Description:A MIXER GRINDER WITH A SENSING MECHANISM AND A METHOD OF WORKING THEREOF

FIELD OF THE INVENTION
[0001] The present disclosure relates to a mixer grinder with a sensing mechanism. More particularly, the present disclosure relates to a method of working of a mixer grinder with a sensing mechanism.

BACKGROUND OF INVENTION
[0002] Generally, a Mixer Grinder appliance consists of a base unit which houses the motor (1 no’s), Jars (n no’s) and corresponding lids of the jars (n no’s). Usually during grinding or mixing, the jar (with the contents to be grinded) with lid closed manually by user, is fixed over the base unit where the jar impeller couples with the motor shaft and then the user turns ON the mixer grinder power to perform the required grinding or mixing operation. This is the regular operating procedure. In case the user turns on the mixer without ensuring that the jar or the lid on the jar is locked properly, there are specific scenarios (as explained below) which can make the setup un-safe for use. These are as follows:
• If the Lid of the Jar is not properly fastened there is a chance of an injury to the user.
• If the Jar & base unit are not properly connected, motor may stall and come under unnecessary load and get damaged. It may also damage the impellers and coupling between the Jar and the base unit.
• If the Jar Lid is not tightly closed it can lead to spillage of contents while grinding/mixing is in operation and cause a risk of short circuit if the spilled liquid enters the electrical parts.
• If the lid is not present and user accidentally turns on the Mixer, it can lead to big spillage and may cause serious injury as the contents would rush out of the jar and hit the user.
[0003] To ensure these scenarios do not occur, a new technology making use of an innovative approach for sensing the position of the lid is introduced in Mixer grinder where the base unit will get enabled to run only when proper locking of the lid and the jar are sensed and verified.
[0004] 202211024560 discloses a mixer grinder 100 which has a sensing mechanism for sensing the lid 200 to jar 300 and jar 300 to base 500 connection as shown in FIG. 1. 202211024560 is the parent application of the present disclosure. The lid 200 having a magnet M 210 disposed upon at least a portion on circumferential portion of the lid 200 and the handle 400 comprises a sensing mechanism configured to sense the connection between the lid 200 and the jar 300 and provide a signal to the base 500 and the base 500 comprising a light spectrum detector 520. In this mixer grinder 100, the power is provided to the motor when the signal sent by the sensing mechanism is received by the light spectrum detector 520 and when lid 200 is securely connected to jar 300 and the jar 300 is securely connected to base 500 only then base received signal and activates the motor to operate. This mechanism ensures the secure connection between jar 300 to lid 200 and jar 300 to base 500 and avoid accident due to non-connection or loose connection.
[0005] This type of mixer grinder having a battery 431 in the handle 400 to provide power to signal generator which generates signal upon connection of lid 200 and jar 300. Since, battery life is a constraint, thus, if battery is dead whole module needs to be replaced for all 3 jars. Service engineer has to visit min 3 times just to change battery. Also, waterproofing will be challenging to implement which makes it a costly system. Moreover, while grinding if battery gets exhausted, mixer may stop. Indication further reduces power consumption. Any additional indication to user will consume more power and reduce battery life. As module is to be replaceable, E-Waste will be generated. The present application eliminates the drawbacks of this application by improving the sensing mechanism.
[0006] Many other mixer or grinder are available which does not require any battery to sense the jar to lid and jar to base connection. US 10,357,749B2 discloses an interlocking method and blending apparatus which includes a base, container and lid. The apparatus comprises light emitters, light sensors and light reflectors. Light is emitted by the light emitters from the base, through the container and toward the lid. Light reflectors in the lid reflect the light back through the container and toward the base. The light sensors detect the reflected light and can be used to control operation of the blender and illumination of the container. The light emitters and light sensors may be at the base and/or the bottom of the container. In this application, the at least one light reflector of the lid comprises at least one prism shaped light ring in the lid, which increases the cost. The light ring is located in a rim of the lid, a shape of the light ring substantially corresponds to a shape of the container lid, and the light ring is located interior to an outer edge of the container lid. Here the light needs to travels a longer distance, thus a minor discrepancy in the path of light will interrupt the functioning and require the need of replacing the jar, which again increases waste and cost. This US patent is not making use of the magnetically activated plunger to allow/obstruct the flow of light for sensing. Reflected light is sensed in that approach for which the light intensity has to be strong, resulting in a higher power light source. Also, the design limits the jar and lid material to be transparent (plastic most likely) to allow the light to flow through. If the design requires a solid colour or needs to be made of metal, it will be difficult to implement.
[0007] Currently the solution present in the market alternative involves mechanical linkages, micro-switches and electronic means which are prone to damage and require complete replacement. The technique disclosed in the prior arts has the issues like break down & jamming of the levers and died out of batteries. There is a need of a robust sensing mechanism which does not require battery for its working and has components which are not prone to damage and a minor fault would not require the replacement of whole unit.

OBJECT OF THE INVENTION
[0008] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed herein below.
[0009] It is a general or primary object of the present disclosure to provide a mixer grinder with wireless sensing mechanism without the use of battery to enable the mixer grinder to operate only when lid to jar and jar to base are securely engaged which avoid accidents.
[0010] It is another object of the present disclosure is to provide a mixer grinder with sensing mechanism to provide a wireless solution which reduces the customer’s effort in aligning the jar and base unit for proper assembly.

SUMMARY OF THE INVENTION
[0011] This summary is provided to introduce concepts related to a mixer grinder and a mechanism associated with it to which ensure that the jar with the lid and jar with the base is securely connected before the operation of motor provided in the base. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[0012] The present disclosure provides a mixer grinder with a sensing mechanism comprising: a jar with an open end, a bottom end and a handle, the handle having an upper portion, a lower portion and a vertical portion extending between the upper portion and the lower portion and a lid detachably mounted on the open end of the jar, the lid having a magnet M disposed at least a portion on circumferential portion of the lid. The mixer has a base having a motor and a bore to secure the jar by receiving the bottom end of the jar and a power supply to provide power to the motor. In this mixer grinder, the base has a transmitter and a receiver provided adjacent to one another on the surface of the base, and the sensing mechanism is configured to receive signal from the transmitter and sending signal to the receiver, when the lid is securely connected with the jar and the jar is securely connected to the base, the base is configured to provide power to the motor when the signal transmitted by the sensing mechanism is received by the receiver.
[0013] In an embodiment, the present disclosure provides that the sensing mechanism has at least a guide A disposed along the length of the handle configured to receive signal transmitted by the transmitter, at least a guide B disposed along the length of the handle configured to transmit signal to the receiver and a obstructer placed at the upper portion of the handle between the guide A to guide B, which allow to transmit signal from guide A to guide B, when the lid is securely connected with the jar and the jar is securely connected with the base.
[0014] In another embodiment, the present disclosure provides that the guide A has a first end and a second end and the guide B has a first end and a second end, where the guides A and B are disposed between the lower portion and upper portion through the vertical portion of the handle and signal transmitted by the transmitter, travels from the first end to the second end of the guide A allowed to transmit by the obstructer to the guide B and travels from first end to second end of the guide B and then the signal is received by the receiver.
[0015] In yet another embodiment, the present disclosure provides that the lower portion of the handle has an opening A connected with the first end of the guide A to receive signal and an opening B connected with the second end of the guide B to transmit signal.
[0016] In still another embodiment, the present disclosure provides that the first end of the guide A gets align with the transmitter and second end of the guide B gets align with the receiver when jar is secured with the base.
[0017] In a further embodiment, the present disclosure provides that the obstructer is placed between the second end of the guide A and the first end of the guide B.
[0018] In preferred embodiment, the present disclosure provides that the obstructer comprises a metallic plate or plastic plate with a metal head, placed between the guide A and Guide B. Preferably, this metallic plate and metal head magnetic in nature. When the lid is not secured with the jar the obstructer comes in between the guide A and guide B restrict the signal to pass from the guide A to guide B. However, when the lid is connected with the jar, the magnet M pulls the obstructer up and allow the light to pass the guide A to the guide B.
[0019] In more preferred embodiment, the present disclosure provides that the plate has a hole at its lower portion. When the lid is connected with the jar, the magnet M pulls the metallic plate up and the hole comes in between the second end of the guide A and the first end of the guide B to allow the light to pass the guide A to the guide B.
[0020] In another embodiment, the present disclosure provides that the upper portion of the handle has a guided spring provided above the obstructer to restrict the motion of the obstructer.
[0021] In yet another embodiment, the present disclosure provides that the transmitter is a light spectrum transmitter.
[0022] In still another embodiment, the present disclosure provides that the receiver is a light spectrum receiver.
[0023] In further embodiment, the present disclosure provides that the vertical portion has projections for the fingers to hold the handle by user.
[0024] In another embodiment, the present disclosure provides that the guide A and guide B is light tube.
[0025] In an aspect, the present disclosure provides a method of working of a mixer grinder with sensing mechanism, the method comprising the steps of: mounting detachably a lid on the open end of a jar, the jar having a handle, the handle having an upper portion, a lower portion and a vertical portion extending between the upper portion and the lower portion, and the lid having at least a magnet M disposed at at least a portion on circumferential portion of the lid, then mounting the jar upon the base, the base has a transmitter and a receiver provided adjacent to one another on the surface of the base. The method includes activation of a sensing mechanism provided in the handle upon mounting the lid on the jar, the sensing mechanism configured to receive signal from the transmitter and provide signal to the receiver, when the lid is securely connected with the jar and the jar is securely connected to the base, receiving the signal sent by sensing mechanism by the receiver, and providing power to a motor positioned in the base by a power supply, when the signal sent by the sensing mechanism is received by the receiver.
[0026] In a preferred embodiment of the present disclosure, the motor may be an induction motor, universal motor or, high voltage direct current motor or brushless direct current motor.
[0027] To further understand the characteristics and technical contents of the present subject matter, a description relating thereto will be made with reference to the accompanying drawings. However, the drawings are illustrative only but not used to limit the scope of the present subject matter.
[0028] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF DRAWINGS
[0029] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
[0030] FIG. 1 illustrates a mixer grinder in accordance with state of the art;
[0031] FIG. 2 illustrate a mixer grinder with sensing mechanism in accordance with an embodiment of the present disclosure.
[0032] FIG. 2A illustrate the sub components of mixer grinder in unconnected manner in accordance with an embodiment of the present disclosure.
[0033] FIG. 3 illustrate a single module with transmitter and receiver in a single unit in accordance with an embodiment of the present disclosure.
[0034] FIG. 4 illustrate a guide in accordance with an embodiment of the present disclosure.
[0035] FIG. 5A illustrate the design and working of an obstructer in accordance with an embodiment of the present disclosure.
[0036] FIG. 5B illustrate the design and working of an obstructer in accordance with an embodiment of the present disclosure.
[0037] FIG. 5C illustrate the structure of an obstructer with hole in accordance with an embodiment of the present disclosure.
[0038] FIG. 6A illustrate the design and working of an obstructer in accordance with an embodiment of the present disclosure.
[0039] FIG. 6B illustrate the design and working of an obstructer in accordance with an embodiment of the present disclosure.
[0040] FIG. 6C illustrate the structure of an obstructer without hole in accordance with an embodiment of the present disclosure.
[0041] The figures depict embodiments of the present subject matter for illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION OF INVENTION
[0042] The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0043] It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
[0044] The terminology used herein is to describe particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
[0045] It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
[0046] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0047] In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
[0048] Hereinafter, a description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the present disclosure.
[0049] The present disclosure provides an innovative technology which does not make use of any electrical wire or lever or electronics in the jar to determine that the jar lid is secured and is achieved by sensing the return of a channelized, incident beam of light through the Jar handle body making use of light guides and total internal reflection. The light will be incident on the guide from the top of the base unit, into the bottom of the jar where it will be guided to a magnetically activated plunger mechanism herein referred as obstructer, completely inside the handle and not exposed to the user.
[0050] The obstructer will either allow the light to pass onto another guide or not allow the light to pass depending on whether the lid is secured. This is achieved by the hidden magnet in the lid. When the magnet is in position because of its strong field, it will pull the magnetic plunger by compressing the spring in the handle assembly to align and pass on the light into the other guide. When magnet’s not in position because of the spring it will rest and restrict the light. The other guide will direct the light back to the base unit where it will be sensed.
[0051] The mixer grinder with sensing mechanism in accordance with the present disclosure is shown by FIG. 2. And FIG. 2A. The mixer grinder 100 with a sensing mechanism comprising: a jar 300 with an open end, a bottom end and a handle 400, the handle 400 having an upper portion 410, a lower portion 430 and a vertical portion 420 extending between the upper portion 410 and the lower portion 430 as shown in FIG. 2 and in FIG. 2A and a lid 200 detachably mounted on the open end of the jar 300, the lid 200 having a magnet M 210 disposed at at least a portion on circumferential portion of the lid 200. The mixer grinder 100 has a base 500 having a motor and a bore to secure the jar 300 by receiving the bottom end of the jar; and a power supply to provide power to the motor.
[0052] In the mixer grinder 100 in accordance with an embodiment of the present disclosure, the base 500 has a transmitter 511 and a receiver 512 provided adjacent to one another in a single module 510 on the surface of the base 500, and the sensing mechanism is configured to receive signal from the transmitter 511 and sending signal to the receiver 512. When the lid 200 is securely connected with the jar 300 and the jar 300 is securely connected to the base 500, and the base 500 is configured to provide power to the motor when the signal transmitted by the sensing mechanism is received by the receiver 512.
[0053] In the mixer grinder in accordance with an embodiment of the present disclosure, the transmitter 511 and receiver 512 are provided on the base in the form of a single module 510 as shown in FIG. 3. The transmitter 511 may be a light spectrum transmitter and the receiver 512 may a light spectrum receiver.
[0054] In the present disclosure, the sensing mechanism is provided in the handle 400. This mechanism incorporates at least a guide A 440 disposed along the length of the handle 400 configured to receive signal transmitted by the transmitter 511, at least a guide B 460 disposed along the length of the handle 400 configured to transmit signal to the receiver 512.
[0055] In the present disclosure, the guide A 440 and guide B are light tubes (also known as light pipes or tubular skylights). Fig. 4 shows the structure of the guide. The guides comprise an inner core made up of material with high refractive index and an outer cladding made up of low refractive index. Due to the difference in the refractive indexes between inner core and outer cladding, the light passes through it by undergoing total internal reflection and follows a zig-zag path as shown by the arrows in the figure. The guides are structures that transmit or distribute natural or artificial light for the purpose of illumination, and are examples of optical waveguides. The light pipes or guides can be bent for certain specific applications.
[0056] In the present disclosure, the sensing mechanism of the mixer grinder 100 has an obstructer 450 placed at the upper portion 410 of the handle 400 between the guide A 440 to guide B 460, which allow to transmit signal from guide A 440 to guide B 460, when the lid 200 is securely connected with the jar 300 and the jar 300 is securely connected with the base 500.
[0057] The guide A 440 has a first end and a second end and the guide B 460 has a first end and a second end, where the guides A and B are disposed between the lower portion 410 and upper portion 430 through the vertical portion 420 of the handle 400 and signal transmitted by the transmitter 511, travels from the first end to the second end of the guide A 440 allowed to transmit by the obstructer 450 to the guide B 460 and travels from first end to second end of the guide B 460 and then the signal is transmitted to the receiver 512 placed beside the transmitter 511 and then the signal is received by the receiver 512.
[0058] For transmitting the signal, the lower portion 430 of the handle 400 has an opening A 441 connected with the first end of the guide A 440 to receive signal and an opening B 461 connected with the second end of the guide B 460 to transmit signal. As discussed above, the first end of the guide A 440 gets align with the transmitter 511 and second end of the guide B 460 gets align with the receiver 512 when jar 300 is secured with the base 500. The obstructer 450 is placed between the second end of the guide A 440 and the first end of the guide B 460, which further allows or restrict the signal to travel from guide A 440 to guide B 460 depending upon the connection between jar 300 and lid 200 of the mixer grinder 100.
[0059] In the present disclosure, the obstructer 450 comprises a metallic plate or plastic plate 451 with a metal head 452, placed between the guide A 440 and Guide B 460. The plate 451 may have a hole at its lower portion as shown in FIG. 5A and FIG.5B. When the lid 200 is not secured with the jar 300 the obstructer 450 comes in between the guide A 440 and guide B 460 restricts the signal to pass from the guide A 440 to guide B 460, as shown in FIG. 5A. When the lid 200 is secured with the jar 300, the magnet M 210 pulls the metallic plate 451 up and the hole comes in between the second end of the guide A 440 and the first end of the guide B 460 to allow the light to pass the guide A 440 to the guide B 460 as shown in FIG. 5B. The structure of obstructer as depicted in FIG. 5A and 5B is shown in FIG. 5C.
[0060] In the present disclosure, the obstructer may not have a hole at its lower portion as shown in FIG. 6A and FIG.6B. When the lid is not secured with the jar the obstructer comes in between the guide A and guide B restrict the signal to pass from the guide A to guide B, as shown in FIG. 6A and when the lid is connected with the jar, the magnet M pulls the obstructer up and allow the light to pass the guide A to the guide B as shown in FIG. 6B. The structure of obstructer as depicted in FIG. 6A and 6B is shown in FIG. 6C.
[0061] Thus, in the present invention, firstly the secured connection of jar and lid brings the magnet provided in the lid close to the obstructer which pulls the obstructer up and provides a non-obstructed path to signals from guide A to guide B. Secondly, the secured connection of jar and the base will be ensured by the reception of IR signal by the guide A transmitted by transmitter provided on the base and transmission of said signal from guide A to guide B and then eventually received by receiver placed on the base. Thus, upon satisfying the above mentioned two condition, the motor will activate or will start receiving power to operate, which is represented in the below table.

Lid to Jar connection Jar to Base Connection Product
Not connected Not connected OFF
Not connected Connected OFF
Connected Not connected OFF
Connected Connected ON

Table 1
[0062] Also, in the mixer grinder, the upper portion of the handle has a guided spring provided above the obstructer to restrict the motion of the obstructer and the vertical portion has projections for the fingers to hold the handle by user.
[0063] An embodiment of present disclosure provides a method of working of a mixer grinder with sensing mechanism, the method comprising the steps of: mounting detachably a lid on the open end of a jar, the jar having a handle, the handle having an upper portion, a lower portion and a vertical portion extending between the upper portion and the lower portion, and the lid having at least a magnet M disposed at at least a portion on circumferential portion of the lid and mounting the jar upon the base, the base has a transmitter and a receiver provided adjacent to one another on the surface of the base.
[0064] The method also has a step of activation of a sensing mechanism provided in the handle upon mounting the lid on the jar, the sensing mechanism has guides A and B configured to receive signal from the transmitter and provide signal to the receiver, when the lid is securely connected with the jar and the jar is securely connected to the base, then receiving the signal sent by sensing mechanism by the receiver, and providing power to a motor positioned in the base by a power supply, when the signal sent by the sensing mechanism is received by the receiver. When jar is connected over the base by connecting the protrusions of the jar in corresponding grooves provided in the inner circumferential surface of the base. Only upon proper connection, the signal generated from transmitter, received by the guide A, travels from guide A to guide B and falls from guide B upon the receiver provided on the base. The reception of signal by the receiver over the base will ensure the proper connection of jar with base.
[0065] This will enhance user safety in an innovative way and a world class user experience by not letting the whole unit operate without proper alignment between lids to jar and jar to base unit. The customer will experience a hassle free operation of Mixer grinder, and would not have to worry about spillage in case the lid of jar loosen up as the mixer would stop. Instead of using a mechanical lever and micro switch, light will be used to sense the position of the lid. By the use of guided light, the jar handle can be made more attractive by displaying green color when the lid is fastened correctly and red while the lid is not fastened correctly.

TECHNICAL ADVANTAGES
[0066] This will enhance customer safety by not letting the whole unit to operate without proper alignment and connection is established between lid to jar and jar to base unit. It ensures the mixer won’t start if either the lid or the jar position on the base is not secured.
[0067] The present disclosure provides a major shift from mechanical to optical/electronics based solution enhances the customer’s experience in aligning the jar and base unit for proper usage and safety. By the use of guided light, the jar handle can be made more attractive by displaying colors indicating the correct or incorrect fastening of the lid
[0068] Aesthetics can be improved considerably.
[0069] It does not require any additional electronics/ battery to be used in the jar and is a low cost solution. Connection will be established using Magnet, obstructer, transmitter & receiver and Light guides. The light source will be powered from mains supply by making use of the existing electronics itself.

Equivalents
[0070] The foregoing description of the preferred embodiment of the invention has been presented for illustration and description. It is not intended to be exhaustive, nor is it intended to limit the invention to the precise form disclosed. It will be apparent to those skilled in the art that the disclosed embodiment may be modified in light of the above teachings.
, Claims:We claim:
1. A mixer grinder (100) with a sensing mechanism comprising:
a jar (300) with an open end, a bottom end and a handle (400), the handle (400) having an upper portion (410), a lower portion (430) and a vertical portion (420) extending between the upper portion (410) and the lower portion (430);
a lid (200) detachably mounted on the open end of the jar (300), the lid (200) having a magnet M (210) disposed at at least a portion on circumferential portion of the lid (200);
a base (500) having a motor and a bore to secure the jar (300) by receiving the bottom end of the jar (300); and
a power supply to provide power to the motor;
wherein the base (500) has a transmitter (511) and a receiver (512) provided adjacent to one another on the surface of the base (500), and
the sensing mechanism is configured to receive signal from the transmitter (511) and sending signal to the receiver (512), when the lid (200) is securely connected with the jar (300) and the jar (300) is securely connected to the base (500),
the base (500) is configured to provide power to the motor when the signal transmitted by the sensing mechanism is received by the receiver (512).
2. The mixer grinder (100) as claimed in claim 1, wherein the sensing mechanism has at least a guide A (440) disposed along the length of the handle (400) configured to receive signal transmitted by the transmitter (511), at least a guide B (460) disposed along the length of the handle (400) configured to transmit signal to the receiver (512) and a obstructer placed at the upper portion (410) of the handle (400) between the guide A (440) to guide B (460), which allow to transmit signal from guide A (440) to guide B (460), when the lid (200) is securely connected with the jar (300) and the jar (300) is securely connected with the base (500).
3. The mixer grinder (100) as claimed in claim 2, wherein the guide A (440) has a first end and a second end and the guide B (460) has a first end and a second end, where the guides A (440) and B (460) are disposed between the lower portion (430) and upper portion (410) through the vertical portion (420) of the handle (400) and signal transmitted by the transmitter (511), travels from the first end to the second end of the guide A (440) allowed to transmit by the obstructer (450) to the guide B (460) and travels from first end to second end of the guide B (460) and then the signal is received by the receiver (512).
4. The mixer grinder (100) as claimed in claim 3, wherein the lower portion (430) of the handle (400) has an opening A connected with the first end of the guide A (440) to receive signal and an opening B connected with the second end of the guide B (460) to transmit signal.
5. The mixer grinder (100) as claimed in claim 3, wherein the first end of the guide A (440) gets align with the transmitter (511) and second end of the guide B (460) gets align with the receiver (512) when jar (300) is secured with the base (500).
6. The mixer grinder (100) as claimed in claim 3, wherein the obstructer (450) is placed between the second end of the guide A (440) and the first end of the guide B (460).
7. The mixer grinder (100) as claimed in claim 1, wherein the obstructer (450) comprises a metallic plate or plastic plate (451) with a metal head (452) , placed between the guide A (440) and Guide B (460).
8. The mixer grinder (100) as claimed in claim 7, wherein the plate has a hole at its lower portion.
9. The mixer grinder (100) as claimed in claim 7, wherein when the lid (200) is not secured with the jar (300) the obstructer (450) comes in between the guide A (440) and guide B (460) restrict the signal to pass from the guide A (440) to guide B (460).
10. The mixer grinder (100) as claimed in claim 7, wherein when the lid (200) is connected with the jar (300), the magnet M pulls (210) the obstructer (450) up and allow the light to pass the guide A (440) to the guide B (460).
11. The mixer grinder (100) as claimed in claim 8, wherein when the lid (200) is connected with the jar (300), the magnet M (210) pulls the metallic plate up and the hole comes in between the second end of the guide A (440) and the first end of the guide B (460) to allow the light to pass the guide A (440) to the guide B (460).
12. The mixer grinder (100) as claimed in claim 2, wherein the upper portion (410) of the handle (400) has a guided spring provided above the obstructer (450) to restrict the motion of the obstructer (450).
13. The mixer grinder (100) as claimed in claim 1, wherein the transmitter (511) is a light spectrum transmitter (511).
14. The mixer grinder (100) as claimed in claim 1, wherein the receiver (512) is a light spectrum receiver (512).
15. The mixer grinder (100) as claimed in claim 1, wherein the vertical portion (420) has projections for the fingers to hold the handle (400) by user.
16. The mixer grinder (100) as claimed in claim 2, wherein the guide A (440) and guide B (460) is light tube.
17. A method of working of a mixer grinder (100) with sensing mechanism, the method comprising the steps of:
mounting detachably a lid (200) on the open end of a jar (300), the jar (300) having a handle (400), the handle (400) having an upper portion, a lower portion (430) and a vertical portion (420) extending between the upper portion (410) and the lower portion (430), and the lid (200) having at least a magnet M (210) disposed at at least a portion on circumferential portion of the lid (200),
mounting the jar upon the base (500), the base (500) has a transmitter (511) and a receiver (512) provided adjacent to one another on the surface of the base (500),
activation of a sensing mechanism provided in the handle (400) upon mounting the lid (200) on the jar (300), the sensing mechanism configured to receive signal from the transmitter (511) and provide signal to the receiver (512), when the lid (200) is securely connected with the jar (300) and the jar (300) is securely connected to the base (500),
receiving the signal sent by sensing mechanism by the receiver (512),
providing power to a motor positioned in the base (500) by a power supply, when the signal sent by the sensing mechanism is received by the receiver (512).
18. The method as claimed in claim 17, wherein the sensing mechanism is provided with at least a guide A (440) disposed along the length of the handle (400) configured to receive signal transmitted by the transmitter (511), at least a guide B (460) disposed along the length of the handle (400) configured to transmit signal to the receiver (512) and a obstructer (450) placed at the upper portion (410) of the handle (400) between the guide A (440) to guide B (460), which allow to transmit signal from guide A (440) to guide B (460), when the lid (200) is secured with the jar (300) and the jar (300) is secured with the base (500).
19. The method as claimed in claim 18, wherein the guide A (440) has a first end and a second end and the guide B (460) has a first end and a second end, where the guides A (440) and B (460) are disposed between the lower portion (430) and upper portion (410) through the vertical portion (420) of the handle (400) and signal transmitted by the transmitter (511), travels from the first end to the second end of the guide A (440) transmitted by the obstructer (450) to the guide B (460) and travels from first end to second end of the guide B (460) and then the signal is received by the receiver (512).
20. The method as claimed in claim 19, wherein the lower portion (430) of the handle (400) has an opening A connected with the first end of the guide A (440) to receive signal and an opening B connected with the second end of the guide B (460) to transmit signal.
21. The method as claimed in claim 19, wherein the first end of the guide A (440) gets align with the transmitter (511) and second end of the guide B (460) gets align with the receiver (512) when jar (300) is connected with the base (500).
22. The method as claimed in claim 19, wherein the obstructer (450) is placed between the second end of the guide A (440) and the first end of the guide B (460).
23. The method as claimed in claim 19, wherein the obstructer (450) comprises a metallic plate or a plastic plate (451) with metal head (452), placed vertically between the guide A (440) and Guide B (460).
24. The method as claimed in claim 23, wherein the plate has a hole at its lower portion (430).
25. The method as claimed in claim 23, wherein when the lid (200) is not connected with the jar (300) the obstructer (450) comes in between the guide A (440) and guide B (460) restrict the signal to pass from the guide A (440) to guide B (460).
26. The method as claimed in claim 23, wherein when the lid (200) is connected with the jar (300), the magnet M (210) pulls the obstructer (450) up and allow the signal to pass from the guide A (440) to guide B (460).
27. The method as claimed in claim 24, wherein when the lid (200) is connected with the jar (300), the magnet M (210) pulls the metallic plate up and the hole comes in between the second end of the guide A (440) and the first end of the guide B (460) to allow the light to pass from the guide A (440) to the guide B (460).
28. The method as claimed in claim 18, wherein the upper portion (410) of the handle (400) has a guided spring provided above the obstructer (450) to restrict the motion of the obstructer (450).
29. The method as claimed in claim 17, wherein the transmitter (511) is a light spectrum transmitter.
30. The method as claimed in claim 17, wherein the receiver (512) is a light spectrum receiver.
31. The method as claimed in claim 18, wherein the guide A (440) and guide B (460) are light tubes.