US20100226749A1 - Fan assembly - Google Patents

Fan assembly Download PDF

Info

Publication number
US20100226749A1
US20100226749A1 US12/716,515 US71651510A US2010226749A1 US 20100226749 A1 US20100226749 A1 US 20100226749A1 US 71651510 A US71651510 A US 71651510A US 2010226749 A1 US2010226749 A1 US 2010226749A1
Authority
US
United States
Prior art keywords
fan assembly
nozzle
air flow
mouth
duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/716,515
Other languages
English (en)
Inventor
Peter David Gammack
James Dyson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dyson Technology Ltd
Original Assignee
Dyson Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dyson Technology Ltd filed Critical Dyson Technology Ltd
Assigned to DYSON TECHNOLOGY LIMITED reassignment DYSON TECHNOLOGY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DYSON, JAMES, GAMMACK, PETER DAVID
Publication of US20100226749A1 publication Critical patent/US20100226749A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • the present invention relates to a fan assembly.
  • the present invention relates to a domestic fan, such as a pedestal fan, for creating an air current in a room, office or other domestic environment.
  • a conventional domestic fan typically includes a set of blades or vanes mounted for rotation about an axis, and drive apparatus for rotating the set of blades to generate an air flow.
  • the movement and circulation of the air flow creates a ‘wind chill’ or breeze and, as a result, the user experiences a cooling effect as heat is dissipated through convection and evaporation.
  • a ceiling fan can be at least 1 m in diameter, and is usually mounted in a suspended manner from the ceiling to provide a downward flow of air to cool a room.
  • desk fans are often around 30 cm in diameter, and are usually free standing and portable.
  • Floor-standing pedestal fans generally comprise a height adjustable pedestal supporting the drive apparatus and the set of blades for generating an air flow, usually in the range from 300 to 500 l/s.
  • a disadvantage of this type of arrangement is that the air flow produced by the rotating blades of the fan is generally not uniform. This is due to variations across the blade surface or across the outward facing surface of the fan. The extent of these variations can vary from product to product and even from one individual fan machine to another. These variations result in the generation of an uneven or ‘choppy’ air flow which can be felt as a series of pulses of air and which can be uncomfortable for a user.
  • Pedestal fans tend to have a cage surrounding the blades to prevent injury from contact with the rotating blades, but such caged parts can be difficult to clean. Furthermore, due to the mounting of the drive apparatus and the rotary blades on the top of the pedestal, the centre of gravity of a pedestal fan is usually located towards the top of the pedestal. This can render the pedestal fan prone to falling if accidentally knocked unless the pedestal is provided with a relatively wide or heavy base, which may be undesirable for a user.
  • the present invention provides a bladeless fan assembly comprising a nozzle and means for creating an air flow through the nozzle, the nozzle comprising an interior passage, a mouth for receiving the air flow from the interior passage, and a surface located adjacent the mouth and over which the mouth is arranged to direct the air flow, wherein the nozzle is mounted on a height adjustable pedestal.
  • a bladeless fan assembly Through use of a bladeless fan assembly an air current can be generated without the use of a bladed fan. In comparison to a bladed fan assembly, the bladeless fan assembly leads to a reduction in both moving parts and complexity. Furthermore, without the use of a bladed fan to project the air current from the fan assembly, a relatively uniform air current can be generated and guided into a room or towards a user. The air current can travel efficiently out from the nozzle, losing little energy and velocity to turbulence.
  • bladeless is used to describe a fan assembly in which air flow is emitted or projected forward from the fan assembly without the use of moving blades. Consequently, a bladeless fan assembly can be considered to have an output area, or emission zone, absent moving blades from which the air flow is directed towards a user or into a room.
  • the output area of the bladeless fan assembly may be supplied with a primary air flow generated by one of a variety of different sources, such as pumps, generators, motors or other fluid transfer devices, and which may include a rotating device such as a motor rotor and/or a bladed impeller for generating the air flow.
  • the generated primary air flow can pass from the room space or other environment outside the fan assembly through the telescopic duct to the nozzle, and then back out to the room space through the mouth of the nozzle.
  • a fan assembly as bladeless is not intended to extend to the description of the power source and components such as motors that are required for secondary fan functions.
  • secondary fan functions can include lighting, adjustment and oscillation of the fan assembly.
  • the shape of the nozzle of a fan assembly is not constrained by the requirement to include space for a bladed fan.
  • the nozzle surrounds the opening.
  • the nozzle may be an annular nozzle which preferably has a height in the range from 200 to 600 mm, more preferably in the range from 250 to 500 mm.
  • the mouth of the nozzle extends about the opening, and is preferably annular.
  • the nozzle preferably comprises an inner casing section and an outer casing section which define the mouth of the nozzle.
  • Each section is preferably formed from a respective annular member, but each section may be provided by a plurality of members connected together or otherwise assembled to form that section.
  • the outer casing section is preferably shaped so as to partially overlap the inner casing section. This can enable an outlet of the mouth to be defined between overlapping portions of the external surface of the inner casing section and the internal surface of the outer casing section of the nozzle.
  • the outlet is preferably in the form of a slot, preferably having a width in the range from 0.5 to 5 mm.
  • the nozzle may comprise a plurality of spacers for urging apart the overlapping portions of the inner casing section and the outer casing section of the nozzle. This can assist in maintaining a substantially uniform outlet width about the opening.
  • the spacers are preferably evenly spaced along the outlet.
  • the interior passage is preferably continuous, more preferably annular, and is preferably shaped to divide the air flow into two air streams which flow in opposite directions around the opening.
  • the interior passage is preferably also defined by the inner casing section and the outer casing section of the nozzle.
  • the fan assembly preferably comprises means for oscillating the nozzle so that the air current is swept over an arc, preferably in the range from 60 to 120°.
  • a base of the pedestal may comprise means for oscillating an upper part of the base, to which the nozzle is connected, relative to a lower part of the base.
  • the nozzle comprises a surface located adjacent the mouth and over which the mouth is arranged to direct the air flow emitted therefrom.
  • This surface is preferably a Coanda surface
  • the external surface of the inner casing section of the nozzle is preferably shaped to define the Coanda surface.
  • the Coanda surface preferably extends about the opening.
  • a Coanda surface is a type of surface over which fluid flow exiting an output orifice close to the surface exhibits the Coanda effect. The fluid tends to flow over the surface closely, almost ‘clinging to’ or ‘hugging’ the surface.
  • the Coanda effect is already a proven, well documented method of entrainment in which a primary air flow is directed over a Coanda surface.
  • an air flow created by the fan assembly enters the nozzle.
  • this air flow will be referred to as primary air flow.
  • the primary air flow is emitted from the mouth of the nozzle and passes over the Coanda surface.
  • the primary air flow entrains air surrounding the mouth of the nozzle, which acts as an air amplifier to supply both the primary air flow and the entrained air to the user.
  • the entrained air will be referred to here as a secondary air flow.
  • the secondary air flow is drawn from the room space, region or external environment surrounding the mouth of the nozzle and, by displacement, from other regions around the fan assembly, and passes predominantly through the opening defined by the nozzle.
  • the primary air flow directed over the Coanda surface combined with the entrained secondary air flow equates to a total air flow emitted or projected forward from the opening defined by the nozzle.
  • the entrainment of air surrounding the mouth of the nozzle is such that the primary air flow is amplified by at least five times, more preferably by at least ten times, while a smooth overall output is maintained.
  • the maximum air flow of the air current generated by the fan assembly is preferably in the range from 300 to 800 litres per second, more preferably in the range from 400 to 700 litres per second.
  • the nozzle comprises a diffuser surface located downstream of the Coanda surface.
  • the external surface of the inner casing section of the nozzle is preferably shaped to define the diffuser surface.
  • the nozzle is mounted on an adjustable pedestal.
  • the pedestal houses said means for creating an air flow so that the fan assembly has a compact appearance.
  • the pedestal may comprise a duct for conveying the air flow to the nozzle.
  • the pedestal may serve both to support the nozzle through which an air flow created by the fan assembly is emitted and to convey the created air flow to the nozzle.
  • the means for creating an air flow through the nozzle may be located towards the bottom of the pedestal, thereby lowering the centre of gravity of the fan assembly in comparison to prior art pedestal fans where a bladed fan and drive apparatus for the bladed fan are connected to the top of the pedestal and rendering the fan assembly less prone to falling over if knocked.
  • the pedestal comprises a base housing said means for creating an air flow, with the duct extending between the base and the nozzle.
  • the means for creating an air flow may be located within the duct.
  • the means for creating an air flow through the nozzle comprises an impeller, a motor for rotating the impeller, and a diffuser located downstream from the impeller.
  • the impeller is preferably a mixed flow impeller.
  • the motor is preferably a DC brushless motor to avoid frictional losses and carbon debris from the brushes used in a traditional brushed motor. Reducing carbon debris and emissions is advantageous in a clean or pollutant sensitive environment such as a hospital or around those with allergies. While induction motors, which are generally used in pedestal fans, also have no brushes, a DC brushless motor can provide a much wider range of operating speeds than an induction motor.
  • the diffuser may comprise a plurality of spiral vanes, resulting in the emission of a spiraling air flow from the diffuser.
  • the fan assembly preferably comprises means for guiding the air flow emitted from the diffuser into the duct. This can reduce conductance losses within the fan assembly.
  • the air flow guiding means preferably comprises a plurality of vanes each for guiding a respective portion of the air flow emitted from the diffuser towards the duct. These vanes may be located on the internal surface of an air guiding member mounted over the diffuser, and are preferably substantially evenly spaced.
  • the air flow guiding means may also comprise a plurality of radial vanes located at least partially within the duct, with each of the radial vanes adjoining a respective one of the plurality of vanes.
  • These radial vanes may define a plurality of axial or longitudinal channels within the duct which each receive a respective portion of the air flow from channels defined by the plurality of vanes. These portions of the air flow preferably merge together within the duct.
  • the duct may comprise a base mounted on the base of the pedestal, and a plurality of tubular members connected to the base of the duct.
  • the curved vanes may be located at least partially within the base of the duct.
  • the axial vanes may be located at least partially within means for connecting one of the tubular members to the base of the duct.
  • the connecting means may comprise an air pipe or other tubular member for receiving one of the tubular members.
  • FIG. 1 is a perspective view of a fan assembly, in which a telescopic duct of the fan assembly is in a fully extended configuration
  • FIG. 2 is another perspective view of the fan assembly of FIG. 1 , in which the telescopic duct of the fan assembly is in a retracted position;
  • FIG. 3 is a sectional view of the base of the pedestal of the fan assembly of FIG. 1 ;
  • FIG. 4 is an exploded view of the telescopic duct of the fan assembly of FIG. 1 ;
  • FIG. 5 is a side view of the duct of FIG. 4 in a fully extended configuration
  • FIG. 6 is a sectional view of the duct taken along line A-A in FIG. 5 ;
  • FIG. 7 is a sectional view of the duct taken along line B-B in FIG. 5 ;
  • FIG. 8 is a perspective view of the duct of FIG. 4 in a fully extended configuration, with part of the lower tubular member cut away;
  • FIG. 9 is an enlarged view of part of FIG. 8 , with various parts of the duct removed;
  • FIG. 10 is a side view of the duct of FIG. 4 in a retracted configuration
  • FIG. 11 is a sectional view of the duct taken along line C-C in FIG. 10 ;
  • FIG. 12 is an exploded view of the nozzle of the fan assembly of FIG. 1 ;
  • FIG. 13 is a front view of the nozzle of FIG. 12 ;
  • FIG. 14 is a sectional view of the nozzle, taken along line P-P in FIG. 13 ;
  • FIG. 15 is an enlarged view of area R indicated in FIG. 14 .
  • FIGS. 1 and 2 illustrate perspective views of an embodiment of a fan assembly 10 .
  • the fan assembly 10 is a bladeless fan assembly, and is in the form of a domestic pedestal fan comprising a height adjustable pedestal 12 and a nozzle 14 mounted on the pedestal 12 for emitting air from the fan assembly 10 .
  • the pedestal 12 comprises a floor-standing base 16 and a height-adjustable stand in the form of a telescopic duct 18 extending upwardly from the base 16 for conveying a primary air flow from the base 16 to the nozzle 14 .
  • the base 16 of the pedestal 12 comprises a substantially cylindrical motor casing portion 20 mounted on a substantially cylindrical lower casing portion 22 .
  • the motor casing portion 20 and the lower casing portion 22 preferably have substantially the same external diameter so that the external surface of the motor casing portion 20 is substantially flush with the external surface of the lower casing portion 22 .
  • the lower casing portion 22 is mounted optionally on a floor-standing, disc-shaped base plate 24 , and comprises a plurality of user-operable buttons 26 and a user-operable dial 28 for controlling the operation of the fan assembly 10 .
  • the base 16 further comprises a plurality of air inlets 30 , which in this embodiment are in the form of apertures formed in the motor casing portion 20 and through which a primary air flow is drawn into the base 16 from the external environment.
  • the base 16 of the pedestal 12 has a height in the range from 200 to 300 mm, and the motor casing portion 20 has a diameter in the range from 100 to 200 mm.
  • the base plate 24 preferably has a diameter in the range from 200 to 300 mm.
  • the telescopic duct 18 of the pedestal 12 is moveable between a fully extended configuration, as illustrated in FIG. 1 , and a retracted configuration, as illustrated in FIG. 2 .
  • the duct 18 comprises a substantially cylindrical base 32 mounted on the base 12 of the fan assembly 10 , an outer tubular member 34 which is connected to, and extends upwardly from, the base 32 , and an inner tubular member 36 which is located partially within the outer tubular member 34 .
  • a connector 37 connects the nozzle 14 to the open upper end of the inner tubular member 36 of the duct 18 .
  • the inner tubular member 36 is slidable relative to, and within, the outer tubular member 34 between a fully extended position, as illustrated in FIG. 1 , and a retracted position, as illustrated in FIG.
  • the fan assembly 10 When the inner tubular member 36 is in the fully extended position, the fan assembly 10 preferably has a height in the range from 1200 to 1600 mm, whereas when the inner tubular member 36 is in the retracted position, the fan assembly 10 preferably has a height in the range from 900 to 1300 mm.
  • the user may grasp an exposed portion of the inner tubular member 36 and slide the inner tubular member 36 in either an upward or a downward direction as desired so that nozzle 14 is at the desired vertical position.
  • the user When the inner tubular member 36 is in its retracted position, the user may grasp the connector 37 to pull the inner tubular member 36 upwards.
  • the nozzle 14 has an annular shape, extending about a central axis X to define an opening 38 .
  • the nozzle 14 comprises a mouth 40 located towards the rear of the nozzle 14 for emitting the primary air flow from the fan assembly 10 and through the opening 38 .
  • the mouth 40 extends about the opening 38 , and is preferably also annular.
  • the inner periphery of the nozzle 14 comprises a Coanda surface 42 located adjacent the mouth 40 and over which the mouth 40 directs the air emitted from the fan assembly 10 , a diffuser surface 44 located downstream of the Coanda surface 42 and a guide surface 46 located downstream of the diffuser surface 44 .
  • the diffuser surface 44 is arranged to taper away from the central axis X of the opening 38 in such a way so as to assist the flow of air emitted from the fan assembly 10 .
  • the angle subtended between the diffuser surface 44 and the central axis X of the opening 38 is in the range from 5 to 25°, and in this example is around 7°.
  • the guide surface 46 is arranged at an angle to the diffuser surface 44 to further assist the efficient delivery of a cooling air flow from the fan assembly 10 .
  • the guide surface 46 is preferably arranged substantially parallel to the central axis X of the opening 38 to present a substantially flat and substantially smooth face to the air flow emitted from the mouth 40 .
  • a visually appealing tapered surface 48 is located downstream from the guide surface 46 , terminating at a tip surface 50 lying substantially perpendicular to the central axis X of the opening 38 .
  • the angle subtended between the tapered surface 48 and the central axis X of the opening 38 is preferably around 45°.
  • the nozzle 14 has a height in the range from 400 to 600 mm.
  • FIG. 3 illustrates a sectional view through the base 16 of the pedestal 12 .
  • the lower casing portion 22 of the base 16 houses a controller, indicated generally at 52 , for controlling the operation of the fan assembly 10 in response to depression of the user operable buttons 26 shown in FIGS. 1 and 2 , and/or manipulation of the user operable dial 28 .
  • the lower casing portion 22 may optionally comprise a sensor 54 for receiving control signals from a remote control (not shown), and for conveying these control signals to the controller 52 . These control signals are preferably infrared signals.
  • the sensor 54 is located behind a window 55 through which the control signals enter the lower casing portion 22 of the base 16 .
  • a light emitting diode (not shown) may be provided for indicating whether the fan assembly 10 is in a stand-by mode.
  • the lower casing portion 22 also houses a mechanism, indicated generally at 56 , for oscillating the motor casing portion 20 of the base 16 relative to the lower casing portion 22 of the base 16 .
  • the oscillating mechanism 56 comprises a rotatable shaft 56 a which extends from the lower casing portion 22 into the motor casing portion 20 .
  • the shaft 56 a is supported within a sleeve 56 b connected to the lower casing portion 22 by bearings to allow the shaft 56 a to rotate relative to the sleeve 56 b .
  • the oscillating mechanism 56 also comprises a motor (not shown) located within the lower casing portion 22 which operates a crank arm mechanism, indicated generally at 56 d , which oscillates the base of the motor casing portion 20 relative to an upper portion of the lower casing portion 22 .
  • a crank arm mechanism indicated generally at 56 d , which oscillates the base of the motor casing portion 20 relative to an upper portion of the lower casing portion 22 .
  • Crack arm mechanisms for oscillating one part relative to another are generally well known, and so will not be described here.
  • each oscillation cycle of the motor casing portion 20 relative to the lower casing portion 22 is preferably between 60° and 120°, and in this embodiment is around 90°.
  • the oscillating mechanism 56 is arranged to perform around 3 to 5 oscillation cycles per minute.
  • a mains power cable 58 extends through an aperture formed in the lower casing portion 22 for supplying electrical power to the fan assembly 10 .
  • the motor casing portion 20 comprises a cylindrical grille 60 in which an array of apertures 62 is formed to provide the air inlets 30 of the base 16 of the pedestal 12 .
  • the motor casing portion 20 houses an impeller 64 for drawing the primary air flow through the apertures 62 and into the base 16 .
  • the impeller 64 is in the form of a mixed flow impeller.
  • the impeller 64 is connected to a rotary shaft 66 extending outwardly from a motor 68 .
  • the motor 68 is a DC brushless motor having a speed which is variable by the controller 52 in response to user manipulation of the dial 28 and/or a signal received from the remote control.
  • the maximum speed of the motor 68 is preferably in the range from 5,000 to 10,000 rpm.
  • the motor 68 is housed within a motor bucket comprising an upper portion 70 connected to a lower portion 72 .
  • the upper portion 70 of the motor bucket comprises a diffuser 74 in the form of a stationary disc having spiral blades.
  • the motor bucket is located within, and mounted on, a generally frusto-conical impeller housing 76 connected to the motor casing portion 20 .
  • the impeller 64 and the impeller housing 76 are shaped so that the impeller 64 is in close proximity to, but does not contact, the inner surface of the impeller housing 76 .
  • a substantially annular inlet member 78 is connected to the bottom of the impeller housing 76 for guiding the primary air flow into the impeller housing 76 .
  • the base 16 of the pedestal 12 further comprises silencing foam for reducing noise emissions from the base 16 .
  • the motor casing portion 20 of the base 16 comprises a first annular foam member 80 located beneath the grille 60 , and a second annular foam member 82 located between the impeller housing 76 and the inlet member 78 .
  • the telescopic duct 18 of the pedestal 12 will now be described in more detail with reference to FIGS. 4 to 11 .
  • the base 32 of the duct 18 comprises a substantially cylindrical side wall 102 and an annular upper surface 104 which is substantially orthogonal to, and preferably integral with, the side wall 102 .
  • the side wall 102 preferably has substantially the same external diameter as the motor casing portion 20 of the base 16 , and is shaped so that the external surface of the side wall 102 is substantially flush with the external surface of the motor casing portion 20 of the base 16 when the duct 18 is connected to the base 16 .
  • the base 32 further comprises a relatively short air pipe 106 extending upwardly from the upper surface 104 for conveying the primary air flow into the outer tubular member 34 of the duct 18 .
  • the air pipe 106 is preferably substantially co-axial with the side wall 102 , and has an external diameter which is slightly smaller than the internal diameter of the outer tubular member 34 of the duct 18 to enable the air pipe 106 to be fully inserted into the outer tubular member 34 of the duct 18 .
  • a plurality of axially-extending ribs 108 may be located on the outer surface of the air pipe 106 for forming an interference fit with the outer tubular member 34 of the duct 18 and thereby secure the outer tubular member 34 to the base 32 .
  • An annular sealing member 110 is located over the upper end of the air pipe 106 to form an air-tight seal between the outer tubular member 34 and the air pipe 106 .
  • the duct 18 comprises a domed air guiding member 114 for guiding the primary air flow emitted from the diffuser 74 into the air pipe 106 .
  • the air guiding member 114 has an open lower end 116 for receiving the primary air flow from the base 16 , and an open upper end 118 for conveying the primary air flow into the air pipe 106 .
  • the air guiding member 114 is housed within the base 32 of the duct 18 .
  • the air guiding member 114 is connected to the base 32 by means of co-operating snap-fit connectors 120 located on the base 32 and the air guiding member 114 .
  • a second annular sealing member 121 is located about the open upper end 118 for forming an air-tight sealing between the base 32 and the air guiding member 114 .
  • the air guiding member 114 is connected to the open upper end of the motor casing portion 20 of the base 16 , for example by means of co-operating snap-fit connectors 123 or screw-threaded connectors located on the air guiding member 114 and the motor casing portion 20 of the base 16 .
  • the air guiding member 114 serves to connect the duct 18 to the base 16 of the pedestal 12 .
  • a plurality of air guiding vanes 122 are located on the inner surface of the air guiding member 114 for guiding the spiraling air flow emitted from the diffuser 74 into the air pipe 106 .
  • the air guiding member 114 comprises seven air guiding vanes 122 which are evenly spaced about the inner surface of the air guiding member 114 .
  • the air guiding vanes 122 meet at the centre of the open upper end 118 of the air guiding member 114 , and thus define a plurality of air channels 124 within the air guiding member 114 each for guiding a respective portion of the primary air flow into the air pipe 106 .
  • seven radial air guiding vanes 126 are located within the air pipe 106 .
  • Each of these radial air guiding vanes 126 extends along substantially the entire length of the air pipe 126 , and adjoins a respective one of the air guiding vanes 122 when the air guiding member 114 is connected to the base 32 .
  • the radial air guiding vanes 126 thus define a plurality of axially-extending air channels 128 within the air pipe 106 which each receive a respective portion of the primary air flow from a respective one of the air channels 124 within the air guiding member 114 , and which convey that portion of the primary flow axially through the air pipe 106 and into the outer tubular member 34 of the duct 18 .
  • the base 32 and the air guiding member 114 of the duct 18 serve to convert the spiraling air flow emitted from the diffuser 74 into an axial air flow which passes through the outer tubular member 34 and the inner tubular member 36 to the nozzle 14 .
  • a third annular sealing member 129 may be provided for forming an air-tight seal between the air guiding member 114 and the base 32 of the duct 18 .
  • a cylindrical upper sleeve 130 is connected, for example using an adhesive or through an interference fit, to the inner surface of the upper portion of the outer tubular member 34 so that the upper end 132 of the upper sleeve 130 is level with the upper end 134 of the outer tubular member 34 .
  • the upper sleeve 130 has an internal diameter which is slightly greater than the external diameter of the inner tubular member 36 to allow the inner tubular member 36 to pass through the upper sleeve 130 .
  • a third annular sealing member 136 is located on the upper sleeve 130 for forming an air-tight seal with the inner tubular member 36 .
  • the third annular sealing member 136 comprises an annular lip 138 which engages the upper end 132 of the outer tubular member 34 to form an air-tight seal between the upper sleeve 130 and the outer tubular member 34 .
  • a cylindrical lower sleeve 140 is connected, for example using an adhesive or through an interference fit, to the outer surface of the lower portion of the inner tubular member 36 so that the lower end 142 of the inner tubular member 36 is located between the upper end 144 and the lower end 146 of the lower sleeve 140 .
  • the upper end 144 of the lower sleeve 140 has substantially the same external diameter as the lower end 148 of the upper sleeve 130 .
  • a mainspring 150 is coiled around an axle 152 which is rotatably supported between inwardly extending arms 154 of the lower sleeve 140 of the duct 18 , as illustrated in FIG. 7 .
  • the mainspring 150 comprises a steel strip which has a free end 156 fixedly located between the external surface of the upper sleeve 130 and the internal surface of the outer tubular member 34 . Consequently, the mainspring 150 is unwound from the axle 152 as the inner tubular member 36 is lowered from the fully extended position, as illustrated in FIGS. 5 and 6 , to the retracted position, as illustrated in FIGS. 10 and 11 .
  • the elastic energy stored within the mainspring 150 acts as a counter-weight for maintaining a user-selected position of the inner tubular member 36 relative to the outer tubular member 34 .
  • a spring-loaded, arcuate band 158 preferably formed from plastics material, located within an annular groove 160 extending circumferentially about the lower sleeve 140 .
  • the band 158 does not extend fully about the lower sleeve 140 , and so comprises two opposing ends 161 .
  • Each end 161 of the band 158 comprises a radially inner portion 161 a which is received within an aperture 162 formed in the lower sleeve 140 .
  • a compression spring 164 is located between the radially inner portions 161 a of the ends 161 of the band 158 to urge the external surface of the band 158 against the internal surface of the outer tubular member 34 , thereby increasing the frictional forces which resist movement of the inner tubular member 36 relative to the outer tubular member 34 .
  • the band 158 further comprises a grooved portion 166 , which in this embodiment is located opposite to the compression spring 164 , which defines an axially extending groove 167 on the external surface of the band 158 .
  • the groove 167 of the band 158 is located over a raised rib 168 which extends axially along the length of its internal surface of the outer tubular member 34 .
  • the groove 167 has substantially the same angular width and radial depth as the raised rib 168 to inhibit relative rotation between the inner tubular member 36 and the outer tubular member 34 .
  • the nozzle 14 of the fan assembly 10 will now be described with reference to FIGS. 12 to 15 .
  • the nozzle 14 comprises an annular outer casing section 200 connected to and extending about an annular inner casing section 202 .
  • Each of these sections may be formed from a plurality of connected parts, but in this embodiment each of the outer casing section 200 and the inner casing section 202 is formed from a respective, single moulded part.
  • the inner casing section 202 defines the central opening 38 of the nozzle 14 , and has an external peripheral surface 203 which is shaped to define the Coanda surface 42 , diffuser surface 44 , guide surface 46 and tapered surface 48 .
  • the outer casing section 200 and the inner casing section 202 together define an annular interior passage 204 of the nozzle 14 .
  • the interior passage 204 extends about the opening 38 .
  • the interior passage 204 is bounded by the internal peripheral surface 206 of the outer casing section 200 and the internal peripheral surface 208 of the inner casing section 202 .
  • the base of the outer casing section 200 comprises an aperture 210 .
  • the connector 37 which connects the nozzle 14 to the open upper end 170 of the inner tubular member 36 of the duct 18 comprises a tilting mechanism for tilting the nozzle 12 relative to the pedestal 14 .
  • the tilting mechanism comprises an upper member which is in the form of a plate 300 which is fixedly located within the aperture 210 .
  • the plate 300 may be integral with the outer casing section 200 .
  • the plate 300 comprises a circular aperture 302 through which the primary air flow enters the interior passage 204 from the telescopic duct 18 .
  • the connector 37 further comprises a lower member in the form of an air pipe 304 which is at least partially inserted through the open upper end 170 of the inner tubular member 36 .
  • This air pipe 304 has substantially the same internal diameter as the circular aperture 302 formed in the upper plate 300 of the connector 37 .
  • an annular sealing member may be provided for forming an air-tight seal between the inner surface of the inner tubular member 36 and the outer surface of the air pipe 304 , and inhibits the withdrawal of the air pipe 304 from the inner tubular member 36 .
  • the plate 300 is pivotably connected to the air pipe 304 using a series of connectors indicated generally at 306 in FIG. 12 and which are covered by end caps 308 .
  • a flexible hose 310 extends between the air pipe 304 and the plate 300 for conveying air therebetween.
  • the flexible hose 310 may be in the form of an annular bellows sealing element.
  • a first annular sealing member 312 forms an air-tight seal between the hose 310 and the air pipe 304
  • a second annular sealing member 314 forms an air-tight seal between the hose 310 and the plate 300 .
  • the force required to move the nozzle 12 depends on the tightness of the connection between the plate 300 and the air pipe 304 , and is preferably in the range from 2 to 4 N.
  • the nozzle 12 is preferably moveable within a range of ⁇ 10° from an untilted position, in which the axis X is substantially horizontal, to a fully tilted position. As the nozzle 12 is tilted relative to the pedestal 14 , the axis X is swept along a substantially vertical plane.
  • the mouth 40 of the nozzle 14 is located towards the rear of the nozzle 10 .
  • the mouth 40 is defined by overlapping, or facing, portions 212 , 214 of the internal peripheral surface 206 of the outer casing section 200 and the external peripheral surface 203 of the inner casing section 202 , respectively.
  • the mouth 40 is substantially annular and, as illustrated in FIG. 15 , has a substantially U-shaped cross-section when sectioned along a line passing diametrically through the nozzle 14 .
  • the overlapping portions 212 , 214 of the internal peripheral surface 206 of the outer casing section 200 and the external peripheral surface 203 of the inner casing section 202 are shaped so that the mouth 40 tapers towards an outlet 216 arranged to direct the primary flow over the Coanda surface 42 .
  • the outlet 216 is in the form of an annular slot, preferably having a relatively constant width in the range from 0.5 to 5 mm. In this example the outlet 216 has a width in the range from 0.5 to 1.5 mm.
  • Spacers may be spaced about the mouth 40 for urging apart the overlapping portions 212 , 214 of the internal peripheral surface 206 of the outer casing section 200 and the external peripheral surface 203 of the inner casing section 202 to maintain the width of the outlet 216 at the desired level.
  • These spacers may be integral with either the internal peripheral surface 206 of the outer casing section 200 or the external peripheral surface 203 of the inner casing section 202 .
  • the user depresses an appropriate one of the buttons 26 on the base 16 of the pedestal 12 , in response to which the controller 52 activates the motor 68 to rotate the impeller 64 .
  • the rotation of the impeller 64 causes a primary air flow to be drawn into the base 16 of the pedestal 12 through the apertures 62 of the grille 60 .
  • the primary air flow may be between 20 and 40 litres per second.
  • the primary air flow passes sequentially through the impeller housing 76 and the diffuser 74 .
  • the spiral form of the blades of the diffuser 74 causes the primary air flow to be exhausted from the diffuser 74 in the form of spiraling air flow.
  • the primary air flow enters the air guiding member 114 , wherein the curved air guiding vanes 122 divide the primary air flow into a plurality of portions, and guide each portion of the primary air flow into a respective one of the axially-extending air channels 128 within the air pipe 106 of the base 32 of the telescopic duct 18 .
  • the portions of the primary air flow merge into an axial air flow as they are emitted from the air pipe 106 .
  • the primary air flow passes upwards through the outer tubular member 34 and the inner tubular member 36 of the duct 18 , and through the connector 37 to enter the interior passage 86 of the nozzle 14 .
  • the primary air flow is divided into two air streams which pass in opposite directions around the central opening 38 of the nozzle 14 .
  • air enters the mouth 40 of the nozzle 14 .
  • the air flow into the mouth 40 is preferably substantially even about the opening 38 of the nozzle 14 .
  • the flow direction of the air stream is substantially reversed.
  • the air stream is constricted by the tapering section of the mouth 40 and emitted through the outlet 216 .
  • the primary air flow emitted from the mouth 40 is directed over the Coanda surface 42 of the nozzle 14 , causing a secondary air flow to be generated by the entrainment of air from the external environment, specifically from the region around the outlet 216 of the mouth 40 and from around the rear of the nozzle 14 .
  • This secondary air flow passes through the central opening 38 of the nozzle 14 , where it combines with the primary air flow to produce a total air flow, or air current, projected forward from the nozzle 14 .
  • the mass flow rate of the air current projected forward from the fan assembly 10 may be up to 400 litres per second, preferably up to 600 litres per second, and more preferably up to 800 litres per second, and the maximum speed of the air current may be in the range from 2.5 to 4.5 m/s.
  • the even distribution of the primary air flow along the mouth 40 of the nozzle 14 ensures that the air flow passes evenly over the diffuser surface 44 .
  • the diffuser surface 44 causes the mean speed of the air flow to be reduced by moving the air flow through a region of controlled expansion.
  • the relatively shallow angle of the diffuser surface 44 to the central axis X of the opening 38 allows the expansion of the air flow to occur gradually.
  • a harsh or rapid divergence would otherwise cause the air flow to become disrupted, generating vortices in the expansion region.
  • Such vortices can lead to an increase in turbulence and associated noise in the air flow which can be undesirable, particularly in a domestic product such as a fan.
  • the air flow projected forwards beyond the diffuser surface 44 can tend to continue to diverge.
  • the presence of the guide surface 46 extending substantially parallel to the central axis X of the opening 38 further converges the air flow. As a result, the air flow can travel efficiently out from the nozzle 14 , enabling the air flow can be experienced rapidly at a distance of several metres from the fan assembly 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Power Steering Mechanism (AREA)
  • Cookers (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Food-Manufacturing Devices (AREA)
US12/716,515 2009-03-04 2010-03-03 Fan assembly Abandoned US20100226749A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0903685.6 2009-03-04
GB0903685A GB2468325A (en) 2009-03-04 2009-03-04 Height adjustable fan with nozzle

Publications (1)

Publication Number Publication Date
US20100226749A1 true US20100226749A1 (en) 2010-09-09

Family

ID=40580581

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/716,515 Abandoned US20100226749A1 (en) 2009-03-04 2010-03-03 Fan assembly

Country Status (16)

Country Link
US (1) US20100226749A1 (fr)
EP (1) EP2271841B1 (fr)
JP (1) JP5068838B2 (fr)
KR (1) KR101311397B1 (fr)
CN (1) CN101825096B (fr)
AT (1) ATE513998T1 (fr)
AU (2) AU2010219492B2 (fr)
CA (1) CA2746723C (fr)
DK (1) DK2271841T3 (fr)
ES (1) ES2366943T3 (fr)
GB (1) GB2468325A (fr)
HK (1) HK1148045A1 (fr)
PL (1) PL2271841T3 (fr)
PT (1) PT2271841E (fr)
RU (1) RU2504694C2 (fr)
WO (1) WO2010100457A1 (fr)

Cited By (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090060710A1 (en) * 2007-09-04 2009-03-05 Dyson Technology Limited Fan
US20100226750A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226751A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226771A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100254800A1 (en) * 2008-09-23 2010-10-07 Dyson Technology Limited Fan
US8092166B2 (en) 2008-12-11 2012-01-10 Dyson Technology Limited Fan
CN102338133A (zh) * 2011-09-30 2012-02-01 东莞市旭尔美电器科技有限公司 一种无风叶风扇
US8197226B2 (en) 2009-03-04 2012-06-12 Dyson Technology Limited Fan assembly
US8246317B2 (en) 2009-03-04 2012-08-21 Dyson Technology Limited Fan assembly
US8356804B2 (en) 2009-03-04 2013-01-22 Dyson Technology Limited Humidifying apparatus
US8366403B2 (en) 2010-08-06 2013-02-05 Dyson Technology Limited Fan assembly
US8403640B2 (en) 2009-03-04 2013-03-26 Dyson Technology Limited Fan assembly
US8408869B2 (en) 2009-03-04 2013-04-02 Dyson Technology Limited Fan assembly
US8430624B2 (en) 2009-03-04 2013-04-30 Dyson Technology Limited Fan assembly
US8454322B2 (en) 2009-11-06 2013-06-04 Dyson Technology Limited Fan having a magnetically attached remote control
US8469658B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan
US8469660B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
EP2630374A1 (fr) * 2010-10-18 2013-08-28 Dyson Technology Limited Ensemble ventilateur
US8561935B2 (en) 2010-09-17 2013-10-22 Karl F. Milde, Jr. STOL and/or VTOL aircraft
US8613601B2 (en) 2009-03-04 2013-12-24 Dyson Technology Limited Fan assembly
US8734094B2 (en) 2010-08-06 2014-05-27 Dyson Technology Limited Fan assembly
US8770946B2 (en) 2010-03-23 2014-07-08 Dyson Technology Limited Accessory for a fan
US8873940B2 (en) 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited Fan
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US9011116B2 (en) 2010-05-27 2015-04-21 Dyson Technology Limited Device for blowing air by means of a nozzle assembly
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729374S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
US9127689B2 (en) 2009-03-04 2015-09-08 Dyson Technology Limited Fan assembly
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
USD746425S1 (en) 2013-01-18 2015-12-29 Dyson Technology Limited Humidifier
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9513028B2 (en) 2009-03-04 2016-12-06 Dyson Technology Limited Fan assembly
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus
US9732763B2 (en) 2012-07-11 2017-08-15 Dyson Technology Limited Fan assembly
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
US9745981B2 (en) 2011-11-11 2017-08-29 Dyson Technology Limited Fan assembly
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
WO2018058849A1 (fr) * 2016-09-28 2018-04-05 Fang Liu Aspirateur de fumée non propre
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US10094392B2 (en) 2011-11-24 2018-10-09 Dyson Technology Limited Fan assembly
US10100836B2 (en) 2010-10-13 2018-10-16 Dyson Technology Limited Fan assembly
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
US10408478B2 (en) 2012-03-06 2019-09-10 Dyson Technology Limited Humidifying apparatus
US10428837B2 (en) 2012-05-16 2019-10-01 Dyson Technology Limited Fan
US10465928B2 (en) 2012-03-06 2019-11-05 Dyson Technology Limited Humidifying apparatus
CN110493689A (zh) * 2019-08-23 2019-11-22 胡振强 无叶风扇音响
US10612565B2 (en) 2013-01-29 2020-04-07 Dyson Technology Limited Fan assembly
WO2020194184A1 (fr) * 2019-03-26 2020-10-01 S.I.P.A. Societa' Industrializzazione Progettazione E Automazione S.P.A. Appareil de refroidissement de préformes
US11378100B2 (en) 2020-11-30 2022-07-05 E. Mishan & Sons, Inc. Oscillating portable fan with removable grille
US11384956B2 (en) 2017-05-22 2022-07-12 Sharkninja Operating Llc Modular fan assembly with articulating nozzle

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994714A (zh) * 2010-12-20 2011-03-30 徐伟 一种移动式无叶风扇
KR101229109B1 (ko) 2011-01-21 2013-02-05 (주)엠파워텍 헤어 드라이어
CN102141048A (zh) * 2011-04-29 2011-08-03 美的集团有限公司 一种风扇的摇头机构
CN102269459A (zh) * 2011-07-13 2011-12-07 上海腾邦环境科技有限公司 移动式喷雾机组
CN103133431B (zh) * 2011-08-15 2015-07-22 李耀强 无叶风扇的空气增压装置
CN202228444U (zh) * 2011-08-23 2012-05-23 曹珂 一种具有隐蔽进风口的无叶风扇
CN103362875A (zh) * 2012-04-07 2013-10-23 任文华 风扇及其喷嘴
CN103375445A (zh) * 2012-04-28 2013-10-30 任文华 风扇以及用于风扇的台架
CN102777405A (zh) * 2012-07-19 2012-11-14 罗赟 一种红外无扇叶风扇
CN102878113A (zh) * 2012-10-30 2013-01-16 李起武 一种风扇
CN102889239A (zh) * 2012-11-02 2013-01-23 李起武 一种风扇
CN104879308B (zh) * 2014-06-30 2018-01-30 广东美的环境电器制造有限公司 风扇
CN104154014A (zh) * 2014-07-14 2014-11-19 无锡市崇安区科技创业服务中心 一种电风扇
CN104807080B (zh) * 2014-08-29 2017-08-01 青岛海尔空调器有限总公司 一种壁挂式空调器室内机
CN104863829B (zh) * 2015-02-03 2017-07-28 广东美的环境电器制造有限公司 无叶风扇的俯仰结构及无叶风扇
CN106286331A (zh) * 2015-05-22 2017-01-04 王永平 一种景观式无叶风扇
CN104832443B (zh) * 2015-05-25 2017-05-24 广东美的环境电器制造有限公司 风扇
US11781763B2 (en) 2020-01-13 2023-10-10 Johnson Controls Tyco IP Holdings LLP Air flow amplifier for HVAC system
KR20230075100A (ko) 2021-11-22 2023-05-31 코웨이 주식회사 공기 송풍기

Citations (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2035733A (en) * 1935-06-10 1936-03-31 Marathon Electric Mfg Fan motor mounting
US2071266A (en) * 1935-10-31 1937-02-16 Continental Can Co Lock top metal container
US2476002A (en) * 1946-01-12 1949-07-12 Edward A Stalker Rotating wing
US2488467A (en) * 1947-09-12 1949-11-15 Lisio Salvatore De Motor-driven fan
US2746673A (en) * 1954-10-25 1956-05-22 Collins Aubrey Lawrence Oscillating and like mechanism for electric fans
US2922277A (en) * 1955-11-29 1960-01-26 Bertin & Cie Device for increasing the momentum of a fluid especially applicable as a lifting or propulsion device
US3047208A (en) * 1956-09-13 1962-07-31 Sebac Nouvelle Sa Device for imparting movement to gases
US3518776A (en) * 1967-06-03 1970-07-07 Bremshey & Co Blower,particularly for hair-drying,laundry-drying or the like
US3729934A (en) * 1970-11-19 1973-05-01 Secr Defence Brit Gas turbine engines
US3743186A (en) * 1972-03-14 1973-07-03 Src Lab Air gun
US3795367A (en) * 1973-04-05 1974-03-05 Src Lab Fluid device using coanda effect
US3872916A (en) * 1973-04-05 1975-03-25 Int Harvester Co Fan shroud exit structure
US3875745A (en) * 1973-09-10 1975-04-08 Wagner Minning Equipment Inc Venturi exhaust cooler
US3943329A (en) * 1974-05-17 1976-03-09 Clairol Incorporated Hair dryer with safety guard air outlet nozzle
US4037991A (en) * 1973-07-26 1977-07-26 The Plessey Company Limited Fluid-flow assisting devices
US4073613A (en) * 1974-06-25 1978-02-14 The British Petroleum Company Limited Flarestack Coanda burners with self-adjusting slot at pressure outlet
US4090814A (en) * 1975-02-12 1978-05-23 Institutul National Pentru Creatie Stiintifica Si Tehnica Gas-lift device
US4136735A (en) * 1975-01-24 1979-01-30 International Harvester Company Heat exchange apparatus including a toroidal-type radiator
US4184541A (en) * 1974-05-22 1980-01-22 International Harvester Company Heat exchange apparatus including a toroidal-type radiator
US4192461A (en) * 1976-11-01 1980-03-11 Arborg Ole J M Propelling nozzle for means of transport in air or water
JPS56167897A (en) * 1980-05-28 1981-12-23 Toshiba Corp Fan
US4332529A (en) * 1975-08-11 1982-06-01 Morton Alperin Jet diffuser ejector
US4336017A (en) * 1977-01-28 1982-06-22 The British Petroleum Company Limited Flare with inwardly directed Coanda nozzle
US4448354A (en) * 1982-07-23 1984-05-15 The United States Of America As Represented By The Secretary Of The Air Force Axisymmetric thrust augmenting ejector with discrete primary air slot nozzles
US4568243A (en) * 1981-10-08 1986-02-04 Barry Wright Corporation Vibration isolating seal for mounting fans and blowers
US4734017A (en) * 1986-08-07 1988-03-29 Levin Mark R Air blower
US4850804A (en) * 1986-07-07 1989-07-25 Tatung Company Of America, Inc. Portable electric fan having a universally adjustable mounting
US4856968A (en) * 1988-02-02 1989-08-15 Armbruster Joseph M Air circulation device
US4893990A (en) * 1987-10-07 1990-01-16 Matsushita Electric Industrial Co., Ltd. Mixed flow impeller
USD325435S (en) * 1990-09-24 1992-04-14 Vornado Air Circulation Systems, Inc. Fan support base
US5110266A (en) * 1989-03-01 1992-05-05 Hitachi, Ltd. Electric blower having improved return passage for discharged air flow
US5176856A (en) * 1991-01-14 1993-01-05 Tdk Corporation Ultrasonic wave nebulizer
US5296769A (en) * 1992-01-24 1994-03-22 Electrolux Corporation Air guide assembly for an electric motor and methods of making
US5310313A (en) * 1992-11-23 1994-05-10 Chen C H Swinging type of electric fan
US5312465A (en) * 1993-03-12 1994-05-17 Raine Riutta Filtration apparatus with bag-like plenum chamber
US5317815A (en) * 1993-06-15 1994-06-07 Hwang Shyh Jye Grille assembly for hair driers
US5402938A (en) * 1993-09-17 1995-04-04 Exair Corporation Fluid amplifier with improved operating range using tapered shim
US5407324A (en) * 1993-12-30 1995-04-18 Compaq Computer Corporation Side-vented axial fan and associated fabrication methods
GB2285504A (en) * 1993-12-09 1995-07-12 Alfred Slack Hot air distribution
US5435489A (en) * 1994-01-13 1995-07-25 Bell Helicopter Textron Inc. Engine exhaust gas deflection system
US5487766A (en) * 1994-05-24 1996-01-30 Vannier; Mervin R. Portable air filtration apparatus
US5497633A (en) * 1994-06-17 1996-03-12 Cool Zone Products & Promotions, Inc. Evaporative cooling unit
US5518370A (en) * 1995-04-03 1996-05-21 Duracraft Corporation Portable electric fan with swivel mount
US5538074A (en) * 1993-05-10 1996-07-23 Meyer; Friedhelm Heat exchanger, in particular cooling apparatus
US5645769A (en) * 1994-06-17 1997-07-08 Nippondenso Co., Ltd. Humidified cool wind system for vehicles
US5649370A (en) * 1996-03-22 1997-07-22 Russo; Paul Delivery system diffuser attachment for a hair dryer
US5735683A (en) * 1994-05-24 1998-04-07 E.E.T. Umwelt - & Gastechnik Gmbh Injector for injecting air into the combustion chamber of a torch burner and a torch burner
US5762661A (en) * 1992-01-31 1998-06-09 Kleinberger; Itamar C. Mist-refining humidification system having a multi-direction, mist migration path
US5762034A (en) * 1996-01-16 1998-06-09 Board Of Trustees Operating Michigan State University Cooling fan shroud
US5783117A (en) * 1997-01-09 1998-07-21 Hunter Fan Company Evaporative humidifier
US5862037A (en) * 1997-03-03 1999-01-19 Inclose Design, Inc. PC card for cooling a portable computer
US5868197A (en) * 1995-06-22 1999-02-09 Valeo Thermique Moteur Device for electrically connecting up a motor/fan unit for a motor vehicle heat exchanger
US6599088B2 (en) * 2001-09-27 2003-07-29 Borgwarner, Inc. Dynamically sealing ring fan shroud assembly
US20040049842A1 (en) * 2002-09-13 2004-03-18 Conair Cip, Inc. Remote control bath mat blower unit
US6709236B1 (en) * 1999-11-18 2004-03-23 Leybold Vakuum Gmbh High-speed turbo pump
US20040106370A1 (en) * 2002-12-03 2004-06-03 Takeshi Honda Air shower apparatus
US20050069407A1 (en) * 2003-07-15 2005-03-31 Ebm-Papst St. Georgen Gmbh & Co. Kg Fan mounting means and method of making the same
US20050128698A1 (en) * 2003-12-10 2005-06-16 Huang Cheng Y. Cooling fan
US20050163670A1 (en) * 2004-01-08 2005-07-28 Stephnie Alleyne Heat activated air freshener system utilizing auto cigarette lighter
US7059826B2 (en) * 2003-07-25 2006-06-13 Lasko Holdings, Inc. Multi-directional air circulating fan
US20070035189A1 (en) * 2001-01-16 2007-02-15 Minebea Co., Ltd. Axial fan motor and cooling unit
US20070041857A1 (en) * 2005-08-19 2007-02-22 Armin Fleig Fan housing with strain relief
US7192258B2 (en) * 2003-10-22 2007-03-20 Industrial Technology Research Institute Axial flow type cooling fan with shrouded blades
US20070065280A1 (en) * 2005-09-16 2007-03-22 Su-Tim Fok Blowing mechanism for column type electric fan
US7244179B2 (en) * 2005-02-04 2007-07-17 Hung-Chi Chien Suspension type oscillation mechanism
US20080020698A1 (en) * 2004-11-30 2008-01-24 Alessandro Spaggiari Ventilating System For Motor Vehicles
US20080124060A1 (en) * 2006-11-29 2008-05-29 Tianyu Gao PTC airflow heater
US20080152482A1 (en) * 2006-12-25 2008-06-26 Amish Patel Solar Powered Fan
US20080166224A1 (en) * 2007-01-09 2008-07-10 Steve Craig Giffin Blower housing for climate controlled systems
US7478993B2 (en) * 2006-03-27 2009-01-20 Valeo, Inc. Cooling fan using Coanda effect to reduce recirculation
US20090032130A1 (en) * 2007-08-02 2009-02-05 Elijah Dumas Fluid flow amplifier
US20090039805A1 (en) * 2007-08-07 2009-02-12 Tang Yung Yu Changeover device of pull cord control and wireless remote control for a dc brushless-motor ceiling fan
US20090120925A1 (en) * 2007-11-09 2009-05-14 Lasko Holdings, Inc. Heater with 360 degree rotation of heated air stream
US7540474B1 (en) * 2008-01-15 2009-06-02 Chuan-Pan Huang UV sterilizing humidifier
US20090191054A1 (en) * 2008-01-25 2009-07-30 Wolfgang Arno Winkler Fan unit having an axial fan with improved noise damping
US20090214341A1 (en) * 2008-02-25 2009-08-27 Trevor Craig Rotatable axial fan
US7660110B2 (en) * 2005-10-11 2010-02-09 Hewlett-Packard Development Company, L.P. Computer system with motor cooler
US7699580B2 (en) * 2002-12-18 2010-04-20 Lasko Holdings, Inc. Portable air moving device
US7731050B2 (en) * 2003-06-10 2010-06-08 Efficient Container Company Container and closure combination including spreading and lifting cams
US20100162011A1 (en) * 2008-12-22 2010-06-24 Samsung Electronics Co., Ltd. Method and apparatus for controlling interrupts in portable terminal
US20100171465A1 (en) * 2005-06-08 2010-07-08 Belkin International, Inc. Charging Station Configured To Provide Electrical Power to Electronic Devices And Method Therefor
US20100226764A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan
US20100226751A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226754A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20110164959A1 (en) * 2008-09-23 2011-07-07 Dyson Technology Limited Fan
US8092166B2 (en) * 2008-12-11 2012-01-10 Dyson Technology Limited Fan
US20120031509A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US20120033952A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US20120034108A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US8113490B2 (en) * 2009-09-27 2012-02-14 Hui-Chin Chen Wind-water ultrasonic humidifier
US20120039705A1 (en) * 2009-03-04 2012-02-16 Dyson Technology Limited Fan assembly
US20120057959A1 (en) * 2010-09-07 2012-03-08 Dyson Technology Limited Fan
US20120082561A1 (en) * 2009-03-04 2012-04-05 Dyson Technology Limited Fan assembly
US8152495B2 (en) * 2008-10-01 2012-04-10 Ametek, Inc. Peripheral discharge tube axial fan
US20120093630A1 (en) * 2010-10-18 2012-04-19 Dyson Technology Limited Fan assembly
US20120093629A1 (en) * 2010-10-18 2012-04-19 Dyson Technology Limited Fan assembly
US8167542B1 (en) * 2008-02-27 2012-05-01 Owusu Elijah A Centrifugal fan with 360 degree continuous rotation
US20130011252A1 (en) * 2009-03-04 2013-01-10 Dyson Technology Limited Fan assembly
US8356804B2 (en) * 2009-03-04 2013-01-22 Dyson Technology Limited Humidifying apparatus
US20130028766A1 (en) * 2011-07-27 2013-01-31 Dyson Technology Limited Fan assembly
US20130026664A1 (en) * 2011-07-27 2013-01-31 Dyson Technology Limited Fan assembly
US20130129490A1 (en) * 2011-11-11 2013-05-23 Dyson Technology Limited Fan assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832576A (en) * 1985-05-30 1989-05-23 Sanyo Electric Co., Ltd. Electric fan
JPS6421300U (fr) * 1987-07-27 1989-02-02
CN2251639Y (zh) * 1995-11-15 1997-04-09 黄进成 风扇的高度调整装置
CN2263729Y (zh) * 1996-05-09 1997-10-01 叶明昆 电风扇的高度调整装置
KR200159830Y1 (ko) * 1997-06-24 1999-11-01 강상근 스탠드식 선풍기지주의 높이조절장치
WO2005050026A1 (fr) 2003-11-18 2005-06-02 Distributed Thermal Systems Ltd. Ventilateur de chauffage a element de commande de debit integre

Patent Citations (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2035733A (en) * 1935-06-10 1936-03-31 Marathon Electric Mfg Fan motor mounting
US2071266A (en) * 1935-10-31 1937-02-16 Continental Can Co Lock top metal container
US2476002A (en) * 1946-01-12 1949-07-12 Edward A Stalker Rotating wing
US2488467A (en) * 1947-09-12 1949-11-15 Lisio Salvatore De Motor-driven fan
US2746673A (en) * 1954-10-25 1956-05-22 Collins Aubrey Lawrence Oscillating and like mechanism for electric fans
US2922277A (en) * 1955-11-29 1960-01-26 Bertin & Cie Device for increasing the momentum of a fluid especially applicable as a lifting or propulsion device
US3047208A (en) * 1956-09-13 1962-07-31 Sebac Nouvelle Sa Device for imparting movement to gases
US3518776A (en) * 1967-06-03 1970-07-07 Bremshey & Co Blower,particularly for hair-drying,laundry-drying or the like
US3729934A (en) * 1970-11-19 1973-05-01 Secr Defence Brit Gas turbine engines
US3743186A (en) * 1972-03-14 1973-07-03 Src Lab Air gun
US3795367A (en) * 1973-04-05 1974-03-05 Src Lab Fluid device using coanda effect
US3872916A (en) * 1973-04-05 1975-03-25 Int Harvester Co Fan shroud exit structure
US4037991A (en) * 1973-07-26 1977-07-26 The Plessey Company Limited Fluid-flow assisting devices
US3875745A (en) * 1973-09-10 1975-04-08 Wagner Minning Equipment Inc Venturi exhaust cooler
US3943329A (en) * 1974-05-17 1976-03-09 Clairol Incorporated Hair dryer with safety guard air outlet nozzle
US4184541A (en) * 1974-05-22 1980-01-22 International Harvester Company Heat exchange apparatus including a toroidal-type radiator
US4073613A (en) * 1974-06-25 1978-02-14 The British Petroleum Company Limited Flarestack Coanda burners with self-adjusting slot at pressure outlet
US4136735A (en) * 1975-01-24 1979-01-30 International Harvester Company Heat exchange apparatus including a toroidal-type radiator
US4090814A (en) * 1975-02-12 1978-05-23 Institutul National Pentru Creatie Stiintifica Si Tehnica Gas-lift device
US4332529A (en) * 1975-08-11 1982-06-01 Morton Alperin Jet diffuser ejector
US4192461A (en) * 1976-11-01 1980-03-11 Arborg Ole J M Propelling nozzle for means of transport in air or water
US4336017A (en) * 1977-01-28 1982-06-22 The British Petroleum Company Limited Flare with inwardly directed Coanda nozzle
JPS56167897A (en) * 1980-05-28 1981-12-23 Toshiba Corp Fan
US4568243A (en) * 1981-10-08 1986-02-04 Barry Wright Corporation Vibration isolating seal for mounting fans and blowers
US4448354A (en) * 1982-07-23 1984-05-15 The United States Of America As Represented By The Secretary Of The Air Force Axisymmetric thrust augmenting ejector with discrete primary air slot nozzles
US4850804A (en) * 1986-07-07 1989-07-25 Tatung Company Of America, Inc. Portable electric fan having a universally adjustable mounting
US4734017A (en) * 1986-08-07 1988-03-29 Levin Mark R Air blower
US4893990A (en) * 1987-10-07 1990-01-16 Matsushita Electric Industrial Co., Ltd. Mixed flow impeller
US4856968A (en) * 1988-02-02 1989-08-15 Armbruster Joseph M Air circulation device
US5110266A (en) * 1989-03-01 1992-05-05 Hitachi, Ltd. Electric blower having improved return passage for discharged air flow
USD325435S (en) * 1990-09-24 1992-04-14 Vornado Air Circulation Systems, Inc. Fan support base
US5176856A (en) * 1991-01-14 1993-01-05 Tdk Corporation Ultrasonic wave nebulizer
US5296769A (en) * 1992-01-24 1994-03-22 Electrolux Corporation Air guide assembly for an electric motor and methods of making
US5762661A (en) * 1992-01-31 1998-06-09 Kleinberger; Itamar C. Mist-refining humidification system having a multi-direction, mist migration path
US5310313A (en) * 1992-11-23 1994-05-10 Chen C H Swinging type of electric fan
US5312465A (en) * 1993-03-12 1994-05-17 Raine Riutta Filtration apparatus with bag-like plenum chamber
US5538074A (en) * 1993-05-10 1996-07-23 Meyer; Friedhelm Heat exchanger, in particular cooling apparatus
US5317815A (en) * 1993-06-15 1994-06-07 Hwang Shyh Jye Grille assembly for hair driers
US5402938A (en) * 1993-09-17 1995-04-04 Exair Corporation Fluid amplifier with improved operating range using tapered shim
GB2285504A (en) * 1993-12-09 1995-07-12 Alfred Slack Hot air distribution
US5407324A (en) * 1993-12-30 1995-04-18 Compaq Computer Corporation Side-vented axial fan and associated fabrication methods
US5435489A (en) * 1994-01-13 1995-07-25 Bell Helicopter Textron Inc. Engine exhaust gas deflection system
US5735683A (en) * 1994-05-24 1998-04-07 E.E.T. Umwelt - & Gastechnik Gmbh Injector for injecting air into the combustion chamber of a torch burner and a torch burner
US5487766A (en) * 1994-05-24 1996-01-30 Vannier; Mervin R. Portable air filtration apparatus
US5497633A (en) * 1994-06-17 1996-03-12 Cool Zone Products & Promotions, Inc. Evaporative cooling unit
US5598719A (en) * 1994-06-17 1997-02-04 Cz, Llc Evaporative cooling apparatus
US5645769A (en) * 1994-06-17 1997-07-08 Nippondenso Co., Ltd. Humidified cool wind system for vehicles
US5518370A (en) * 1995-04-03 1996-05-21 Duracraft Corporation Portable electric fan with swivel mount
US5868197A (en) * 1995-06-22 1999-02-09 Valeo Thermique Moteur Device for electrically connecting up a motor/fan unit for a motor vehicle heat exchanger
US5762034A (en) * 1996-01-16 1998-06-09 Board Of Trustees Operating Michigan State University Cooling fan shroud
US5649370A (en) * 1996-03-22 1997-07-22 Russo; Paul Delivery system diffuser attachment for a hair dryer
US5783117A (en) * 1997-01-09 1998-07-21 Hunter Fan Company Evaporative humidifier
US5862037A (en) * 1997-03-03 1999-01-19 Inclose Design, Inc. PC card for cooling a portable computer
US6709236B1 (en) * 1999-11-18 2004-03-23 Leybold Vakuum Gmbh High-speed turbo pump
US20070035189A1 (en) * 2001-01-16 2007-02-15 Minebea Co., Ltd. Axial fan motor and cooling unit
US6599088B2 (en) * 2001-09-27 2003-07-29 Borgwarner, Inc. Dynamically sealing ring fan shroud assembly
US20040049842A1 (en) * 2002-09-13 2004-03-18 Conair Cip, Inc. Remote control bath mat blower unit
US20040106370A1 (en) * 2002-12-03 2004-06-03 Takeshi Honda Air shower apparatus
US7699580B2 (en) * 2002-12-18 2010-04-20 Lasko Holdings, Inc. Portable air moving device
US7731050B2 (en) * 2003-06-10 2010-06-08 Efficient Container Company Container and closure combination including spreading and lifting cams
US20050069407A1 (en) * 2003-07-15 2005-03-31 Ebm-Papst St. Georgen Gmbh & Co. Kg Fan mounting means and method of making the same
US7059826B2 (en) * 2003-07-25 2006-06-13 Lasko Holdings, Inc. Multi-directional air circulating fan
US7192258B2 (en) * 2003-10-22 2007-03-20 Industrial Technology Research Institute Axial flow type cooling fan with shrouded blades
US20050128698A1 (en) * 2003-12-10 2005-06-16 Huang Cheng Y. Cooling fan
US20050163670A1 (en) * 2004-01-08 2005-07-28 Stephnie Alleyne Heat activated air freshener system utilizing auto cigarette lighter
US20080020698A1 (en) * 2004-11-30 2008-01-24 Alessandro Spaggiari Ventilating System For Motor Vehicles
US7244179B2 (en) * 2005-02-04 2007-07-17 Hung-Chi Chien Suspension type oscillation mechanism
US20100171465A1 (en) * 2005-06-08 2010-07-08 Belkin International, Inc. Charging Station Configured To Provide Electrical Power to Electronic Devices And Method Therefor
US20070041857A1 (en) * 2005-08-19 2007-02-22 Armin Fleig Fan housing with strain relief
US20070065280A1 (en) * 2005-09-16 2007-03-22 Su-Tim Fok Blowing mechanism for column type electric fan
US7660110B2 (en) * 2005-10-11 2010-02-09 Hewlett-Packard Development Company, L.P. Computer system with motor cooler
US7478993B2 (en) * 2006-03-27 2009-01-20 Valeo, Inc. Cooling fan using Coanda effect to reduce recirculation
US20080124060A1 (en) * 2006-11-29 2008-05-29 Tianyu Gao PTC airflow heater
US20080152482A1 (en) * 2006-12-25 2008-06-26 Amish Patel Solar Powered Fan
US20080166224A1 (en) * 2007-01-09 2008-07-10 Steve Craig Giffin Blower housing for climate controlled systems
US20090032130A1 (en) * 2007-08-02 2009-02-05 Elijah Dumas Fluid flow amplifier
US20090039805A1 (en) * 2007-08-07 2009-02-12 Tang Yung Yu Changeover device of pull cord control and wireless remote control for a dc brushless-motor ceiling fan
US20090120925A1 (en) * 2007-11-09 2009-05-14 Lasko Holdings, Inc. Heater with 360 degree rotation of heated air stream
US7540474B1 (en) * 2008-01-15 2009-06-02 Chuan-Pan Huang UV sterilizing humidifier
US20090191054A1 (en) * 2008-01-25 2009-07-30 Wolfgang Arno Winkler Fan unit having an axial fan with improved noise damping
US20090214341A1 (en) * 2008-02-25 2009-08-27 Trevor Craig Rotatable axial fan
US8167542B1 (en) * 2008-02-27 2012-05-01 Owusu Elijah A Centrifugal fan with 360 degree continuous rotation
US20110164959A1 (en) * 2008-09-23 2011-07-07 Dyson Technology Limited Fan
US8152495B2 (en) * 2008-10-01 2012-04-10 Ametek, Inc. Peripheral discharge tube axial fan
US8092166B2 (en) * 2008-12-11 2012-01-10 Dyson Technology Limited Fan
US20100162011A1 (en) * 2008-12-22 2010-06-24 Samsung Electronics Co., Ltd. Method and apparatus for controlling interrupts in portable terminal
US8356804B2 (en) * 2009-03-04 2013-01-22 Dyson Technology Limited Humidifying apparatus
US20130161842A1 (en) * 2009-03-04 2013-06-27 Dyson Technology Limited Humidifying apparatus
US20100226751A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226764A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan
US20120039705A1 (en) * 2009-03-04 2012-02-16 Dyson Technology Limited Fan assembly
US20120045316A1 (en) * 2009-03-04 2012-02-23 Dyson Technology Limited Fan assembly
US20130011252A1 (en) * 2009-03-04 2013-01-10 Dyson Technology Limited Fan assembly
US20120082561A1 (en) * 2009-03-04 2012-04-05 Dyson Technology Limited Fan assembly
US20100226754A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8113490B2 (en) * 2009-09-27 2012-02-14 Hui-Chin Chen Wind-water ultrasonic humidifier
US20120033952A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US20120034108A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US20120031509A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited Fan assembly
US20120057959A1 (en) * 2010-09-07 2012-03-08 Dyson Technology Limited Fan
US20120093629A1 (en) * 2010-10-18 2012-04-19 Dyson Technology Limited Fan assembly
US20120093630A1 (en) * 2010-10-18 2012-04-19 Dyson Technology Limited Fan assembly
US20130028766A1 (en) * 2011-07-27 2013-01-31 Dyson Technology Limited Fan assembly
US20130026664A1 (en) * 2011-07-27 2013-01-31 Dyson Technology Limited Fan assembly
US20130028763A1 (en) * 2011-07-27 2013-01-31 Dyson Technology Limited Fan assembly
US20130129490A1 (en) * 2011-11-11 2013-05-23 Dyson Technology Limited Fan assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 56168797 Translation *

Cited By (114)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8308445B2 (en) 2007-09-04 2012-11-13 Dyson Technology Limited Fan
US20090060711A1 (en) * 2007-09-04 2009-03-05 Dyson Technology Limited Fan
US9249810B2 (en) 2007-09-04 2016-02-02 Dyson Technology Limited Fan
US20090060710A1 (en) * 2007-09-04 2009-03-05 Dyson Technology Limited Fan
US8764412B2 (en) 2007-09-04 2014-07-01 Dyson Technology Limited Fan
US8403650B2 (en) 2007-09-04 2013-03-26 Dyson Technology Limited Fan
US20100254800A1 (en) * 2008-09-23 2010-10-07 Dyson Technology Limited Fan
US7931449B2 (en) 2008-09-23 2011-04-26 Dyson Technology Limited Fan
US8348629B2 (en) 2008-09-23 2013-01-08 Dyston Technology Limited Fan
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US10145388B2 (en) 2008-10-25 2018-12-04 Dyson Technology Limited Fan with a filter
US8092166B2 (en) 2008-12-11 2012-01-10 Dyson Technology Limited Fan
US8721286B2 (en) * 2009-03-04 2014-05-13 Dyson Technology Limited Fan assembly
US9127689B2 (en) 2009-03-04 2015-09-08 Dyson Technology Limited Fan assembly
US8246317B2 (en) 2009-03-04 2012-08-21 Dyson Technology Limited Fan assembly
US8197226B2 (en) 2009-03-04 2012-06-12 Dyson Technology Limited Fan assembly
US8348597B2 (en) 2009-03-04 2013-01-08 Dyson Technology Limited Fan assembly
US8348596B2 (en) 2009-03-04 2013-01-08 Dyson Technology Limited Fan assembly
US8356804B2 (en) 2009-03-04 2013-01-22 Dyson Technology Limited Humidifying apparatus
US9513028B2 (en) 2009-03-04 2016-12-06 Dyson Technology Limited Fan assembly
US8403640B2 (en) 2009-03-04 2013-03-26 Dyson Technology Limited Fan assembly
US9599368B2 (en) 2009-03-04 2017-03-21 Dyson Technology Limited Nozzle for bladeless fan assembly with heater
US8408869B2 (en) 2009-03-04 2013-04-02 Dyson Technology Limited Fan assembly
US8430624B2 (en) 2009-03-04 2013-04-30 Dyson Technology Limited Fan assembly
US20100226750A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8469658B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan
US8469655B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
US8469660B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
US20100226751A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8529203B2 (en) 2009-03-04 2013-09-10 Dyson Technology Limited Fan assembly
US8308432B2 (en) 2009-03-04 2012-11-13 Dyson Technology Limited Fan assembly
US8613601B2 (en) 2009-03-04 2013-12-24 Dyson Technology Limited Fan assembly
US8684687B2 (en) 2009-03-04 2014-04-01 Dyson Technology Limited Fan assembly
US8708650B2 (en) 2009-03-04 2014-04-29 Dyson Technology Limited Fan assembly
US8714937B2 (en) 2009-03-04 2014-05-06 Dyson Technology Limited Fan assembly
US20100226771A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US10006657B2 (en) 2009-03-04 2018-06-26 Dyson Technology Limited Fan assembly
US8052379B2 (en) 2009-03-04 2011-11-08 Dyson Technology Limited Fan assembly
US7972111B2 (en) 2009-03-04 2011-07-05 Dyson Technology Limited Fan assembly
US8784071B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Fan assembly
US8783663B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Humidifying apparatus
US8784049B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Fan
US10221860B2 (en) 2009-03-04 2019-03-05 Dyson Technology Limited Fan assembly
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US8454322B2 (en) 2009-11-06 2013-06-04 Dyson Technology Limited Fan having a magnetically attached remote control
US9004878B2 (en) 2009-11-06 2015-04-14 Dyson Technology Limited Fan having a magnetically attached remote control
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited Fan
US8770946B2 (en) 2010-03-23 2014-07-08 Dyson Technology Limited Accessory for a fan
US9011116B2 (en) 2010-05-27 2015-04-21 Dyson Technology Limited Device for blowing air by means of a nozzle assembly
US8873940B2 (en) 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US8366403B2 (en) 2010-08-06 2013-02-05 Dyson Technology Limited Fan assembly
US10344773B2 (en) 2010-08-06 2019-07-09 Dyson Technology Limited Fan assembly
US8734094B2 (en) 2010-08-06 2014-05-27 Dyson Technology Limited Fan assembly
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US9745988B2 (en) 2010-09-07 2017-08-29 Dyson Technology Limited Fan
US8561935B2 (en) 2010-09-17 2013-10-22 Karl F. Milde, Jr. STOL and/or VTOL aircraft
US10100836B2 (en) 2010-10-13 2018-10-16 Dyson Technology Limited Fan assembly
EP2630374A1 (fr) * 2010-10-18 2013-08-28 Dyson Technology Limited Ensemble ventilateur
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US8967980B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US10094581B2 (en) 2011-07-27 2018-10-09 Dyson Technology Limited Fan assembly
US9335064B2 (en) 2011-07-27 2016-05-10 Dyson Technology Limited Fan assembly
US9291361B2 (en) 2011-07-27 2016-03-22 Dyson Technology Limited Fan assembly
CN102338133A (zh) * 2011-09-30 2012-02-01 东莞市旭尔美电器科技有限公司 一种无风叶风扇
US9745981B2 (en) 2011-11-11 2017-08-29 Dyson Technology Limited Fan assembly
US10094392B2 (en) 2011-11-24 2018-10-09 Dyson Technology Limited Fan assembly
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
US10465928B2 (en) 2012-03-06 2019-11-05 Dyson Technology Limited Humidifying apparatus
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US10563875B2 (en) 2012-03-06 2020-02-18 Dyson Technology Limited Humidifying apparatus
US10408478B2 (en) 2012-03-06 2019-09-10 Dyson Technology Limited Humidifying apparatus
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
US10428837B2 (en) 2012-05-16 2019-10-01 Dyson Technology Limited Fan
US10309420B2 (en) 2012-05-16 2019-06-04 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9732763B2 (en) 2012-07-11 2017-08-15 Dyson Technology Limited Fan assembly
USD746425S1 (en) 2013-01-18 2015-12-29 Dyson Technology Limited Humidifier
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
US10612565B2 (en) 2013-01-29 2020-04-07 Dyson Technology Limited Fan assembly
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729374S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
WO2018058849A1 (fr) * 2016-09-28 2018-04-05 Fang Liu Aspirateur de fumée non propre
US11384956B2 (en) 2017-05-22 2022-07-12 Sharkninja Operating Llc Modular fan assembly with articulating nozzle
US11859857B2 (en) 2017-05-22 2024-01-02 Sharkninja Operating Llc Modular fan assembly with articulating nozzle
WO2020194184A1 (fr) * 2019-03-26 2020-10-01 S.I.P.A. Societa' Industrializzazione Progettazione E Automazione S.P.A. Appareil de refroidissement de préformes
CN110493689A (zh) * 2019-08-23 2019-11-22 胡振强 无叶风扇音响
US11378100B2 (en) 2020-11-30 2022-07-05 E. Mishan & Sons, Inc. Oscillating portable fan with removable grille

Also Published As

Publication number Publication date
CA2746723A1 (fr) 2010-09-10
EP2271841A1 (fr) 2011-01-12
AU2010101299C4 (en) 2012-04-19
HK1148045A1 (en) 2011-08-26
AU2010101299A4 (en) 2010-12-23
GB2468325A (en) 2010-09-08
ES2366943T3 (es) 2011-10-26
WO2010100457A1 (fr) 2010-09-10
AU2010219492A1 (en) 2010-09-10
GB0903685D0 (en) 2009-04-15
CA2746723C (fr) 2016-03-22
CN101825096B (zh) 2012-09-19
KR101311397B1 (ko) 2013-09-25
JP5068838B2 (ja) 2012-11-07
CN101825096A (zh) 2010-09-08
PT2271841E (pt) 2011-09-01
DK2271841T3 (da) 2011-10-03
EP2271841B1 (fr) 2011-06-22
PL2271841T3 (pl) 2011-10-31
AU2010219492B2 (en) 2011-11-17
ATE513998T1 (de) 2011-07-15
JP2010203447A (ja) 2010-09-16
RU2011136078A (ru) 2013-03-10
RU2504694C2 (ru) 2014-01-20
KR20110099284A (ko) 2011-09-07

Similar Documents

Publication Publication Date Title
US8784049B2 (en) Fan
US8684687B2 (en) Fan assembly
US8408869B2 (en) Fan assembly
US8721286B2 (en) Fan assembly
CA2746723C (fr) Ensemble ventilateur

Legal Events

Date Code Title Description
AS Assignment

Owner name: DYSON TECHNOLOGY LIMITED, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GAMMACK, PETER DAVID;DYSON, JAMES;REEL/FRAME:024262/0844

Effective date: 20100413

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION