[001] The present subject matter described herein, relates to the technical field of fan. The present subject matter, in particularly, relates to a pedestal fan assembly for creating an air current in the surrounding. The present subject matter further relates to a pedestal fan assembly having a square base and square stem for better stability, specially designed knob for tilting and height adjustment and specially designed snap lock for cowl fitment.
BACKGROUND AND PRIOR ART AND PROBLEM IN PRIOR ART:
[002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[003] A conventional fan typically includes a set of blades driven by an AC or DC electric motor to generate air flow. Fans are available in variety of sizes. Generally, sweep of a ceiling fan is in the range of 900mm to 1400mm and is usually mounted in a suspended manner from a ceiling to provide a downward flow of air to cool a room. Sweep of desk fan are often around 300mm to 600mm and are usually free standing and portable. Floor-standing pedestal fan is generally mounted on a pedestal of fixed variable height in the range of 900mm to 1650mm, and intended for use in free inlet and outlet of air.
[004] A disadvantage of this type of fan is that they tend to deform due to low sectional area. The low sectional area in stem of the pedestal fan cannot distribute unwanted stress on surface uniformly. As a result, the stem of the pedestal fan bend forward after some time of its operation. Further, the various mechanism provided to adjust the height and direction of flow (tilting and oscillation mechanism) of air requires more human effort to operate. These mechanism (height adjustment, oscillation and tilting) have complicated assemblies and take more time to assemble.

[005] Furthermore, due to the mounting of fan housing assembly, containing the fan blades, guards to cover fan blades, and motor to drive the fan blades, on the top of pedestal, the centre of gravity of a pedestal fan is usually located towards the top of the pedestal. This render the pedestal fan prone to falling if accidently knocked by the user. This accidental knocking can occur in dark when the pedestal fan is not visible to user.
[006] The present invention seeks to provide an improved fan assembly which obviates disadvantages of existing pedestal fan.
[007] The information disclosed in this background of the disclosure section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
OBJECTS OF THE INVENTION:
[008] It is therefore the object of the present subject matter to overcome the aforementioned and other drawbacks in prior method/product/apparatus.
[009] The principal objective of the present subject matter is to develop a pedestal fan with square base, square stem and square guard to provide stability and more surface area to the pedestal fan assembly.
[0010] Another object of the present subject matter is to develop a pedestal fan assembly with a special twisted tilting knob for tilting mechanism to reduce human effort.
[0011] Another object of the present subject matter is to develop a pedestal fan assembly with a special height adjustment knob to reduce human effort.
[0012] Another object of the present subject matter is to develop a pedestal fan assembly with multicolor LED in the base of the pedestal fan assembly.
[0013] Yet another object of the present subject matter is to develop a pedestal fan assembly with square stem having variable thickness for better gripping.

[0014] Yet another object of the present subject matter is to develop a pedestal fan assembly with innovative cowl to accommodate motor and reduce the process and assembly time of front and back cowl.
[0015] Still yet another object of the present subject matter is to develop a pedestal fan assembly with remote control function.
[0016] These and other objects and advantages of the present subject matter will be apparent to a person skilled in the art after consideration of the following detailed description taken into consideration with accompanying drawings in which preferred embodiments of the present subject matter are illustrated.
SUMMARY OF THE INVENTION:
[0017] Solution to one or more drawbacks of existing pedestal fan, and additional advantages are provided through the present pedestal fan assembly as disclosed in the present disclosure. Additional features and advantages are realized through the technicalities of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered to be a part of the claimed disclosure.
[0018] According to one of the embodiment, the present subject matter relates to a pedestal fan assembly which includes a base assembly, a stem assembly having its bottom end attached to the base assembly, a fan housing assembly having a plurality of fan blades driven by motor assembly with an induction motor and a synchronous motor, wherein the plurality of fan blades is encased in a square geometry front guard and square geometry back guard affix to each other through a guard ring and the motor assembly is encased in a cowl, and a knuckle assembly to connect the fan housing assembly with the top end of the stem assembly. In the pedestal fan assembly, the base assembly and the stem assembly has a square geometry to provide better stability and resistance towards bending to the pedestal fan assembly.
[0019] In an aspect, the base assembly includes a base bottom cover, a dead weight having a hole in the middle placed over the base bottom cover to hold the

assembly during operation, a base top cover having a hole in the middle to cover the dead weight and a base plate to accommodate said end of the stem assembly. The base plate is fixed in the hole provided in the dead weight and the base top cover.
[0020] In an aspect, the stem assembly includes a pole having its lower end fixed in the base plate provided in the base assembly, a slider pole provided on the top end of the pole which encompass the pole, a front stem and a back stem covering the pole from front and back respectively forming a square geometry, wherein the lower end of the front stem and back stem is affixed in the base assembly and the width of the front stem and back stem gradually decreases towards the top which provides better gripping and stability to pedestal fan assembly, and a plate with threads provided on the slider pole and affixed to a height adjustment knob having a screw in front and a slot on both the sides for better and comfortable gripping.
[0021] In an aspect, the fastening of the height adjustment knob by tightening the screw of the height adjustment knob increases the pressure (in horizontal direction) on a cut section provided on the plate which results in pressure on the pole and restricted motion of the pole.
[0022] In an aspect, the height adjustment knob is circular, square and rectangular.
[0023] In an aspect, the cowl includes a front cowl having a slot in the middle to accommodate output shaft of the motor assembly and a back cowl to accommodate motor assembly. The front cowl and the back cowl is affixed to each other through snap locking mechanism.
[0024] In an aspect, the snap locking mechanism includes a female member provided on the back cowl and a male member provided on the front cowl with a protrusion to get locked in the female member of the back cowl. An extended portion in front of the protrusion is provided for better fitment of male member in female member.

[0025] In an aspect, a touch display system is provided on the front stem, the touch display system includes a user interface printed circuit board (PCB), a fly-back-circuit printed circuit board (PCB), a plurality of tact switches to perform various operations which includes but not limited to power control (ON/OFF), speed control (HIGH /MEDIUM/ LOW), breeze mode (running of fan at different speed in cyclic form with respect to time for n numbers of cycles till next command till next command), oscillation (ON/OFF), timer, sleep mode, light control and a buzzer to produce beep sound indicating conformation of command.
[0026] In an aspect, a remote control system is also provided to perform the operations which includes but not limited to power control (ON/OFF), speed control (HIGH /MEDIUM/ LOW), breeze mode (running of fan at different speed in cyclic form with respect to time for n numbers of cycles till next command till next command), oscillation (ON/OFF), timer, sleep mode and light control.
[0027] According to another embodiment, the present subject matter relates to a pedestal fan assembly which includes a base assembly, a stem assembly having its bottom end attached to the base assembly, a fan housing assembly having a plurality of fan blades driven by motor assembly with an induction motor and a synchronous motor, wherein the plurality of fan blades is encased in a square geometry front guard and square geometry back guard affix to each other through a guard ring and the motor assembly is encased in a cowl, a knuckle assembly to connect the fan housing assembly with the top end of the stem assembly and a tilting assembly for tilting the fan housing assembly in vertical direction.
[0028] In an aspect, the tilting assembly includes a teeth tight profile gear, a gear mechanism provided on the knuckle which is engaged with the teeth tight profile gear, a pole holder having its one end engaged with the slider pole and other end engaged with the knuckle, and a twisting knob having its screw end engaged with the knuckle through the teeth tight gear profile. The applying force to the twisting knob in the horizontal direction results in the angular displacement of the fan housing assembly in vertical direction.

[0029] In an aspect, the tilting assembly performs continuous tilting at each and every angle from 15° to 30° degrees.
[0030] According to another embodiment, the present subject matter relates to a pedestal fan assembly which includes a base assembly, a stem assembly having its bottom end attached to the base assembly, a fan housing assembly having a plurality of fan blades driven by motor assembly with an induction motor and a synchronous motor, wherein the plurality of fan blades is encased in a square geometry front guard and square geometry back guard affix to each other through a guard ring and the motor assembly is encased in a cowl, a knuckle assembly to connect the fan housing assembly with the top end of the stem assembly and an LED assembly provided in the square base assembly.
[0031] In an aspect, the LED assembly includes a tuneable LED light with multiple selected CCT / light intensity value for the human comfort at evening or night or at sleeping time, and a diffuser to diffuse the tuneable LED light.
[0032] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0033] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system or methods or structure in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:

[0034] Fig. 1 illustrates the isometric view of a pedestal fan assembly according to one of the embodiment of present subject matter.;
[0035] Fig. 2 illustrates exploded view of the pedestal fan assembly according to one of the embodiment of the present subject matter.;
[0036] Fig. 3 a illustrates exploded view and the sectional view of the stem assembly according to one of the embodiment of the present subject matter;
[0037] Fig. 3b illustrates isometric view of height adjustment knob according to one of the embodiment of the present subject matter;
[0038] Fig. 4a, 4b and 4c illustrates the top view, side view and isometric view of the cowl respectively, according to one of the embodiment of present subject matter;
[0039] Fig. 5 illustrates touch display provided on the front stem assembly of the pedestal fan assembly, according to one of the embodiment of the present subject matter;
[0040] Fig. 6a and 6b illustrates isometric view and exploded view of the tilting assembly of the pedestal fan assembly, according to one of the embodiment of the present subject matter;
[0041] Fig. 7 illustrates twisting knob of the tilting mechanism of the pedestal fan assembly, according to one of the embodiment of the present subject matter;
[0042] Fig. 8 illustrates the block diagram of working of the various operation performed by the pedestal fan assembly according to one of the embodiment of the present subject matter; and
[0043] Fig. 9 illustrates comparative finite element analysis of old conventional pedestal fan and pedestal fan assembly of present subject matter.
[0044] The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and

methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0045] While the embodiments of the disclosure are subject to various modifications and alternative forms, specific embodiment thereof have been shown by way of example in the figures and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.
[0046] The terms "comprises", "comprising", or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a device, system, assembly that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device. In other words, one or more elements in a system or device proceeded by "comprises... a" does not, without more constraints, preclude the existence of other elements or additional elements in the system or device.
[0047] Referring to figure 1 illustrating the isometric view of a pedestal fan assembly according to one of the embodiment of present subject matter. The pedestal fan assembly includes a base assembly 101, a stem assembly 102, a fan housing assembly 103 and a knuckle assembly 104. Bottom end of the stem assembly 102 is attached to the base assembly 101. The fan housing assembly includes a plurality of fan blades 207 which are driven by motor assembly 208. The plurality of fan blades 207 are encased between a square geometry front guard 209a and a square geometry back guard 209b both having cage like structure. Both the square geometry front guard 209a and the square geometry back guard 209b are affixed to each other through a guard ring tightened by fastening means. Both the front guard 209a and the back guard 209b protect user from unwanted accidents while operation of the pedestal fan assembly 100. The motor assembly 208 is encased in a cowl 210. The knuckle assembly 104 is

provided to connect the fan housing assembly 103 with the top end of the stem assembly 102. Both the stem assembly 102 and the base assembly 101 is provided with square geometry for better stability.
[0048] The motor assembly 208 may include, but not limited to, an induction
5 motor and a synchronous motor. The induction motor converts the electrical
energy into mechanical energy and drive the fan blades 207 to create an air current by rotation of plurality of fan blades 207. The synchronous motor provides oscillation to the fan housing assembly 103.
[0049] Referring to Figure 2 illustrating exploding view of the pedestal fan
10 assembly 100 according to one of the embodiment of the present subject matter.
The base assembly 101 includes a base bottom cover 201 having square geometry,
a dead weight 202 placed over the base bottom cover 201, a base top cover 203 to
cover the dead weight 202 and a base plate 204 to accommodate the end of the
stem assembly 102. The dead weight 202 is used to shift the center of mass
15 towards the base and increase the stability of the pedestal fan 100. Further, a hole
is provided in the dead weight 202 to accommodate the base plate 204. The base top cover 203 also has a hole in the middle to accommodate the lower end of the stem assembly 102.
[0050] Referring to figure 2 and 3a illustrating exploding view and the sectional
20 view of the stem assembly 102 according to one of the embodiment of the present
subject matter. The stem assembly 102 according to one of the embodiment of
present subject matter includes a pole 301 with its lower end fixed in the base
plate 204 provided in the base assembly 101, a slider pole 302 provided on the top
end of the pole 301, a front stem 205 and a back stem 206 to cover the pole 301
25 from its front and back side respectively and a plate 303 with threads provided on
the slider pole 302. The slider pole 302 encompasses the top of the pole 301. The
front stem 205 and the back stem 206 forms a square geometry in assembled form.
The lower end of the front stem 205 and the back stem 206 is affixed to the base
assembly 101. The width of the front stem 205 and the back stem 206 gradually
30 decreases to the top. The front stem 205 and the back stem 206 at the lower end of
10

the stem assembly is widest and at the top end it is narrowest. This gradual decrease in the stem width together with the square geometry provides better gripping to the user and better stability to the pedestal fan assembly 100 during operation. The plate is affixed to a height adjustment knob 304.
5 [0051] Referring to Figure 3b illustrating the isometric view of height adjustment
knob 304 according to one of the embodiment of the present subject matter. The height adjustment knob 304 has a screw 305 on the front end. Further, slots 306 are provided on both sides of the height adjustment knob 304 for better and comfortable gripping. The height adjustment knob 304 can be of rectangular,
10 square or circular geometry. The height adjustment knob 304 is designed to use
couple force mechanism during height adjustment. The resting position of the height adjustment knob 304 is specially designed for the comfort to reduce the force apply by the user. To adjust the height of the pedestal fan assembly 100, the height adjustment knob 304 is unscrewed from the plate 303. The unscrewing of
15 the height adjustment knob 304 releases the pressure from the plate 303 and the
sliding pole 302. The sliding pole 302 is adjusted as per the requirement and the height adjustment knob 304 is fastened. The fastening of the height adjustment knob 304 increases the pressure on a cut section (not shown) provided on the plate 303 which results in pressure on the pole 301 and restricted motion of the pole
20 301.
[0052] Referring to Figure 4a, 4b and 4c illustrating the top view, side view and isometric view of the cowl assembly 210 respectively. The cowl assembly 210 according to one of the embodiment of the present subject matter includes a front cowl 401 and a back cowl 403. Both the front cowl 401 and the back cowl 403
25 have square geometry. The cowl assembly 210 accommodate the motor assembly
208 used to drive the fan blades 207 of the pedestal fan assembly 100. The front cowl 401 has a slot 402 in the middle to accommodate the output shaft of the motor assembly 208. The back cowl 403 is the portion where motor assembly 208 is placed and both the front cowl 401 and the back cowl 403 are affixed to each
30 other through a snap lock mechanism. The cowl assembly 210 protect user from
11

any type of unwanted noise and electrical shock. It also adds to the aesthetics of the pedestal fan assembly 100.
[0053] The snap lock mechanism includes a female member 404 provided on the
back cowl 403 of the cowl assembly 210 and a male member 405 provided on the
5 front cowl 401 of the cowl assembly 210. The male member 405 has a protrusion
406 which gets locked in the female member 404. An extended portion 407 is
provided in the front of the protrusion 406 for better fitment of male member 405
with the female member 404. This extended portion 407 ensures that no noise is
produced by the cowl assembly 210 during operation of the pedestal fan assembly
10 100.
[0054] Referring to Figure 5 illustrating the touch display provided on the front stem assembly of the pedestal fan assembly, according to one of the embodiment of the present subject matter. The touch display system includes a user interface printed circuit board (PCB) 211, a fly-back-circuit printed circuit board (PCB)
15 212 and a plurality of tact switches 501 to perform various operations which
includes but not limited to power control (ON/OFF), speed control (HIGH /MEDIUM/ LOW), breeze mode (running of fan at different speed in cyclic form with respect to time for n numbers of cycles till next command till next command), oscillation (ON/OFF), timer, sleep mode and light control. All these
20 operations are also performed with the help of an infrared remote control. A
remote control holder 105 is provided on the back stem 206 of the stem assembly 102.
[0055] Referring to Figure 8 illustrating the block diagram of working of the various operation performed by the pedestal fan assembly 100 according to one of
25 the embodiment of the present subject matter. The user interface printed circuit
board 211 includes but not limited to microcontroller, switches, LED, resistances, capacitors, infrared (IR) sensor, beeper, transistors and fuse. The fly-back- circuit printed circuit board 212 is bifurcated into two parts supply and operation. Further, it divides the input power in both the user interface printed circuit board
30 211 and the fly-back circuit printed circuit board 212. The fly-back-printed circuit
12

board 212 may include, but not limited to, tracks / switches, resistances, fly-back
circuit, oscillating circuit, capacitors, integrated circuit (IC), transformers and
transistors. All operations can be controlled by either remote control or by
pressing the tact switch 501 and a buzzer is provided which produce beep sound
5 to conform the command given by the user. Further, the operation is also
displayed on touch display.
[0056] When the user press remote control button or operates tact switch 501 command will be send to the square pedestal fan 100. The infrared (IR) receiver of the user interface printed circuit board 211 receive the command signal and
10 transfer it to the fly-back- circuit printed circuit board 212 for operation
commands like speed control, oscillation, timer application etc. The user interface printed circuit board 211 perform as controller, user interface and have display control. The fly-back- circuit printed circuit board 212 have control on supply and operations. The fly-back- circuit printed circuit board 212 receive alternating
15 current from main supply and by the help of fly-back circuit further distribute /
transfer desired supply to the user interface printed circuit board 211, operation unit of the fly-back- circuit printed circuit board 212, fan motor assembly 208 and LED. With the help of fly-back circuit supply is transferred to operation unit of The fly-back- circuit printed circuit board 212 and display control and interface
20 unit of the user interface printed circuit board 211. By this phenomenon, all
operations as disclosed above can be operated by remote control or by tact switch 501 and all rest activities can be performed manual like tilting, height adjustment and movement of fan from one place to another place.
[0057] Referring to Figure 6a and 6b illustrating isometric view and exploded
25 view of the tilting assembly 601 of the pedestal fan assembly 100, according to
one of the embodiment of the present subject matter. The tilting assembly 601 includes a teeth tight profile gear 602, the knuckle 104 having a gear mechanism 603, a pole holder 604 and a twisting knob 605. In tilting assembly 601, the gear mechanism 603 provided on the knuckle 104 is engaged with the teeth tight
13

profile gear 602. The pole holder 604 has its one end engaged with the slider pole 302 and the other end engaged with the knuckle 104.
[0058] Referring to Figure 7 illustrating the twisting knob 605 of the tilting
assembly 601 of the pedestal fan assembly 100, according to one of the
5 embodiment of the present subject matter. The twisting knob 605 has a screw 606
on its one end and a twisted handle 607 on the other. The screw 606 end of the
twisting knob 605 is engaged with the knuckle 104 through the teeth tight gear
profile 602. When force is applied on the twisted handle 607 side in the horizontal
direction, the tilting assembly 601 displace the fan housing assembly 103
10 angularly in the vertical direction. The tilting assembly 601 performs continuous
twisting and the twisting is not limited to single, double or n-numbers of twisting in twisting knob 605. This facilitates the tilting of the fan housing assembly 103 at each and every angle from 15o to 30o degrees.
[0059] Further, an LED assembly 213 is provided in the base assembly 101 of
15 the pedestal fan assembly 100. The LED assembly 213 includes a tuneable LED
light with multiple selected CCT / light intensity value for the human comfort at evening or night or at sleeping time and a diffuser 214 to diffuse the tuneable LED light. The light can be multicolored and can be adjustable with time.
[0060] Referring to Figure 9, illustrating the comparative finite element analysis
20 of old conventional pedestal fan and pedestal fan assembly 100 of present subject
matter. It can be inferred from the FEA analysis that deformation due to bending
is less in the pedestal fan assembly 100 of present subject matter than the old
conventional pedestal fan. The stress in the top portion of the conventional
pedestal fan is more than the pedestal fan assembly 100 of present subject matter.
25 Reason for this less stress in top portion of the pedestal fan assembly 100 of the
present subject matter is its higher sectional area which distributes the unwanted stress to the base surface and integration of pole design with architect of pedestal fan.
[0061] It will be understood by those within the art that, in general, terms used
30 herein, and especially in the appended claims (e.g., bodies of the appended
14

claims) are generally intended as “open” terms (e.g., the term “including” should
be interpreted as “including but not limited to,” the term “having” should be
interpreted as “having at least,” the term “includes” should be interpreted as
“includes but is not limited to,” etc.). It will be further understood by those within
5 the art that if a specific number of an introduced claim recitation is intended, such
an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such
10 phrases should not be construed to imply that the introduction of a claim recitation
by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should
15 typically be interpreted to mean “at least one” or “one or more”); the same holds
true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two
20 recitations,” without other modifiers, typically means at least two recitations, or
two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include
25 but not be limited to systems that have A alone, B alone, C alone, A and B
together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least
30 one of A, B, or C” would include but not be limited to systems that have A alone,
B alone, C alone, A and B together, A and C together, B and C together, and/or A,
15

B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."
[0062] It will be further appreciated that functions or structures of a plurality of components or steps may be combined into a single component or step, or the functions or structures of one-step or component may be split among plural steps or components. The present invention contemplates all of these combinations. Unless stated otherwise, dimensions and geometries of the various structures depicted herein are not intended to be restrictive of the invention, and other dimensions or geometries are possible. In addition, while a feature of the present invention may have been described in the context of only one of the illustrated embodiments, such feature may be combined with one or more other features of other embodiments, for any given application. It will also be appreciated from the above that the fabrication of the unique structures herein and the operation thereof also constitute methods in accordance with the present invention. The present invention also encompasses intermediate and end products resulting from the practice of the methods herein. The use of "comprising" or "including" also contemplates embodiments that "consist essentially of or "consist of the recited feature.

We claim:

A pedestal fan assembly (100), comprising: a base assembly (101);
a stem assembly (102) having its bottom end attached to the base assembly (101);
a fan housing assembly (103) having a plurality of fan blades (207) driven by motor assembly (208) with an induction motor and a synchronous motor, wherein the plurality of fan blades (207) is encased between a square geometry front guard (209a) and square geometry back guard (209b) affix to each other through a guard ring, and the motor assembly (208) is encased in a cowl assembly (210); and
a knuckle assembly (104) to connect the fan housing assembly (203) with the top end of the stem assembly (102);
wherein the base assembly (101) and the stem assembly (102) has a square geometry to provide better stability and resistance towards bending to the pedestal fan assembly (100).
. The pedestal fan assembly (100) as claimed in claim 1, wherein the base assembly (101) comprises:
a base bottom cover (201);
a dead weight (202) having a hole in the middle, placed over the base bottom cover (201) to hold the assembly during operation;
a base top cover (203) having a hole in the middle to cover the dead weight (202); and
a base plate (204) to accommodate lower end of the stem assembly (102), wherein the base plate (204) is fixed in the hole provided in the dead weight (204) and the base top cover (203).

The pedestal fan assembly (100) as claimed in claim 1, wherein the stem assembly (102) comprises:
a pole (301) having its lower end fixed in the base plate (204) provided in the base assembly (101);
a slider pole (302) provided on the top end of the pole (301), encompassing the pole (301);
a front stem (205) and a back stem (206) covering the pole (301) from front and back respectively, forming a square geometry, wherein the lower end of the front stem (205) and back stem (206) is affixed in the base assembly (101) and the width of the front stem (205) and back stem (206) gradually decreases towards the top which provides better gripping and stability to pedestal fan assembly (100); and
a plate (303) with threads provided on the slider pole (302) and affixed to a height adjustment knob (304) having a screw (305) in front and a slots (306) on both the sides for better and comfortable gripping. The pedestal fan assembly (100) as claimed in claim 3, wherein the fastening of the height adjustment knob (304) by tightening the screw (305) of the height adjustment knob (304) increases the pressure (in horizontal direction) on a cut section provided on the plate (303) which results in pressure on the pole (301) and restricted motion of the pole (301).
The pedestal fan assembly (100) as claimed in claim 3, wherein the height adjustment knob (304) is circular, square and rectangular. The pedestal fan assembly (100) as claimed in claim 1, wherein the cowl assembly (210) comprises:
a front cowl (401) having a slot (402) in the middle to accommodate output shaft of the motor assembly (208); and

a back cowl (403) to accommodate motor assembly (208), wherein the front cowl (401) and the back cowl (403) is affixed to each other through snap locking mechanism.
The pedestal fan assembly (100) as claimed in claim 6, wherein the snap locking mechanism comprises:
a female member (404) provided on the back cowl (403); and
a male member (405) provided on the front cowl (401), with a protrusion (406) to get locked in the female member (404) of the back cowl (403), wherein an extended portion (407) in front of the protrusion (406) is provided for better fitment of male member (405) in female member (404).
The pedestal fan assembly (100) as claimed in claim 1, wherein a touch display system is provided on the front stem (205), the touch display system comprises:
a user interface printed circuit board (PCB) (211);
a fly-back-circuit printed circuit board (PCB) (212) which is bifurcated into two parts supply and operation and supply and divides the input power between the fly-back-circuit printed circuit board (212) and the user interface printed circuit board (211);
a plurality of tact switches (501) to perform various operations which includes but not limited to power control (ON/OFF), speed control (HIGH /MEDIUM/ LOW), breeze mode (running of fan at different speed in cyclic form with respect to time for n numbers of cycles till next command till next command), oscillation (ON/OFF), timer, sleep mode and light control; and
a buzzer to produce beep sound indicating conformation of command.

The pedestal fan assembly (100) as claimed in claim 8, wherein a remote control system is also provided to perform the operations which includes but not limited to power control (ON/OFF), speed control (HIGH /MEDIUM/ LOW), breeze mode (running of fan at different speed in cyclic form with respect to time for n numbers of cycles till next command till next command), oscillation (ON/OFF), timer, sleep mode and light control. . A pedestal fan assembly (100), comprising:
a square base assembly (101);
a square stem assembly (102) having its bottom end attached to the base assembly (101);
a fan housing assembly (103) having a plurality of fan blades (207) driven by motor assembly (208) with an induction motor and a synchronous motor, wherein the plurality of fan blades (207) is encased in a square geometry front guard (209a) and square geometry back guard (209b) affix to each other through a guard ring, and the motor assembly (208) is encased in a cowl assembly (210);
a knuckle (104) to connect the fan housing assembly (203) with the top end of the square stem assembly (102); and
a tilting assembly (601) for tilting the fan housing assembly (103) in vertical angular direction.
The pedestal fan assembly as claimed in claim 10, wherein the tilting assembly (601) comprises:
a teeth tight profile gear (602);
a gear mechanism (603) provided on the knuckle (104) which is engaged with the teeth tight profile gear (602);

a pole holder (604) having its one end engaged with the slider pole (302) and other end engaged with the knuckle (104); and
a twisting knob (605) having its screw (606) end engaged with the knuckle (104) through the teeth tight gear profile (602), wherein applying force to the twisting knob (605) in the horizontal direction results in the angular displacement of the fan housing assembly (103) in vertical direction.
. The pedestal fan assembly (100) as claimed in claim 10, wherein the tilting assembly (601) performs continuous tilting at each and every angle from 15° to 30° degrees.
. A pedestal fan assembly (100), comprising:
a square base assembly (101);
a square stem assembly (102) having its bottom end attached to the base assembly (101);
a fan housing assembly (103) having a plurality of fan blades (207) driven by motor assembly (208) with an induction motor and a synchronous motor, wherein the plurality of fan blades (207) is encased in a square geometry front guard (209a) and square geometry back guard (209b) affix to each other through a guard ring and the motor assembly (208) is encased in a cowl assembly (210);
a knuckle (104) to connect the fan housing assembly (103) with the top end of the square stem assembly (102); and
an LED assembly provided in the square base assembly (101). . The pedestal fan assembly (100) as claimed in claim 13, wherein the LED assembly comprises:
a tuneable LED light (213) with multiple selected CCT / light intensity value for the human comfort at evening or night or at sleeping time; and

a diffuser (214) to diffuse the tuneable LED light.