FORM-2
THE PATENT ACT,1970
(39 OF 1970)
AND
THE PATENT RULES, 2003
(As Amended)
COMPLETE SPECIFICATION (See section 10;rule 13)
"MOBILE WATER PURIFICATION SYSTEM"
Piaggio Vehicles Pvt. Ltd., a corporation organized and existing under the laws of India, of E2, MIDC Area, Baramati, Pune - 413133, India.
The following specification particularly describes the invention and the manner in which it is to be performed:

MOBILE WATER PURIFICATION SYSTEM
TECHNICAL FIELD
The subject matter described herein generally relates to a mobile water purification system and particularly relates to a water purification system mounted on a three-wheeled vehicle having a PTO shaft.
BACKGROUND
Water is an essential requirement for all living beings on earth for survival. Recently, the awareness relating to safe drinking water and the ill effects on account of poor quality of drinking water is increasing among human beings. In view of the same, several water filters have been developed which can be useful to households, industries, public places etc. However, one of the foremost question still remains is the availability of such water filters to the households in villages, especially ones which are not well connected with towns or cities.
In developing countries, such as India, household ladies still go to the nearby water sources, such as open wells, lakes, rivers, ponds etc. for washing clothes, utensils and at the end of such an exhaustive exercise, they are expected to carry drinking water for household consumption. This is almost a daily routine in most of the villages. In spite of several projects being implemented for laying the pipelines across the villages, making safe drinking water available still remains an issue of concern. When provided with water filtration system at a central point in villages for community purpose, the villagers who are extremely busy in the morning hours do not have additional time to go to such water booths to obtain safe drinking water.

Due to such and many other difficulties, safe drinking water is scarcely available to the public at large in spite of many efforts being made by the governments and nongovernment organizations in this respect. This problem may appear to be a simple one but is undeniably of chronic in nature.
Therefore, there is a need for a cost effective yet fool-proof solution of first making safe drinking water available and supplying it to each household, especially in regions where the general public cannot afford to purchase a personal water purifier for their homes, in view of the fact that diseases due to unsafe drinking water can be fatal.
SUMMARY
Accordingly, the subject matter described herein relates to a mobile water purification system comprising a three-wheeled vehicle including a driver cabin and a carrier segment, and a water purification system provided on the carrier segment. The water purification system includes a water pump for transferring impure water from ground sources to a plurality of filters for filtration process. The water pump of the water purification system is operatively connected to the engine of the three-wheeled vehicle via an engagement device.
In one embodiment of the present subject matter, the water pump is connected to the engine by a drive mechanism.
In another embodiment of the present subject matter, the drive mechanism comprises a chain and sprocket mechanism,
In another embodiment of the present subject matter, the drive mechanism comprises a belt and pulley arrangement.

In another embodiment of the present subject matter, the engagement device comprises an electromagnetic clutch.
In another embodiment of the present subject matter, the engagement device comprises an electromagnetic shaft mounting assembly and an electromagnetic friction plate.
In another embodiment of the present subject matter, the engagement device is mounted on the engine housing with the help of a plurality of brackets.
In another embodiment of the present subject matter, the engagement device is connected to the engine housing through the flywheel.
In another embodiment of the present subject matter, the water purification system comprises a UF-Membrane based five-stage water filtration system.
In another embodiment of the present subject matter, a water tank with a water outlet is provided downstream of the plurality of filters for storing purified water.
In yet another embodiment of the present subject matter, a pair of anti-vibration mountings (AVM) is provided at the interface of the support channel for electromagnetic clutch and the respective support brackets to dampen the vibrations that may arise during operation.
BRIEF DESCRIPTION OF DRAWINGS
These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference

to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
Figure 1 illustrates a top view of a mobile water purification system comprising a three wheeled vehicle and a water purification system in accordance with one embodiment of the present subject matter.
Figure 2 illustrates a side view of the mobile water purification system of Figure 1.
Figures 3 & 4 illustrate schematic representations of alternate drive mechanisms of a water pump of the water purification system by the engine of the three wheeled vehicle.
Figure 5 illustrates a front view of the mounting arrangement of an electromagnetic clutch on the engine housing of the three-wheeled vehicle for engagement and disengagement of the water purification system from the engine.
Figure 6 illustrates an exploded view of the mounting arrangement of the electromagnetic clutch of Figure 5.
Figure 7 illustrates a sectional view of the arrangement depicted in Figure 5 across section A-A.
DETAILED DESCRIPTION
Figures 1 & 2 illustrate a top view and a side view respectively of a mobile water purification system 10. The mobile water purification system 10 of the present subject matter comprises a three-wheeled vehicle 100 and a water purification system 102 in accordance with one embodiment of the present subject matter. The three-wheeled

vehicle 100 of the present subject matter can transport safe drinking water to the interior of the rural area by collecting water from known ground sources.
For example, and by no way limiting the scope of the subject matter, the three-wheeled vehicle 100 and the water purification system 102 of the present subject matter include a plurality of components arranged in series and working in combination. The components of the three-wheeled vehicle 100 include, but are not limited to a driver cabin 104 and a carrier segment 106 which carries a platform 108 for accommodating the water purification system 102. In one embodiment of the present subject matter, the three-wheeled vehicle 100 is a pick up van wherein the engine 110 is placed at the rear end of the vehicle 100 as shown in Figure 2. In one embodiment of the present subject matter, the engine 110 is a diesel engine.
For instance, but in no way limiting the scope of the present subject matter, the water purification system 102 includes a water pump 112 for pumping impure water from a water source, such as ponds, lakes etc., a plurality of filters 114 for water filtration, a water tank 116 for storing pure water after filtration, and a water outlet 118 for supply of pure water from the water tank 116 to the user. As can be seen from Figure 2, the water pump 112 is connected to the engine 110 of the three-wheeled vehicle 100 via a drive mechanism 120 and is driven by the engine 110. In one embodiment of the present subject matter, the water pump 112 is a centrifugal pump which is directly coupled to the PTO shaft of the three-wheeled vehicle 100.
In one embodiment of the present subject matter, the water purification system 102 is a UF-Membrane based five-stage filtration system. The UF-Membranes are connected by CPVC food grade tubing to remove the microbiological contamination in

water. The water pump 112 transports impure water from known ground sources, such as lakes, rivers etc. to various filters 114 of the water purification system 102. Upon entering the water purification system 102, water is made to pass through various filters for filtration process. The water purification system 102 further comprises a micro-filter multipurpose pre filter in a big housingv After purification process is over, water is stored in the water tank 116. In one embodiment, the water tank 116 is made up of AISI 304, stainless steel having capacity of about 500 liters with sanitary finish outlet valve 25mm ball valve tank mounted on the steel frame and anti vibrating mounting to store pure and safe drinking water.
The three-wheeled vehicle 100 and the water purification system 102 of the present subject matter can have additional components from those depicted above as would be obvious to a person skilled in the art.
Figure 3 illustrates a schematic representation of a drive mechanism 120 for driving the water pump 112 of the water purification system 102 by the engine 110. As shown in Figure 3, an engagement device, such as an electromagnetic clutch 300 is connected to the flywheel 302 of the engine 110 by fastening means 304, such as studs, on one side. The other side of the electromagnetic clutch 300 is connected to the drive mechanism 120. In one embodiment of the present subject matter, the drive mechanism 120 is a chain and sprocket mechanism, which includes a driving sprocket 306, a driven sprocket 308 and a chain drive 310. As can be seen in Figure 3, the driving sprocket 306 is connected to the electromagnetic clutch 300 and the driven sprocket 308 is connected to the water pump 112 of the water purification system 102. In one embodiment of the present subject matter, the driving sprocket 306 and the driven sprocket 308 include 15

teeth each. During operation, the electromagnetic clutch is engaged and the power from the engine 110 is transmitted to the water pump 112 through the chain and sprocket mechanism. A chassis long member 312 is also shown in Figure 3 for illustration.
In another embodiment of the present subject matter, the drive mechanism 120 includes a belt and pulley arrangement as shown in Figure 4, where the electromagnetic clutch 300 is connected to a drive pulley 306', which in turn is connected to a driven pulley 308' through a belt drive 310'.
The embodiments of the drive mechanism 120 described above are exemplary embodiments and in no way limit the scope of the present subject matter.
Figures 5 & 6 illustrate a front view and an exploded view respectively of the mounting arrangement of the electromagnetic clutch 300 on the engine housing 500 of the three-wheeled vehicle 100 in one embodiment of the present subject matter. Figure 7 illustrates a sectional view of the mounting arrangement depicted in Figure 5 across section A-A. As shown in Figure 5, the electromagnetic clutch 300 is supported on the engine casing 500 by an electromagnetic clutch supporting bracket 502, a pair of electromagnetic support fronts 504, and an electromagnetic support channel 506. A plurality of washers and nuts, as shown in Figure 6, are provided to ensure reliable mounting of the electromagnetic clutch 300. As can be seen from Figures 6 & 7, an electromagnetic mounting shaft assembly 508, an electromagnetic friction plate 510 and the electromagnetic clutch 300 are coaxial. A pair of anti-vibration mountings (AVM) 512 for the electromagnetic clutch 300 is also provided to dampen the vibrations that may arise during operation. Each anti-vibration mounting 512 is provided at the interface of

the electromagnetic clutch support channel 506 & 504 and the respective electromagnetic support front 502 as is shown in Figures 5 & 6.
As can be seen from above, the present subject matter employs the same prime mover i.e. the engine 110 of the three-wheeled vehicle 100 to drive the water pump 112 as and when required for water purification. Once the electromagnetic clutch is engaged, drive is given to driven sprocket or pulley, as the case may be, which is connected to the water pump 112. The drive is taken from the engine 110 by providing an extension to output shaft of the engine 110. The electromagnetic clutch mounting shaft assembly 508 is bolted on the pulley of flywheel side of engine 110. The drive mechanism is supported by rubber dampers / mounts, duly mounted on the sheet metal brackets, as shown in Figure 6 above. This gives smooth and vibration free running of the system. For safety purpose, the water purification system 102 is operated only when the three-wheeled vehicle 100 is stationary and is in a neutral gear position. A buzzer with indication light is provided in the driver cabin 104 as a signal for water pump operation and caution for the driver not to run the vehicle.
Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention'. It is therefore contemplated that such modifications can be made without departing from the spirit or scope of the present invention as defined.

We Claim:
1. A mobile water purification system 100 comprising:
a three-wheeled vehicle 100 comprising a driver cabin 104 and a carrier
segment 106; and
a water purification system 102 provided on the carrier segment 106, the
water purification system 102 comprising a water pump 112 for
transferring impure water from ground sources to a plurality of filters 114
for filtration process;
the water pump 112 being operatively connected to the engine 110 of the
three-wheeled vehicle 100 via an engagement device 300.
2. The mobile water purification system 100 as claimed in claim 1, wherein the water pump 112 is connected to the engine 110 by a drive mechanism 120.
3. The mobile water purification system 100 as claimed in claim 2, wherein the drive mechanism 120 comprises a chain and sprocket mechanism.
4. The mobile water purification system 100 as claimed in claim 2, wherein the drive mechanism 120 comprises a belt and pulley arrangement.
5. The mobile water purification system 100 as claimed in claim 1, wherein the engagement device comprises an electromagnetic clutch 300.
6. The mobile water purification system 100 as claimed in claim 1, wherein the engagement device 300 comprises an electromagnetic shaft mounting assembly 508 and an electromagnetic friction plate 510.

7. The mobile water purification system 100 as claimed in claim 1, wherein the engagement device 300 is mounted on the engine housing 500 with the help of a plurality of brackets 504, 506.
8. The mobile water purification system 100 as claimed in claim 1, wherein the engagement device 300 is connected to the engine housing 500 through the flywheel 302.
9. The mobile water purification system 100 as claimed in claim 1, wherein the water purification system 102 comprises a UF-Membrane based five-stage water filtration system.
10. The mobile water purification system 100 as claimed in claim 1, wherein the plurality of filters comprises a micro-filter multipurpose pre filter in a big housing.
11. The mobile water purification system 100 as claimed in claim 1, wherein a water tank 116 with a water outlet 118 is provided downstream of the plurality of filters 114 for storing purified water.
12. The mobile water purification system 100 as claimed in claim 1, wherein a pair of anti-vibration mountings (AVM) 512 for the electromagnetic clutch 300 is provided to dampen the vibrations that may arise during operation. Each anti-vibration mounting 512 is provided at the interface of the electromagnetic clutch support channel 506 & 504 and the respective electromagnetic support front 502.