WO2015015434A2

WO2015015434A2 - A mosquito repellent lamp working on liquid fuel, with or without electricity

Info

Publication number: WO2015015434A2
Application number: PCT/IB2014/063544
Authority: WO
Inventors: Rajesh Goyal
Original assignee: Rajesh Goyal
Priority date: 2013-08-01
Filing date: 2014-07-30
Publication date: 2015-02-05
Also published as: WO2015015434A3

Abstract

The present invention relates to a mosquito repellent lamp working on liquid fuel along with or without electricity. More particularly, the present invention is specifically related to an improved heating mechanism in the mosquito repellent lamp that enables the same lamp working both as mosquito repellent mat heater (MRMH) and mosquito repellent liquid vaporizer (MRLV) either independently or jointly, with or without electricity. The present mosquito repellent lamp having provision of heating the mosquito repellent mat and / or mosquito repellent liquid refill, so that after heating the mat and/ or liquid refill, the mosquito repellent ingredients absorbed in the mat and/or liquid refill get vaporized and spread in the atmospheric air and killing harmful mosquitoes. More particularly, the heating of mosquito repellent mat and / or mosquito repellent liquid refill is activated either by electric supply or by a flame generated by burning of liquid fuel such as kerosene and diesel in the lamp, or combination of both.

Description

A MOSQUITO REPELLENT LAMP WORKING ON LIQUID FUEL, WITH

OR WITHOUT ELECTRICITY

FIELD OF INVENTION

The present invention relates to a mosquito repellent lamp working on liquid fuel along with or without electricity. More particularly, the present invention is specifically related to an improved heating mechanism in the mosquito repellent lamp that enables the same lamp working both as mosquito repellent mat and mosquito repellent liquid refill either independently or jointly, with or without electricity. The present mosquito repellent lamp having provision of heating the mosquito repellent mat and / or mosquito repellent liquid refill, so that after heating the mat and/ or liquid refill, the mosquito repellent ingredients absorbed in the mat and/or liquid refill get vaporized and spread in the atmospheric air and killing harmful mosquitoes. More particularly, the heating of mosquito repellent mat and / or mosquito repellent liquid refill is activated either by electric supply or by a flame generated by burning of liquid fuel such as kerosene and diesel in the lamp, or combination of both.

BACKGROUND AND PRIOR ART OF INVENTION

It is known in the market that device for electric mosquito mat heater and electric mosquito liquid vaporizer are available that operates only on electricity. The said devices are basically available as two separate devices and both independently working on electric supply. It is also known that in said devices comprises a heating mechanism whereby there is one metal or alloy plate and hollow cylinder, which remain in the contact or vicinity of heating element. The heating element is heated by supplying electricity.

In case of mosquito repellent mat, the heating element heats plate and plate heats mosquito repellent mat, placed on the plate. On heating, mosquito repellent mat, mosquito repellent ingredients absorbed in the mat get vaporized and spread in the atmospheric air and killing harmful mosquitoes. However, in case of mosquito repellent liquid vaporizer, mosquito repellent liquid is filled in a small bottle. This mosquito repellent liquid is absorbed by a rod. The rod is submerged in the liquid and small portion is outside the bottle. This bottle, with rod and liquid is known as mosquito repellent liquid refill pack. The upper part of rod of mosquito repellent liquid refill is fitted in a metal or alloy hollow cylinder. The inner diameter of hollow cylinder is more than outer diameter of rod. The hollow cylinder is in vicinity of heating element. The hollow cylinder gets heated by supplying electricity to heating element. After heating hollow cylinder, the rod gets heated and vaporizes mosquito repellent liquid. The mosquito repellent ingredients absorbed in the rod get vaporized and spread in the atmospheric air and killing harmful mosquitoes.

However, the inventor of the present invention has identified following limitations of the existing devices as explained above.

1. The existing mosquito repellent devices are not capable of working without electricity.

2. There is no single mosquito repellent device available whereby the user can select the mode of mosquito repulsion either by mosquito repellent mat or mosquito repellent liquid refill pack or both.

3. In addition, there is no mosquito repellent device available, whereby the user has a close control over heating element i.e. either increasing or decreasing the temperature of heating element and maintaining a desired temperature range for varying the activation of mosquito repellent device, even though the device is working on electricity.

The said limitation become more critical where there is a huge scarcity of electricity. More particularly the developing countries like India, where power supply is unavailable or interrupted frequently, the user is not able to use such mosquito repellent devices. Hence, the users get infected by mosquito bites and leads to death.

Hence, the inventor of the present invention, made a solution to the above-said limitations, by providing a mosquito repellent lamp working on liquid fuel along with or without electricity. The present mosquito repellent lamp is capable to work on kerosene and diesel as a liquid fuel. In the present mosquito repellent lamp, user can select the mode of mosquito repulsion either by mosquito repellent mat or mosquito liquid repellent refill pack or both. Also, the user will have a close control over temperature (i.e. either increasing or decreasing the temperature) of mosquito repellent mat or mosquito repellent liquid refill pack and maintain a desired temperature range for varying the activation level of mosquito repellent lamp, either by electric supply or by a flame generated by burning of liquid fuel or combination of both.

OBJECTIVES OF THE INVENTION The primary objective of the present invention is to provide a mosquito repellent lamp working on liquid fuel along with or without electricity.

Another objective of the present invention is to provide a mosquito repellent lamp where a user is able to select the mode of mosquito repulsion either by mosquito repellent mat or mosquito repellent liquid refill pack or both. Yet another objective of the present invention is to provide a mosquito repellent lamp, where a user will have a close control over temperature of thermistor i.e. either increasing or decreasing the temperature of thermistor and maintaining a desired temperature range for varying the activation of mosquito repellent lamp, either by electric supply or by a flame generated by burning of liquid fuel or combination of both.

SUMMARY OF THE INVENTION

The present invention relates to a mosquito repellentlamp working on liquid fuel along with or without electricity, comprising an assembly of fuel tank (1), a middle part or chamber (37) and a main plate (62), the said lamp comprising a Fuel tank (1), middle part (37), and main plate (62). All three parts can be detached from each other. Kerosene or diesel is filled in fuel tank (1). On the top surface of fuel tank (1), a level indicator (25) and burner (14) is fixed. Level indicator (25) shows fuel quantity in fuel tank (1). In the burner (14), fuel is burnt with the help of cotton wick (21). Burning of cotton wick (21) is a combustion process. During combustion, hot gases and smoke is produced. Middle part (37) is kept on the top surface of fuel tank (1). Middle part (37) covers the burner (14) which protects the flame of burner (14) from air. In the front of middle part (37) a window is made, which can be closed or opened with the help of plane rectangular glass (39). Back wall and middle wall (54) of middle part (37) have holes (51) and (55). Air comes from these holes (51) and (55) to burner (14) for combustion. Thus avoiding flame (22) of burner (14) to fluctuate due to air. Front portion of the middle part (37) and fuel tank (1) is having cuboids shape and back part is semi cylindrical shape. Base (56) is located at the upper part of middle portion (37). Main plate (62) is kept on base (56). Plate (66) is fitted in main plate (62). Boundary (67) and cylinder (71) are permanently attached in the lower surface of plate (66). Hole (68) is inside the boundary (67) of plate (66). Hole (72) is located in the center of cylinder (71). Part (69) is located at the side of hole (68). A hollow cylinder ( 70B) is attached above hole (68) with the help of screws. Hollow cylinder (70B) can be attached permanently on plate (66). In this case, hollow cylinder (70A) will be an integral part of plate (66). Cap (94) is fitted in hollow cylinder (70B) which is located on the top surface of main plate (62). Cap (94) is used in ventilation of hot gases and smoke produced during burning of fuel in burner (14). Due to peculiar shape of cap (94), hot gases and smoke can come out of cap (94) but air cannot enter through cap (94)

Main plate (62) can be rotated with the help of lever (86), which is being placed on base (56). Two stoppers (57) and (58) attached on middle part (37) that does not allow main plate (62) to rotate more than a fixed angle. By rotating main plate (62) in anti-clockwise direction to maximum, center of hole (68) remains above flame (22) of burner (14). In this case, only cap (94) gets heated.

However, while rotating main plate (62) in clockwise direction to maximum, center of part (69) remains above flame (22) of burner (14). In this case, only plate (66) gets heated. Hole (68) and part (69) both are located inside boundary (67). Therefore by rotating main plate (62) in clockwise or anticlockwise direction, flame (22) of burner (14) remains within boundary (67). Flame (22) is produced by burning fuel in burner (14). Plate (66) is kept in the way of hot gases and smokes. Hot gases and smokes transfer their heat to plate (66). In mosquito repellent lamp, with small flame (22), plate (66) is heated to maximum. To fix the height of flame (22), an indicator (23) is fixed in the burner.

Plate (66) is made of a metal or alloy which is a good conductor of heat as well as light in weight and cheap. To increase the time and area of gases coming in contact with plate (66), boundary (67) is made in plate (66). Main plate (62), which is placed on base (56) of middle part (37), can be rotated. Thus, either hole (68) or part (69) remains on top of flame (22) of burner (14). When part (69) is on top of flame (22), maximum heat is transferred to plate (66) with the help of part (69) and boundary (67).

Hot gases and smokes remain within boundary (67) and reach hole (68). After that it reaches at hollow cylinder (70B) and then cap (94) before coming to open atmospheric air. Plate (66) gets heated by heat transfer of hot gases and smokes. Cylinder (71) is connected with plate (66), therefore cylinder (71) also gets heated. Hole (72) is situated in the center of cylinder (71). Thus, required temperature is obtained in hole (72).

Below hole (72) of plate (66) on the lower surface of main plate (62), a mechanism (77) is attached. In this position, mosquito repellent liquid refill (100) is attached in mechanism (77) and used on flame based mosquito repellent liquid vaporizer. When flame (22) of burner (14) is above hole (68), then hot gases and smokes comes out of cap (94) through hollow cylinder (70B) , without heating plate (66). In this case, cap (94) gets heated and achieves required temperature on the top surface. A small size hollow cylinder (98) (whose one end is open and another end is closed) made up of iron sheet, is attached in the center of top surface of cap (94). The top surface of cap (94) is used as mosquito mat heater. On the top surface of cap (94) equipped with hole (108), mosquito repellent mat (107) is used. On the top surface of main plate (62), a socket (182) is attached at the side of cap (94). Electric supply is given with socket (182) either independently or jointly to electric mosquito mat heater and electric mosquito liquid vaporizer, which is fixed on plate (66) of main plate (62).

In the Electric heating mechanism for mosquito repellent mat (107) and mosquito repellent liquid refill (100), the Electric mosquito liquid refill heating mechanism and electric mosquito mat heating mechanism are attached above hole (72) of cylinder (71). These mechanisms are attached with plate (66). in one heating mechanisms. A user will have a close control over temperature (i.e. either increasing or decreasing the temperature) of mosquito repellent mat or mosquito liquid repellent refill pack and maintain a desired temperature range for varying the activation level of mosquito repellent lamp, with the help of electric mechanism.

BRIEF DESCRIPTION OF FIGURES

Further aspects and advantages of the present invention will be readily understood from the following detailed description with reference to the accompanying drawings. Reference numerals have been used to refer to identical or similar functionally similar elements. The figures together with a detailed description below, are incorporated in and form part of the specification, and serve to further illustrate the embodiments and explain various principles and advantages, in accordance with the present invention wherein:

Fig. 1 shows an isometric view of a mosquito repellent lamp according to the present invention.

Fig. 2 shows a Fuel Tank (1) of a mosquito repellent lamp according to the present invention.

Fig. 3 exhibits a Middle part (37) of a mosquito repellent lamp according to the present invention.

Fig. 4 shows a Middle part (37) of a mosquito repellent lamp according to the present invention.

Fig. 5 shows an Upper side of main plate (62) of a mosquito repellent lamp according to the present invention. Fig. 6 shows a Lower side of main plate (62) of a mosquito repellent lamp according to the present invention.

Fig. 7 shows a Lower part (2) of fuel tank (1) of mosquito repellent lamp according to the present invention.

Fig. 8 shows an Upper part (8) of fuel tank (1) of a mosquito repellent lamp according to the present invention.

Fig. 9 depicts Burner (14) to be used for burning cotton wick (21) of a mosquito repellent lamp according to the present invention.

Fig. 10 depicts a diagram showing hidden edges of burner (14) of a mosquito repellent lamp according to the present invention.

Fig. 11 depicts an Upper side of lower part (73) of main plate (62) of a mosquito repellent lamp according to the present invention.

Fig. 12 depicts Lower side of lower part (73) of main plate (62) of a mosquito repellent lamp according to the present invention.

Fig. 13 shows a Top cover (63) of main plate (62) of a mosquito repellent lamp according to the present invention.

Fig. 14 shows a metal or alloy sheet cover (78) for lower part (73) of main plate(62) of a mosquito repellent lamp according to the present invention.

Fig. 15 shows an Upper side of plate (66) of a mosquito repellent lamp according to the present invention.

Fig. 16 shows a Lower side of plate (66) of a mosquito repellent lamp according to the present invention.

Fig. 17 shows a Diagram showing attached hollow cylinder (70 B) above hole (68) at upper side

of plate(66) of a mosquito repellent lamp according to the present invention.

Fig. 18 shows a Diagram showing attached hollow cylinder (70 B) and cap (94) above hole (68) at upper side of plate (66) of a mosquito repellent lamp according to the present invention.

Fig. 19 depicts a Level indicator (25) of a mosquito repellent lamp according to the present invention.

Fig. 20 shows a Diagram showing hidden edges of level indicator (25) of a mosquito repellent lamp according to the present invention. Fig. 21 shows a Cap (94) of a mosquito repellent lamp according to the present invention.

Fig. 22 shows a Diagram showing hidden edges of cap (94) of a mosquito repellent lamp according to the present invention.

Fig. 23 shows an Outer hollow cylinder (97) of cap (94) of a mosquito repellent lamp according to the present invention.

Fig. 24 shows an Inner hollow cylinder (95) of cap (94) of a mosquito repellent lamp according to the present invention.

Fig. 25 shows a Handle (84) to be attached on main plate(62) of a mosquito repellent lamp according to the present invention.

Fig. 26 shows a Handle (85) and lever (86) to be attached jointly on main plate (62) of a mosquito repellent lamp according to the present invention.

Fig. 27 shows a Cover (36) to be placed on hollow cylinder (35) of a mosquito repellent lamp according to the present invention.

Fig. 28 depicts a Plane glass (39) to be fixed on window (38) of middle part (37) of a mosquito repellent lamp according to the present invention.

Fig. 29 depicts metal or alloy Sheet frame (43) to be fitted in the right channel (41) and left channel (40)

of middle part (37) of a mosquito repellent lamp according to the present invention. Fig. 30 shows a Middle wall (54) to be fitted in channels (52) and (53) of middle part(37) of a mosquito repellent lamp according to the present invention.

Fig. 31 shows a Handles (6) and (7) attached on fuel tank (1) of a mosquito repellent lamp according to the present invention.

Fig. 32 shows a Hollow cylinder (98) to be attached on upper surface of cap (94) of a mosquito repellent lamp according to the present invention.

Fig. 33 shows an insulating cover made of mica material for cover plate (113) of a mosquito repellent lamp according to the present invention.

Fig. 34 shows a plate (133) for assembling along with cover plate (113) of a mosquito repellent lamp according to the present invention.

Fig. 35 shows an insulating cover (137) to be placed below the cover plate (113) of a mosquito repellent lamp according to the present invention. Fig. 36 shows a mosquito repellent mat structure (107) which is being used in the mosquito repellent lamp of the present invention

Fig. 37 shows a mosquito repellent refill flask structure (100) which is being used in the mosquito repellent lamp of the present invention.

Fig. 38 shows a mosquito repellent mat structure (106) which is being used in the mosquito repellent mat heater of the prior art.

Fig. 39 shows an upper side of cover plate (113) for securing mat (107), refill flask (100) and four identical slots (115, 116, 117, 118, 119, 120, 121) for holding thermistor unit 1, 2, 3 and 4, of a mosquito repellent lamp according to the present invention.

Fig. 40 shows a lower side of cover plate (113) for securing mat (107), refill flask (100) and four identical slots (115, 116, 117, 118, 119, 120, 121) for holding thermistor unit 1, 2, 3 and 4 of a mosquito repellent lamp according to the present invention.

Fig. 41 shows a combined electric heating mechanism type 1, for maintaining temperature between 130°C to 175°C by varying the position of switches of electric heating mechanism of the present invention.

Fig. 42 shows a combined electric heating mechanism type 2, for maintaining temperature between 100°C to 125°C in one position and temperature between 130°C to 170°C in another position of switch of electric heating mechanism of the present invention.

Fig. 43 shows a combined electric heating mechanism type 3, for maintaining temperature between 100°C to 115°C in one position, between 120°C to 125°C in second position , and between 130°C to 175°C in third position, by varying the position of switches ON and OFF of electric heating mechanism of the present invention.

Fig. 44 shows a combined electric heating mechanism type 4, for maintaining any temperature range between 100°C to 175°C in four set of thermistor unit by incorporating potentiometer in electric heating mechanism of the present invention. Skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the drawings may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.

DETAIL DESCRIPTION OF THE INVENTION

While the invention is susceptible to various modifications and alternative forms, specific aspects thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternative falling within the spirit and the scope of the invention as defined by the appended claims. Before describing in detail embodiments it may be observed that the novelty and inventive step that are in accordance with the present invention resides in mosquito repellent lamp. Accordingly, the drawings are showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, device that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such setup or device. In other words, one or more elements in a system or apparatus proceeded by "comprises... a" does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus. The following paragraphs explain present invention with respect mosquito repellent lamp. The invention in respect of the same may be deduced accordingly. Accordingly, the present invention relate to a mosquito repellent lamp working on liquid fuel along with or without electricity, comprising an assembly of fuel tank (1), a middle part or chamber (37) and a main plate (62), the said lamp comprising a fuel tank (1) made in two detachable parts, namely, a lower part (2) and a upper part (8), whereby the bottom surface of upper part is provided with three holes , where upon the three cylindrical structures (11, 24, 35) are mounted, the said structures (11, 24, 35) being provided with a burner (14), a level indicator (25) and as fuel filling means (35) and thereby remain in communication with lower part of fuel tank where the liquid fuel is filled inside the fuel tank, a middle chamber or part (37) being detachably installed on the fuel tank (1) and provided with a window, covered with a transparent sheet at least at one face of the same and having multiple apertures on another face parallel to the of the transparent sheet face of the chamber; the bottom face of chamber is being open to connect with upper part of the fuel tank and the top face is provide with a base (56) at inner peripheral portion to install a main plate (62),

the main plate (62) is being installed in the middle chamber or part (37) on the base (56), the said main plate having lower part (73) whereby a boundary (74) is being created by protruding edges in L-shape, the said boundary (74) being adapted another L-shape metal plate (66), the said L-shape metal plate (66) are provided with holes (68, 72), one hole (72) for a mosquito repellent liquid refill rod (104) and another hole (68) for receiving the flame of burner,

the said 'L' shape plate (66), having one hollow cylinder (70A/ 70B) on hole

(68) on the top surface and also having cylindrical portion (71) on the hole (72) at lower surface of plate, the said plate also having irregular shape boundary (67) at lower surface around the hole (68), the boundary covers the hole (68) and adjacent portion (69) , and the said plate (66) below hole (72) at the lower surface of main plate (62) having a mechanism (77) for installing a mosquito repellent liquid refill for working of the lamp as Mosquito repellent liquid vaporizer (MRLV), ,

the said main plate (62) is being covered by top cover (63) and by lower metal or alloy sheet cover (78), in such a manner that while covering by top cover (63) a part of hollow cylinder (70B) comes out through hole (64) of top cover (63),

a cap (94) is fixed on hollow cylinder (70A/70B), that is being made of two hollow cylinders (95, 97) for ventilation of hot gases and smoke of generated by burning of liquid fuel, the upper surface of cap (94) is provided with hollow cylinder (98), to act as a mosquito mat holder, the mosquito repellent mat (107) having a central slot (108) is being placed on the hollow cylinder (98) for working of the lamp as Mosquito repellent mat heater (MRMH),

the said main plate (62) is rotatable manually up to pre-determined angle, thereby adjust the flame (22) of burner (14) either on hole (68) or part (69) , for working of the lamp as Mosquito repellent mat heater (MRMH) and/or Mosquito repellent liquid vaporizer (MRLV) ,

the main plate (62) that is having L-shape plate (66) provided with electric heating mechanism to heat plate (133) so as to activate heating of Mosquito repellent mat (MRM) and / or Mosquito repellent liquid refill (MRLR) in a controlled manner.

One aspect of the present invention wherein the fuel tank's lower part (2) is provided with a narrow channel (99) extending from the face or boundary wall of the lower part (2) of fuel tank, that act as a vent hole for the vapors of liquid fuel, while upper part of fuel tank is placed on the lower part.

Another aspect of the present invention wherein, the said cylindrical structures are permanently fixed on the bottom surface of the upper part of fuel tank. Yet another aspect of the present invention wherein the fuel tank is made in cuboidal shape, whereby the front face, side faces are flat in shape and rear face is in semi cylindrical in shape.

Yet another aspect of the present invention wherein the upper part of fuel tank and lower part of fuel tank is identical in shape and the upper part is slightly smaller in size so that it accommodate in the lower part up to a desired depth.

Yet another aspect of the present invention wherein the fuel tank is provided with at least three legs (3, 4, 5) for rest on ground and two handles (6) and (7) on both side faces to lift the fuel tank. Yet another aspect of the present invention wherein, the fuel tank is made of either metal or alloy sheet or any transparent material.

Still another aspect of the present invention wherein a burner (14) consists of upper part (15), middle part (16), lower part (17) and a thin hollow rectangular tube (18) with gear (19) and rotating shaft (20), the cotton wick (21) is capable to move up and down inside hollow rectangular tube (18) with the help of rotating shaft (20) and gear (19), and the lower part of cotton wick (21) is remain submerged in fuel and upper part is kept outside the rectangular tube (18).

Yet another aspect of the present invention wherein, the height of flame (22) is adjusted with the gear (19) and rotating shaft (20) of burner in reference to the indicator (23) being attached to the burner. Yet another aspect of the present invention wherein, the level indicator (25) is fixed in the upper surface of hollow cylinder (24) of fuel tank (1) and the lower hollow portion of floater (33) floats on fuel in fuel tank (1).

Yet another aspect of the present invention wherein the mosquito repellent mat is placed either on the top surface of plate (66) or on the top surface of cap (94).

Yet another aspect of the present invention wherein the middle part (37) and fuel tank is identical in shape and configuration. Yet another aspect of the present invention wherein the middle part (37) is placed detachably with main plate (62) on the top surface of fuel tank (1) so that the burner (14) gets covered and in such condition cotton wick (21) is burnt with fuel.

A still another aspect of the present invention, wherein the middle part (37) having a wall (54) in center part and holes (55) are made in the lower part of wall (54), the said wall (54) is fixed between the grooves (52) and (53) in the left and right walls of middle part (37). .

Yet another aspect of the present invention wherein the apertures / holes (51) and (55) are made for fresh air to burn the cotton wick in a flame (22) and remains stable. Yet another aspect of the present invention wherein middle part (37) having a circular flat disc that acts as a base (56) to hold main plate (62), the height of the upper portion of the base (56) is equal to height of main plate (62) and the said main plate is rotatable on base (56).

Yet another aspect of the present invention wherein the middle part (37) having two barriers (57) and (58) to limit the rotation of the main plate (62) not beyond a predetermined angle.

Yet another aspect of the present invention wherein the barriers (57) and (58), stops lever (86) attached on main plate (62) to rotate more than a fixed angle and retain the flame (22) within the boundary (67) Yet another aspect of the present invention wherein the middle part (37) having two handles (59) and (60) being attached permanently on two side faces of boundary of middle part (37) at left and right side from outside.

Yet another aspect of the present invention wherein the middle part (37) is kept over fuel tank (1) by using handles (59) and (60) and at the same time a cut (61) is made in the bottom of right face of middle part (37) to incorporate the shaft (20) of burner (14).

Yet another aspect of the present invention wherein the cylindrical part (73) comprises a boundary (74) of the shape of L-shape plate (66).

Yet another aspect of the present invention wherein the part (77) is a hollow cylinder, whereby in the top portion of this cylinder, holes are made in the circumference and at the lower part of this hollow cylinder threads are cut in anti-clockwise direction, so that a mosquito repellent liquid refill (100) is screwed in the thread by rotating mosquito repellent liquid refill (100) in anti-clockwise direction.

Yet another aspect of the present invention wherein the main plate (62) is covered with a top cover (63) after fitting plate (66) in the lower part (73) of main plate (62). Still another aspect of the present invention wherein the top cover (63) consist a hole (64) that allow to pass the hollow cylinder (70B) attached at the top surface of plate (66), hence, when top cover (63) is fitted over lower part (73), then some part of hollow cylinder (70B) comes out through hole (64) of top cover (63).

Yet another aspect of the present invention wherein the top cover (63) comprise a safety cover (65) in a hollow cylinder structure so as when top cover (63) is fitted on lower part (73) then safety cover (65) acts as an safety cover for electric heating mechanism.

Yet another aspect of the present invention wherein the top cover (63) is attached in the holes (87), (88), (89), (90), (91), (92), (93) of lower part (73) with the help of screws. Yet another aspect of the present invention wherein the main plate having handles (84) and (85) and lever (86), the main plate (62) can be rotated on the base (56) of middle part (37) with the help of lever (86). Handle (85) and lever (86) are combined and has been attached on the top surface of main plate (62) with the help of screws. A further aspect of the present invention wherein the cap (94) is made of two hollow cylinders i.e. inner hollow cylinder (95) and outer hollow cylinder (97) and fitted in hollow cylinder (70A or 70B) in such a manner that hot gases and smoke being escaped from the burner release in the atmosphere by maximum utilization of their heat.

A still another aspect of the present invention wherein the hollow cylinder (98) is attached with cap (94), whereby a mosquito repellent mat is installed in the hollow cylinder (98) and thereby get heated with hot gases and smoke coming from burner. Yet another aspect of the present invention wherein the mosquito repellent mat (107) is a circular or triangular or more than three edges such as square in shape, provided with a slot in center (108). Yet another aspect of the present invention wherein the said lamp is capable of being used as a light lamp in normal condition, when the flame of burner is adjusted to a certain height and light is coming through only glass window of middle part (37). Still another aspect of the present invention wherein the said lamp is capable of being used as a Mosquito repellent mat heater (MRMH) , when main plate (62) is rotated to its maximum in anti-clockwise direction while it is kept on middle part (37) of base (56) and the center of the hole (68) comes on the top of flame (22) of burner (14), the flame (22) is below hole (68) and hollow cylinder (70B) is attached above hole (68), the hot gases and smoke produced from flame (22) comes out in open while transferring heat to cap (94) and which in turn transferring heat to the top surface of cap (94) and heating the same, whereby the repellent mat is installed, thereby lamp working as Mosquito repellent mat heater (MRMH). A further aspect of the present invention wherein the said lamp is capable of being used as a Mosquito repellent liquid vaporizer (MRLV), when main plate (62) is rotated to maximum in clock wise direction from the existing position so that lever (86) touches barrier (57), thereby, the center of part (69) of plate (66) is above flame (22) of burner (14) and hot gases and smoke produced by flame (22) strikes part (69) inside boundary (67) and remains within boundary (67) and reaches hole (68), the hot gases and smoke transfer its heat to part (69) and boundary (67) and thereby refill (100) which is filled with mosquito repellent liquid is attached in mechanism (77) get heated from its rod (104), the mosquito repellent liquid absorbed by rod (104) evaporates and spreads in the air and repels mosquitoes.

Yet another aspect of the present invention wherein the electric heating mechanism to heat plate (133) and hollow cylinder (135) through one or more thermistor units, fixed in cover plate or mold plate (113) that is operationally configured with L-shape plate (66).

Yet another aspect of the present invention wherein the electric heating mechanism is capable to achieve temperature of plate (133) and hollow cylinder (135) through all thermistor units between 100 C to 175 C, by varying the position of switches, electric supply with indication of LED lights, so as to achieve heating in a controlled manner.

Yet another aspect of the present invention wherein, the lamp is preferably working on flame heating mechanism, whereby either (a) flame (22) provide heating to metal or alloy plate (66), so as to obtain heating at the inner surface of the hole (72) of metal or alloy plate, whereby the rod is inserted of mosquito repellent liquid refill (100) and heated and the mosquito repellent liquid absorbed by rod (104) evaporates, or (b) flame (22) provide heating to the top surface of cap (94) whereby the mosquito repellent mat is placed, and thereby the mosquito repellent ingredients in the mat (107) evaporates.

Yet another aspect of the present invention wherein the electric heating mechanism is assembled on plate (66) in such a manner that hole (136) of plate (133) and hole (72) of plate (66) is concentric.

Yet another aspect of the present invention wherein the electric heating mechanism is capable to achieve low or high temperature by thermistor units.

Yet another aspect of the present invention wherein the electric heating mechanism is capable to achieve temperature between 130°C to 175°C in all thermistor units by varying the position of switch.

Yet another aspect of the present invention wherein the electric heating mechanism is capable to achieve temperature between 100°C to 125°C in one position (low) and temperature between 130°C to 175°C in another position (high) through all thermistor units, by varying the position of switch.

Yet another aspect of the present invention wherein the electric heating mechanism is capable to achieve temperature between 100°C to 115°C in one position (low) , between 120°C to 125°C in second position (medium) , and between 130°C to 175°C in third position (high), through all thermistor units, by varying the position of switches. Yet another aspect of the present invention wherein the electric heating mechanism is capable to achieve temperature between 100°C to 175°C through all thermistor units by incorporating potentiometer in electric heating mechanism.

In another aspect of the present mosquito repellent lamp, energy conversion is carried out by two ways. Firstly, by consumption or burning of liquid fuel, the chemical energy is converting in heat energy, and secondly, due to electrical heating mechanism, the electric energy is converting in heat energy. After converting chemical energy and /or electrical energy into heat energy the lamp is working as Mosquito repellent mat heater (MRMH) and Mosquito repellent liquid vaporizer (MRLV).

DETAIL DESCRIPTION OF FIGURES

(I) Fuel Tank (1)

As shown figure 2, a Fuel tank (1) is used to fill fuel (kerosene or diesel). Front part of fuel tank (1) is having cuboidal shape and back part is having semi cylindrical shape. Fuel tank (1) is made up of two parts viz. lower part (2) and upper part (8) as depicted in figure 7 and 8, respectively. Three legs are attached permanently at lower surface of lower part (2). Legs (3) and (5) are attached in the front corners and leg (4) is attached at the back side. L-shaped handles (6) and (7) are attached on the left and right side of boundary of lower part (2). Handles (6) and (7) are used to lift fuel tank (1). There is a narrow channel (99) in the front boundary wall of lower part (2). When upper part (8) is fixed on lower part (2), this channel (99) acts as vent hole for the vapors to come out.

Three cylinders are attached permanently on the upper part (8) of fuel tank (1). Hollow cylinder (11) is attached in the front right side of rectangular portion of upper part (8). Burner (14) (as shown in figures 9 and 10) is fitted in hollow cylinder (11). Hollow cylinder (24) is attached in the front left side of rectangular portion of upper part (8). Level indicator (25) is fitted in hollow cylinder (24). Hollow cylinder (35) is attached in the back left side of upper part (8). Fuel is filled with hollow cylinder (35) in fuel tank (1). Cap (36) (as shown in figure 27) is put on hollow cylinder (35). Two cuts (12) and (13) are provided in the hollow cylinder (11) to fix rotating shaft (20) of burner (14). Upper part (8) and lower part (2) are locked with each other. A cut (10) is provided in the boundary (9) to fix rotating shaft (20) of burner (14). Burner (14)

As shown in figure 9 and 10, a burner (14) consists of upper part (15), middle part (16), lower part (17), thin hollow rectangular tube (18), gear (19) and rotating shaft (20). Cotton wick (21) can be moved up and down inside hollow rectangular tube (18) with the help of rotating shaft (20) and gear (19). Lower part of cotton wick (21) is submerged in fuel and upper part is kept outside the rectangular tube (18). Cotton wick (21) is burnt in burner (14). Using gear (19) and rotating shaft (20) height of the flame (22) can be adjusted. At the upper part (15) of burner (14) one indicator (23) is attached, which fixes the height of flame (22).

Level Indicator (25) As shown in figure 19 and 20, the level indicator (25) has three main parts viz. lower part (26), upper part (30), and floater (33). Lower part (26) is a hollow cylinder whose bottom is closed. There is a hole (27) at bottom. There is a hollow cylinder (28) around hole (27) inside lower part (26). Inner diameter of hollow cylinder (28) is equivalent to inner diameter of hole (27). Height of the hollow cylinder (28) is equivalent to lower part (26) of level indicator (25). Upper surface of lower part (26) and hollow cylinder (28) are at same level. There is a disc (29) in lower part (26). There are threads at upper part of lower plate (26). With the help of these threads the upper part of (30) of level indicator (25) is fixed. Upper part (30) is a hollow cylinder whose one end is closed. There is a hole (31) in the center of closed end. Around the hole (31) there is a hollow cylinder (32). The inner diameter of hollow cylinder (32) is more than the outer diameter of hollow cylinder (28). Height of hollow cylinder (32) is approximately one third of the height of upper part (30). Upper part (30) is fixed on lower part (26) using threads. Rod (34) of floater (33) is inserted in hole (27) of lower part (26). Rod (34) comes out of hole (31) through hollow cylinder (28). Threads are made at the upper part of rod (34). A plastic knob is fixed on this thread to stop rod (34).

This assembled level indicator (25) is fixed in the upper surface of hollow cylinder (24) (as shown in figure 8) of fuel tank (1). Lower hollow portion of floater (33) floats on fuel in fuel tank (1). Depending upon the fuel level in fuel tank (1), floater rod (34) moves up and down and shows fuel level in fuel tank (1).

(II) Middle part (37) of lamp body:

As shown in figures 3 and 4, a Middle part (37) of lamp has three parts, front portion, back portion and upper portion. Middle part (37) is having cuboid shape from front and semicircular from back side.

Front portion of Middle part (37)

As shown in figures 3 and 4, there is a window (38) in the front portion of middle part (37) . Window can be kept open or closed with the help of a plane rectangular glass (39). There are two grooves (40) and (41) at the side of window (38) to fix glass (39) on window (38). Both the grooves (40) and (41) are up to bottom of middle part (37). This glass stops the air to enter inside the burner (14). The stopper (42) stops the glass (39) in the grooves after inserting the glass (39). Frame (43) has been made such that it can be fitted in the grooves (40) and (41) of middle part (37). A window (44) has been made in frame (43). After inserting the frame (43) in grooves (40) and (41), both the windows (38) and (44) will match. Grooves (45) and (46) of frame (43) will fit in the grooves (40) and (41) of middle part (37). When the glass (39) is inserted in the grooves (45) and (46), glass (39) fixes tightly. Glass (39) stops at stopper (42). Height of glass (39) is slightly higher than the height of middle part (37), it helps in inserting glass (39) in the grooves (45) and (46). At the corners of frame (43), four strips (47), (48), (49) and (50) are made. With the help of these strips, frame (43) can be fixed in middle part (37). Back portion of Middle part (37)

As shown in figures 3 and 4, back portion of middle part (37) is semi cylindrical. At the center of this wall, holes (51) are made. Burner (14) has been fixed at the right side of the top surface of fuel tank (1). When the middle part (37) is placed with main plate (62) on the top surface of fuel tank (1) and the window (38) of middle part (37) is closed, the burner (14) gets covered. In this condition cotton wick (21) is burnt. A wall (54) (As shown in figure 30) is fixed in middle part (37). Holes (55) are made in the lower part of wall (54). Grooves (52) and (53) are made in the left and right walls of middle part (37) to fix wall (54). Fresh air comes through holes (51) and (55) such that flame (22) remains stable. At the bottom of middle part (37), all the walls of middle part (37) and wall (54) are at same level.

Upper portion of Middle part (37)

As shown in figures 3, 4 and 5, the upper portion of middle part (37) is having cylindrical shape comprises of shorter height. This hollow cylinder is an integral part of middle part (37). Upper part of hollow cylinder is open and bottom part opens in middle part (37). At the bottom of hollow cylinder a circular flat disc is attached permanently which is an integral part of middle part (37). The inner diameter of circular disc is lesser than inner diameter of hollow cylinder. This circular flat disc acts as a base (56) to hold main plate (62). Height of the hollow cylinder is equal to height of main plate (62). Main plate (62) can be rotated on base (56). In the middle part (37), two barriers (57) and (58) are made such that, main plate (62) should not rotate more than a fix angle. These barriers are integral parts of middle part (37). These barriers (57) and (58), stops lever (86) attached on main plate (62); to rotate more than a fixed angle. Handles (59) and (60) are attached permanently on boundary of middle part (37) at left and right side from outside. Handles (59) and (60) are integral part of middle part (37). Middle part (37) can be kept over fuel tank (1) using handles (59) and (60). A cut (61) is made in the bottom of right boundary of middle part (37). This cut is used for adjustment of rotating shaft (20) of burner (14). The reason for constructing the shape of fuel tank (1) and middle part (37) in cuboid shape and back portion is semi cylindrical shape, so that, the middle part can be placed on fuel tank only in one position. However, it is within the purview of the skilled person in the art to get motivated and modify the shape (Like Square, triangular, oval, or any combination thereof) of middle part to achieve the same function.

Reason for the shape of fuel tank (1) and middle part (37) Front part of fuel tank (1) and middle part (37) is preferably constructed in cuboid shape and back portion is semi cylindrical shape, so as to ensure that the middle part can be placed on fuel tank only in one position.

(Ill) Main plate (62)

As shown in figures 5 and 6, Main plate (62) is made by assembling various parts. These parts are explained below:

Plate (66)

As shown in figures 15, 16 and 17, a Plate (66) is fitted inside the main plate (62). Boundary (67) is provided permanently at the lower surface of plate (66). Boundary (67) is an integral part of plate (66). A hole (68) is made in boundary (67) of plate (66). Part (69) is located adjacent of the hole (68). A hollow cylinder is attached on the top of hole (68) which is on the upper surface of plate (66). Inner diameter of hollow cylinder is more than the inner diameter of hole (68). Hollow cylinder can be attached on plate (66) by two methods (70A and 70B).

Type I: Hollow cylinder (70 A) is attached permanently on plate (66) and hollow cylinder (70 A) is an integral part of plate (66).

Type II: As shown in figure 17, a separate hollow cylinder (70B) is attached on plate (66) as a separate unit. At one end of hollow cylinder (70B), a circular disc is attached permanently. This circular disc is an integral part of hollow cylinder (70 B). Both the ends of hollow cylinder (70 B) are open. This hollow cylinder (70B) with disc is attached on hole (68). Material with poor thermal conductivity is kept between lower surface of disc of hollow cylinder (70B) and upper surface of plate (66). Disc is screwed on the hole (68) at the upper surface of plate (66). A cylinder (71) is permanently attached at the lower surface of plate (66). Cylinder (71) is an integral part of plate (66). A hole (72) has been made at the center of cylinder (71). Hole (72) is made in the full height of cylinder (71) and plate (66). Lower part (73) of main plate (62)

As shown in figures 11 and 12, Lower part (73) of main plate (62) is a cylindrical frame whose lower end is closed. In this cylindrical part (73) a boundary (74) has been made of the shape of plate (66), i.e. L-shape. This boundary (74) is an integral part of lower part (73). As shown in figure 12, a hollow cylinder mechanism (77) is provided below the hole (76) at lower surface of lower part (73). In the top portion of this cylinder, holes are made in the circumference. At the lower part of this hollow cylinder threads are cut in anti-clockwise direction. Mosquito repellent liquid refill (100) is screwed in this thread by rotating mosquito repellent liquid refill (100) in anti-clockwise direction. Top cover (63) of main plate (62)

As shown in figures 13, after fitting plate (66) in the lower part (73) of main plate (62), lower part (73) is covered with the help of top cover (63). There is a hole (64) in top cover (63). Hollow cylinder (70A/70B) is attached at the top surface of plate (66). When top cover (63) is fitted over lower part (73), then some part of hollow cylinder (70B) comes out through hole (64) of top cover (63). A safety cover (65) is permanently attached at the upper surface of top cover (63). In this safety cover (65) a hollow cylinder is permanently attached at the upper surface of top cover (63). This hollow cylinder is an integral part of top cover (63). When top cover (63) is fitted on lower part (73) then safety cover (73) acts as an safety cover for hole (72) or for attached electric mosquito mat heater and/or electric mosquito liquid vaporizer, attached on plate (66) on top of hole (72).

As shown in figure 13, the top cover (63) is attached in the holes (87), (88), (89), (90), (91), (92), (93) of lower part (73) (as shown in figure 11) with the help of screws. At the upper surface of main plate (62), handles (84) and (85) and lever (86) is attached with the help of screws. Handles (84) and (85) are used to lift main plate (62). Main plate (62) can be rotated on the base (56) of middle part (37) with the help of lever (86). Handle (85) and lever (86) are combined and has been attached on the top surface of main plate (62) with the help of screws. Handle (85) and lever (86) can also be attached separately on the top surface of main plate (62) with the help of screws.

Sheet cover (78) of lower part (73) of main plate (62)

If main plate (62) is placed incorrectly on the base (56) of middle part (37), then lower part (73) may get damaged by the flame (22). Therefore at lower surface and side of lower part (73), an iron sheet cover (78) is placed, as shown in figure 14. In the lower surface of sheet cover (78) two holes (79) and (80) to bring hole (75), (76) and mechanism (77) in open. As shown in figure 14, the Cover (78) is fitted on lower part (73). Three strips (81), (82) and (83) are made in cover (78). These strips (81), (82) and (83) are an integral part of cover (78). These strips (81), (82) and (83) are attached on top surface of main plate (62) with the help of screws, as shown in figure 5. So that cover (78) can be fixed at desired location on lower part (73) and avoids opening while handling main plate (62).

Cap (94) for ventilation of hot gases and smoke

As shown in figure 1, 18, 21, 22, a Cap (94) is fitted in hollow cylinder (70 A or 70B). Cap (94) is made of iron sheet. As explained in figure 22, the cap is made of two hollow cylinders viz. inner hollow cylinder (95) and outer hollow cylinder (97). One end of hollow cylinder (95) is closed. Holes are made on the circumference of hollow cylinder (95) at closed end. All the holes (96) are made on the circumference just below the top surface of closed end. Height of the outer hollow cylinder (97) is less than the height of inner hollow cylinder (95). One end of the outer hollow cylinder (97) is closed. Closed ends of both the cylinders (95) and (97) are kept in same direction. After this, inner hollow cylinder (95) is inserted in outer hollow cylinder (97). Closed end of both the cylinders touch each other. Both the cylinders are made concentric and closed ends are spot welded. The lower part of inner hollow cylinder (95) is fitted in hollow cylinder (70B).

Inner diameter of hollow cylinder (70B) is more than the inner diameter of hole (68). Therefore, while inserting lower part of inner hollow cylinder (95) of cap (94) in hollow cylinder (70B); inner hollow cylinder (95) rest at base of hollow cylinder (70B) or surface of plate (66).. Hence, in this condition, lower end of outer hollow cylinder (97), remains at small distance from the upper surface of main plate (62). However, in this condition holes (96) of inner hollow cylinder (95) are covered by outer hollow cylinder (97). Cap (94) is used for ventilation of hot gases and smoke generated by burning of fuel in burner (14). At the center of upper surface of cap (94), a small hollow cylinder (98), made of iron sheet, is attached. The height and diameter of this small hollow cylinder (98) is about 10mm. One end of this hollow cylinder is open and other end is closed. While attaching the hollow cylinder (98) on cap (94), the closed end of the hollow cylinder (98) is kept in contact with the upper surface of cap (94). The top hot surface of cap (94) is used as mosquito mat heater. On this hot surface of cap (94), those mosquito repellent mats (107) are used which have hole (108) in the center. The shape of this mosquito repellent mat (107) is either circular, triangular of with more than three sides. Hot gases and smoke is produced by burning of fuel in burner (14). These hot gases and smoke reaches in hollow cylinder (70B) and then reaches to inner hollow cylinder (95) of cap (94) and strikes with the closed end of inner hollow cylinder (95). After this, hot gases and smoke reach outer hollow cylinder (97) through holes (96). In outer hollow cylinder (97) hot gases and smoke has to come down so as to pass from the holes (96). After this the hot gases and smoke comes out in open atmospheric air from outer hollow cylinder (97). While lamp is kept in open area, due to peculiar shape of cap (94) hot gases and smoke can come out in open area, however, air cannot come inside through cap (94). Thus, even during high wind velocity, heating mechanism of mosquito repellent lamp by flame doesn't get affected. Socket to supply electricity to main plate (62)

As shown in figure 12, a socket (141) is attached adjacent to cap (94) at the top surface of main plate (62). This may be an integral part of top cover (63) of main plate (62). With the help of this socket, electric supply is provided either independently or jointly to electric mosquito mat heater and electric mosquito liquid vaporizer, which is attached jointly at plate (66) of main plate (62).

Heating mechanism of plate (66)

Flame (22) is produced by burning fuel in burner (14). Plate (66) is kept in the way of hot gases and smokes. Hot gases and smokes transfer their heat to plate (66). The burner comprise cotton wick (21) made of natural thin fibers that can be moved up and down inside hollow rectangular tube (18) with the help of rotating shaft (20) and gear (19). Lower part of cotton wick (21) is submerged in fuel and upper part is kept outside the rectangular tube (18). Hence, due to capillary action liquid fuel is absorbed and raised to the top end of the Cotton wick (21), which is ignited in burner (14). Using gear (19) and rotating shaft (20) height of the flame (22) can be adjusted. At the upper part (15) of burner (14) one indicator (23) is attached, which fixes the height of flame (22).

The plate (66) is kept on the way of upward moving hot gases and smokes, thereby the plate (66) is get heated due to hot gases and smokes transfer their heat to plate (66). The burning of fuel produces hot gases and hot air, which are raised high due to lighter weight than air. The temperature of plate (66) increases continuously till the heat losses are equivalent to heat transfer.

Size of flame (22) in burner (14)

The plate (66) will be heated more if the size of flame (22) is more. Size of the flame (22) depends on the size of the cotton wick (21) which is out of the rectangular tube (18) of burner (14). The plate (66) is heated with low size flame (22) so that fuel can be saved. To attain a required temperature of plate (66) height of flame (22) is kept fixed. A pointer (23) is attached on burner (14) to keep the height of flame (22) fixed. After 2 to 5 minutes of the burning of cotton wick (21), height of the flame (22) is adjusted up to pointer (23).

Gap between flame (22) and plate (66)

Temperature of plate (66) also depends on the gap between top portion of flame (22) and lower surface of plate (66). If gap is more temperature of plate (66) will be less. By maintaining a fixed the gap between flame (22) and plate (66), desired temperature can be attained.

Material of plate (66)

Two processes occur simultaneously during heating of plate (66). In one process, heat from hot gases and smoke transfers to plate (66). In second process, the plate (66) transfers heat to surrounding air, the second process is basically losses of heat. Hence, plate (66) should be made of material with good thermal conductivity so that only plate will become hot and heat losses is minimum. Plate should be made of good conductor of heat and should be light weighted and of low cost. Therefore, it is preferably made of aluminum or aluminum alloy. However, it can be made of other metal or metal alloy as well.

Covering of plate (66)

In main plate (62), upper surface of boundary (67) of plate (66), upper part of hollow cylinder (70B), and upper surface of cylinder (71) are not covered. Remaining area of plate (66) is covered by lower part (73) of main plate (62) and top cover (63). Thus heat transfer from hot gases and smoke continues to plate (66). But the heat loss from plate (66) reduces. Temperature of covered plate (66) becomes more than the uncovered plate (66).

Material with poor thermal conductivity between plate (66) and covered surface Temperature of covered plate (66) becomes more than the uncovered plate (66). To further increase the temperature of covered plate (66), material with poor thermal conductivity is kept between pate (66) and covered surface. Due to material with poor thermal conductivity, heat losses from plate (66) reduce, and thereby the temperature of covered plate (66) becomes more than uncovered plate. Thus plate (66) is heated to maximum and required temperature is achieved by burning minimum fuel in burner (14).

Working of plate (66)

A boundary (67) is made in the lower surface of plate (66). Inside boundary (67) a hole (68) is made in plate (66). Adjacent of hole (68) part (69) is situated. When, the middle part (37) with main plate (62) and glass (39) in window (38) is kept on fuel tank (1) then either part (69) or hole (68) remain at the top of flame (22) of burner (14). This variation can be carried out by rotating main plate (62) which is kept on base (56) of middle part (37).

When part (69) is above on the flame of burner (14)

In this condition hot gases and smoke strikes part (69). Heat is transferred to plate (66) by hot gases and smoke. Hollow cylinder (70 B) is attached above hole (68). Cap (94) is fitted in hollow cylinder (70B). Hot gases and smoke, after burning of fuel in burner (14) comes out in open through hole (68) hollow cylinder (70 B) and cap (94).

When hole (68) is above flame (22) of burner (14) In this condition hot gases and smoke directly reaches hole (68) without heating plate (66). From hole (68) and through hollow cylinder (70B) reaches in cap (94) then comes out in open. In this condition hot gases and smoke strikes with the top closed end of cap (94). This makes cap (94) hot and the required temperature is achieved at the top surface of cap (94). Working of boundary (67) in plate (66)

Boundary (67) is made in plate (66) to increase the area for heat transfer between hot gases and plate (66) so that required temperature can be achieved in less time. Boundary (67) is an integral part of plate (66). Height, thickness and length of the boundary (67) is fixed by experimental analysis such that maximum heat can be transferred to plate (66). Boundary (67) keeps the hot gases and smoke within boundary (67) hot gases reach in hole (68). This avoids hot gases and smoke to spread in middle part (37) and window glass (39) remains clean.

Achieving high or low temperature at plate (66) and cap (94) by controlling heat losses:

1. Achieving high temperature

If material with poor thermal conductivity is used between top of hole (68) and outer disc of hollow cylinder (70B), and heat loss is stopped between plate (66) and cap (94), high temperature can be achieved at outer surface of cap (94) and in hole (72) of cylinder (71) due to less heat losses.

2. Achieving low temperature

If material with poor thermal conductivity is not used between top of hole (68) and outer disc of hollow cylinder (70 B) or hollow cylinder (70 A) is attached permanently over hole (68) and heat transfer is allowed between plate (66) and cap (94) low temperature can be achieved at outer surface of cap(94) and in hole (72) of cylinder (71), due to high heat losses.

3. Maintenance of mosquito repellent lamp

It is observed that after using mosquito repellent lamp for some days, carbon layer may get deposited on part (69). Due to such carbon deposition, the functioning or working of lamp gets affected. Therefore, it is suggested that part (69) can be cleaned by lifting main plate (62) from base (56) of middle part (37) and height of flame (22) should be kept low. Also, it is suggested that hole (68) should be in line with flame (22) by rotating the main plate (62), so that whatever smoke produces, it will be routed to the atmosphere through cap (94). Hence, in such circumstances, the carbon layer will be deposited in the cap, which is accessible from outside and can be easily removed and can be cleaned. For better working of the lamp, it is preferred that after 2 to 5 minutes of igniting the flame (22), the height of the flame is set out up to the indicator (23) and thereafter main plate (62) is rotated clockwise so that part (69) of plate (66) is coming in line with flame (22). In addition, periodically, the middle part (37) can be lifted with the help of handles (59, 60) from the fuel tank, and the cotton wick (21) of burner can cleaned or cut the burn portion of cotton wick (21). Alternatively, the cotton wick (21) can be replaced by the new cotton wick.

WORKING OF MOSQUITO REPELLENTLAMP Working of mosquito repellent lamp depends on its type of use. Mosquito repellent lamp can be used in various ways. To use this, first of all the middle part (37) is lifted from fuel tank (1). After this, fuel (kerosene or diesel) is filled in the fuel tank (1). After this cotton wick (21) is inserted in the burner (14), or cotton wick (21) which is already inserted in burner (14), is cut from the top to clean it. Glass (39) is fitted in window (38) after cleaning it.

(a) Working of mosquito repellent lamp, as a Lamp only, i.e. when only dim light is needed without mosquito repellent mat or liquid refill.

Cotton wick (21) is burnt which gives flame (22). Height of the flame (22) is adjusted with the help of gear (19) and rotating shaft (20) such that smoke does not come. After this, middle part (37) with main plate (62) is kept on the top surface of fuel tank (1), while glass (39) is kept inserted in window (38). Main plate (62) is rotated to its maximum in anti-clockwise direction while it is kept on base (56) of middle part (37). This makes lever (86) to touch barrier (58) and the center of the hole (68) comes on the top of flame (22) of burner (14). Hollow cylinder (70B) is attached on hole (68). Cap (94) is fitted in hollow cylinder (70B). Hot gases and smoke, after burning of fuel in burner (14) comes out in open through hole (68), hollow cylinder (70 B) and cap (94). A pointer (23) is fitted on burner (14). After 2 to 5 minutes of burning of cotton wick (21), height of the flame (22) is set up to pointer (23). The light of this flame comes out from window (38) through glass (39). This gives sufficient light to illuminate the surrounding are.

(b) Working of mosquito repellent lamp when light and heating of mosquito repellent mat both mechanisms is working Cotton wick (21) is burnt which gives flame (22). Height of the flame (22) is adjusted with the help of gear (19) and rotating shaft (20) such that smoke does not come. After this, middle part (37) with main plate (62) is kept on the top surface of fuel tank (1), while glass (39) is kept inserted in window (38). Main plate (62) is rotated to its maximum in anti-clockwise direction while it is kept on base (56) of middle part (37). . This makes lever (86) to touch barrier (58) and the center of the hole (68) comes on the top of flame (22) of burner (14). Hollow cylinder (70B) is attached on hole (68). Cap (94) is fitted in hollow cylinder (70B). Hot gases and smoke, after burning of fuel in burner (14) comes out in open through hole (68), hollow cylinder (70 B) and cap (94). A pointer (23) is fitted on burner (14). After 2 to 5 minutes of burning of cotton wick (21), height of the flame (22) is set up to pointer (23). The light of this flame comes out from window (38) through glass (39). In this condition, since flame (22) is below hole (68) and hollow cylinder (70B) is attached above hole (68), the hot gases and smoke produced from flame (22) comes out in open while transferring heat to cap (94). The top surface of cap (94) attains the require temperature. Mosquito repellent mat (107) is kept above the hot top surface. The house hold insecticide absorbed by mosquito repellent mat evaporates and repels mosquitoes. Hence, in these circumstances, mosquito repellent lamp not only working as a lamp but also working as mosquito repellent mat lamp.

(c) Working of mosquito repellent lamp when light and heating of mosquito repellent liquid refill both mechanisms is working To activate mosquito repellent liquid refill mechanism from the above-said position (b), the main plate (62) is rotated to maximum in clock wise direction from the present position so that lever (86) touches barrier (57). In this condition, center of part (69) of plate (66) is above flame (22) of burner (14). Hot gases and smoke produced by flame (22) strikes part (69) of boundary (67). These hot gases and smoke remains within boundary (67) and reaches hole (68). After reaching hole (68) hot gases and smoke comes out in open through hollow cylinder (70B) and cap (94). These hot gases and smoke transfer its heat to part (69) and boundary (67) through plate (66). This heats plate (66) and consequently cylinder (71). Thus required temperature is achieved at inner surface of hole (72) made at the center of cylinder (71). Mosquito refill Mechanism (77) is attached below cylinder (71). Main plate (62) is lifted from base (56) with the help of handles (84) and (85). After this, refill (100) which is filled with mosquito repellent liquid is attached in mechanism (77). House hold insecticide is present in this liquid. A rod (104) is immersed in this liquid which is filled in a small bottle (101). This rod (104) absorbs liquid of bottle (101). This rod (104) comes out of bottle (101) through cap (105). The portion of rod (104) which comes out of the bottle (101) is inserted in hole (72). The mosquito repellent liquid refill (100) is screwed in hollow cylinder of mechanism (77). Threads in hollow cylinder of mechanism (77) are in anti-clockwise direction. Since the inner surface of hole (72) is hot, it heats rod (104). Due to heating of rod (104), the mosquito repellent liquid absorbed by rod (104) evaporates. This spreads in the air and repels mosquitoes.

(d) The main plate (62) that is having L-shape plate (66) provided with electric heating mechanism to heat plate (133) so as to activate heating of mosquito repellentmat and / or mosquito repellent liquid refill . In order to achieve the variable temperatures ranges across the thermistors, a combined electric heating system is developed in the present invention. A combined electric heating mechanism is assembled in association with cylinder (71) and hole (72) in plate (66).

As shown in figure 39 and 41, each unit of the electric heating mechanism comprises a thermistor (124), and having two thin sheets (125, 129) of metal or alloy. One of them is connected to phase wire and another is connected to neutral wire. There are four units are installed in the cover plate (113) (as shown in figure 39), which is being made of insulation material. The said cover plate or mold plate having centrally place hole (114) and the all units are placed around the same. To mount unit (1) in the cover plate (113), sheet (129) is connected with a wire through strip (130) and sheet (125) is connected with a wire through strip (126). Thereafter sheet (129) is placed inside the part (115) and wire is placed in groove (117) so that it can be taken out from cover plate or mold plate (113) via hole (119). Wire is taken out via groove (123) from the peripheral side of cover plate or mold plate (113).

Thermistor (124) is placed between the sheet (125) and (129). The thermistor is placed in the cover plate in such way that it does not displace by its position and hence, the strip (127) and (128) of sheet (125) is fixed in hole (120) and (121), respectively. Likewise, all the units i.e. unit (1), unit (2), unit (3), unit (4) are fixed in cover plate (113).

Thereafter cover plate or mold plate (113) is covered with an insulation material plate (131), such as mica (as shown in figure 33). The said plate consisting a hole (132) and above the said plate another plate (133) is placed. The plate (133) is also consists a hole in center, and a hollow cylinder (134) & (135) is assembling on top and bottom side of the plate in the center. The bottom cylinder (135) is configured in the central hole of cover plate (113) and being covered from the bottom by cover (137). The plate

(133) in assembled position with cover plate (113) is used to place a mosquito repellent mat (107). The said mosquito repellent mat provided with a hole (108) which allow placing the repellent mat on the plate (133), where the hollow cylinder

(134) hold the mosquito repellent mat. The plate (133) upon which the mat (107) is placed, is heated by electric heating mechanism. The said heating mechanism not only heats the plate (133), but also the top hollow cylinder (134) and bottom hollow cylinder (135) by heat transfer mechanism. The bottom hollow cylinder (135) is used to fix a mosquito repellent refill rod (104). Hence, by the above-described electric heating mechanism, at a same time, the said assembly is capable of being used as electric Mosquito repellent mat heater (MRMH) and Mosquito repellent liquid vaporizer (MRLV) . There are following options by which the electric heating mechanism is used for supplying electricity in 4 types of thermistor units (1, 2, 3, 4) that are installed in the cover plate (113) and obtaining controlling heating for working of electric heating mechanism of mosquito repellent lamp.

Type 1 : maintaining temperature between 130°C to 175°C in all thermistor units by varying the position of switch ON and OFF of electric heating mechanism.

Type 2: maintaining temperature between 100°C to 125°C in one position and temperature between 130°C to 175°C in another position by varying the position of switch ON and OFF of electric heating mechanism.

Type 3 : maintaining temperature between 100°C to 115°C in one position , between 120°C to 125°C in second position , and between 130°C to 175°C in third position , by varying the position of switches ON and OFF of electric heating mechanism.

Type 4: maintaining any temperature range between 100°C to 175°C in four set of thermistor unit by incorporating potentiometer in electric heating mechanism.

As shown in figure 41 : For maintaining temperature between 130°C to 175°C jointly, in all thermistor units by varying the position of switches ON and OFF of electric heating mechanism,, collects wires from the entire 4 thermistor units at a single point as a set 1 (lower end of wires) and set 2 (upper end of wires). Set 1 is connected at point 1 of the electric supply. There are three points in the switch. Point 2 of electric supply is connected to a common point 2 of switch. The wires collected as a Set 2 is connected to point 3 of switch. There is a resistor added between the connections of point 3 of switch and point 1 of LED. There is a diode connected between point 1 of electric supply and point 2 of LED. When there is connection between point 1 and 2 of switch, the switch is in OFF condition and there is no heating by electric heating mechanism and LED does not glow. However, where there is connection between point 2 and 3 of the switch, the switch is in ON condition and all 4 thermistor units get heated by electricity and thereby achieving high temperature between 130°C to 175°C and LED glows.

Figure 42: As shown in figure 42, the wires collected from lower end of the entire 4 thermistor unit at a single point as a set 1, the upper end wires of thermistor unit 1 and 3, collected as a set 2. Also, the upper end wires of thermistor unit 2 and 4, collected as a set 3. Set 1 is connected to point 1 of electric supply and set 2 is connected to point 2 of electric supply so that unit 1 and unit 3 are connected directly with electric supply. Point 2 of electric supply and point 1 of LED A is connected by resistor.

Point 1 of electric supply and point 2 of LED A is connected via diode. There are three points in the switch. Point 1 remains free and point 2 of switch is common. Point 2 of electric supply and point 2 of switch is connected. The upper ends of wires of unit 2 and unit 4 collected as a set 3 and connected to point 3 of switch. The point 3 of switch and point 1 of LED B is connected through a resistor. Point 1 of electric supply and point 2 of LED B is connected through a diode.

While point 1 and 2 of switch is connected and point 1 and 2 of electric supply is connected than thermistor units 1 and 3 get heated by electric supply, LED A glows and temperature achieved is between 100°C to 125°C. While point 2 and 3 of switch is connected and point 1 and 2 of electric supply is connected than thermistor units 1 and 3 get heated by direct electric supply, and unit 2 and 4 gets electricity through switch, LED A and LED B glows simultaneously. Thereby, all four thermistor units unit 1, unit 2, unit 3 and unit 4 produces heat temperature achieved is between 130°C to 175°C.

Figure 43 : As shown in figure 43, collected wires from lower end of all 4 thermistor unit at a single point as a set 1, the upper end wires of thermistor unit 1 and 3, collected as a set 2. Set 1 is connected to point 1 of electric supply and set 2 is connected to point 2 of electric supply. Hence, thermistor unit 1 and 3 is connected to directed electric supply. Point 2 of electric supply and point 1 of

LED A is connected through a resistor. Point 1 of electric supply and point 2 of LED A is connected through a diode. Point 2 of electric supply is connected to point 1 of switch A. The upper end of wire of thermistor unit 2 is connected to point 2 of switch A. point 2 of switch A and point 1 of LED B is connected through resistor and point 2 of LED B and point 1 of electric supply is connected through a diode.

Point 2 of electric supply is connected to point 1 of switch B. the upper end of wire of thermistor unit 4 is connected to point 2 of switch B. point 2 of switch B and point 1 of LED C is connected through a resistor and point 2 of LED C and point 1 of electric supply is connected through a diode. While a user needs to attain a low temperature, switch A and Switch B remain in OFF condition. Unit 1 and

3 gets heated while electric supply is provided by point 1 and 2 of electric supply and temperature can be achieved between 100°C to 115°C. LED A glows.

While point 1 and 2 of switch A is connected, then unit 1 and 3 gets electric supply directly, and unit 2 get electric supply via Switch A. thereby the three thermistor units 1, 3, and 2, produces heat and temperature can be achieved between 120°C to 125°C. LED A and LED B glows.

While Switch A and Switch B is in ON condition and point 1 and point 2 of electric supply is connected, then unit 1 and 3 get electric supply directly, and unit 2 get electric supply via Switch A and Unit

4 gets electric supply via Switch B. Thereby, the four thermistor units 1, 3, 2 and 4, produces heat and temperature can be achieved between 130°C to 175°C. LED A, LED B and LED C glows.

Figure 44: As shown in figure 44, collected wires from lower end of all 4 thermistor unit at a single point as a set 1, the upper end wires of thermistor units collected as a set 2. Set 1 is connected to point 1 of electric supply. Set 2 is connected to point 2 of electric supply through a potentiometer. Point 2 of electric supply and point 1 of LED is connected through a resistor, and point 1 of electric supply and point 2 of LED is connected through a diode. Hence, while electric supply is provided from point 1 and 2 of electric supply, all four thermistor units get heated simultaneously. However, with the use of potentiometer, the electric current can be varied and the desired heating can be achieved. Hence, in the said assembly any temperature between 100°C to 175°C can be achieved. LED glows. The plate (133) with electric heating mechanism is assembled to plate (66) by keeping hollow cylinder (71) and hollow cylinder (135) concentric and thereby the flame heating mechanism of lamp is combined with electric heating mechanism. Hence, with the electric heating mechanism, it is possible to heat the rod (104) of refill (100) and at the same time heat the cap (94) whereby the repellent mat (107) is fixed.

Hence, the said mosquito repellent lamp is capable of working jointly in following conditions,

a) while the lamp is ignited, it will heat up the plate (66) by adjusting the flame (22) and thereby heating the rod (104) of Mosquito repellent liquid refill (MRLR) , OR

b) while the lamp is ignited, it will heat up the cap (94) by using the flame (22) and thereby heating the mosquito mat (107), and

c) at the same time with the electric heating mechanism, the plate (133) and hollow cylinder (135) is heated to heat mosquito mat (107) and the rod (104) of mosquito repellent liquid refill (100) and jointly with flame heating mechanism either (a) or (b).

ADVANTAGES OF THE INVENTION

The primary advantage of the present invention is to provide a mosquito repellent lamp working on liquid fuel along with or without electricity.

Another advantage of the present invention is to provide a mosquito repellent lamp where a user is able to select the mode of mosquito repulsion either by repellent mat or liquid repellent refill pack or both.

Yet another advantage of the present invention is to provide a mosquito repellent lamp, where a user will have a close control over temperature of thermistor i.e. either increasing or decreasing the temperature of thermistor and maintaining a desired temperature range for varying the activation of mosquito repellent lamp, either by electric supply or by a flame generated by burning of liquid fuel or combination of both. Another advantage of the invention is concerned with the fact that various species of mosquitoes are responsible for various life threatening diseases like Dengu etc. to human beings and animals

Still another advantage of the present invention is to operate lamp both on availability and unavailability of electricity. This invention is mainly useful in rural areas where electricity is either unavailable or available intermittently.

The advantages of the disclosed invention are thus attained in an economical, practical, and facile manner. While preferred aspects and example configurations have been shown and described, it is to be understood that various further modifications and additional configurations will be apparent to those skilled in the art. It is intended that the specific embodiments and configurations herein disclosed are illustrative of the preferred nature of the invention, and should not be interpreted as limitations on the scope of the invention.

Claims

THE CLAIM

1. A mosquito repellent lamp working on liquid fuel along with or without electricity, comprising an assembly of fuel tank (1), a middle part or chamber (37) and a main plate (62), the said lamp comprising

a fuel tank (1) made in two detachable parts, namely, a lower part (2) and a upper part (8), whereby the bottom surface of upper part is provided with three holes , where upon the three cylindrical structures (11, 24, 35) are mounted, the said structures (11, 24, 35) being provided with a burner (14), a level indicator (25) and as fuel filling means (35) and thereby remain in communication with lower part of fuel tank where the liquid fuel is filled inside the fuel tank,

a middle chamber or part (37) being detachably installed on the fuel tank (1) and provided with a window, covered with a transparent sheet at least at one face of the same and having multiple apertures on another face parallel to the of the transparent sheet face of the chamber; the bottom face of chamber is being open to connect with upper part of the fuel tank and the top face is provide with a base (56) at inner peripheral portion to install a main plate (62), the main plate (62) is being installed in the middle chamber or part (37) on the base (56), the said main plate having lower part (73) whereby a boundary (74) is being created by protruding edges in L-shape, the said boundary (74) being adapted another L-shape metal plate (66), the said L- shape metal plate (66) are provided with holes (68, 72), one hole (72) for a mosquito repellent liquid refill rod (104) and another hole (68) for receiving the flame of burner, the said 'L' shape plate (66), having one hollow cylinder (70A/ 70B) on hole (68) on the top surface and also having cylindrical portion (71) on the hole (72) at lower surface of plate, the said plate also having irregular shape boundary (67) at lower surface around the hole (68), the boundary covers the hole (68) and adjacent portion (69) , and the said plate (66) below hole (72) at the lower surface of main plate (62) having a mechanism (77) for installing a mosquito repellent liquid refill for working of the lamp as Mosquito repellent liquid vaporizer (MRLV), , the said main plate (62) is being covered by top cover (63) and by lower metal or alloy sheet cover (78), in such a manner that while covering by top cover (63) a part of hollow cylinder (70B) comes out through hole (64) of top cover (63),

a cap (94) is fixed on hollow cylinder (70A/70B), that is being made of two hollow cylinders (95, 97) for ventilation of hot gases and smoke of generated by burning of liquid fuel, the upper surface of cap (94) is provided with hollow cylinder (98), to act as a mosquito mat holder, the mosquito repellent mat (107) having a central slot (108) is being placed on the hollow cylinder (98) for working of the lamp as Mosquito repellent mat heater (MRMH) , the said main plate (62) is rotatable manually up to pre-determined angle, thereby adjust the flame (22) of burner (14) either on hole (68) or part (69) , for working of the lamp as Mosquito repellent mat heater (MRMH) and/or Mosquito repellent liquid vaporizer (MRLV) , the main plate (62) that is having L-shape plate (66) provided with electric heating mechanism to heat plate (133) so as to activate heating of Mosquito repellent mat (MRM) and / or Mosquito repellent liquid refill (MRLR) in a controlled manner.

The mosquito repellent lamp as claimed in claim 1, wherein the fuel tank's lower part (2) is provided with a narrow channel (99) extending from the face or boundary wall of the lower part (2) of fuel tank, that act as a vent hole for the vapors of liquid fuel, while upper part of fuel tank is placed on the lower part.

The mosquito repellent lamp as claimed in claim 1, wherein the said cylindrical structures are permanently fixed on the bottom surface of the upper part of fuel tank.

The mosquito repellent lamp as claimed in claim 1, wherein the fuel tank is made in cuboidal shape, whereby the front face, side faces are flat in shape and rear face is in semi cylindrical in shape.

5. The mosquito repellent lamp as claimed in claim 1, wherein the upper part of fuel tank and lower part of fuel tank is identical in shape, and the upper part is slightly smaller in size so that it accommodate in the lower part up to a desired depth.

6. The mosquito repellent lamp as claimed in claim 1, wherein the fuel tank is provided with at least three legs (3, 4, 5) for rest on ground and two handles (6) and (7) on both side faces to lift the fuel tank.

7. The mosquito repellent lamp as claimed in claim 1, wherein the fuel tank is made of either metal or alloy sheet or any transparent material.

8. The mosquito repellent lamp as claimed in claim 1, wherein a burner (14) consists of upper part (15), middle part (16), lower part (17) and a thin hollow rectangular tube (18) with gear (19) and rotating shaft (20), the cotton wick (21) is capable to move up and down inside hollow rectangular tube (18) with the help of rotating shaft (20) and gear (19), and the lower part of cotton wick (21) is remain submerged in fuel and upper part is kept outside the rectangular tube (18).

9. The mosquito repellent lamp as claimed in claim 8, wherein the height of flame (22) is adjusted with the gear (19) and rotating shaft (20) of burner in reference to the indicator (23) being attached to the burner.

10. The mosquito repellent lamp as claimed in claim 1, wherein the level indicator (25) is fixed in the upper surface of hollow cylinder (24) of fuel tank (1) and the lower hollow portion of floater (33) floats on fuel in fuel tank (1).

11. The mosquito repellent lamp as claimed in claim 1, wherein the mosquito repellent mat is placed either on the top surface of plate (66) or on the top surface of cap (94).

12. The mosquito repellent lamp as claimed in claim 1, wherein the middle part (37) and fuel tank is identical in shape and configuration.

13. The mosquito repellent lamp as claimed in claim 1, wherein the middle part (37) is placed detachably with main plate (62) on the top surface of fuel tank (1) so that the burner (14) gets covered and in such condition cotton wick (21) is burnt with fuel.

14. The mosquito repellent lamp as claimed in claim 1 and 13, wherein the middle part (37) having a wall (54) in center part and holes (55) are made in the lower part of wall (54), the said wall (54) is fixed between the grooves (52) and (53) in the left and right walls of middle part (37). .

15. The mosquito repellent lamp as claimed in claim 1, 13 and 14, wherein the apertures / holes (51) and (55) are made for fresh air to burn the cotton wick in a flame (22) and remains stable.

16. The mosquito repellent lamp as claimed in claim 1, wherein middle part (37) having a circular flat disc that acts as a base (56) to hold main plate (62), the height of the upper portion of the base (56) is equal to height of main plate (62) and the said main plate is rotatable on base (56).

17. The mosquito repellent lamp as claimed in claim 1 and 16, wherein the middle part (37) having two barriers (57) and (58) to limit the rotation of the main plate (62) not beyond a pre-determined angle.

18. The mosquito repellent lamp as claimed in claim 1 and 16, wherein the barriers (57) and (58), stops lever (86) attached on main plate (62) to rotate more than a fixed angle and retain the flame (22) within the boundary (67)

19. The mosquito repellent lamp as claimed in claim 1 and 16, wherein the middle part (37) having two handles (59) and (60) being attached permanently on two side faces of boundary of middle part (37) at left and right side from outside.

20. The mosquito repellent lamp as claimed in claim 1 and 18, wherein the middle part (37) is kept over fuel tank (1) by using handles (59) and (60) and at the same time a cut (61) is made in the bottom of right face of middle part (37) to incorporate the shaft (20) of burner (14).

21. The mosquito repellent lamp as claimed in claim 1, wherein the cylindrical part (73) comprises a boundary (74) of the shape of L-shape plate (66).

22. The mosquito repellent lamp as claimed in claim 1, wherein the part (77) is a hollow cylinder, whereby in the top portion of this cylinder, holes are made in the circumference and at the lower part of this hollow cylinder threads are cut in anti-clockwise direction, so that a mosquito repellent liquid refill (100) is screwed in the thread by rotating mosquito repellent liquid refill (100) in anticlockwise direction.

23. The mosquito repellent lamp as claimed in claim 1, wherein the main plate (62) is covered with a top cover (63) after fitting plate (66) in the lower part

(73) of main plate (62).

24. The mosquito repellent lamp as claimed in claim 1 and 23, wherein the top cover (63) consist a hole (64) that allow to pass the hollow cylinder (70B) attached at the top surface of plate (66), hence, when top cover (63) is fitted over lower part (73), then some part of hollow cylinder (70B) comes out through hole (64) of top cover (63).

25. The mosquito repellent lamp as claimed in claim 1 and 23, wherein the top cover (63) comprise a safety cover (65) in a hollow cylinder structure so as when top cover (63) is fitted on lower part (73) then safety cover (65) acts as an safety cover for electric heating mechanism.

26. The mosquito repellent lamp as claimed in claim 1 and 25, wherein the top cover (63) is attached in the holes (87),(88),(89),(90),(91),(92),(93) of lower part (73) with the help of screws.

27. The mosquito repellent lamp as claimed in claim 1 and 25, wherein the main plate having handles (84) and (85) and lever (86), the main plate (62) can be rotated on the base (56) of middle part (37) with the help of lever (86). Handle (85) and lever (86) are combined and has been attached on the top surface of main plate (62) with the help of screws.

28. The mosquito repellent lamp as claimed in claim 1, wherein the cap (94) is made of two hollow cylinders i.e. inner hollow cylinder (95) and outer hollow cylinder (97) and fitted in hollow cylinder (70A or 70B) in such a manner that hot gases and smoke being escaped from the burner release in the atmosphere by maximum utilization of their heat.

29. The mosquito repellent lamp as claimed in claim 1 and 28, wherein the hollow cylinder (98) is attached with cap (94), whereby a mosquito repellent mat is installed in the hollow cylinder (98) and thereby get heated with hot gases and smoke coming from burner.

30. The mosquito repellent lamp as claimed in claim 1 and 29, wherein the mosquito repellent mat (107) is a circular or triangular or more than three edges such as square in shape, provided with a slot in center (108).

31. The mosquito repellent lamp as claimed in claim 1, wherein the said lamp is capable of being used as a light lamp in normal condition, when the flame of burner is adjusted to a certain height and light is coming through only glass window of middle part (37).

32. The mosquito repellent lamp as claimed in claim 1, wherein the said lamp is capable of being used as a Mosquito repellent mat heater (MRMH) , when main plate (62) is rotated to its maximum in anti-clockwise direction while it is kept on middle part (37) of base (56) and the center of the hole (68) comes on the top of flame (22) of burner (14), the flame (22) is below hole (68) and hollow cylinder (70B) is attached above hole (68), the hot gases and smoke produced from flame (22) comes out in open while transferring heat to cap (94) and which in turn transferring heat to the top surface of cap (94) and heating the same, whereby the repellent mat is installed, thereby lamp working as Mosquito repellent mat heater (MRMH). . 33. The mosquito repellent lamp as claimed in claim 1, wherein the said lamp is capable of being used as a Mosquito repellent liquid vaporizer (MRLV) , when main plate (62) is rotated to maximum in clock wise direction from the existing position so that lever (86) touches barrier (57), thereby, the center of part (69) of plate (66) is above flame (22) of burner (14) and hot gases and smoke produced by flame (22) strikes part (69) inside boundary (67) and remains within boundary (67) and reaches hole (68), the hot gases and smoke transfer its heat to part (69) and boundary (67) and thereby refill (100) which is filled with mosquito repellent liquid is attached in mechanism (77) get heated from its rod (104), the mosquito repellent liquid absorbed by rod (104) evaporates and spreads in the air and repels mosquitoes.

34. The mosquito repellent lamp as claimed in claim 1, wherein the electric heating mechanism to heat plate (133) and hollow cylinder (135) through one or more thermistor units, fixed in cover plate or mold plate (113) that is operationally configured with L-shape plate (66).

35. The mosquito repellent lamp as claimed in claim 1 and 34, wherein the electric heating mechanism is capable to achieve temperature of plate (133) and hollow cylinder (135) through all thermistor units between 100°C to 175°C, by varying the position of switches, electric supply with indication of LED lights, so as to achieve heating in a controlled manner.

36. The mosquito repellent lamp as claims in claim 1 to 35, is preferably working on flame heating mechanism, whereby either (a) flame (22) provide heating to metal or alloy plate (66), so as to obtain heating at the inner surface of the hole

(72) of metal or alloy plate, whereby the rod is inserted of mosquito repellent liquid refill (100) and heated and the mosquito repellent liquid absorbed by rod (104) evaporates, or (b) flame (22) provide heating to the top surface of cap (94) whereby the mosquito repellent mat is placed, and thereby the mosquito repellent ingredients in the mat (107) evaporates.

37. The mosquito repellent lamp as claims in claim 34, the electric heating mechanism is assembled on plate (66) in such a manner that hole (136) of plate (133) and hole (72) of plate (66) are concentric.

38. The mosquito repellent lamp as claims in claim 34, wherein the electric heating mechanism is capable to achieve low or high temperature through all thermistor units.

39. The mosquito repellent lamp as claims in claim 34, wherein the electric heating mechanism is capable to achieve temperature between 130°C to 175°C through all thermistor units by varying the position of switch.

40. The mosquito repellent lamp as claims in claim 34, wherein the electric heating mechanism is capable to achieve temperature between 100°C to 125°C in one position (low) and temperature between 130°C to 175°C in another position (high) through all thermistor units by varying the position of switch.

41. The mosquito repellent lamp as claims in claim 34, wherein the electric heating mechanism is capable to achieve temperature between 100°C to 115°C in one position (low) , between 120°C to 125°C in second position (medium), and between 130°C to 175°C in third position (high), through all thermistor units by varying the position of switches.

42. The mosquito repellent lamp as claims in claim 34, wherein the electric heating mechanism is capable to achieve temperature between 100°C to 175°C through all thermistor units by incorporating potentiometer in electric heating mechanism.