Claims:We claim:
1. A lever controlled fertilizer spreader (11) comprising:
a storage tank (12) adapted to receive and store the fertilizer;
a lever controller (15) provided for controlling the spreading of the fertilizer;
a discharge section having a converged portion (16) and discharge tube (19)wherein the fertilizer is received at discharge tube by operating the lever controller (15) and converged portion (16) increases the discharge rate.
2. The lever controlled fertilizer spreader (11) as claimed in claim 1 is a backpack type fertilizer spreader.
3. The lever controlled fertilizer spreader (11) as claimed in claim 1 further comprising hook (13) for holding the fertilizer spreader (11) at the shoulder by using belts.
4. The lever controlled fertilizer spreader (11) as claimed in claim 1, wherein the lever controller (15) connected in a way to control a gradual and/or permanent opening hole.
5. The lever controlled fertilizer spreader (11) as claimed in claim 1, wherein a handle (18) is provided for guiding the discharge tube (19) at the middle portion without affecting discharge.
6. The lever controlled fertilizer spreader (11) as claimed in claim 1, wherein the storage tank(12) is preferably of trapezoidal shape and having a curvature for comfort wearing by a user.
7.The lever controlled fertilizer spreader (11) as claimed in claim 1, wherein a gradual and/or permanent opening hole is provided which are adjustable.
8.The lever controlled fertilizer spreader (11) as claimed in claim 1, wherein the lever controller (15) is having rotary disk for facilitating the controlled discharge of fertilizer by a plurality of discharge holes (27).

9. A backpack type fertilizer spreader (11) adapted to be wearable by a user, the backpack type fertilizer spreader (11) comprising:
a storage tank (12) adapted to receive and store the fertilizer;
a lever controller (15) provided for controlling the spreading of the fertilizer;
a discharge section having a converged portion (16) and discharge tube (19)wherein the fertilizer is received at discharge tube by operating the lever controller (15) and converged portion (16) increases the discharge rate, and
a hook (13) for holding the fertilizer spreader (11) at the shoulder by using belts.
10. The backpack type fertilizer spreader (11) as claimed in claim 9, wherein the controller lever controller (15) is manually operable and is preferably provided on any of the either sides of the backpack type fertilizer spreader (11).

Dated this 29th day of March 2018

Bency Varghese
Patent Agent (Mission Legal)
, Description:Form 2

The Patents Act 1970

(39 of 1970)

&

The Patent Rules, 2003

COMPLETE SPECIFICATION

(Section 10 and Rule 13)

A LEVER CONTROLLED FERTILIZER SPREADER

K. RAMAKRISHNAN COLLEGE OF ENGINEERING
Kariyamanikam Road, Samayapuram,
Trichy – 621112, Tamilnadu, India

The following specification particularly describes the invention and the manner in which it is to be performed.

FIELD OF INVENTION
[0001] The present invention relates to the field of agricultural tools and machines. More specifically, the present invention is related to a specially designed lever controlled fertilizer spreader for uniform spreading agricultural products such as fertilizer in an agricultural field.
BACKGROUND
[0002] Various agro-products such as fertilizers are utilized to enhance the quality plant/crop growth by providing essential nutrients to soil. Fertilizers provide plants with the essential chemical elements needed for growth particularly nitrogen, phosphorus and potassium. Further, other agro-products such pesticides and herbicides are distributed in the field to keep weeds and pests away from destroying the crops and to add more nutrients to the soil.
[0003] In prior art various devices are known for distributing the agro-product in the agricultural field. These devices include handheld Spreader/spreader which is generally operated by a handle in order to spread form the bin attached to the spreader. The bin in such types of distributers/spreaders is relatively small. Thus, these machines are not suitable for medium and large size of field. Apart from the above, wearable distributer/spreader are also available. In these, storage tank of the spreader is worn on the back/chest of a person. The method requires a lot of human effort. Therefore, in these known Spreader/spreaders, the rate of distribution may vary based on the random movement of handle or based on the speed of walking. In addition, these spreader/spreaders provide no specific mechanism to control direction of distribution.
[0004] Further, few mechanized Spreader/spreaders are available to save human effort and to control the rate of distribution using a controller which sends the signal to the dispenser in order to spread the fertilizer. The dispenser may include rotary discs in order to distribute the material in inward and outward direction. In these types of spreaders, generally, a storage tank filled with fertilizer is towed by the vehicle. To run these machines, a huge amount of electricity is required which makes it cost inefficient. Due to the size of vehicles, particularly the thickness of conventional wheels affects the growth of plant and many times ruins plants and crops.
[0005] Therefore, despite of the advancement offered by the references as disclosed in prior art, a need remains for further improvements, particularly with regard to uniform spreading of agro-products in every direction without affecting the quality of crop/plant. In view of aforementioned, it is required to provide a control mechanism that can overcome the limitations and disadvantages of the prior arts.
SUMMARY OF THE INVENTION
[0006] Embodiments of the present invention disclose a designed lever controlled fertilizer spreader. The lever controlled fertilizer spreader comprises a storage tank adapted to receive and store the fertilizer; a lever controller provided for controlling the spreading of the fertilizer and a discharge section having a converged portion and discharge tube. In an aspect of the present invention, the fertilizer is being received at discharge tube by operating the lever controller and converged portion increases the discharge rate.
[0007] In another aspect of the present invention, the lever controlled fertilizer spreader is backpack type. In a further aspect of the present invention, the backpack type fertilizer spreader is provided which is designed to increase the uniform rate of fertilizer distribution by controlling the discharge and direction of distribution.

OBJECTS OF THE INVENTION
[0008] It is an object of the present invention to provide a lever controlled fertilizer spreader specially designed for uniform distribution of fertilizers at the top of the plants without affecting growth of plants. The uniform distribution of the fertilizer is to provide the uniform growth of plants.
[0009] It is another object of the present invention to provide a lever controlled fertilizer spreader which reduces the human effort and manpower consumed in spreading the field with a backpack design with curvature for comfort wearing the fertilizer spreader.
[0010] It is another object of the present invention to provide a lever controlled fertilizer spreader which is designed to minimize the time taken for distributing and spreading the fertilizer in the field.
[0011] It is a further object of the present invention to provide a lever controlled fertilizer spreader which is designed to improve the growth of the plant without affecting productivity.
[0012] It is yet an object of the present invention to provide a compact lever controlled fertilizer spreader.
BRIEF DESCRIPTION OF DRAWING
[0013] Other objects, features, and advantages of the present subject matter will be apparent from the following description when read with reference to the accompanying drawings. Drawings are illustrated with different views according to different embodiments of the invention:
[0014] FIG. 1 is a schematic of side view of a lever controlled fertilizer spreader (11);
[0015] FIG. 2 is a schematic of side view of a lever controller (15) provided to operate a lever controlled fertilizer spreader (11);
[0016] FIG. 3 is a schematic of top view of a lever controller (15)provided to operate a lever controlled fertilizer spreader (11);
[0017] FIG. 4 is a schematic of isometric view of a lever controller (15)provided to operate a lever controlled fertilizer spreader (11);
[0018] FIG. 5 is a schematic of top view of a lever controlled fertilizer spreader (11);
[0019] FIG. 6 is a schematic of bottom view of a lever controlled fertilizer spreader (11), and
[0020] FIG. 7 is a schematic of isometric view of a lever controlled fertilizer spreader (11).
[0021] Following are the elements of the invention as represented in drawings: lever controlled fertilizer spreader(11), storage tank(12), hook (13), bearing connector (14), lever controller (15), converged portion (16), collector (17), handle (18), flexible tube (19), bearing (25), rotary disk (26) and discharge hole (27).
DETAILED DESCRIPTION OF EMBODIMENTS
[0022] The present invention will now be described in brief with reference to the accompanying drawings. Now, refer in more detail to the exemplary drawings for the purposes of illustrating non-limiting embodiments of the present invention.
[0023] In a preferred embodiment of the present invention, the ‘fertilizer’ is a preferably granular fertilizer.
[0024] As used herein, the term ‘field’ is interchangeably used for ‘land’, ‘garden’ or ‘harvesting field’. Within scope of the present invention the ‘field’ refer an open/closed/partially closed area, especially, one planted or to be planted with crops or pasture.
[0025] FIG. 1 is the side view of the lever controller (15) in a lever controlled fertilizer spreader (11). In the embodiment, the lever controlled fertilizer spreader (11) is backpack type which includes a storage tank (12)which is used to store the granular fertilizer in that area. The bottom of the discharge tube(19) is carrying the separated fertilizer to near the plant surface. The handle (18) is provided for guiding the discharge tube (19) at the middle portion without affecting discharge. The bottom view of the converged portion (16) increases the discharge rate at uniformly. The hook (13) is provided for holding the backpack type lever controlled fertilizer spreader (11) at the shoulder by using belts. The lever controller (15) motion from top to bottom is for discharge. In minimum distance between the plants there is only opening and closing required.
[0026] FIG. 2 is the side view of the backpack type lever controlled fertilizer spreader (11) in accordance with an embodiment of the present invention. The rotary bearings (25) are provided at the ends of rotary disk to operate the lever controller (15) in mechanism in smooth ways. The rotary bearing (25) are arranged using the bearing connector (14). The lever controller (15) is connected to control the gradual and permanent opening.
[0027] In an embodiment of the present invention, the storage tank (12) is preferably of trapezoidal shape and having a curvature for comfort wearing by a user. In other embodiments, the storage tank (12) can be rectangle, square, circle or ellipse shape.
[0028] FIG. 3 is the top view of the lever controlled fertilizer spreader (11) and the bottom of the discharge tube (19) is carrying the separated fertilizer to near the plant surface.
[0029] FIG. 4 is the isometric view of the lever controlled fertilizer spreader (11) and the handle (18) is provided for guide the discharge tube (19) at the middle portion without affecting discharge. The bottom view of the converged portion (16) increases the discharge rate at uniformly.
[0030] FIG. 5 is the top view of the lever controlled fertilizer spreader (11). In an embodiment of the present invention a hook (13) is provided for holding the backpack type fertilizer spreader (11) at the shoulder by using belts.
[0031] FIG. 6 is the bottom view of a lever controlled fertilizer spreader (11). As shown in figure, in an embodiment of the present invention, the lever controller (15) is adapted to move from top to bottom for discharging the fertilizer. In minimum distance between the plants there is only opening and closing required.
[0032] The rotary bearings (25) are provided at the ends of rotary disk to operate the lever controller (15) in mechanism in smooth ways.
[0033] FIG. 7 is the side view of the lever controller (15) in lever controlled fertilizer spreader. The lever controller (15) is also connected to the gradual and permanent opening systems in that design.
[0034] The scope of the present invention is not limited to fertilizers. The invention can be utilized for spreading other agricultural products such as pesticides, herbicides, fungicide, neonicotinoidm, insecticides and other organic and/or inorganic compounds which are suitable for harvests.
[0035] As will be readily apparent to those skilled in the art, the present invention may easily be produced in other specific forms without departing from its essential characteristics. The present embodiments is, therefore, to be considered as merely illustrative and not restrictive, the scope of the invention being indicated by the claims rather than the foregoing description, and all changes which come within therefore intended to be embraced therein.