from the group consisting of a protractor, a scale, a ruler, and a set square.
3. The device (100) as claimed in claim 1, wherein the profile (104) comprises a smooth contour or a non-smooth contour.
4. The device (100) as claimed in claim 1, wherein the profile (104) comprising a smooth contour or a non-smooth contour which is configured over the complete length of the at least one of the at least one primary drawing edge (102e1), and the at least one secondary drawing edge (102e2).
5. The device (100) as claimed in claim 1, wherein the profile (104) comprising a smooth contour or non-smooth contour is configured over a part of the length of the at least one of the at least one primary drawing edge (102e1), and the at least one secondary drawing edge (102e2).
6. The device (100) as claimed in claim 1, wherein the profile (104) comprising at least one contour defined by
- a first portion (104a) extending from an outer periphery of the operative top surface (102a);
- a second portion (104b) extending from a free end of the first portion (104a), and
- a third portion (104c) extending from a free end of the second portion (104c).
7. The device (100) as claimed in claim 6, wherein the first portion (104a) making an angle ?1 with respect to an axis parallel to the operative top surface (102a), the second portion (104b) making an angle ?2 with respect to a vertical axis perpendicular to the operative top surface (102a), and the third portion (104c) making an angle ?3 with respect to the axis parallel to the operative top surface (102a).
8. The device (100) as claimed in claim 7, wherein the first portion (104a) being curved with a radius of curvature in the range of 0 mm to 5 mm, the second portion (104b) being curved with a radius of curvature in the range of 0 mm to 10 mm, and the third portion (104c) being curved with a radius of curvature in the range of 0.5 mm to 3 mm.
9. The device (100) as claimed in claim 7, wherein the first portion (104a) having a perimeter in the range of 0 mm to 2 mm, the second portion (104b) having a perimeter in the range of 0 mm to 3 mm, and the third portion (104c) having a perimeter in the range of 0.5 mm to 5 mm.
10. The device (100) as claimed in claim 7, wherein
- ?1 is in the range of 0? to 180?;
- ?2 is in the range of 0? to 180?; and
- ?3 is in the range of 0? to 90?.
Dated this 19th day of February 2023
For the Applicant

Abhishek Choudhury
The Applicant’s Patent Agent
IN/PA – 1578
To,
The Controller of Patents
The Patent Office,
At Mumbai