Fan

This application claims the benefit under 35 U.S.C. § 119 (e) of U.S. Provisional Patent Application Ser. No. 63/648,070, filed on May 15, 2024, titled “FAN,” the entire contents of which are incorporated by reference herein.

The invention relates to a fan, and particularly, a fan having a slim profile and oscillating functionality to produce a compound airflow pattern comprising both a forward-projected and an upward-directed airflow component, achieved through internal geometry and ducting configurations.

Electrically powered fans are widely used in residential, commercial, and industrial settings to promote air circulation, improve thermal comfort, and facilitate cooling of spaces. These fans typically include a housing containing a motorized impeller or blower that draws in ambient air and expels it through a front outlet or grille. Common variants include table fans, floor-standing fans, pedestal fans, and tower fans, with directional airflow commonly achieved through pivoting heads, oscillation mechanisms, or manually adjustable louvers.

While traditional fans perform adequately for single-direction airflow projection, they are limited in their ability to simultaneously circulate air in multiple directions, particularly in a vertical direction without mechanical repositioning. Users often resort to manually tilting the fan head or adjusting movable louvers to direct airflow upward, which introduces mechanical complexity, requires user intervention, and can compromise the visual aesthetics or durability of the device. Additionally, such adjustable components are susceptible to mechanical wear over time and may introduce noise or looseness in operation.

Tower fans, while offering compact vertical profiles, often emit airflow in a horizontal plane and lack mechanisms to direct air vertically without reorientation. Attempts to achieve multidirectional airflow in existing designs typically involve active elements such as servo-controlled vents or multiple blower outputs, which increase cost, complexity, and power consumption. Furthermore, such designs often require additional space or compromise the uniformity and velocity of the emitted airflow.

There is therefore a need in the art for a fan that can produce both a forward airflow and an upward airflow component from a compact, fixed outlet without requiring mechanical redirection or adjustment by the user. Such a fan would ideally maintain a clean, vertically oriented profile suitable for modern aesthetic environments, while providing efficient multidirectional air distribution and minimizing component complexity.

The present invention addresses these and other shortcomings by introducing a fan configured with a uniquely engineered volute, internal duct geometry, and outlet configuration that together induce upward deflection of a portion of the airflow as it exits the outlet. This is accomplished without relying on any movable airflow-directing components and instead leverages passive aerodynamic principles such as the Coanda effect and pressure differentials within an elongated duct chamber. The result is a fan capable of delivering both forward and upward airflow simultaneously from a single outlet aperture, in a durable, reliable, and user-friendly package. Additional embodiments further provide oscillation, pivoting mechanisms, and modular support structures, offering enhanced customization of airflow behavior while maintaining a low profile and high design fidelity.

The present invention is directed at a fan configured to produce directional airflow through a vertically elongated outlet, with internal geometries specifically engineered to influence the path of airflow within the housing. More particularly, the invention relates to a fan that utilizes a strategically positioned blower housing and a uniquely contoured air duct chamber to facilitate and control the trajectory of airflow emitted through the fan's front-facing outlet.

In one example of the invention, the fan includes a fan housing having a main outlet formed along a front face of the housing. A blower assembly is positioned within the housing and comprises a blower and a motor configured to rotate the blower to generate airflow. The blower is at least partially enclosed by a blower housing (or volute), which defines a blower outlet positioned in a lower portion of the fan housing and rearward of the main outlet. An air duct chamber is defined between the blower outlet and the main outlet, and the air duct chamber includes an angled interior wall that extends upward from the blower outlet toward an upper portion of the main outlet. The geometric arrangement of these components enables a portion of the airflow to follow the angled wall and exit from the upper portion of the outlet.

In another example, the fan comprises a housing having a defined length, height, and width, and includes a vertically extending main outlet having a width that is less than half the width of the fan housing. The reduced width of the outlet compresses the outgoing airflow, increasing its velocity and directionality. A blower positioned within the housing includes one or more blades and a motor and is housed within a blower housing that includes a blower outlet. The blower outlet is positioned within a lower portion of the main outlet region to support both horizontal and vertical airflow profiles depending on internal duct configuration.

In another example, the air duct between the blower outlet and the main outlet includes an upwardly angled wall that extends greater than half the distance between the blower outlet and the main outlet. The extended angled wall creates a flow boundary that induces a portion of the airflow to follow an upward path due to aerodynamic effects, including the Coanda effect, thereby generating a compound airflow pattern comprising both forward and upward airflow components. The angled wall and outlet configuration allow for the redirection of airflow without the use of mechanical louvers, pivoting grilles, or other movable components.

Other devices, apparatus, systems, methods, features and advantages of the invention are or will become apparent to one with skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, and be within the scope of the invention, and be protected by the accompanying claims.

In this disclosure, all “aspects,” “examples,” “embodiments,” and “implementations” described are considered to be non-limiting and non-exclusive. Accordingly, the fact that a specific “aspect,” “example,” “embodiment,” or “implementation” is explicitly described herein does not exclude other “aspects,” “examples,” “embodiments,” and “implementations” from the scope of the present disclosure even if not explicitly described. In this disclosure, the terms “aspect,” “example,” “embodiment,” and “implementation” are used interchangeably, i.e., are considered to have interchangeable meanings.

Further, in this application, the terms “substantially,” “approximately,” or “about,” when modifying a specified numerical value, may be taken to encompass a range of values that include +/−10% of such numerical value. Further, terms such as “communicate,” and “in communication with,” or “interfaces” or “interfaces with” (for example, a first component “communicates with” or “is in communication with” a second component) are used herein to indicate a structural, functional, mechanical, electrical, signal, optical, magnetic, electromagnetic, ionic or fluidic relationship between two or more components or elements. As such, the fact that one component is said to communicate or interface with a second component is not intended to exclude the possibility that additional components may be present between, and/or operatively associated or engaged with, the first and second components.

For purposes of reference and description, the fan,of the present invention is considered to have a horizontal x-axis (x), vertical y-axis (y) and a width z-axis (z), as shown inalong which the components of the fan,are positioned relative to each other. Terms such as “axial” and “axially” are assumed to refer to the respective axis or any direction or axis parallel to the device axis, unless indicated otherwise or the context dictates otherwise. For convenience, movement relative to a device axis may alternatively encompass movement relative to an axis that is parallel to the device axis that is specifically illustrated in, unless the context dictates otherwise. Thus, linear translation “along the device axis z” is not limited to translation directly on (coincident with) the device axis, but also encompasses translation parallel to the device axis z, depending on the context. Similarly, rotation “about the device axis y” also encompasses rotation about an axis that is parallel to the device axis y, depending on the context.

Further, the fan of the present invention is also considered to have a height (h), length (l) and width (w), as also shown most notably shown by arrows in. It should be understood that the height (h), length (l) and width (w) directions also applies to all internal components of fan.

As illustrated and discussed in the following, examples of a fan that may pivot and oscillate is provided. In the example, the fan is a portable, free-standing fan. “Portable” being defined as having the ability to be carried or moved with ease. “Free standing” being defined as having the ability to remain stable and upright without external restraints. It should further be understood that the term “fan” may be interchangeably used with the terms “air blower, “air circulator” or any other term that refers to an apparatus that creates a current of air for cooling and/or heating.

As will be illustrated and discussed in detail below, the fan of the present invention incorporates the combination of a pivoting mechanism and oscillating mechanism. The pivoting mechanism allows the fan head to pivot along the vertical axis or y-axis of the fan relative to a support arm, and the oscillating mechanism allows the fan head to oscillate horizontally along the horizontal axis or x-axis relative to the fan base. Such combination allows for versatile adjustability and directional control. Additionally, unlike conventional fans, which primarily redirect the entire airflow direction by changing the fan's physical orientation, the present invention decouples airflow redirection from physical movement by generating a built-in upward airflow vector through internal structural design. In general, the present invention provides a fan housed in a slim, vertically elongated enclosure extending along the height (h) or y-axis that is engineered to produce a multidirectional airflow output—specifically, one that exhibits both straight-line airflow (i.e., airflow emitted along the x-axis) and an upwardly deflected airflow (i.e., airflow emitted along the y-axis)—without requiring any repositioning or reorientation of the fan housing, outlet grill, or any manually maneuverable flow-directing structures during use. This upward airflow is not the result of any active mechanism or externally adjustable louver but is instead generated passively via innovative internal ducting geometry, carefully placed blower outlet positioning, and aerodynamic flow channeling elements that cooperate to generate a rising airflow plume. This design provides seamless user experience and eliminates the need for mechanical tilt adjustments.

As shown in, one example of a fanof the present invention is illustrated. As shown in, fanincludes a fan housing or fan head housingconnected to a basevia a support armthat attached to the bottom of fan housing. Fan head housinghouses, in general, a blower assemblypositioned within an interior space of fan housingand that receives ambient air through air intake openings,for generating airflow. The frontal face of housingalso includes main outlet. Main outletis constructed as a vertically extending outlet slit extending along the height of fan. Main outletis dimensioned to be narrow in its width, while spanning a considerable vertical height. Main outletserves as the final exhaust path for the airflow generated internally by fan. The elongated shape and narrow width of main outletcontributes to forming a high-aspect-ratio airflow jet that not only projects air forward but facilitates controlled vertical shearing of the stream. This design enables a uniform distribution of air across an extended height range, thereby providing airflow across both seated and standing user positions.

Fanalso includes a controllerpositioned on the top side of fan housingfor controlling the various operations of fan. The controllerallows the user to toggle between fan speeds, oscillation modes, and power on/off states. In some examples, controllermay include capacitive touch inputs, LED indicators, or wireless communication modules for remote operation by remote controlor integration into smart home ecosystems.

Baseincludes one or more legsfor supporting fan to remain stable and upright without external restraints on a surface. Baseis defined by the portion of fanthat supports head housingabove a support surface. While one end of support armis may be fixedly or pivotally attached to fan head housing, the other end of support armmay be fixedly attached to basevia a platethat oscillates or rotates relative to basevia an oscillating or rotating mechanism positioned within base.

is a top view of fan.best illustrates the narrow width of main outlet, particularly in relation to the main body of fan housing. In particular, the width of main outletmay be half or less than half the width of the main body of fan housing. From the top view of fan, main outletis constructed as to be a funnel shape for guiding airflow generated in wider width of main body of fanand channeling and compressing airflow to the front narrow opening. This funnel shape, particularly with respect to its narrow width relative to the width of fan housing, effectively reduces the cross-sectional area through which the air is expelled, resulting in an increase in air velocity. This velocity increase caused by the narrow dimension of main outletis important not only for propulsion but for maximizing the Coanda adherence along the downstream wallof the internal air duct or air duct chamber. Such funnel construction in combination with further components of fandiscussed in greater detail below contributes to inducing the upward deflection of airflow when exiting fan.

is a left side internal view of the fan housingof fanthat specifically illustrates the horizontal and upward airflow (shown in arrows) of the air emitted from main outletof fan. As stated above, fan housinghouses blower assemblycomprising of blower, having one or more bladesand a motor. Specifically, blowermay be a high-RPM centrifugal blower having impeller or backward-inclined fan bladespowered by an electric motor. In operation, blowerreceives ambient air through air intake openings,, positioned at the lateral sides of housing, and imparts kinetic energy to the air, converting electrical energy into mechanical airflow. The airflow is then routed through blower housingwithin fan housing. Blower housingmay be a volute, which is a well-known term in the art that refers to a spiral or circular-shaped housing or casing having a curved or circular wallthat surrounds blower. The term “blower housing” may be used interchangeably with “volute” or “volute housing” or with any other term that refers to a housing or casing that surrounds a blower or centrifugal fan.

Blower housing or volute'sprimary function is to collect and direct airflow generated by the rotating blowerand convert some of the dynamic (velocity) energy of the air into static pressure. Volutedischarges air through blower outlet/opening or volute outlet/opening. Blower opening or volute openingmay include an outlet grillthat extends along the height of volute openingand acts as a protective cover of volute openingfor protecting volutefrom external objects entering volute. Importantly, volute opening or outletis positioned back from main outlet, thereby creating an air duct chamber or cavitytherebetween, creating a zone of compression that is fundamental to the upward airflow feature of the present invention. In other words, the volute opening or outletmay also serve to be the inlet for air duct. This spatial displacement between the volute openingand main outletintroduces a transitional air duct chamberwhere air behavior can be shaped and influenced by geometric surfaces before final discharge.

Air ductis defined as the area between blower or volute outletand main outletand may at least partially be defined by wall. Wallis a flat surface that may extend between the top of volute opening(or top of outlet grill) to main outletat an angle greater than 0 degrees from the dimensional length (l) of fanbut lesser than 90 degrees from dimensional length (l) of fan. In one example, wallmay extend at least greater than half the length (l) of air duct. This extended length of wallin combination with its upward angle relative to the dimensional length (l) of fanis critical to inducing upward deflection of the airflow. In particular, wallmust be of sufficient length (e.g., at least greater than half the length of air ductas stated above) in order to maximize airflow adherence for redirecting airflow upward from main outlet. Additionally, wallis angled obliquely and may incorporate a smooth surface for aerodynamic profiling to facilitate attachment or adherence of the airflow flowing through air ductalong the wall surface—a behavior governed by the Coanda effect. The Coanda effect causes the airflow, particularly at higher velocities, to adhere to and follow the contour of a nearby surface. In the present case, as the high-velocity air exits volute openingor outlet grilland enters the air duct chamber, a portion of the air adheres to the angled upper surface of walland is thus directed upward before exiting the upper portion or top portion of main outlet, thereby creating a distinct and purposeful upward air flow. Simultaneously, the remaining portion of the airflow exits through the lower or bottom portion of main opening, preserving a straight-through airflow path. The interface between the volute chamberand the inclined wallserves as a bifurcation pointwhere the airflow naturally divides due to pressure gradients, velocity profiles, and boundary layer effects, thus creating two flow vectors without mechanical intervention. The result is a compound airflow field: a base layer of horizontal or forward-directed air (shown by horizontal arrows in), and an upper stream of air with a pronounced upward vector (shown by upward direction arrows in). This dual-path airflow characteristic creates a rising plume of air that provides vertical circulation without any moving parts beyond the blower fan itself.

The above construction yields an effect functionally analogous to manual tilting of conventional fans but achieves this entirely through fixed geometry and airflow conditioning. Unlike conventional fans with pivotable heads, gimbals, or adjustable louvers, which require user interaction and introducing potential failure points, the present fan achieves continuous upward airflow in a passive, durable, and aesthetically minimalist configuration.

Additionally, airflow simulations and physical testing demonstrate that positioning volute openingor outlet grillat a lower elevation or height (h) relative to main outletproduces a region of relatively lower pressure in the air duct area between the top of volute opening(or top of outlet grill) and top of main outlet, which draws air upward as it travels through air duct. This pressure differential contributes to the vertical vectoring of the airflow. The narrow funnel shape of main outletalso creates a nozzle or compression effect that accelerates the airflow, promoting entrainment of ambient air from the surrounding environment and amplifying the upward flow component through induced drag and lift interactions.

In other examples, wallmay extend between the top of volute opening(or top of outlet grill) to a vertical wall(which extends along the height (h) of fan) that is positioned slightly back or rearward of main outlet. Vertical wallmay be used as a storage for remote control. In one example, wallmay further comprise an inset or cradle contour to securely retain remote controlagainst accidental dislodgment. In another example, magnet or other ferromagnetic materialmay be positioned on wallfor allowing remote controlto removably magnetically attach to fanfor storage purposes. This magnetic coupling provides a seamless and intuitive method for users to stow and retrieve the remote control, improving usability and product integration. The placement of the walladjacent to the airflow path is also configured such that it does not interfere with airflow dynamics or turbulence patterns within air duct.

is a front view of fan.illustrates the height (h) and width (w) of main outletrelative to the height (h) and width (w) of volute opening(or outlet grill) and wall portions,. In particular, volute openingand/or outlet grillis positioned substantially within the lower or bottom portion of air ductor lower or bottom portion of main outlet, while wall portions,is positioned substantially within the top or upper portion of air ductor top or upper of main outlet. In some examples, volute openingand/or outlet grillis positioned in the bottom half of the height of air ductor main outlet, while wall portions,is positioned in the top half of the height of air ductor main outlet. As stated above, volute openingand/or outlet grillare located substantially in the bottom portion of air ductor main outletsuch that a vertical distance exists between the top edge of volute openingand/or grill outletand the top edge of air ductand/or main outlet. The air duct chamberand/or main outletthus comprises two distinct segments: a lower segment directly aligned with the volute openingand/or outlet grill, where the airflow exits with a primarily horizontal direction (shown by horizontal arrows in), and an upper segment above the volute openingand/or outlet grill, which acts as a redirection air duct chamber, where the airflow exits with a primarily vertical uplift direction (shown by upward direction arrows in).

As mentioned above, the air duct chamber is dimensioned to form a tapering or funneling channel from the volute openingand/or outlet grillto the main outlet. This tapering or funnel construction promotes further acceleration and redirection of the airflow. Optionally, flow vanes or guide ribs (not shown) may be integrally molded into the inner cavity surfaces of air ductto stabilize flow and reduce turbulence. These vanes may be angled similar to angled wallto further enhance vertical airflow without materially affecting the horizontal airflow.

Given the above, the upward airflow behavior created by the present invention may be tuned by modifying one or more parameters, including but not limited to: the vertical spacing between the top edge of volute openingand/or grill outletand the top edge of air ductand/or main outlet; the angle of wallof air duct; the pressure output of blower; depth of air ductbetween volute openingand/or outlet grilland main outlet; and the taper or funnel construction of air ductfrom the volute openingand/or outlet grillto the narrow main outlet. By selectively tuning these variables without departing from the scope of invention, the proportion of airflow that is redirected upward from main outletversus expelled straight outward from main outletcan be tailored. For example, a steeper angle of wallresults in a greater upward deflection vector, while increasing the air ductvolume promotes greater vertical entrainment and reduces backpressure losses. Similarly, narrowing the main outletcross-section increases exit velocity, which in turn enhances both reach and mixing of the upward jet with ambient air.

is a top internal view of the oscillating mechanism of fan. In particular,illustrates an oscillating mechanism positioned within basethat allows plateto rotate or oscillate relative to basealong a horizontal plane. The oscillating mechanism may comprise of at least a motor(such as a stepper motor), drive gear, and oscillation gear. Motorand drive gearare attached to platesuch that platemoves with the movement of motorand drive gear. Motoris in communication with drive gearsuch that motormechanically moves or rotates drive gearvia a motor shaft. The teeth of drive gearmeshes or engages with the teeth of oscillation gearsuch that drive geartranslates in an oscillating manner along the teeth of oscillation gear. Oscillation gearis attached to base. Oscillation gearmay be shaped to be a circular or semi-circular gear.

In operation, motorrotates drive gearsuch that it moves along the curvature of oscillation gear, which in turn moves, rotates or oscillates platerelative to base. In other words, drive gearand oscillation gearform a gear set that converts rotational movement of drive gearto a circular or semi-circular translation along the curvature of oscillation gear. Motormay move drive gearback and forth (i.e., oscillation) along the curvature of oscillation gear. The motormay be driven by a control signal generated by controller,and/or remote control, allowing for user-defined oscillation angles or automatic modes. The angular sweep and oscillation frequency may also be varied in program to suit different environmental or user comfort conditions, including fixed-point targeting or panoramic sweeping for whole-room circulation.

It should also be understood that while the curvature of oscillation gearis shown to extend nearly 360 degrees, the length of oscillation gearcan extend to any length between 0 and 360 degrees without departing from the scope of the invention. Therefore, the oscillating mechanism of the present invention may allow plateand fan head housingto oscillate between the ranges of 0 degrees and 90 degrees, 0 degrees and 180 degrees, or any degree range between 0 degrees and 360 degrees relative to base.

A sensor, such as a Hall sensor, may also be in communication or in signal communication with motorto control the direction of rotation of drive gearsuch that drive gearrotates clockwise and counterclockwise for moving back and forth on oscillation gearto create a swivel or oscillating motion. In other words, sensor, with or without magnet, may provide a signal to motorwhen drive gearhas reached an end of oscillation gearso that it may rotate in the opposite direction. In this manner, drive gear, and thus plateand fan head housing, may continuously oscillate or move between the two ends of oscillation gear. This sensor-triggered reversal ensures repeatable and bounded oscillation cycles and eliminates the need for mechanical stops or limit switches, enhancing long-term reliability. The Hall-effect sensorand magnetmay be placed in a non-contact orientation to avoid physical degradation, and multiple sensor configurations may be used to support different oscillation profiles or multi-zone control features in smart home environments.

is an exploded view of fan. In particular, fan housingcomprises of left and right housing cover,, left and right air intake openings,constructed as mesh screens, left and right intake opening retainers,for securing air intake openings,, and blower assemblycomprising of blower, blades, motorand motor cover. A controllerhaving a printed circuit board assembly (PCBA) user interfaceand PCBA controlsis positioned on the top side of fan. Fan housingfurther comprises PCBA powerwhich may be in communication with controllerand motors,. Also shown is main outletand outlet grillthat covers or protects volute opening. A remote controlmay also be provided that remotely controls the operations of fan. As stated above, remote control may be stored on fanby attaching to outer surface of wallvia magnet. The construction of fanshown in the exploded view enables straightforward assembly and/or disassembly for manufacturing, maintenance, or part replacement. The intake retainers,and mesh screens,serve the dual function of filtering large particulates and preventing accidental contact with internal rotating components. PCBA controls may include microcontrollers and drivers for managing power distribution, motor control logic, sensor input processing, and wireless communication for the remote interface. The integration of PCBA user interfaceon the top of the unit also provides ergonomic access for on-device adjustments.

The baseof fancomprises bottom capfor holding bottom oscillation coverwhich holds oscillation housing. Basefurther holds an oscillating mechanism comprising an oscillation plate, motor, drive gear, a bearing, an oscillation gearand sensorsand magnet. Basealso includes multiple legshaving feetfor support. The bottom capand oscillation covernot only provide aesthetic finishing and structural rigidity but also serve as protective enclosures for the moving gear components to shield them from dust ingress and user interference. Bearingensures low-friction, stable rotation of the oscillation plateand may be selected for noise attenuation. The base legsand feetare configured to provide wide-spread support that reduces tipping risk and enhances vibration damping during operation, especially at higher oscillation speeds or fan intensities. Additionally, the feetmay incorporate elastomeric pads or rubber dampers to grip smooth surfaces and minimize transmittance of operational noise to underlying furniture or flooring.

illustrate another example of a fanof the present invention. It should be understood that all features and functions and/or combination of features and functions incorporated in fanabove may also be incorporated in fanwithout departing from the scope of the invention. Similarly, all features and functions and/or combination of features and functions incorporated in fanmay also be incorporated in fan. Additionally, as will be understood from the following description and figures, many features and functions and/or combination of features and functions are incorporated in both fanand fan. The introduction of fanhighlights the modularity, scalability, and cross-compatibility of the inventive platform, demonstrating how the core principles of fancan be adapted across different design aesthetics and form factors.

As shown in, fanincludes a fan head or fan head housingconnected to a basevia a support arm. Fan head housinghouses, in general, a blower assemblypositioned within an interior space of head housingand that receives ambient air through air intake openings,for generating airflow. The frontal face of housingalso includes main outlet. Main outletis constructed as a vertically extending outlet extending along the height (h) of fan. Main outletis dimensioned to be narrow in its width (w), while spanning a considerable vertical height. The elongated shape and narrow width of main outletcontributes to forming a high-aspect-ratio airflow jet that projects air forward.

Fanalso includes a controllerpositioned on the top side of fan housingfor controlling the various operations of fan. The controllerallows the user to toggle between fan speeds, oscillation modes, and power on/off states. In some examples, controllermay include capacitive touch inputs, LED indicators, or wireless communication modules for remote operation by remote controlor integration into smart home ecosystems.

Unlike fan, baseis constructed as a singular circular base for supporting fanto remain stable and upright without external restraints on a surface. Baseis defined by the portion of the fanthat supports head housingabove a support surface.

One of the primary differences between fanand fanis support arm. In particular, a lateral side of head housing, such as the left side housing as shown in, is pivotally or rotatably attached or connected to one end of support armby a pivot joint. In the present example, one end of support arm is pivotally attached to the center of the mesh screen of air intake opening. By positioning support armsuch that it attaches to a lateral side of the fan head housing(as opposed to the bottom of the fan head housing as shown in fan), fan head housingmay pivot along the y-axis or height of fanor along a vertical plane. Such a pivoting mechanism of fan head housingrelative to support armallows adjustable vertical directional airflow along the height of fanor along a vertical y-axis of fan. In other words, the angle of the fan head housingcan be pivotally adjusted relative to support armfor adjusting the vertical directional airflow of the air stream. The pivoting attachment between support armand housingallows a user to manually adjust the pivoting angle of fan head housingto any desired angle. The pivoting mechanism may include but is not limited to, friction fit, magnets (or any ferromagnetic material), clips, or any combination thereof, to position fan headat various angles relative to support arm. In the present example, a friction fit pivoting mechanism is incorporated. While the present example shows the pivoting mechanism requiring manual engagement, in other examples, pivoting mechanism may include a motor for electrically pivoting fan head housingrelative to support arm, which can be controlled by controlsand/or remote controller. Additionally, it should be understood that while the figures show support armonly attaching or connecting to the left side of head housing, other examples of the present invention may have support armonly attaching or connecting to the right side of head housing.

In the present example, the fan head housingis cantilevered by support arm. A cantilever, which is a term well known in the art, is a rigid structural element that is supported at only one end. Traditional fans typically incorporate at least two arms or at least two points of attachment for supporting a fan head or fan head housing. By using only one support armor only one point of attachment and cantilevering the fan head housingon support arm, material usage is greatly minimized, which in turn limits the weight, which is particularly pivotal for a fan that has added weight from the incorporation of pivoting and oscillating mechanism components.

While one end of support armis pivotally attached to fan head housing, the other endof support armoscillates relative to basevia an oscillating or rotating mechanism. Such oscillating mechanism may be the same and include the same components as shown and described above in fan. It should also be understood that support armmay be incorporated or interchanged with support armto allow for pivoting of fan head housing.

is a top view of fan. While the width of main outletis channeled to be shorter than the width of the main body of fan housing, the width of main outletis still greater than half the width of the main body of fan housing. This dimensional size difference can be compared to fan, where the width of main outletis half or less than half the width of the main body of fan housing. Unlike fan, such construction in fanin combination with further components of fandiscussed in greater detail below, contributes to inducing almost exclusively horizontal airflow as shown by the arrows in. In other words, given the construction of fan, fanwill not induce the upward deflection of airflow in the same manner or to the same degree as fan. The broader outlet cross-section distributes airflow more laterally and reduces the likelihood of adherence to any internal Coanda-inducing surfaces.

is a left side internal view of the fan housingof fanthat specifically illustrates the horizontal airflow (shown in arrows) of the air emitted from main outletof fan. As stated above, fan housinghouses blower assemblycomprising of blower, having one or more bladesand a motor. In operation, blowerreceives ambient air through an air intake openings,, positioned at the lateral sides of housing, and imparts kinetic energy to the air, converting electrical energy into mechanical airflow. The airflow is then routed through a blower housingwithin fan housing. Blower housingmay be a volute having a curved or circular wallthat surrounds blower. Volutedischarges air through blower housing opening or volute opening. Blower housing opening or volute openingmay include an outlet grillthat extends along the height of volute openingand acts as a protective cover of volute openingfor protecting volutefrom external objects entering volute. The reduced spacing between openingand main outletminimizes transitional shaping of the airstream, leading to a more straightforward flow path. This results in a flatter airflow profile with minimally induced uplift.

When compared to fan, volute opening or outletis not positioned as back from main outlet. Therefore, the size of air duct chamber or cavity that is formed between openingor outlet grilland main outletis smaller than air duct. Additionally, unlike fan, walldoes not extend at least greater than half the length (l) of the air duct in fan. Therefore, unlike fan, this construction of fanwill not induce an upward deflection of airflow in the same manner or to the same degree as fan. Rather, fanwill induce almost exclusively horizontal airflow as shown by the arrows in.

Additionally, similar to fan, vertical wallmay be used as a storage for remote control.

is a front view of fan.illustrates volute openingpositioned substantially within the lower or bottom portion of the air duct or lower or bottom portion of main outlet, while wall portions,is positioned substantially within the top or upper portion of the air duct or top or upper portion of main outlet. While this vertical spacing positioning of volute openingrelative to outletis similar to fan, the resultant direction of airflow emitted from outletwill be different due to the internal construction of fanas described above. In particular, when compared to fan, fanincludes a shorter depth of its air duct, a shorter length of wall, less drastic taper or funnel construction from the volute openingto main outlet, and wider main outlet. The above differences in construction between fanand fanall contribute, in combination or in one or more combinations, to the direction of airflow being expelled straight outward from main outletcompared to being redirected upward from main outlet. While some airflow in fanwill naturally flow in the upward direction due to variety of factors, including but not limited to pressure differential with ambient air, fanwill not induce the upward deflection of airflow in the same manner or to the same degree as fan. The side-by-side comparison underscores how duct geometry and outlet positioning alter airflow behavior.

is an exploded view of the fan of. In particular, fan housingcomprises of left and right housing cover,, left and right air intake openings,constructed as mesh screens, and blower assemblycomprising of blower, blades, motorand motor mount. A controllerhaving a printed circuit board assembly (PCBA) user interface and PCBA controls is positioned on the top side of fan. Fan housingfurther comprises PCBA powerwhich may be in communication with controllerand motors(blower motor) and(stepper motor). A remote controlmay also be provided for remotely controlling the operations of fan. As stated above, remote controlmay be stored on fanby attaching to outer surface of wallvia a magnet or other ferromagnetic material. The pivoting end of support armof fanincludes pivot plate, friction ring, and pivot housing.