FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
As amended by the Patents (Amendment) Act, 2005
&
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2006
COMPLETE SPECIFICATION
(See section 10 and rule 13)
TITLE OF INVENTION
Hands-free waste disposal system
APPLICANTS :
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030, Maharashtra, India, an Indian Company.
INVENTOR (S):
Dhakshinamoorthy Ilangathir of Crompton Greaves Limited Appliances Division, Crompton Greaves Limited, Kanjur Marg (E), Mumbai - 400042, Maharashtra India; Amin Mukund, of Crompton Greaves Limited, Lighting Division, Baroda, Gujrat, India; Jain Gourav, IDC, Kanjur Marg (E), Mumbai - 400042, Maharashtra India; all Indian Nationals.
PREAMBLE TO THE DESCRIPTION:
The following specification particularly describes the nature of this invention and the manner in which it is to be performed:

FIELD OF INVENTION:
This invention relates to the field of automation systems and equipment.
Particularly, this invention relates to a waste disposal system.
Still particularly, this invention relates to a hands-free waste disposal system.
BACKGROUND OF THE INVENTION":
Food waste disposer is a product which can be fitted below the sink and it can be switched ON and OFF manually with connected electric switches. Ideally, it includes a crushing mechanism which crushes the food items disposed into the crusher.
A user throws food waste items in the sink, then switches ON the water and motor simultaneously for crushing the food waste which is then flushed through the pipe underneath the sink.
In the use of such a conventional food disposal system, the process includes storage of food in a separate bin before it can be disposed off. This separate bin is used so that a pre-defined quantity of food may be disposed off simultaneously. The crusher and disposer may not be rated to operate negligible or relatively small amount of load. This practice of separately storing and then disposing leads to collection of waste and hygiene issues in the kitchen / sink area.
There is a need for a better and automated waste disposal system.

PRIOR ART:
CN2536302 discloses Multi-functional automatic controlled garbage treaters. The patent discloses a garbage disposer capable of disposing food.
WO03 086674 discloses a Food waste disposer and automatic process. The patent discloses automatic disposal of food waste.
KR100792024 discloses a kitchen waste pulverizer of sink. The patent discloses a food waste disposer which automatically pulverizes the food. However the device is attached below the sink and not separately.
CN 101664754 discloses a Food residue disposal. The patent discloses a food disposer where all processes of the device are controlled by a control system.
KR20090009406 discloses an Apparatus for disposing food waste. The patent discloses a food waste disposer having a separate waste collector.
None of the above patent document includes a fully automatic waste disposal with automatic sensors and crushing / treating mechanism.
OBJECTS OF INVENTION:
An object of the invention is to provide an automated waste disposal system.

Another object of the invention is to provide an automated waste disposal system used in adaptation with a kitchen sink.
Yet another object of the invention is to avoid electric switch manual interaction for user during waste disposal.
Still another object of the invention is to improve the hygiene standards of a kitchen.
An additional object of the invention is to avoid foul smell and insects in kitchen which accumulate due to waste disposal of the prior art systems.
SUMMARY OF THE INVENTION:
According to this invention, there is provided a hands-free waste disposal system comprises
- lidded waste collector adapted to be located in line with a kitchen sink;
- pipe adapted to feed water to said sink and said waste collector;
- sensing means adapted to be fitted on the interior wall of said waste collector at a pre-defined height from its operative bottom in order to sense the level of waste in the waste collector, wherein said waste collector is operated upon sensing breach of level by said sensing means;
- motor unit, fitted below said waste collector, with a crushing mechanism adapted to crush said waste received from said waste collector; and
- control mechanism to control said motor unit and flow of water feed through said pipe in accordance with pre-defined parameters.

Typically, said waste collector is a conical shaped waste collector.
Typically, said pipe is a common pipe for feeding water to said sink and to said waste collector system.
Typically, said system includes solenoid valves adapted to govern the flow of water into said waste collector and feed of collected waste to the motor unit.
Typically, said sensors are level sensors.
Preferably, said sensors are Infra Red LED sensors.
Typically, said motor includes a crushing mechanism to crush the waste before it is disposed off.
Additionally, said motor includes a treating mechanism adapted to treat the waste before it is disposed off.
Typically, said control mechanism includes a logic circuit adapted to provide crushing force in accordance with predefined parameters.
Typically, said control mechanism includes a logic circuit adapted to provide treatment options for treating waste in accordance with predefined parameters.
Typically, said control mechanism includes a timer for operating water feed waste in accordance with predefined parameters.

Typically, said control mechanism includes a timer for operating said motor unit in accordance with predefined parameters.
Typically, said control mechanism includes a controller to control solenoid valves for controlling water feed and collected waste feed.
Typically, said control mechanism includes a relay.
Typically, said control mechanism includes a microcontroller.
Typically, said motor unit includes a plurality of leaves to restrict entry of waste above dimensions in relation to the space between said leaves.
Preferably, said control mechanism is a PCB control mechanism.
Preferably, said motor unit includes an operable top lid adapted to open to receive waste from said waste collector and adapted to close during operation of said motor unit.
Preferably, said motor unit includes an operable bottom lid adapted to close to receive waste from said waste collector and adapted to open after operation of said motor unit.
Typically, said motor unit is connected to a disposal pipe adapted to provide passage for disposal of processed waste.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
The invention will now be described in relation to the accompanying drawings, in which:

Figure 1 illustrates a schematic of the system.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
According to this invention, there is provided a hands-free waste disposal system.
Figure 1 illustrates a schematic of the system.
In accordance with an embodiment of this invention, there is provided a waste collector (WC) adapted to be located in line with a kitchen sink (S). A common pipe (P) may feed water to both the sink and the waste collector. Typically, the waste collector is a conical shaped waste collector in order to channel the waste, disposed into it, downwards towards a central pipe. Typically, the waste collector is a lidded (LD) waste collector. The lid ensures that no foul smell is emitted or no insects collect in the waste that the waste collector holds.
Reference numeral (TP) refers to a kitchen sink tap.
This will be a Built-in Unit that can be placed next to kitchen sink.
Reference numeral WI refers to the water inlet to the waste collector. Solenoid valves (SV) may be employed to govern the flow of water into said waste collector and flow of collected waste into the motor unit.
In accordance with another embodiment of this invention, there is provided a sensing means (S) adapted to be fitted on the interior wall

(IW) of said waste collector at a pre-defined height from its operative bottom in order to sense the level of waste in the waste collector. The waste collector stores the disposed waste as long as this level is not breached. As the sensor senses breach in the level, the waste collector may be activated. No further waste may be disposed off while the waste collector is activated. Preferably, said sensor is an LED sensor.
Level sensor may preferably have 4 Individual Infra Red LEDs equidistant and "IR Sensor and Demodulators" exactly opposite to the LEDs to sense the food waste level.
These sensors sends signal to logic circuit (of control mechanism) which is controlling the valves and motor. Logic circuit and a Micro controller operates the water valve and also the valve just above the motor unit and also starts the motor simultaneously to crush and send the food wastes through outlet which is connected to the waste collector unit.
In accordance with yet another embodiment of this invention, there is provided a motor unit (MU), fitted below said waste collector, with a crushing mechanism adapted to crush said waste received from said waste collector. Additionally, a treating mechanism may be deployed in the motor unit to suitably treat the waste before it is disposed off.
Typically, the motor unit has one 0.5 or 0.75 Horse Power universal motor. This motor is coupled with Stainless steel a blade which is capable of cutting vegetable waste, bones etc. Preferably, rotation of the blade is maintained around 2500-2600RPM.

This Motor and Blade set up is typically completely covered with a plastic housing which is of ABS material. In between the motor unit and the waste collector, there are preferably 10 numbers of plastic or rubber leaves to avoid the crushed waste to come out of the system while it is being ground.
In accordance with still another embodiment of this invention, there is provided a control mechanism (CM) to control said motor unit. Typically, the control mechanism is a PCB control mechanism. The control mechanism controls the water supply, if needed, for crushing and the force of crushing, and the like controls. The motor unit may be fitted with operable lids (LI, L2) at its operative top and operative bottom. These lids may be appropriately engaged or disengaged with respect to the operations of receiving the waste, crushing or treating the waste, and disposing the waste.
The crushed and/or treated waste may be disposed of through a pipe at the bottom of the motor unit.
This disposal pipe may meet the pipe of the sink.
The control mechanism includes a logic gate (LG), a timer (T), a solenoid valve (S V), a relay (R), and a motor (M).
According to an exemplary embodiment, the water line and motor will be ON for about 40 seconds or less which is suggested for that particular food waste level; then the motor unit stops working. Whenever the quantity of waste reaches that particular level water and motor will be ON

for 40 seconds and it will get switched OFF. This Cycle continues without any manual control like ON or OFF.
It also allows the user to operate the device manually.
While this detailed description has disclosed certain specific embodiments of the present invention for illustrative purposes, various modifications will be apparent to those skilled in the art which do not constitute departures from the spirit and scope of the invention as defined in the following claims, and it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

We claim,
1. A hands-free waste disposal system comprising:
- lidded waste collector adapted to be located in line with a kitchen sink;
- pipe adapted to feed water to said sink and said waste collector;
- sensing means adapted to be fitted on the interior wall of said waste collector at a pre-defined height from its operative bottom in order to sense the level of waste in the waste collector, wherein said waste collector is operated upon sensing breach of level by said sensing means;
- motor unit, fitted below said waste collector, with a crushing mechanism adapted to crush said waste received from said waste collector; and
- control mechanism to control said motor unit and flow of water feed through said pipe in accordance with pre-defined parameters.

2. A system as claimed in claim 1 wherein, said waste collector is a conical shaped waste collector.
3. A system as claimed in claim 1 wherein, said pipe is a common pipe for feeding water to said sink and to said waste collector system.
4. A system as claimed in claim 1 wherein, said system includes solenoid valves adapted to govern the flow of water and flow of collected waste into said waste collector through said pipe.
5. A system as claimed in claim 1 wherein, said sensors are level sensors.

6. A system as claimed in claim 1 wherein, said sensors are Infra Red LED sensors.
7. A system as claimed in claim 1 wherein, said motor includes a crushing mechanism to crush the waste before it is disposed off.
8. A system as claimed in claim 1 wherein, said motor includes a treating mechanism adapted to treat the waste before it is disposed off.
9. A system as claimed in claim 1 wherein, said control mechanism includes a logic circuit adapted to provide crushing force in accordance with predefined parameters.
10.A system as claimed in claim 1 wherein, said control mechanism includes a logic circuit adapted to provide treatment options for treating waste in accordance with predefined parameters.
11. A system as claimed in claim 1 wherein, said control mechanism includes a timer for operating water feed waste in accordance with predefined parameters.
12.A system as claimed in claim 1 wherein, said control mechanism includes a timer for operating said motor unit in accordance with predefined parameters.
13.A system as claimed in claim 1 wherein, said control mechanism includes a controller to control solenoid valves for contolling water feed and collected waste feed.

14.A system as claimed in claim 1 wherein, said control mechanism includes a relay.
15.A system as claimed in claim 1 wherein, said control mechanism includes a microcontroller.
16.A system as claimed in claim 1 wherein, said motor unit includes a plurality of leaves to restrict entry of waste above dimensions in relation to the space between said leaves.
17.A system as claimed in claim 1 wherein, said control mechanism is a PCB control mechanism.
18. A system as claimed in claim 1 wherein, said motor unit includes an operable top lid adapted to open to receive waste from said waste collector and adapted to close during operation of said motor unit.
19.A system as claimed in claim 1 wherein, said motor unit includes an operable bottom lid adapted to close to receive waste from said waste collector and adapted to open after operation of said motor unit.
20. A system as claimed in claim 1 wherein, said motor unit is connected to a disposal pipe adapted to provide passage for disposal of processed waste.