Claims:Claims:

1. An Evaporative Air Cooler comprising of an outer frame with recess at the bottom to hold water, side walls which could be removable and attached to the outer frame, cooling media which could be removable and attached to the side walls, a pump to lift water towards the upper levels of the cooler from where it can be distributed on the cooling media through distribution tubing and distribution channels on the cooling media pads, a fan to draw air from the atmosphere through the side walls and discharge from another side wall, control panel with switches and pull-out handle comprising of a handle bracket, handle rods and a grip member;
2. An evaporative air cooler of claim 1, with Pull Out Handle in addition to fix type handle on body;
3. An evaporative air cooler of claim 1 where the pull out handle is mounted on the top wall or side wall or back wall or front wall of the air cooler;
4. A pull-out handle of claim 1 comprising of a handle bracket, handle rods, grip member;
5. The handle of claim 1,2,3, when push inside by normal hand force, it will go back in to the Air cooler body, and cooler can be use as normal Air cooler
6. The pull-out handle of claims 1, 2 and 3 which are made of plastics or steel;
7. The pull-out handle of claim 6 which has the handle and allow its sliding from one position to another.
8. The pull-out handle of claim 6 which is hand-slid from one position to another position with or without any lock or push button release mechanism.
9. An evaporative air cooler of claim 1 where the pull-out handle is mounted on the top wall of the air cooler;
10. An evaporative Air cooler of claim 1 with a pull-out handle comprising of a handle bracket, handle rods, grip member and screws wherein the handle rods are released from the handle bracket when the grip member is pulled by force and the handle rods slide into the bracket when contact is removed from the grip member. , Description:TECHNICAL FIELD:
The present invention relates to an evaporative air cooler which can be used at various places and location and could be easily shifted within the premises. The present invention more particularly relates to an evaporative air cooler which provides ease of movement of the cooler from one location to another location by the use of a specially invented pull-out handle. The present invention enables the movement or shifting of Air cooler very user friendly.

BACKGROUND AND PRIOR ART:
An evaporative air cooler is a device that cools the air in the space to be cooled by the process of the evaporation of water in air and are popularly known as Evaporative Air Coolers. Existing evaporative air cooling devices have a small water reservoir typically at the bottom of the device. A pump pulls water from the reservoir and pumps it through tubing to the top and / or side of the unit, where it gets distributed through appropriate arrangement and flows down the sides and through one or more porous pads (cooling media) that line the sides (and / or back) of the unit. An electric motor powers a fan (centrifugal / axial / cross flow or any other type of fan) typically near to the air discharges side of the device, and, is responsible to suck air from the cooling media and blow to the space being cooled. As the air is sucked through the water soaked pads (cooling media), the water gets evaporated in the stream which reduces the temperature of the air and the cooled air is then blown out from the air cooler to provide cooling to the space being cooled. This evaporation is caused by a transfer of heat from the air to the water. This results in a net loss of heat in the air or, in other words, cooling of the air. Also all Evaporative Air coolers consist of water reservoir inside the body or within the Air cooler. And during the process the water is getting evaporated and tank gets empty – and, after certain hours it needs to be filled again to continue the cooling. To fill the water, sometimes the air cooler need to be moved from one location to another location. Further, a person may want to use the cooler at different locations. During the movement, especially when air cooler is filled with water, it is difficult to move it without griping locations or handles. Mostly air coolers does not have any facility to move it from one place to another place, and so usually the users move it by pushing the body of air cooler, that is very inconvenient method of movement of the cooler and cooler may topple or fall down. Sometime Air coolers are fitted with handles on sides of the cooler body and users grip it by two hands to move the coolers, which is very difficult to move as the cooler has to be lifted. Some Air Coolers models have fixed handle on back side and by pushing the handle, cooler may get toppled, or, else user has to move it very slowly and carefully. This is not a convenient way to move or shift the Air cooler. Hence, the air coolers of prior art cannot provide convenient movement or shifting within the same premises. It is therefore an objective of the present invention to provide convenient movement for an evaporative air cooler which is very user friendly.

It is therefore an objective of the present invention to provide for evaporative air cooler which has a specially invented pull-out handle and hence enable very comfortable movement of air cooler to users while moving the cooler for any reasons including portability from one location to another location, as well as including movement for the purpose of filling the water.

SUMMARY OF THE INVENTION:

An evaporative air cooler as per the present invention comprises of an evaporative air cooler with a specially designed handle, which can be pulled up from Air cooler body and brought to an extended position from top wall of the Air cooler such extended position being the comfortable height for manual movement of the air cooler.

The air cooler comprises of an outer frame with a reservoir at the bottom to store water. The side and / or back walls of the outer frame comprise of fixed or removable walls. The side and / or back walls comprise of an appropriately designed arrangement of channel running through the upper length such that water can flow through the channel and have suitable opening at regular intervals facing such that water can fall on the pads. An assembly of clamp on the inside of the side walls hold pads onto the wall. The pad could be constructed using any materials which can retain substantial amount of water. The side walls are removable on the outer frame through an interlocking mechanism. The side or back or top walls comprise of appropriately designed arrangement of pull out bracket, it’s mounting arrangement and additionally it houses a telescopically or otherwise sliding handle through it, which can be pulled out and pushed in as and when required to move the cooler. In a preferred embodiment the outer frame is made of metal or plastic material. The air discharge (usually front, top or bottom) portion of the Air Cooler house the control panel for operating the Air Cooler. Such a control panel can be conveniently placed or housed in any part of the cooler and is within the scope of the present invention.
The pull-out handle bracket is coupled with the Air cooler body and houses a pair of handle rods that are coupled and retractable into the pull-out handle bracket by a sliding movement relative to the Air cooler body to allow the handle to be extended between the first position and the second position. The handle rods also includes a laterally extending grip member that is coupled at the upper end of each of the extending rods and that extends there between. The first position could be where the handle grip member is adjacent the side wall or top wall of the Air cooler body to at least a second position where the handle grip member extends beyond the top wall to the upper level relative to the top wall. In some embodiments, each of the rods includes a plurality of telescoping rods which would give different positions from the Air cooler wall to the pull-out handle when the rods are in an extended position. The pull out handle is extended upward by pulling it in the upward direction. In some embodiments, the release mechanism is actuated by a push button that is positioned on a central portion of the laterally extending grip member by a spring mechanism or pressing of a button thereof with recess on the handle rods with a locking mechanism. As described herein, the handle includes a pair of rods and more preferably square or rectangle or round or elliptical section rods that are slide -coupled with the Air cooler body to allow the handle to be moved relative to the Air cooler body. According to the method, the handle is extended from a first position where the pull-out handle is near the top wall of the Air cooler body to a second position where the handle is positioned on the upper levels as compared to the level of the top wall. In other embodiments, actuating release mechanism is used to release the lock of the handle from the first position to the second position and vice versa. In another embodiment, the function of handle brackets may be achieved just by sliding of the handle rods without any lock positions and more preferably square / rectangle / round / elliptical section handle rods when the handle rods are coupled with the body of the Air cooler. All such embodiments form part of the present invention.

The present invention provides a collapsible pull-out handle coupled on the Air Cooler body which can be extended by pulling the grip member from and retracted into the wall of the Air cooler by gravitational force. The pull-out handle as per the present invention for air cooler is easy to operate by extending the handle from the air cooler body move easily from one place to another place. The pull-out handle as per the present invention for air cooler enables the air cooler to be moved by using very less effort by the user, so it is very convenient to move the cooler from one place to another place even in water filled condition. The pull-out handle as per the present invention for air cooler is very convenient to move the cooler and enables handling at body convenient levels without he need to bend.

Brief description of drawings:
The invention will now be described with reference to the accompanying drawings wherein the same numerals are used to denote the same parts across the different drawings. However, it is made clear that the description and the drawings only illustrate the invention and in no way limit the forms and shapes and size of and location of the same.

In accompanying drawings:
Figure 1 shows Air Cooler which is presently available in the market.
Figure 2 shows Air Cooler with the pull-out handle as per the present invention.
Figure 3 shows an exploded view of pull-out handle attached to the Air cooler.
Figure 4 shows an exploded view of the Air cooler with the pull-out handle.
Figure 5 shows the pull-out handle.

It will be understood that, for the purposes of clarity, certain elements maybe intentionally omitted from certain views where they are believed to be illustrated for better advantage in other views.

DETAILED DESCRIPTION OF DRAWINGS:
The following are the details of the main components of the air cooler and the invented pull-out handle in accordance with the invention, which are used with reference to figure 1 to figure 5:
For the purposes of illustrations numerous specific details are set forth in order to provide a thorough understanding of the invention. While the invention has been described in conjunction with the specific embodiments outlined herein, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the preferred embodiments of the invention as set forth above are intended to be illustrative and not limiting. Various changes may be made without departing from the spirit and scope of the invention as defined herein. However, it will be understood by those of ordinary skill in the prior art that the invention may be practiced without these specific details. In other instances, well – known methods, procedures or / or components have not been described in detail so as not to obscure the invention. Reference will now be made in detail to the preferred embodiments of the present invention, an example of which is illustrated in the accompanying drawings (but not restricted or limiting to these inventions by drawings).
Directional phrases used herein, such as, for example, left, right, top, bottom, upper, bottom, side, back, inner, outer and derivatives thereof, relate to the orientation of the elements shown in the drawings and are not limiting upon the claims unless expressly recited therein.
Figure 1 shows an Air Cooler 10 which is presently used in the market which comprise of side walls 11 through which air is drawn into the cooler and another side wall 12 through which the air is released into the enclosure. The control mechanism 13 is generally placed on the side through which air is released 12 into the enclosure but it could be placed at any other place on the cooler. The Air cooler comprises of the side walls 11, 12 and control mechanism 13 to operate the Air cooler.
Figure 2 shows an Air cooler 10 with the pull-out handle 21 as per the present invention. The pull-out handle 21 as per the present invention is coupled on the top wall 22 of the Air cooler and placed adjacent 30 to the Air cooler 10. In another embodiment the pull-out handle 21 could be coupled with the side wall 11, 12 or the top wall 22 or any other part of the Air cooler body 10 and forms an integral part of the present invention.
Figure 3 an Air cooler 10 with the pull-out handle 21 as per the present invention. The pull-out handle 21 as per the present invention is coupled on the top wall 22 of the Air cooler 10 and is in an extended position 40 relative to the top wall 22 of the Air cooler 10. In another embodiment the pull-out handle 21 could be coupled with the side wall 11 or the top wall 22 or any other part of the Air cooler body 10 and forms an integral part of the present invention.
Figure 4 and 5 shows an exploded view of Air cooler 10 with the pull-out handle 21 as per the present invention. The pair of handle rods 23 extend from the handle brackets 24 which is coupled with the Air cooler body 10 fixed by screws 25. The screws 25 can be replaced by rivets or other suitable connecting methods including but not limited to metal or plastic welding, or, there is also possibility that handle rods 23 and the screws 25 are integrated in to one part and coupled with the Air cooler body 10 or be part of the Air cooler body 10. A grip member 26 extends between the two parallel handle rods 23 which when pulled enables the handle rods 23 to be extended from the first position 30 to the second position 40. On removing contact with the grip member 26, the handle rods 23 slide in the brackets 24 by gravitational force. The handle rods 23 can be telescopic too, so as to allow longer opening dimensions and more than two positions 30, 40.
There are substantial advantages of the Air cooler with the pull – out handle which include that Users can conveniently move the Air Cooler comfortably by pull-out handle. When a handle is an extended position to the top side of the Air cooler, a person does not need to bend down too much for shifting the cooler from one place to another. The Air cooler with pull-out handle can be shifted with very little effort, which could be even be a single hand operation.

Claims:

1. An Evaporative Air Cooler comprising of an outer frame with recess at the bottom to hold water, side walls which could be removable and attached to the outer frame, cooling media which could be removable and attached to the side walls, a pump to lift water towards the upper levels of the cooler from where it can be distributed on the cooling media through distribution tubing and distribution channels on the cooling media pads, a fan to draw air from the atmosphere through the side walls and discharge from another side wall, control panel with switches and pull-out handle comprising of a handle bracket, handle rods and a grip member;
2. An evaporative air cooler of claim 1, with Pull Out Handle in addition to fix type handle on body;
3. An evaporative air cooler of claim 1 where the pull out handle is mounted on the top wall or side wall or back wall or front wall of the air cooler;
4. A pull-out handle of claim 1 comprising of a handle bracket, handle rods, grip member;
5. The handle of claim 1,2,3, when push inside by normal hand force, it will go back in to the Air cooler body, and cooler can be use as normal Air cooler
6. The pull-out handle of claims 1, 2 and 3 which are made of plastics or steel;
7. The pull-out handle of claim 6 which has the handle and allow its sliding from one position to another.
8. The pull-out handle of claim 6 which is hand-slid from one position to another position with or without any lock or push button release mechanism.
9. An evaporative air cooler of claim 1 where the pull-out handle is mounted on the top wall of the air cooler;
10. An evaporative Air cooler of claim 1 with a pull-out handle comprising of a handle bracket, handle rods, grip member and screws wherein the handle rods are released from the handle bracket when the grip member is pulled by force and the handle rods slide into the bracket when contact is removed from the grip member.

ABSTRACT

An evaporative air cooler which comprises of an evaporative air cooler with a specially designed collapsible handle, which can be pulled up from Air cooler body and brought to an extended position from top wall of the Air cooler such extended position being the comfortable height for manual movement of the air cooler. The handle is extended from a first position where the pull-out handle is near the top wall of the Air cooler body to a second position where the handle is positioned on the upper levels as compared to the level of the top wall. The pull-out handle bracket is coupled with the Air cooler body and houses a pair of handle rods that are coupled and retractable into the pull-out handle bracket by a sliding movement relative to the Air cooler body to allow the handle to be extended between the first position and the second position.