Patent Description:
Air coolers are used to provide a cooling current of air to a user to combat heat and/or dehydration. Such air coolers may work alone, or may be in combination with a liquid sprayer which further supplies a mist of fluid (e.g. water) to the user for an enhanced cooling experience. To generate the mist of fluid, the liquid sprayer normally uses an atomizer or a pump means for pumping liquid to a misting nozzle. One of the drawbacks of using such an atomizer or pump means is that it complicates the structural design of the air cooler. This not only increases the manufacturing cost of the air cooler, but also causes inconvenience for a user to use the air cooler due to its added weight. Therefore, there is a need for an air cooler that can generate mist in a more gentle and cost-effective way.

Related technologies are disclosed in <CIT>, <CIT> and <CIT>, the latter document showing the features of the preamble of claim <NUM>.

The invention is best understood from the following detailed description when read in conjunction with the accompanying drawings.

Embodiments of the present invention are described herein. It is to be understood, however, that the disclosed embodiments are merely examples and other embodiments can take various and alternative forms as long as comprised within the scope of the claims.

The figures are not necessarily to scale; some features could be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the embodiments. As those of ordinary skill in the art will understand, various features illustrated and described with reference to any one of the figures can be combined with features illustrated in one or more other figures to produce embodiments that are not explicitly illustrated or described. The combinations of features illustrated provide representative embodiments for typical applications. Various combinations and modifications of the features consistent with the scope of this invention, however, could be desired for particular applications or implementations.

Aspects of the present invention relate to air coolers and more specifically, a personal air cooler. <FIG> depicts a perspective front view of an air cooler according to one or more embodiments of the present invention. <FIG> depicts a front view of the air cooler of <FIG>. The air cooler <NUM> may be a personal air cooler, which may be carried by a user in a user's pocket, a user's hand, or the like. Referring to <FIG> and <FIG>, the air cooler <NUM> includes a body <NUM> having a top portion <NUM>, a bottom portion <NUM>, and a middle portion <NUM> situated between the top and bottom portions <NUM> and <NUM>. The body <NUM> may include a front face <NUM>, a rear face <NUM> opposing to the front face <NUM>, a left face <NUM>, and a right face <NUM> opposing to the left face <NUM>. The body <NUM> may be generally rectangular in shape or any other desired shapes. The body <NUM> may include rounded edges <NUM> at corner portions thereof.

The air cooler <NUM> includes a fan <NUM> disposed within the body <NUM> thereof. The fan <NUM> is disposed in the top portion <NUM> of the body <NUM>. The fan <NUM> includes a fan hub <NUM> and a plurality of fan blades <NUM> (see <FIG>) centrally attached to the fan hub <NUM>. The plurality of fan blades <NUM> may be generally straight or curved in shape or any other desired shapes. The plurality of fan blades <NUM> may rotate around the fan hub <NUM> when the air cooler <NUM> is in operation.

The air cooler <NUM> may further include a fan shroud <NUM> circumferentially surrounding the fan <NUM> (i.e. the fan hub <NUM> and the plurality of fan blades <NUM> of the fan <NUM>). The fan shroud <NUM> may be a plastic ring circumferentially surrounding the fan <NUM> so as to funnel an air flow from the fan <NUM> when the air cooler <NUM> is in operation. The fan shroud <NUM> may include a front edge <NUM> and a rear edge <NUM> (see <FIG>). The front edge <NUM> may connect to a fan grill of the fan <NUM>.

The air cooler <NUM> may include a motor electronically coupled to the fan <NUM> and configured to control the operation of the fan <NUM>. For example, the motor may control the fan <NUM> to operate at different fan speeds. In some embodiments, the motor may be positioned within the fan hub <NUM>. In some other embodiments, the motor may be positioned in the middle <NUM> or bottom portion <NUM> of the air cooler <NUM>.

The air cooler <NUM> may further include a first fan grill <NUM> (or a first fan guard) covering the fan <NUM> and the fan shroud <NUM> from the front face <NUM> of the body <NUM> thereof. The first fan grill <NUM> may include a plurality of bars <NUM> extending generally from the fan hub <NUM> to edges <NUM> thereof, where two adjacent bars define a space there between. The first fan grill <NUM> may be configured to allow air and mist to flow through the space. The first fan grill <NUM> may connect to the front edge <NUM> of the fan shroud <NUM>.

The air cooler <NUM> may also include a second fan grill <NUM> (or a second fan guard) covering the fan <NUM> and the fan shroud <NUM> from the rear face <NUM> of the body <NUM> thereof. The air cooler <NUM> may further include a frame <NUM> removably attached to the front face <NUM> of the body <NUM> thereof and configured to secure the first fan grill <NUM> to the body <NUM> thereof. In some embodiments, the frame <NUM> may be pressed onto the body <NUM>.

The air cooler <NUM> may include an opening <NUM> defined in the body <NUM> thereof. In some embodiments, the opening <NUM> may be defined in the middle portion <NUM> of the body <NUM>. The opening <NUM> may receive a tank <NUM> (see <FIG> or <FIG>) therein. The tank <NUM> may be configured to store a liquid (e.g. water) therein.

The air cooler <NUM> may further include a first cover <NUM> (e.g. a front cover) covering the opening <NUM> from the front face <NUM> of the body <NUM> thereof. The first cover <NUM> may be made from a translucent or clear material, such as a translucent or clear plastic or any other desired materials. Using the translucent or clear material for the first cover <NUM> may facilitate the user to determine the amount of liquid in the tank <NUM> received in the opening <NUM>, and further to decide when the tank <NUM> needs to be refilled. A gasket (not shown) may be circumferentially attached around the first cover <NUM> or around the opening <NUM> to keep the opening <NUM> sealed (i.e. watertight) when the first cover <NUM> covers the opening <NUM>. The first cover <NUM> may not be removed.

Referring to <FIG> and <FIG>, the air cooler <NUM> includes a first mister <NUM> disposed at a first location within the body <NUM> thereof. The air cooler <NUM> further includes a second mister <NUM> disposed at a second location within the body <NUM> thereof, and the second location is different from the first location. The first and second locations may be symmetrical within the body <NUM> of the air cooler <NUM>, or in any other desired configurations. According to the invention, the first and second locations are in front of the plurality of fan blades <NUM> in the top portion <NUM> of the body <NUM>. According to the invention, the first and second locations may be at bottom portions (e.g. a first bottom portion and a second bottom portion) of the fan shroud <NUM> and in front of the plurality of fan blades <NUM> in the top portion <NUM> of the body <NUM>. Each of the first and second misters <NUM> and <NUM> dispense (or spray) mist into an air flow from the fan <NUM> when the air cooler <NUM> is in operation. As such, the air flow from the fan <NUM> is mixed with the mist dispensed from the first and second misters <NUM> and <NUM> so as to provide an additional cooling effect to the user. Although <FIG> and <FIG> depict that the air cooler <NUM> includes two misters disposed within the body <NUM>, it is contemplated that more than two misters may be disposed within the body <NUM> to dispense mist to the user when the air cooler <NUM> is in operation.

The first mister <NUM> is positioned at a first angle directing to the fan <NUM>. The second mister <NUM> is positioned at a second angle directing to the fan <NUM>. The first and second angles may be the same or different. The angled first and second misters <NUM> and <NUM> allow the mist dispensed therefrom to be sufficiently mixed with the air flow from the fan <NUM> when the air cooler <NUM> is in operation.

In order for the first and second misters <NUM> and <NUM> to dispense mist, the air cooler <NUM> may include a first wicking cylinder <NUM> (see <FIG> or <FIG>) at least partially coupled to the first mister <NUM> and configured to supply liquid to the first mister <NUM> for dispensing the mist. The air cooler <NUM> may further include a second wicking cylinder <NUM> (also see <FIG> or <FIG>) at least partially coupled to the second mister <NUM> and configured to supply liquid to the second mister <NUM> for dispensing the mist. The first wicking cylinder <NUM> may include a top end portion, a bottom end portion, and a middle portion extending between the top and bottom end portions thereof. The bottom end portion of the first wicking cylinder <NUM> may be positioned within the tank <NUM> received in the opening <NUM> defined in the body <NUM>. The first wicking cylinder <NUM> may be configured to absorb liquid in the tank <NUM>, if there is any, at the bottom end portion thereof and to draw up the liquid to the top end portion thereof. The middle portion of the first wicking cylinder <NUM> may be at least partially positioned within the tank <NUM>. The top end portion of the first wicking cylinder <NUM> may be positioned outside the tank <NUM> and attached to the first mister <NUM>. As such, when the tank <NUM> is filled with liquid (e.g. water), the first wicking cylinder <NUM> may absorb the liquid at the bottom end portion thereof and draw up the liquid to the top end portion thereof so as to supply the liquid to the first mister <NUM>. The first mister <NUM> may then dispense mist using the liquid. The first mister <NUM> may stop dispensing the mist when there is insufficient liquid in the tank <NUM>, at which point the user may add more liquid into the tank <NUM> as needed.

Similarly, the second wicking cylinder <NUM> may include a top end portion, a bottom end portion, and a middle portion extending between the top and bottom end portions thereof. The bottom end portion of the second wicking cylinder <NUM> may be positioned within the tank <NUM>. The second wicking cylinder <NUM> may be configured to absorb liquid in the tank <NUM>, if there is any, at the bottom end portion thereof and to draw up the liquid to the top end portion thereof. The middle portion of the second wicking cylinder <NUM> may be at least partially positioned within the tank <NUM>. The top end portion of the second wicking cylinder <NUM> may be positioned outside the tank <NUM> and attached to the second mister <NUM>. As such, when the tank <NUM> is filled with liquid (e.g. water), the second wicking cylinder <NUM> may absorb the liquid at the bottom end portion thereof and draw up the liquid to the top end portion thereof so as to supply the liquid to the second mister <NUM>. The second mister <NUM> may then dispense mist using the liquid. The second mister <NUM> may stop dispensing the mist when there is insufficient liquid in the tank <NUM>, at which point the user may add more liquid into the tank <NUM> as needed.

The air cooler <NUM> may further include a tray (not shown) disposed beneath the first and second misters <NUM> and <NUM> and configured to capture any condensation or liquid that drips from the first and second misters <NUM> and <NUM>. In some embodiments, a single tray may be used to capture the condensation or liquid that drips from the first and second misters <NUM> and <NUM>. In some other embodiments, each of the first and second misters <NUM> and <NUM> may be physically coupled with an individual tray disposed there beneath to capture the condensation or liquid that drips there from.

As shown in <FIG> and <FIG>, the air cooler <NUM> may include a power button <NUM> disposed on the body <NUM> thereof. In some embodiments, the power button <NUM> may be disposed in the bottom portion <NUM> of the body <NUM>. The power button <NUM> may be configured to activate (e.g. power ON) or deactivate (e.g. power OFF) the air cooler <NUM>. The power button <NUM> may also be configured to change the fan speed of the fan <NUM>. For example, when the power button <NUM> is activated at a first time, the fan <NUM> may be turned ON (e.g., to a high speed). If the tank <NUM> has liquid (e.g. water) therein, the first and second misters <NUM> and <NUM> may dispense mist into the air flow from the fan <NUM>. When the power button <NUM> is activated at a second time, the fan speed may decrease, for example, to a medium speed. When the power button <NUM> is activated at a third time, the fan speed may decrease, for example, to a low speed. When the power button <NUM> is activated at a fourth time, the fan <NUM> may be turned OFF. Therefore, by actuating the power button <NUM>, the user may adjust a fan speed of the fan <NUM> as needed, and the mist dispensed from the first and second misters <NUM> and <NUM> is mixed with the air flow from the fan <NUM> so as to provide an additional cooling effect to the user.

The air cooler <NUM> may include a circuit board disposed within the body <NUM> thereof. The circuit board may be positioned in the middle <NUM> or bottom portion <NUM> of the body <NUM>. The circuit board may be electronically connected to the power button <NUM> and the motor electronically coupled to the fan <NUM> so as to control the operation of the fan <NUM> upon an actuation of the power button <NUM> by the user.

The air cooler <NUM> may further include a charging port <NUM> disposed on the body <NUM> thereof. The charging port <NUM> may be a USB charging port. In some embodiments, the charging port <NUM> may be a USB-C charging port which may receive a USB-C charging adapter for charging the air cooler <NUM>. Although <FIG> and <FIG> depict that the charging port <NUM> is disposed on the right face <NUM> of the body <NUM>, it is contemplated that the charging port <NUM> may be disposed at other desired locations on the body <NUM>, such as the left face <NUM>, a top face <NUM>, or a bottom face <NUM> of the body <NUM>.

The air cooler <NUM> may also include a light controller <NUM> disposed on the body <NUM> thereof and configured to control the operation of a light source (not shown) positioned on or in the body <NUM> thereof. The light source may be a light-emitting diode (LED) or any other desired light sources. For example, the light source may be positioned in the opening <NUM> of the air cooler <NUM>. As such, upon actuation of the light controller <NUM>, the light source may emit light in the opening <NUM>, which may shine through the first cover <NUM> that covers the opening <NUM>. In some embodiments, the light source may emit light in one of seven colors. The user may press the light controller <NUM> to change the colors of the light or to set the light source to automatically change the colors of the light through the available colors. In some other embodiments, the light source may emit light in fewer or more colors (i.e. fewer or more than seven colors). Although <FIG> and <FIG> depict that the light controller <NUM> is disposed on the right face <NUM> of the body <NUM>, it is contemplated that the light controller <NUM> may be disposed at other desired locations on the body <NUM>, such as the left face <NUM>, the top face <NUM>, or the bottom face <NUM> of the body <NUM>.

<FIG> depicts a perspective front sectional view of the air cooler of <FIG> without the front face of the body. As shown in <FIG>, the fan <NUM> is disposed in the top portion <NUM> of the body <NUM>. The fan <NUM> includes the fan hub <NUM> and the plurality of fan blades <NUM> centrally attached to the fan hub <NUM>. The plurality of fan blades <NUM> may be generally straight or curved in shape or any other desired shapes. The plurality of fan blades <NUM> may rotate around the fan hub <NUM> when the air cooler <NUM> is in operation. The fan shroud <NUM> may circumferentially surround the fan <NUM>. The fan shroud <NUM> may be a plastic ring circumferentially surrounding the fan <NUM> so as to funnel an air flow from the fan <NUM> when the air cooler <NUM> is in operation.

As shown in <FIG>, the first mister <NUM> is disposed at a first location within the body <NUM>. The second mister <NUM> is disposed at a second location within the body <NUM>, and the second location is different from the first location. The first and second locations may be symmetrical within the body <NUM> of the air cooler <NUM>, or in any other desired configurations. According to the invention, the first and second locations are in front of the plurality of fan blades <NUM> in the top portion <NUM> of the body <NUM>. According to the invention, the first and second locations may be at bottom portions (e.g. a first bottom portion and a second bottom portion) of the fan shroud <NUM> and in front of the plurality of fan blades <NUM> in the top portion <NUM> of the body <NUM>. Each of the first and second misters <NUM> and <NUM> may dispense (or spray) mist into the air flow from the fan <NUM> when the air cooler <NUM> is in operation. The first mister <NUM> is positioned at a first angle directing to the fan <NUM>. The second mister <NUM> is positioned at a second angle directing to the fan <NUM>. The first and second angles may be the same or different. The angled first and second misters <NUM> and <NUM> allows the mist dispensed there from to be sufficiently mixed with the air flow from the fan <NUM> when the air cooler <NUM> is in operation.

Referring to <FIG>, the first wicking cylinder <NUM> may be at least partially coupled to the first mister <NUM> and configured to supply liquid to the first mister <NUM> for dispensing mist. The first wicking cylinder <NUM> may include a top end portion <NUM> (see <FIG>), a bottom end portion <NUM>, and a middle portion <NUM> extending between the top and bottom end portions <NUM> and <NUM> thereof. The bottom end portion <NUM> of the first wicking cylinder <NUM> may be positioned within the tank <NUM> received in the opening <NUM> defined in the body <NUM>. The first wicking cylinder <NUM> may be configured to absorb liquid in the tank <NUM>, if there is any, at the bottom end portion <NUM> thereof and to draw up the liquid to the top end portion <NUM> of the first wicking cylinder <NUM>. The middle portion <NUM> of the first wicking cylinder <NUM> may be at least partially positioned within the tank <NUM>. The top end portion <NUM> of the first wicking cylinder <NUM> may be positioned outside the tank <NUM> and attached to the first mister <NUM>. As such, when the tank <NUM> is filled with liquid (e.g. water), the first wicking cylinder <NUM> may absorb the liquid at the bottom end portion <NUM> thereof and draw up the liquid to the top end portion <NUM> thereof so as to supply the liquid to the first mister <NUM>. The first mister <NUM> may then dispense mist using the liquid. The first mister <NUM> may stop dispensing the mist when there is insufficient liquid in the tank <NUM>, at which point the user may add more liquid into the tank <NUM> as needed.

As described herein, the second wicking cylinder <NUM> may be at least partially coupled to the second mister <NUM> and configured to supply liquid to the second mister <NUM> for dispensing mist. The second wicking cylinder <NUM> may include a top end portion <NUM> (see <FIG>), a bottom end portion <NUM>, and a middle portion <NUM> extending between the top and bottom end portions <NUM> and <NUM> thereof. The bottom end portion <NUM> of the second wicking cylinder <NUM> may be positioned within the tank <NUM>. The second wicking cylinder <NUM> may be configured to absorb liquid in the tank <NUM>, if there is any, at the bottom end portion <NUM> thereof and to draw up the liquid to the top end portion <NUM> of the second wicking cylinder <NUM>. The middle portion <NUM> of the second wicking cylinder <NUM> may be at least partially positioned within the tank <NUM>. The top end portion <NUM> of the second wicking cylinder <NUM> may be positioned outside the tank <NUM> and attached to the second mister <NUM>. As such, when the tank <NUM> is filled with liquid (e.g. water), the second wicking cylinder <NUM> may absorb the liquid at the bottom end portion <NUM> thereof and draw up the liquid to the top end portion <NUM> thereof so as to supply the liquid to the second mister <NUM>. The second mister <NUM> may then dispense mist using the liquid. The second mister <NUM> may stop dispensing the mist when there is insufficient liquid in the tank <NUM>, at which point the user may add more liquid into the tank <NUM> as needed.

<FIG> depicts a front sectional view of the air cooler of <FIG> without the front face of the body. As shown in <FIG>, the fan <NUM> is disposed in the top portion <NUM> of the body <NUM>. The fan <NUM> includes the fan hub <NUM> and the plurality of fan blades <NUM> centrally attached to the fan hub <NUM>. The plurality of fan blades <NUM> may be generally straight or curved in shape or any other desired shapes. The plurality of fan blades <NUM> may rotate around the fan hub <NUM> when the air cooler <NUM> is in operation.

Referring to <FIG>, the first mister <NUM> is disposed at a first location within the body <NUM>. The second mister <NUM> is disposed at a second location within the body <NUM>, and the second location is different from the first location. The first and second locations may be symmetrical within the body <NUM> of the air cooler <NUM> or in any other desired configurations. According to the invention, the first and second locations are in front of the plurality of fan blades <NUM> in the top portion <NUM> of the body <NUM>. According to the invention, the first and second locations may be at bottom portions (e.g. a first bottom portion and a second bottom portion) of the fan shroud <NUM> and in front of the plurality of fan blades <NUM> in the top portion <NUM> of the body <NUM>. Each of the first and second misters <NUM> and <NUM> may dispense (or spray) mist into the air flow from the fan <NUM> when the air cooler <NUM> is in operation. The first mister <NUM> is positioned at a first angle directing to the fan <NUM>. The second mister <NUM> is positioned at a second angle directing to the fan <NUM>. The first and second angles may be the same or different. The angled first and second misters <NUM> and <NUM> allows the mist dispensed there from to be sufficiently mixed with the air flow from the fan <NUM> when the air cooler <NUM> is in operation.

As shown in <FIG>, the first wicking cylinder <NUM> may be at least partially coupled to the first mister <NUM> and configured to supply liquid to the first mister <NUM> for dispensing mist. The second wicking cylinder <NUM> may be at least partially coupled to the second mister <NUM> and configured to supply liquid to the second mister <NUM> for dispensing mist. Each of the first and second wicking cylinder <NUM> and <NUM> may include a top end portion (<NUM> or <NUM>, respectively) (see <FIG>), a bottom end portion (<NUM> or <NUM>, respectively), and a middle portion (<NUM> or <NUM>, respectively) extending between the top and bottom end portions thereof. The bottom end portion (<NUM> or <NUM>, respectively) of each of the first and second wicking cylinder <NUM> and <NUM> may be positioned within the tank <NUM>. Each of the first and second wicking cylinder <NUM> and <NUM> may be configured to absorb liquid in the tank <NUM>, if there is any, at the bottom end portion (<NUM> or <NUM>, respectively) thereof and to draw up the liquid to the top end portion (<NUM> or <NUM>, respectively) of each of the first and second wicking cylinder <NUM> and <NUM>. The middle portion (<NUM> or <NUM>, respectively) of each of the first and second wicking cylinder <NUM> and <NUM> may be at least partially positioned within the tank <NUM>. The top end portion (<NUM> or <NUM>, respectively) of each of the first and second wicking cylinder <NUM> and <NUM> may be positioned outside the tank <NUM> and attached to each of the first and second misters <NUM> and <NUM>, respectively. As such, when the tank <NUM> is filled with liquid (e.g. water), each of the first and second wicking cylinder <NUM> and <NUM> may absorb the liquid at the bottom end portion (<NUM> or <NUM>, respectively) thereof and draw up the liquid to the top end portion (<NUM> or <NUM>, respectively) thereof to supply the liquid to each of the first and second misters <NUM> and <NUM>, respectively. Each of the first and second misters <NUM> and <NUM> may then dispense mist using the liquid. Each of the first and second misters <NUM> and <NUM> may stop dispensing the mist when there is insufficient liquid in the tank <NUM>, at which point the user may add more liquid into the tank <NUM> as needed.

<FIG> depicts a perspective front view of the tank with the first and second wicking cylinders at least partially positioned within the tank. The tank <NUM> may be received in the opening <NUM> of the body <NUM> of the air cooler <NUM> as described herein. The tank <NUM> may be configured to store a liquid (e.g. water) therein. As shown in <FIG>, the top end portion (<NUM> or <NUM>, respectively) of each of the first and second wicking cylinders <NUM> and <NUM> may be positioned outside the tank <NUM> and attached to each of the first and second misters <NUM> and <NUM>, respectively. The bottom end portion (<NUM> or <NUM>, respectively) (see <FIG> or <FIG>) and at least part of the middle portion (<NUM> or <NUM>, respectively) (also see <FIG> or <FIG>) of each of the first and second wicking cylinders <NUM> and <NUM> may be positioned within the tank <NUM>. Each of the first and second wicking cylinders <NUM> and <NUM> may be configured to absorb liquid in the tank <NUM>, if there is any, at the bottom end portion (<NUM> or <NUM>, respectively) thereof and to draw up the liquid to the top end portion (<NUM> or <NUM>, respectively) of each of the first and second wicking cylinder <NUM> and <NUM>. The first and second misters <NUM> and <NUM> may then dispense mist using the liquid. The first and second misters <NUM> and <NUM> may stop dispensing the mist when there is insufficient liquid in the tank <NUM>, at which point the user may add more liquid into the tank <NUM> as needed.

<FIG> depicts a rear view of the air cooler of <FIG>. As shown in <FIG>, the air cooler <NUM> may include the second fan grill <NUM> (or the second fan guard) covering the fan <NUM> and the fan shroud <NUM> (see <FIG> or <FIG>) from the rear face <NUM> of the body <NUM> thereof. <FIG> shows that the fan shroud <NUM> includes the rear edge <NUM>. The rear edge <NUM> may not connect to the second fan grill <NUM>.

The air cooler <NUM> may include a kickstand <NUM> disposed on the rear face <NUM> of the body <NUM> thereof. The kickstand <NUM> may be disposed in the bottom portion of the body <NUM>. In some embodiments, the kickstand <NUM> may be rotatably attached to the rear face <NUM> of the body <NUM>, for example, along a seam <NUM>. The kickstand <NUM> may be in a closed position or an open position. <FIG> shows that the kickstand <NUM> is in the closed position. When the kickstand <NUM> is in the closed position, the kickstand <NUM> may be part of the rear face <NUM> of the body <NUM> such that the kickstand <NUM> matches the contour of the rear face <NUM> of the body <NUM>. For example, when the kickstand <NUM> is in the closed position, the kickstand <NUM> is integrated with the body <NUM> and does not protrude from the rear face <NUM> of the body <NUM>. On the other hand, when the kickstand <NUM> is in the open position (see <FIG>), the kickstand <NUM> may be moved to a position outside the body <NUM> by rotating away from the rear face <NUM> of the body <NUM>. When the kickstand <NUM> is in the open position, the kickstand <NUM> may support the air cooler <NUM> on a surface <NUM> (see <FIG>). The surface <NUM> may be a surface of a table, a desk, a floor, or the like.

The air cooler <NUM> may further include a second cover <NUM> (e.g. a rear cover) disposed on the rear face <NUM> of the body <NUM> thereof. The second cover <NUM> may be disposed at a location lower than the fan <NUM>. For example, the second cover <NUM> may be disposed in the middle portion of the body <NUM>. The second cover <NUM> may be removable. In some embodiments, the second cover <NUM> may be rotatably coupled to the rear face <NUM> of the body <NUM>, such as via a hinge or any other desired coupling mechanisms.

The second cover <NUM> may be in a closed position or an open position. <FIG> shows the second cover <NUM> in the closed position. When the second cover <NUM> is in the closed position, the second cover <NUM> covers the opening <NUM> defined in the body <NUM> from the rear face <NUM> of the body <NUM>. When the second cover <NUM> is in the closed position, the second cover <NUM> may be part of the rear face <NUM> of the body <NUM> such that the second cover <NUM> matches the contour of the rear face <NUM> of the body <NUM>. For example, when the second cover <NUM> is in the closed position, the second cover <NUM> is integrated with the body <NUM> and does not protrude from the rear face <NUM> of the body <NUM>.

The second cover <NUM> may further include a tab <NUM> disposed thereon. For example, the tab <NUM> may be disposed on a top portion of the second cover <NUM>. The user may pull the tab <NUM> to open the second cover <NUM> to the open position. When the second cover <NUM> is in the open position, liquid (e.g. water) may be added into the tank <NUM> received in the opening <NUM> of the body <NUM>.

<FIG> depicts a perspective rear view of the air cooler of <FIG>. <FIG> shows that the second cover <NUM> is in the closed position. <FIG> also shows that the kickstand <NUM> is in the closed position.

<FIG> depicts a perspective side view of the air cooler of <FIG> supported on a surface. The surface <NUM> may be a surface of a table, a desk, a floor, or the like. <FIG> shows the kickstand <NUM> in the open position. When the kickstand <NUM> is in the open position, the kickstand <NUM> may be moved to a position outside the body <NUM> of the air cooler <NUM> by rotating away from the rear face <NUM> of the body <NUM> so as to support the air cooler <NUM> on the surface <NUM>.

Claim 1:
An air cooler (<NUM>) comprising:
a body (<NUM>) having a top portion (<NUM>), a bottom portion (<NUM>), and a middle portion (<NUM>) situated between the top and bottom portions;
a fan (<NUM>) disposed in the top portion of the body, the fan including a fan hub (<NUM>) and a plurality of fan blades (<NUM>) centrally attached to the fan hub; and
a first mister (<NUM>) disposed at a first location within the body, the first location being in front of the plurality of fan blades in the top portion of the body,
characterized in that the air cooler comprises a second mister (<NUM>) disposed at a second location within the body, the second location being in front of the plurality of fan blades in the top portion of the body, and the second location being different from the first location, and
in that the first mister is positioned at a first angle directing to the fan and the second mister is positioned at a second angle directing to the fan so that the mist dispensed by the first and second misters is directly mixed with an airflow from the fan.