Claims:1. An evaporative air cooler comprising of:
a housing having a water storage chamber;
an evaporative cooling media;
a pump to circulate water from said water storage chamber to the said evaporative cooling media;
cooling pads;
means to blow out air from within the said housing;
characterized in that said evaporative air cooler is with removable water storage tank.

2. An evaporative air cooler as claimed in claim 1, wherein the said housing has an air outlet / air delivery from the front, or the back, or the top, or the bottom of the said evaporative air cooler.

3. An evaporative air cooler as claimed in claim 2, wherein the air delivery is optionally guided by a set of horizontal guides and vertical guides, often termed as louvers and with such louvers being optionally motorized.

4. An evaporative air cooler as claimed in claim 1, wherein said cooling pads are attached to at least one or more of the side panels, and/or back panel, and/or front panel.

5. An evaporative air cooler as claimed in claim 1, wherein detachable water storage tank is located below said cooling pads.

6. An evaporative air cooler as claimed in claim 1, wherein detachable water storage tank is easily removed and reattached to the said housing of evaporative cooler.

7. An evaporative air cooler as claimed in claim 1, wherein the said detachable water storage tank collects all water dripping out from the cooling pads.

8. An evaporative air cooler as claimed in claim 1, wherein the said detachable water storage tank has some locking arrangement with the said evaporative air cooler housing.
, Description:FIELD OF THE INVENTION:
The present invention relates to an air cooling apparatus. Particularly to an evaporative air cooler with a movable water tank. More particularly to detachable water tank which can be easily removed, cleaned and reattached.

BACKGROUND OF THE INVENTION:
The principles of evaporative air-cooling have been exploited for several decades by man in several countries of the world to obtain relief from uncomfortable hot weather. Air coolers are more effective in dry, hot tropical locations. For effective working of an evaporative air cooler, water plays an important role. The quality of water used in an air cooler may not be always good of due to which after a period of use, the water tank is required to be cleaned to ensure cleanliness and prevent scale formation.

Present day air coolers typically comprise of a body, a water tank, fibre pads (of different possible materials), air moving device (axial or centrifugal or cross flow fans) and water circulation system. A motorized air moving device mounted within the body of the air cooler - with fibre pads on at least one of the sides of the air cooler - blows the cool air from the air outlet (usually at front or top of the air cooler). The loosely woven fibres of the fibre pads are made of hay or cellulose. In case when fibre pads are made of hay, hay wool is filled in the cotton net of the fibre pad and in the case when fibre pads are made of cellulose, the fibre pad consist of paper and special adhesive with multiple layer of corrugated paper arranged in honeycomb manner. The fibres of the pads are kept wetted using a water distribution system. The water tank of an air cooler is fixed to the housing of the air cooler and often it is cumbersome to fill water in the tank, and, also cumbersome and difficult to clean the tank completely.

PROBLEMS ASSOCIATED WITH THE PRIOR ART:
During the running of the air cooler, dust from air is washed into the water. Usually, dust and salts in water settle at the surface of the water tank which results in scaling. Therefore, the tank needs to be cleaned properly to ensure consistent air quality delivered by air cooler. Often, such cleaning is done by draining the water, but limited access to the tank bottom surface prevents proper cleaning.

While filling water into the air cooler, continuous monitoring of water level is required in the absence of which water would either not be filled optimally or would overflow resulting in spilling with wet and dirty floor. The overflow of the water from the tank can also, at times, effect the smooth functioning of internal parts, mainly electrical parts, of the air cooler.

Another issue with the water filling in the air cooler is the rate of water filling. Water in an air cooler is often filled with the help of external pipe or with water filled vessel. With help of pipe, water is filed slowly which takes time, further if the tank is filed with the help of vessel which in itself is tedious and cumbersome.

Therefore, it would be advantageous to develop an air cooler that can be easily filled with water. In addition, it would be advantageous to develop such an air cooler in which the water tank can be easily cleaned. In addition, it would be advantageous to develop an air cooler in which the water tank can be easily removed, refilled and reattached to the air cooler, without any special tool.

OBJECT OF THE INVENTION:
The object of the present invention is an air cooler with a removable water tank. further object of the invention is to ensure that the removing / detaching the water tank (the tank serving as water reservoir) from the cooler is smooth such that the task does not need special tools for such removal of the water tank.

Another object of the present invention is to provide an arrangement where such removable water tank can be easily removed from the air cooler, carried to a water source for filling and then placed back into the air cooler.

SUMMARY OF THE INVENTION:
The following presents a simplified summary of the disclosure in order to provide a basic understanding to the reader. This summary is not an extensive overview of the disclosure and it does not identify key/critical elements of the invention or delineate the scope of the invention. Its sole purpose is to present some concepts disclosed herein in a simplified form as a prelude to the more detailed description that is presented later.
A more complete appreciation of the present invention and the scope thereof can be obtained from the accompanying drawings which are briefly summarized below and the following detailed description of the presently preferred embodiments.

The embodiment of the present invention contemplates an evaporative air cooler having a housing (body) including top panel, side panels, back panel, front panel, bottom panel, water tank, a cooler pad assembly adjacent to at least one of the side panels, and a fan (axial or centrifugal or cross-flow) which in use draws air through said cooler pad assembly, and a motor to operate said fan (axial or centrifugal or cross-flow). The improvements include removable water tank. The water tank assembly and pump assembly, wherein the tank is located below the front panel/back panel, and such tank having guide design means arranged to communicate with inner surface of said back panel/front panel.
Yet another embodiment of the present invention contemplates an evaporative air cooler having detachable water tank which can be easily removed from the cooler without any special tool.

Yet another embodiment of the present invention contemplates detachable water tank which can be easily cleaned and refilled and can be readily produced and accurately located in the air cooler body.
The air cooler described herein below is designed to be used for the convenient cooling of any room or similarly enclosed or open space such as house, office, shop, warehouse, manufacturing location, process industry, assembly hall, restaurant etc. This is achieved by providing a specially designed removable tank system, which can be readily produced and accurately located in the air cooler body. In addition, this simplifies the assembly procedure and assembly costs, which also reduces the selling price for the customer.

BRIEF DESCRIPTION OF THE DRAWINGS:
Other objects and advantages of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein:

FIG. 1 is a perspective view of an evaporative air cooler in its assembled form in accordance with an exemplary embodiment of the present disclosure;

FIG. 2 is an exploded view of the cooler illustrating the main component parts thereof in accordance with an exemplary embodiment of the present disclosure;

FIG. 3 is a bottom view of the tank of cooler in accordance with an exemplary embodiment of the present disclosure;

DETAILED DESCRIPTION:
It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The present disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
The use of “including”, “comprising” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Further, the use of terms “first”, “second”, and “third”, and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
In order to more clearly and fully describe the invention, an embodiment is described in detail here below with reference to the drawings in which: Figure 1 is a perspective view of the air cooler in its assembled form; Figure 2 is an exploded view of the cooler illustrating the main component parts thereof; Figure 3 shows the bottom view of the tank.
In the preferred embodiment, referring to FIG. 1 and FIG. 2 evaporative air cooler (10) comprises an evaporative cooler body (11) which itself comprises of front panel (12), back panel (13), base tank (17), a tank assembly (14) comprising a tank(17), optional tank lock (15), optional wheels/Castors (16) which are arranged to provide removable tank movement, outer grill (18), are assembled in the cooler body in known manner. It will be realised that not all parts of the air cooler unit have been shown.

In accordance with this invention, a provision is made for a water tank (17) preferably constructed from injection moulded plastic material, located beneath of front panel (12) or back panel (13). In another embodiment, referring to FIG. 2 and FIG. 3 the water tank (17) comprises a shallow tank portion (19) is covered by outer covering (20) and a scoop (21) located in centre of tank (17). The bottom surface (22) of the tank (17) is always closed.

The water tank (17) is readily fitted in position by engaging optional tank lock (15), which is fixed on the backside of back panel (13). In addition, both side of tank (17) is formed with radial surface (23). This enables the tank (17) to be accurately located. The location for tank (17) can be suitably made in different possible manner too, and thereby it can be fitted to any of the panels of the housing or any of the inner structural parts of the air cooler.

The invention allow removing / detaching the tank from the air cooler very easily by manual operation and without a need for any special tool, such tank can be easily removed from the air cooler

Advantages of the current invention:
1) Removable tank in the context of this innovation means a method of removing / detaching the tank from the air cooler very easily by manual operation and without a need for any special tool, such tank can be easily removed from the air cooler. Such tank can then be taken to water source for filling and then attached back to the air cooler.
2) This eliminates a need for lifting heavy water containers to fill the water in the tank that is fitted / mounted in the air cooler.
3) The water filling in air cooler of prior art has to be done slowly because normally the opening for water filling are small. However, when the tank is removed, the entire top surface of the tank is then open and this makes the task of water filling very fast and easy.
4) At times, during filling of water from relatively small opening of the air cooler for water inlet, often the water spills out on the floor. This makes the floor wet and dirty. This problem is eliminated in the case of removable tank.
5) Since tank can be removed, it can be easily washed and cleaned to remove salt and dust deposits, prior to refilling. This helps improved routine cleaning of water and results into better quality of air delivered from the air cooler.
6) Once the tank is removed, rest of the internal parts of the air cooler also can be easily accessed. This helps in easier servicing / maintenance of the air cooler when so needed

In addition to the above mentioned embodiments, it is to be understood that various modifications and alterations with regard to the types of the materials used, their method of joining together, and the attachments, and, the shape of the air cooler, the structure of the air cooler, the shapes / dimensions / orientations of the components as describes, the absence of certain optional components as described, and/or function may be made to the disclosed embodiments by one skilled in the art without departing from the invention as defined by the claims.

Accordingly, the above disclosure is not to be considered as limiting and the appended claims are to be interpreted as encompassing the entire spirit and scope of the invention.