FIELD OF THE INVENTION
[1] The present disclosure relates to a food processor. More particularly, the present disclosure relates to a food processor with various mode such as manual, grind and blend and switchable to operate in manually controlled mode or predetermined speed sequences.
BACKGROUND OF INVENTION
[2] Nowadays, food processors are designed for use in so-called industrial kitchens and also for domestic use. A common feature of these machines is that the cutting tool at the bottom of the basin normally includes two knives that rotate at high speeds, typically at speeds of up to 12000±15% rpm. The knives are sharp and consequently the machine must be constructed to prevent the fingers or the hand of the person operating the machine coming into contact with the knives when the machine is in use.
[3] User selectable motor speed controls and timers were incorporated into blenders to facilitate greater consistency from drink to drink, but the user had to reset the controls, each time a different kind of drink was to be made, and most times a different ingredient was added.
[4] More recently, digital electronics has made it feasible for blenders to include memory in which is stored the different motor speeds and operating intervals required for making a plurality of kinds of drinks.
[5] US2002/0009017Al discloses a programmable drink blender (20) as shown in FIG. 1 which includes a blender motor (25), a user interface and display (24) having a plurality of buttons for entry of various user selections, a base memory storing a blend program, a key card having a memory storing a blend program, a socket receiving the key card, and a processor for controlling blender motor (25) in accordance with the blend program. The blend program has a plurality of operating segments with variable blend program operating characteristics. The user presses selected buttons to cause processor to modify and save any desired characteristics of the blend program. The user also presses selected buttons(30) to cause processor (62) to copy the blend program from memory in key card (50) to base memory (70), and vice versa.
[6] US2009/0097351A1discloses an electronic hand mixer for processing food materials as shown in FIG. 2A and 2B, comprising: one or more beaters;a housing:a drive motor mounted in the housing, the drive motor adapted to apply rotational force to the beaters; a power control device for controlling electrical power supplied to the drive motor. FIG 2A shows that the hand mixer having a handle 130, a display 100, a control panel 120 and an eject shaft 140 mounted on housing over the base 150. The control panel 120 with display 110 is shown in FIG 2B. The control panel 120 has a keypad for receiving instructions entered by users, having keys such as ON key 121, preset key 122, timer key 123, burst key 124 and OFF key. A mixer also has1a microprocessor for processing and sending signals to the power control device; and a memory for storing the instructions, wherein: the instructions comprise at least one user-defined mixing course, the user-defined mixing course comprises one or more mixing operations, and each of the mixing operations comprises a user-defined running speed of the drive motor associated with a user-defined running period of time of the drive motor.
[7] WO2016/070232Al discloses food and beverage preparation sequence recording and playback. This document relates to the operation of a kitchen appliance. A processor receives a stored sequence of user settings and at least one recorded parameter, and applies the stored sequence of user settings to the kitchen appliance. A sensor senses at least one sensed parameter while the stored sequence of user settings is applied to the kitchen appliance. The processor determines a difference between the at least one sensed parameter and corresponding recorded parameters and, if the determined difference exceeds a difference threshold, adjusts at least one user setting applied.
[8] In the above mentioned prior arts, there are pre-stored programs for blending and also option for modifying those programs on the basis of user input. Since, blending of food requires different set of speed of motor for operation with respect to the different time, all meant for blending food only, not seems fit for grinding purposes, thus any user defined sequence may not provide a good grinding experience. None of the prior art provides the grinding and mixing modes of operation with predefined sequence of operation with respect to timer input. For grinding and mixing, the user would require a different apparatus.

OBJECT OF THE INVENTION
[9] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed herein below.
[10] It is a general or primary object of the present disclosure to provide a food processor with various switchable modes such as manual, grind and blend.
[11] It is another object of the present disclosure is to provide a food processor suitable to carry out all type operation either by using pre-stored sequence or user defined inputs.
[12] It is yet another object of the present disclosure is to provide that in the manual mode, the microprocessor processes the user selected speed and provides processed signal in the form of a plurality of pulses to the drive circuit for driving the motor at the user selected speed.
[13] It is still another object of the present disclosure is to provide that in the grind mode or the blend mode, the microprocessor provides signal to the drive circuit, in the form of a digital signal, for driving the motor at a predetermined sequence of speed stored in a memory associated with the microprocessor.
[14] It is a further object of the present disclosure to provide a method of processing in a food processor with various switchable modes such as manual, grind and blend.

SUMMARY OF THE INVENTION
[15] This summary is provided to introduce concepts related to food processor and various operations carried out in a food processor which are defined by its modes. 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.
[16] The present disclosure provides a food processor comprising a motor module with a drive circuit, a microprocessor connected to the drive circuit of the motor module. The food processor has a speed selector for allowing user to select the speed of the motor and configured to provide the user selected speed, to the electrically connected microprocessor, as a speed input. The food processor has a mode selector for allowing user to select a mode from a plurality of modes, and configured to provide the user selected mode, to the electrically connected microprocessor, as a mode input; and a time selector for allowing user to select a time, and configured to provide the user selected time, to the electrically connected microprocessor, as a time input.
[17] In an aspect, the present disclosure provides that the plurality of modes includes manual mode, grind mode and blend mode.
[18] In another aspect, the present disclosure provides that the time selector is electrically connected to a 555 timer.
[19] In an embodiment, the present disclosure provides that in the manual mode, the microprocessor processes the user selected speed and provides processed signal in the form of a plurality of pulses to the drive circuit for driving the motor at the user selected speed.
[20] In another aspect, the present disclosure provides that the user selected speed can be selected in the range of 8000rpm to 12000±15% rpm.
[21] In another aspect, the present disclosure provides that the plurality of pulses comprises at least 5 pulses, where each pulse having an ON signal for 2 seconds and an OFF signal for one second along with pulses for driving the motor at the user selected speed for user selected time.
[22] In another embodiment, the present disclosure provides that in the grind mode or the blend mode, the microprocessor provides signal to the drive circuit, in the form of a digital signal, for driving the motor at a predetermined sequence of speed stored in a memory associated with the microprocessor.
[23] In another aspect, the present disclosure provides that the digital signal comprises of at least 5 pulses, where each pulse having an ON signal for 2 seconds and an OFF signal for 1 second, along with the pulses for driving the motor at a predetermined sequence of various speed based on the predetermined sequence.
[24] In another aspect, the present disclosure provides that in the grind mode, the predetermined sequence of various speed for driving the motor comprises a low speed for a first predetermined time, a high speed for a second predetermined time followed a medium for a third predetermined time followed by the high speed for the second predetermined timed and followed by the medium speed for a third predetermined time.
[25] In another embodiment, the present disclosure provides that in blend mode, the predetermined sequence of various speeds for driving the motor comprises a low speed for a first predetermined time, a high speed for a second predetermined time followed by a medium speed for a third predetermined time.
[26] In another aspect, the present disclosure provides that the low speed is (maximum speed of the motor – 3000) rpm, the medium speed is the (maximum speed of the motor – 5000) rpm and the high speed is the maximum speed of the motor.
[27] In another aspect, the present disclosure provides that the speed selector includes a rotatable knob coupled with Silicon Control Rectifier (SCR) module.
[28] In another aspect, the present disclosure provides that the mode selector includes a plurality of buttons having at least a button for each mode.
[29] In another aspect, the present disclosure provides that the time selector includes at least a button for decreasing the time and a button for increasing the time.
[30] In another aspect, the present disclosure provides that the user selected mode is indicated by an illuminating device.
[31] In another aspect, the present disclosure provides that the illuminating device is illuminated with different colour light for different mode.
[32] In another embodiment, the present disclosure provides that the food processor also has a jar with lid, an automatic service alarm of motor and a display for indicating the user selected mode, user selected speed and user selected time.
[33] In another aspect, the present disclosure provides that the display has an overload warning indicator, pause option and the jar and lid lock indicator.
[34] In another aspect, the present disclosure provides a method of processing in a food processor 300 comprising: providing a motor module 700 with a drive circuit and a microprocessor connected to the drive circuit of the motor module 700. It also comprising receiving user selected speed from speed selector and providing to the electrically connected microprocessor, as a speed input, receiving user selected mode from mode selector and providing to the electrically connected microprocessor, as a mode input and receiving user selected time from time selector and providing to the electrically connected microprocessor, as a time input and then providing signals to the drive circuit of the motor module by the microprocessor based on the user selected mode.
[35] 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.
[36] 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
[37] 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:
[38] FIGS. 1,2A and 2B illustrate the food processors in accordance with state of the art;
[39] FIG. 3 illustrate a pictorial view of food processor in accordance with an embodiment of the present disclosure;
[40] FIG. 4A and 4B illustrates the knob and display of the food processor in accordance with an embodiment of the present disclosure;
[41] FIG. 5 illustrate the start pulse for the food processor in accordance with an embodiment of the present disclosure;
[42] FIG. 6 illustrates the circuit diagram indicating the connectivity of PCB of display with motor module and knob of the food processor in accordance with an embodiment of the present disclosure.
[43] 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
[44] 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.
[45] 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.
[46] 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.
[47] 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.
[48] 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.
[49] 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.
[50] 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.
[51] FIG 3 shows the front view of the food processor 300 in accordance with the present disclosure. It has a display 500 and a rotatable knob 400 on its front surface. The knob 400 is provided as a speed regulator for allowing user to regulate the speed of the motor, and configured to provide the user selected speed to the electrically connected microprocessor, as a speed input and there are buttons are provided on display by means of touch screen as a mode selector for allowing user to select a mode from a plurality of modes, and configured to provide the user selected mode, to the electrically connected microprocessor, as a mode input. The screen of display is showing provided by user by a time selector or automatically generated time to provide the user selected time, to the electrically connected microprocessor, as a time input.
[52] FIG 4A illustrates the knob 400 of the food processor in accordance with an embodiment of the present disclosure. This is potentiometer based smooth speed control knob 400 with spring loaded “Pulse” mode also. Knob 400 also contains illuminating device 410 such as led indicators which changes colour while operation as-well-as alarm indication. The particular colour of this illuminating device 410 indicate the selected mode and indication when there is a fault. Also, there is some markings 420 around which guide user to select speed. The knob may be coupled with Silicon Control Rectifier (SCR) module.
[53] FIG. 4B illustrates the display 500 of the food processor in accordance with an embodiment of the present disclosure. Display 500 consist of an LCD screen, touch pads and microcontroller to hold the pre-set logics. LCD screen will have a mode selector 510 and individual buttons for each mode 511 and will show corresponding decremented timer values of which ever mode is selected. Display has separate touch buttons for speed increasing 520 and speed decreasing 530. Display will also show Jar lock 552, over load 553 and service alert indicator 551. There are touch pads also has button 540 for pause and start/stop operation.
[54] The food processor of the present disclosure comprises a microprocessor connected with a memory, a 555 timer and power supply. Power supply is responsible for converting 230V ac to high voltage DC to drive HVDC motor. Power supply also host speed control circuitry to control the speed of motor. Power supply also provide 5V power supply for display 500 and knob 400.
[55] The microprocessor is also connected with a motor module 700. The microprocessor receives signal regarding user selected inputs related to speed, mode and time and based on selected mode provide drive signals to motor module 700 having a motor 710. The motor 710 may be a high voltage (230V) DC powered 500W motor with linear speed control.
[56] The food processor in accordance with an embodiment of the present disclosure has a knob 400 as a speed selector for allowing user to select the speed of the motor, and configured to provide the user selected speed, to the electrically connected microprocessor. The food processor also has key pad or touch screen with buttons on the display 500 as a speed input. Also provide means for increasing or decreasing the speed. It has buttons on touch screen as a mode selector 510 for allowing user to select a mode from a plurality of modes, and configured to provide the user selected mode, to the electrically connected microprocessor, as a mode input and a time selector for allowing user to select a time, and configured to provide the user selected time connected ted to the 555 timer, to the electrically connected microprocessor, as a time input.
[57] In case, the user selected the manual mode, the microprocessor processes the user selected speed and provides processed signal in the form of a plurality of pulses to the drive circuit for driving the motor 710 connected to the motor module 700 at the user selected speed. In this mode, the user can select the speed in the range of 8000 rpm to 12000±15% rpm.
[58] FIG. 5 illustrates the start pulse for the food processor in accordance with an embodiment of the present disclosure. For each of the modes, the start pulse comprises 5 pulses of ON/OFF Pulse. Each pulse is of 3 seconds within which it comprises a 2 seconds ON pulse and 1 second OFF pulse as shown in figure. Thus, each mode takes around 15 seconds (5 pulses) to start the operation.
[59] In case the user selects the grind mode or blend mode, the microprocessor 600 provides signal to the motor module 700 in the form of a digital signal, for driving the motor 710 at a predetermined sequence of speed stored in a memory 620 associated with the microprocessor 600. The digital signal comprises of at least 5 pulses, where each pulse having an ON signal for 2 seconds and an OFF signal for 1 second, along with the pulses for driving the motor at a predetermined sequence of various speed based on the predetermined sequence.
[60] In the grind mode, the predetermined sequence of various speed for driving the motor comprises a low speed for a first predetermined time, a high speed for a second predetermined time followed a medium for a third predetermined time followed by the high speed for the second predetermined timed and followed by the medium speed for a third predetermined time. In an exemplary embodiment, the various speed for various time in grind mode are recorder and presented in tabulated format as below. The sequence shown at 150 seconds is the mode sequence of operation in grind mode.

TABLE 1
[61] In blend mode, the predetermined sequence of various speed for driving the motor comprises a low speed for a first predetermined time, a high speed for a second predetermined time followed by a medium speed for a third predetermined time. In an exemplary embodiment, the various speed for various time in blend mode are recorder and presented in tabulated format as below. The first 15 seconds are used by start pulse and then operates as per selected mode. The sequence shown at 90 seconds is the mode sequence of operation in blend mode.

TABLE 2
[62] In grind and blend mode, the low speed is (maximum speed of the motor – 3000) rpm, the medium speed is the (maximum speed of the motor – 5000) rpm and the high speed is the maximum speed of the motor.
[63] FIG. 6 illustrates the circuit diagram indicating the connectivity of PCB of display 500 with motor module 700 and knob 400 of the food processor in accordance with an embodiment of the present disclosure. The motor 710 is connected to the microprocessor 600 though an OLP switch. The display 500 also has a connectivity with a factory reset switch 802 and jar lock micro switch 810. Here Jar lock or unlock condition is sensed using a micro switch. This feature will protect the user form accidents due to improper locking or when lid is open. Motor will not start until jar is lacked properly.
[64] In the circuit as shown in FIG 7, input, i.e. 230V ac, is fed in to the power supply PCB. Power supply will produce 5V DC and 230V DC, where 5V is given to display 500 and 230V DC is driven to HVDC motor 710 through an OLP switch. Display 500 will send control signal back to the power to control the speed of the motor based on the mode and PRESET logic implemented in the control card. Knob 400 may be connected to the display 500 via 7 wire connector. Knob 400 will give feedback based on the knob position. User can do manual speed control via knob and manual speed control will be given more priority compared to PRESET. Jar lock microswitch 801 and reset button 802 are also connected to the display 500. Reset provision is provided to bring back the mixer to factory condition.
Equivalents
[0064] 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 food processor 300 comprising:
a motor module 700 with a drive circuit;
a microprocessor connected to the drive circuit of the motor module 700;
a speed selector for allowing user to select the speed of the motor 710, and configured to provide the user selected speed, to the electrically connected microprocessor, as a speed input;
a mode selector 510 for allowing user to select a mode from a plurality of modes, and configured to provide the user selected mode, to the electrically connected microprocessor, as a mode input;
a time selector for allowing user to select a time, and configured to provide the user selected time, to the electrically connected microprocessor, as a time input.
2. The food processor 300 as claimed in claim 1, wherein the plurality of modes includes manual mode, grind mode and blend mode.
3. The food processor 300 as claimed in claim 1, wherein the time selector is electrically connected to a 555 timer.
4. The food processor 300 as claimed in claim 3, wherein the manual mode, the microprocessor processes the user selected speed and provides processed signal in the form of a plurality of pulses to the drive circuit for driving the motor 710 at the user selected speed.
5. The food processor 300 as claimed in claim 4, wherein the user selected speed can be selected in the range of 8000 rpm to 12000±15% rpm.
6. The food processor 300 as claimed in claim 4, wherein the plurality of pulses comprises at least 5 pulses, where each pulse having an ON signal for 2 seconds and an OFF signal for one second along with pulses for driving the motor 710 at the user selected speed for user selected time.
7. The food processor 300 as claimed in claim 2, wherein the grind mode or the blend mode, the microprocessor provides signal to the drive circuit, in the form of a digital signal, for driving the motor 710 at a predetermined sequence of speed stored in a memory associated with the microprocessor.
8. The food processor 300 as claimed in claim 7, wherein the digital signal comprises of at least 5 pulses, where each pulse having an ON signal for 2 seconds and an OFF signal for 1 second, along with the pulses for driving the motor at a predetermined sequence of various speed based on the predetermined sequence.
9. The food processor 300 as claimed in claim 8, wherein the grind mode, the predetermined sequence of various speed for driving the motor comprises a low speed for a first predetermined time, a high speed for a second predetermined time followed a medium for a third predetermined time followed by the high speed for the second predetermined timed and followed by the medium speed for a third predetermined time.
10. The food processor 300 as claimed in claim 8, wherein in blend mode, the predetermined sequence of various speed for driving the motor comprises a low speed for a first predetermined time, a high speed for a second predetermined time followed by a medium speed for a third predetermined time
11. The food processor 300 as claimed in either of claims 9- 10, wherein the low speed is (maximum speed of the motor – 3000) rpm, the medium speed is the (maximum speed of the motor – 5000) rpm and the high speed is the maximum speed of the motor.
12. The food processor 300 as claimed in claim 1, wherein the speed selector includes a rotatable knob 400 coupled with Silicon Control Rectifier (SCR) module.
13. The food processor 300 as claimed in claim 1, wherein the mode selector 510 includes a plurality of buttons having at least a button for each mode.
14. The food processor 300 as claimed in claim 1, wherein the time selector includes at least a button for decreasing the time and a button for increasing the time.
15. The food processor 300 as claimed in claim 1, wherein the user selected mode is indicated by an illuminating device 410.
16. The food processor 300 as claimed in claim 15, wherein the illuminating device 410 is illuminated with different color light for different mode.
17. The food processor 300 as claimed in claim 1, further comprises a jar with lid, an automatic service alarm of motor and a display 500 for indicating the user selected mode, user selected speed and user selected time.
18. The food processor 300 as claimed in claim 17, wherein the display 500 has an overload warning indicator, pause option and the jar and lid lock indicator.
19. A method of processing in a food processor 300 comprising:
providing a motor module 700 with a drive circuit;
providing a microprocessor connected to the drive circuit of the motor module 700;
receiving user selected speed from speed selector and providing to the electrically connected microprocessor, as a speed input;
receiving user selected mode from mode selector 510 and providing to the electrically connected microprocessor, as a mode input;
receiving user selected time from time selector and providing to the electrically connected microprocessor, as a time input;
providing signals to the drive circuit of the motor module by the microprocessor based on the user selected mode.