GB2452490A - Bladeless fan - Google Patents

Bladeless fan Download PDF

Info

Publication number
GB2452490A
GB2452490A GB0717155A GB0717155A GB2452490A GB 2452490 A GB2452490 A GB 2452490A GB 0717155 A GB0717155 A GB 0717155A GB 0717155 A GB0717155 A GB 0717155A GB 2452490 A GB2452490 A GB 2452490A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
fan assembly
nozzle
preceding
fan
surface
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.)
Withdrawn
Application number
GB0717155A
Other versions
GB0717155D0 (en )
Inventor
Peter David Gammack
Nicolas Frederic
Kevin John Simmonds
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
Family has litigation

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14Jet 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
    • F04F5/16Jet 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46Arrangements of nozzles

Abstract

A bladeless fan assembly 1 comprising a nozzle 10 and means for creating an air flow through the nozzle 10. The nozzle comprises in interior passage 20 communicating with a mouth 12, which is arranged to direct airflow from the interior passage 20 over an adjacent surface 14, which may be convex. The nozzle 10 may be an annular, circumferentially continuous plenum, which may be at least 10cm in diameter and at least 5cm long. The nozzle 10 surface may comprise a diffuser which may be at least 5cm or 2/3 of the length of the nozzle 10, and may lie in a plane no more than 15 degrees from the horizontal. The mouth 12 may be at least part circular and the mouth opening may be less than 5mm. The air flow through the nozzle 10 may be created by a motor 30 and an impeller and there may be a duct communicating with the motor 30 and the nozzle 10. The motor 30 may be a DC brushless motor with a mixed flow impeller. The fan 1 may be rotatable about its base 18 and may be mounted on the desk, floor, a wall or a ceiling; and it may include lighting, a clock, or an LCD.

Description

1 2452490 An Apnliance The present invention relates to an appliance, in particular to a fan, for creating an air current comprising a nozzle and means suitable for creating an airflow through the nozzle, wherein the fan assembly is bladeless. Particularly, but not exclusively, the present invention relates to a fan, such as a desk fan, for use in an office or domestic environment.

A number of types of domestic fan are known. A standard fan comprises a single set of blades mounted about a first axis and a drive also mounted about the first axis for powering the single set of blades. Domestic fans are available in a variety of sizes and diameters, for example, a large ceiling fan can be at least I m in diameter and is positioned to provide a downward flow of air and cooling throughout a room. Also domestic fans can be freestanding, attached to the floor or mounted on a wall. Fans such as that disclosed in US Design 103476 are suitable for standing on a desk or a table and can provide a directed airflow or air current targeted close to a user. US 2620127 discloses a dual purpose fan suitable for use both mounted in a window or panel and as

a portable desk fan.

In a domestic environment it is desirable for appliances to be as small and compact as :::: possible. US 1767060 describes a desk fan with an oscillating function that aims to provide an air circulation equivalent to two or more prior art fans. In a domestic environment it is undesirable for parts to project from the appliance, or for the user to be :.:::. able to touch any moving parts of the fan, such as the blades. US Design 103476 includes a shroud or cage around the blades. Other types of fan or circulator are described in US 2488467 and US 2433795. The fan of US 2433795 has spiral slots in a rotating shroud instead of fan blades.

Some of the above prior art arrangements have safety features such as a cage or shroud around the louvres or blades to protect a user from injuring themselves on the moving parts of the fan. However, caged blade parts can be difficult to clean and the movement of blades through air can be noisy and disruptive to a user in a home or office environment A disadvantage of certain prior art arrangements is that the airflow or circulation produced by the fan is not felt uniformly by the user due to variations across the blade surface or across the outward facing surface of the fan. Uneven airflow can be felt by a user as a series of pulses or blasts of air. A further disadvantage is that the cooling feeling created by the fan diminishes with distance from the user, this means the fan must be placed in close proximity to the user in order for the user to receive the benefit of the fan. However, locating such a fan close to a user is not always possible and locating certain types of known fan close to the user and work space has disadvantages.

Often personal fans or desk fans suitable for use in an office or home environment are dense, and have a bulky shape, with a cage and moving blades for example. This structure means that the fan occupies a significant amount of the user's space and work station area. In the particular case of a fan placed on a desk, or in another position close to the user's work within the working environment, the fan body takes up a significant amount of desk or user space reducing the area available for paperwork, PC or other office equipment. The shape of the fan on or above a desk not only reduces the working area available to a user but can block natural light (or light from artificial sources) from * reaching the desk area. A well lit desk area is desirable for close work and for reading.

In addition, a well lit area can reduce eye strain and the related health problems that : *.*, may result after prolonged periods working in reduced light levels. ***.

The present invention seeks to provide an improved fan assembly which obviates disadvantages of the prior art. It is an object of the present invention to provide a fan assembly which, in use, generates air flow at an even rate over the emission output area of the fan. It is another object to provide an improved fan assembly whereby a user at a distance from the fan feels an improved airflow effect in comparison to prior art fans.

According to the invention, there is provided a fan assembly suitable for creating an air current, the fan comprising a nozzle and means suitable for creating an airflow through the nozzle, wherein the fan assembly is bladeless and the nozzle comprises an interior passage communicating with a mouth, the mouth being adjacent a surface and adapted and arranged in communication with the interior passage so as to direct airflow from the interior passage over the surface. The air flow can be described as having an approximately flat velocity profile across the diameter of the nozzle, the flow rate and profile can be described as plug flow with some regions having a laminar or partial laminar flow.

Advantageously, by this arrangement, an air current and a flow of cooling air is created without requiring a bladed fan i.e. airflow is created by a bladeless fan. This arrangement leads to lower noise emissions due to the absence of the sound of a fan blade moving through the air, and a reduction in moving parts and complexity.

Preferably, the surface is a convex surface, more preferably, the surface is a Coanda surface. A Coanda surface is a known 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. A description of the features of a Coanda surface and the effect of liquid flow over a Coanda surface can : be found in articles such as Reba, Scientific American, Volume 214, June 1963 pages S...

84 to 92. This arrangement creates a fan where the stream of air exiting through the *:: : . mouth of the fan follows the profile of the surface. The air flow and the direction of the air flow at the nozzle exit causes entrainment of the air surrounding the nozzle mouth and acts as an air amplifier, drawing additional air flow through the fan opening than :.:... without the Coanda surface. The airflow emitted through the opening is increased by at least 15% in comparison to that of a prior art device, the invention provides a fan with greater efficiency than prior art devices and a fan allowing more flexibility in the design and layout of the apparatus than with previous fans.

Preferably the nozzle comprises a circumferentially continuous plenum. A continuous plenum allows smooth, unimpeded fluid flow within the fan and reduces frictional losses and noise. in this arrangement the nozzle part can be manufactured as a single piece, reducing the complexity of the apparatus and thereby reducing manufacturing costs.

The shape of the nozzle is not constrained by the requirement to include space for a bladed fan. In a preferred embodiment the nozzle is annular. In a further preferred embodiment the mouth is circular. By providing a circular nozzle mouth and opening air flow can be emitted towards a user over a broad area. The air flow from the nozzle mouth and air entrained from around the mouth mix to provide a uniform cooling surface of air for the user. In an annular arrangement a central space is delimited by the circular fan shape. Advantageously, an illumination source in the room or at the desk fan location or natural light can reach the user through the central space.

In a further preferred embodiment the mouth is part circular. This arrangement can provide for a reduced airflow in certain situations or a direction to the airflow.

Preferably the nozzle is at least 10 cm in diameter, more preferably the nozzle is at least 25cm in diameter. This provides an outlet for emission of air over a broad area, suitable ::: for cooling the upper body and face of a user when working at a desk, for example.

:. Preferably the nozzle has a length of at least 5 cm and preferably the nozzle surface comprises a diffuser surface. By this arrangement a Coanda surface is defined with the desired flow properties to guide fluid over the surface and provide a uniform or close to :.::* uniform air flow at the user. Preferably, the length of the diffuser is at least 66% of the nozzle length, preferably at least 50 mm. In a preferred arrangement the mouth opening is less than 5mm, more preferably 1mm. In the preferred arrangement the diffuser surface lies in a plane at an angle of no more than 15 degrees from the horizontal, more preferably no more than 7 degrees from the axis. By this angular arrangement of the diffuser surface and the aerofoi 1-type shaping of the nozzle and surface the ampLification properties of the nozzle and mouth shape are enhanced whilst minimising noise and frictional losses.

In the preferred fan arrangement the assembly includes a motor, an impeller and a duct communicating with the motor and the nozzle. This arrangement provides some design flexibility and freedom of arrangement of the fan in a user's working or home environment. More preferably the motor is a DC brushless motor, this arrangement reduces frictional losses from motor brushes and also reduces carbon debris from brushes in a traditional motor. Reducing carbon debris and emissions is advantageous in a clean or pollutant sensitive environment such as a hospital or around those with allergies.

Preferably the fan includes a rotatable part, allowing the fan to rotate or pivot about a base portion, or other portion, of the fan. This enables the fan to be directed towards or away from a user as required. In preferred embodiment the fan is desk mountable, in an alternative preferred arrangement the fan assembly may be floor, wall or ceiling

mountable.

An embodiment of the invention will now be described with reference to the accompanying drawings, in which: *...

Figure 1 is a perspective and schematic view of the fan assembly according to the :. invention; a : Figure 2 is a side sectional view through the fan assembly of Figure 1 at line A-A; Figure 3 is an enlarged side sectional detail of the nozzle of the fan assembly of Figure I; and Figure 4 is a sectional view of the fan assembly according to the invention, taken along line B-B in Figure 2 and viewed from direction F of Figure 2.

A fan assembly according to the invention is shown in Figure 1. The fan assembly I of Figure 1 is shown comprising a nozzle 10, means suitable for creating airflow through the nozzle, the nozzle 10 comprising an interior passage 20 communicating with a mouth 12, the mouth 12 adjacent a surface 14 and adapted and arranged in communication with the interior passage 20 so as to direct airflow from the interior passage 20 over the surface 14. The fan is suitable for creating an air current in a room.

Referring firstly to Figures 1 and 2, the fan assembly 1 includes an annular nozzle 10 having an interior passage 20 and a mouth 12. The nozzle is supported by a neck portion 16 and a base 18. Base 18 includes a motor housing 22 having an air inlet 24 and motor means 30 capable of producing an airflow. The neck 16 and base 18 include hollow portions or passageways or ducts allowing fluid communication from the motor means 30 to the interior passage 20 of nozzle 10.

In the embodiment shown, and with reference to Figure 3 the nozzle 10 comprises a circumferentially continuous plenum. The diameter of the nozzle is 300mm. The shape of the nozzle 10 is annular and the mouth 12 is circular. The mouth comprises has a gap or spacing of 1mm between the lips or sides of the mouth or surfaces. The mouth 12 is adjacent a surface 14. The surface 14 is substantially convex and acts to assist the flow : of air in the fan assembly. I.. * *

The nozzle 10 further comprises a diffuser portion 28. The diffuser includes a surface to further assist the flow of air in the fan assembly. Diffuser surface 28 and overall nozzle profile are based on aerofoil shape, in the preferred embodiment the diffuser 28 * : ::* should be two thirds the length of the overall nozzle, specifically 84mm when the length of the overall nozzle is 111mm. In the embodiment shown here the angle of the surface of the diffuser region is 7 degrees to the horizontal for maximum efficiency of airflow.

In the preferred embodiment, and as shown on Figure 4, a DC brushless motor 30 such as the motor available from Moog Components Group, Part number BNI2-28AF-0l LH is used to create an airflow through the nozzle. A mixed flow fan 32 is located upstream of the motor. A diffuser 34 comprising a fixed, stationary disc having spiral blades 35 is positioned downstream of the brushless motor 30. The spiral blades 35 of the diffuser 34 act to recover some pressure from the motor 30. A secondary diffuser 36 is located downstream of the motor and acts to recover some of the static pressure lost in the motor housing and through the motor 30. The secondary diffuser 36 is cone shaped and acts to guide the air flow exiting the motor 30. The diffuser 36 has a gradually changing cross section to act to reduce the pressure loss experienced by the airflow on entering the neck of the nozzle 10 and the interior passage 20 and chamber from the motor exhaust.

With reference to Figure 4 the operation of the fan will be described. The fan assembly includes a flow passage having an inlet 24 and a flow passage outlet 26. Air flow directed into the flow passage and the interior passage 20 flows into the annular nozzle and is constricted through the mouth 12. The band of air obeys and flows and adheres by the Coanda effect such that it follows the profile of the convex surface 14 and the diffuser 28. The resultant flow of air creates a low pressure area at the inlet 24 and the result is the inducing of a high flow of air through in the interior passage 20 of the nozzle 10 and out of the mouth 12. The high flow rate causes entrainment of air * from the region around the mouth 12 and the nozzle 10 resulting in amplification of the * wind and air emitted from the fan as compared to air flow from a fan without the convex, or other, surface adjacent the emitting mouth 12.

S * * S ** *

The invention is not limited to the detailed description given above. Variations wiLl be apparent to the person skilled in the art. For example, the fan could be of a different :.. height or diameter, the fan need not be located on a desk, but could be free standing, wall mounted or ceiling mounted. The fan shape could be adapted to suit any kind of situation or location where a cooling flow of air is desired. A portable fan could have a smaller nozzle, say 5cm in diameter. The means for creating an airflow through the nozzle can be a motor or other air emitting device, such as an air blower or vacuum source. The mouth opening may be modified to maximise air flow, the mouth may have a spacing from 0.5mm up to 3mm wide.

Other shapes or fan construction could be envisaged such as a nozzle comprising an oval, or racetrack' shape, a single strip or line or block shape could be used. The fan assembly provides access to the central part of the fan as there are no blades, this means additional features such as lighting or a clock or LCD display could be provided in the central portion, or elsewhere, on the fan.

Other features could include a pivotable or tiltable base on the fan assembly for ease of movement and adjustment of the position of the fan for the user. S. * S * *5S * SI* * * *5I* S... * *.

I * I. * * I S...

Claims (27)

1. A fan assembly suitable for creating an air current comprising a nozzle and means suitable for creating an airflow through the nozzle, wherein the fan assembly is bladeless; and the nozzle comprises an interior passage communicating with a mouth, the mouth being adjacent a surface and adapted and arranged in communication with the interior passage so as to direct airflow from the interior passage over the surface
2. A fan assembly as claimed in claim 1, wherein the surface is a convex surface.
3. A fan assembly as claimed in claim I or claim 2, wherein the surface is convex.
4. A fan assembly as claimed in any of claims 1, 2 or 3, wherein the nozzle comprises a circumferentially continuous plenum.
5. A fan assembly as claimed in any preceding claim, wherein the nozzle is annular.
6 A fan assembly as claimed in any preceding claim, wherein the mouth is circular. * * * *** ****
7. A fan assembly as claimed in any one of claims I to 5 wherein the mouth is part circular. * . *
II I
8. A fan assembly as claimed in any preceding claim, wherein the nozzle is at least ::::. 10cm in diameter.
9. A fan assembly as claimed in any preceding claim, wherein the nozzle is at least cm in diameter
10. A fan assembly as claimed in any preceding claim, wherein the nozzle has a length of at least 5cm.
11. A fan assembly as claimed in any preceding claim, wherein the nozzle surface comprises a diffuser.
12. A fan assembly as claimed in claim ii, wherein the length of the diffuser is at least 2/3 or 66% of the length of the nozzle.
13. A fan assembly as claimed in claim 12, wherein the length of the diffuser is least 50mm.
14. A fan assembly as claimed in any preceding claim, wherein the mouth opening is less than 5 mm.
15. A fan assembly as claimed in any preceding claim, wherein the mouth opening islmm.
16. A fan assembly as claimed in any preceding claim, wherein the diffuser surface lies in a plane arranged at an angle of no more than 15 degrees from the horizontal axis.
17. A fan assembly as claimed in any preceding claim, wherein the diffuser surface lies in a plane arranged at an angle of no more than 7 degrees from the horizontal axis.
18. A fan assembly as claimed in any preceding claim wherein the means suitable :.:::. for creating an airflow through the nozzle comprises a motor and an impeller and the assembly further comprises a duct communicating with the motor and the nozzle.
I
19. A fan assembly as claimed in claim 18, wherein the motor is a DC brushless motor having a mixed flow impeller.
20. A fan assembly as claimed in any preceding claim, wherein the assembly includes a rotatable part.
21. A fan assembly as claimed in claim 19, wherein the assembly is rotatable about a base portion.
22. A fan assembly as claimed in any preceding claim, wherein the fan assembly is
desk mountable.
23. A fan assembly as claimed in any of claims ito 21, wherein the fan assembly is
floor mountable.
24. A fan assembly as claimed in any of claims I to 21, wherein the fan assembly is
wall mountable.
25. A fan assembly as claimed in any of claims Ito 21, wherein the fan assembly is arranged to hang from a ceiling.
26. A fan assembly as claimed in any preceding claim, the fan assembly further * including lighting means. ***
27. A fan assembly substantially as hereinbefore described with reference to the accompanying drawings. * ** * * * ****
GB0717155A 2007-09-04 2007-09-04 An appliance Withdrawn GB0717155D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0717155A GB0717155D0 (en) 2007-09-04 2007-09-04 An appliance

Applications Claiming Priority (33)

Application Number Priority Date Filing Date Title
GB0717155A GB0717155D0 (en) 2007-09-04 2007-09-04 An appliance
GB0814835A GB0814835D0 (en) 2007-09-04 2008-08-14 A Fan
GB0814866A GB0814866D0 (en) 2007-09-04 2008-08-14 A fan
RU2010112706A RU2458254C2 (en) 2007-09-04 2008-08-26 Fan
DE200860006467 DE602008006467D1 (en) 2007-09-04 2008-08-26 Fan
RU2010112705A RU2458255C2 (en) 2007-09-04 2008-08-26 Fan
EP20110158483 EP2333349A1 (en) 2007-09-04 2008-08-26 A fan
DE200860003846 DE602008003846D1 (en) 2007-09-04 2008-08-26 Fan
PCT/GB2008/002874 WO2009030879A1 (en) 2007-09-04 2008-08-26 A fan
ES08788450T ES2365066T3 (en) 2007-09-04 2008-08-26 Fan.
EP20080788450 EP2232077B1 (en) 2007-09-04 2008-08-26 A fan
KR20107005884A KR101320980B1 (en) 2007-09-04 2008-08-26 A fan
DK08788433T DK2191142T3 (en) 2007-09-04 2008-08-26 Fan
KR20107005885A KR101233227B1 (en) 2007-09-04 2008-08-26 A fan
DK08788450T DK2232077T3 (en) 2007-09-04 2008-08-26 Fan
ES08788433T ES2355441T3 (en) 2007-09-04 2008-08-26 Fan.
EP20080788433 EP2191142B1 (en) 2007-09-04 2008-08-26 A fan
PCT/GB2008/002891 WO2009030881A1 (en) 2007-09-04 2008-08-26 A fan
CA 2698489 CA2698489C (en) 2007-09-04 2008-08-26 A fan
CA 2698490 CA2698490C (en) 2007-09-04 2008-08-26 A fan
RU2010112705K RU2507419C2 (en) 2007-09-04 2008-08-26 Fan
KR20127030740A KR20130005308A (en) 2007-09-04 2008-08-26 A fan
CA 2928486 CA2928486C (en) 2007-09-04 2008-08-26 A fan
US12230613 US9249810B2 (en) 2007-09-04 2008-09-02 Fan
JP2008225628A JP5030106B2 (en) 2007-09-04 2008-09-03 Blower
US12203698 US8308445B2 (en) 2007-09-04 2008-09-03 Fan
JP2008225629A JP4923303B2 (en) 2007-09-04 2008-09-03 Blower
CN 200810177844 CN101424279B (en) 2007-09-04 2008-09-04 Fan
CN 200810177843 CN101424278B (en) 2007-09-04 2008-09-04 fan
US12945558 US20110058935A1 (en) 2007-09-04 2010-11-12 Fan
US13114707 US8403650B2 (en) 2007-09-04 2011-05-24 Fan
JP2012073794A JP5365943B2 (en) 2007-09-04 2012-03-28 Blower
US13779285 US8764412B2 (en) 2007-09-04 2013-02-27 Fan

Publications (2)

Publication Number Publication Date
GB0717155D0 GB0717155D0 (en) 2007-10-17
GB2452490A true true GB2452490A (en) 2009-03-11

Family

ID=38640193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0717155A Withdrawn GB0717155D0 (en) 2007-09-04 2007-09-04 An appliance

Country Status (3)

Country Link
CN (2) CN101424278B (en)
ES (2) ES2365066T3 (en)
GB (1) GB0717155D0 (en)

Cited By (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010035018A1 (en) * 2008-09-23 2010-04-01 Dyson Technology Limited A fan
GB2468313A (en) * 2009-03-04 2010-09-08 Dyson Technology Ltd Fan assembly
GB2468321A (en) * 2009-03-04 2010-09-08 Dyson Technology Ltd Tower fan
WO2010100451A1 (en) * 2009-03-04 2010-09-10 Dyson Technology Limited A fan assembly
CN101985948A (en) * 2010-11-27 2011-03-16 任文华 Bladeless fan
GB2468320B (en) * 2009-03-04 2011-03-23 Dyson Technology Ltd Tilting fan
GB2475425A (en) * 2009-03-04 2011-05-18 Dyson Technology Ltd Tilting fan
GB2476366A (en) * 2009-03-04 2011-06-22 Dyson Technology Ltd Tilting Fan Stand
US7972111B2 (en) 2009-03-04 2011-07-05 Dyson Technology Limited Fan assembly
GB2478570A (en) * 2010-03-11 2011-09-14 Edward Philip Ian Whittaker Air moving apparatus for increasing flow over aerofoil surfaces
US8092166B2 (en) 2008-12-11 2012-01-10 Dyson Technology Limited Fan
WO2012017220A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited A fan assembly
CN102367814A (en) * 2011-09-30 2012-03-07 王宁雷 Nozzle of bladeless fan
GB2484761A (en) * 2010-10-18 2012-04-25 Dyson Technology Ltd A fan assembly comprising an adjustable nozzle for control of air flow
GB2484762A (en) * 2010-10-18 2012-04-25 Dyson Technology Ltd A fan assembly comprising an adjustable nozzle for control of air flow
CN102444628A (en) * 2010-10-06 2012-05-09 戴森技术有限公司 Fan assembly
US8197226B2 (en) 2009-03-04 2012-06-12 Dyson Technology Limited Fan assembly
GB2486749A (en) * 2010-10-18 2012-06-27 Dyson Technology Ltd A fan assembly comprising an adjustable surface for control of air flow
WO2012085528A1 (en) * 2010-12-23 2012-06-28 Dyson Technology Limited Bladeless ceiling fan
WO2012085527A1 (en) * 2010-12-23 2012-06-28 Dyson Technology Limited A bladeless ceiling fan
WO2012085526A1 (en) * 2010-12-23 2012-06-28 Dyson Technology Limited Bladeless ceiling fan comprising annular nozzle and support assembly for ceiling mount
WO2012085525A1 (en) 2010-12-23 2012-06-28 Dyson Technology Limited Fan assembly comprising annular nozzel and ceiling mount
US8246317B2 (en) 2009-03-04 2012-08-21 Dyson Technology Limited Fan assembly
US8308445B2 (en) 2007-09-04 2012-11-13 Dyson Technology Limited Fan
GB2468314B (en) * 2009-03-04 2012-12-26 Dyson Technology Ltd A fan
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
US20130067948A1 (en) * 2011-09-15 2013-03-21 Hyun Kim Cooling apparatus for a machine room of a refrigerator using a nacelle-shaped duct
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
US8469660B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
US8469658B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan
CN103306997A (en) * 2012-03-06 2013-09-18 深圳诺华数码电子有限公司 Bladeless fan and side-stream blowing device thereof
GB2502105A (en) * 2012-05-16 2013-11-20 Dyson Technology Ltd Bladeless fan
WO2013171452A2 (en) * 2012-05-16 2013-11-21 Dyson Technology Limited A fan
US8613601B2 (en) 2009-03-04 2013-12-24 Dyson Technology Limited Fan assembly
US8721286B2 (en) 2009-03-04 2014-05-13 Dyson Technology Limited Fan assembly
US8770946B2 (en) 2010-03-23 2014-07-08 Dyson Technology Limited Accessory for a fan
CN103982403A (en) * 2013-02-07 2014-08-13 任文华 Fan
CN103982401A (en) * 2013-02-07 2014-08-13 任文华 Fan
CN103982404A (en) * 2013-02-07 2014-08-13 任文华 Fan
CN104100497A (en) * 2013-04-08 2014-10-15 任文华 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
CN104295537A (en) * 2012-01-28 2015-01-21 任文华 Bladeless fan and spray nozzle used for bladeless 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
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 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
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
US9062685B2 (en) 2011-07-15 2015-06-23 Dyson Technology Limited Fan assembly with tangential air inlet
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US9127689B2 (en) 2009-03-04 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
USD747454S1 (en) 2014-01-09 2016-01-12 Dyson Technology Limited Fan
USD747453S1 (en) 2014-01-09 2016-01-12 Dyson Technology Limited Fan
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
RU2575208C2 (en) * 2010-12-23 2016-02-20 Дайсон Текнолоджи Лимитед Fan assembly comprising annular nozzle and ceiling holder
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
US9534610B2 (en) 2011-07-15 2017-01-03 Dyson Technology Limited Fan discharge duct having a scroll section
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568021B2 (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
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9797413B2 (en) 2011-07-15 2017-10-24 Dyson Technology Limited Bladeless ceiling fan
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
US9797414B2 (en) 2013-07-09 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
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
WO2018057920A1 (en) * 2016-09-23 2018-03-29 Pavalarajan Ganesh B Surgical helmet
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101713414B (en) 2009-11-26 2011-04-06 周洪祥 Blade-free electric fan
CN101749288B (en) 2009-12-23 2013-08-21 杭州玄冰科技有限公司 Airflow generating method and device
CN102135105B (en) * 2010-01-27 2013-06-05 益阳市拓达电器有限公司 Blade-free fan
GB2478926B (en) * 2010-03-23 2016-09-28 Dyson Technology Ltd Portable Fan Assembly with Detachable Filter Unit
CN101936310A (en) * 2010-10-04 2011-01-05 任文华 Fan without fan blades
WO2012046022A1 (en) * 2010-10-04 2012-04-12 Dyson Technology Limited Fan supplied by external dc power source
JP5588565B2 (en) * 2010-10-13 2014-09-10 ダイソン テクノロジー リミテッド Blower assembly
WO2012052737A1 (en) * 2010-10-20 2012-04-26 Dyson Technology Limited A fan
CN101985949A (en) * 2010-11-29 2011-03-16 任文华 Bladeless fan device
CN101988527A (en) * 2010-12-08 2011-03-23 任文华 Blade-free fan device
CN101988528A (en) * 2010-12-13 2011-03-23 任文华 Blade-free fan device
CN102003420A (en) * 2010-12-17 2011-04-06 任文华 Bladeless fan device
CN102900656A (en) * 2010-12-17 2013-01-30 任文华 Bladeless fan device
CN102182712A (en) * 2011-05-07 2011-09-14 应辉 Fan
CN102777428B (en) * 2011-05-07 2015-01-07 陈大林 Bladeless fan
CN102797709A (en) * 2011-05-26 2012-11-28 任文华 Fan
CN102192198A (en) * 2011-06-10 2011-09-21 应辉 Fan assembly
CN102305220B (en) * 2011-08-16 2015-01-07 江西维特科技有限公司 Low-noise blade-free fan
CN103016366A (en) * 2011-09-23 2013-04-03 赵彦杰 Portable bladeless direct current electric fan
CN102367813A (en) * 2011-09-30 2012-03-07 王宁雷 Nozzle of bladeless fan
CN103089704B (en) * 2011-10-31 2017-03-01 Ge医疗系统环球技术有限公司 A fan assembly having the fan and the electrical equipment assembly
CN103162323A (en) * 2011-12-12 2013-06-19 上海市第一中学 Range hood
CN103671245B (en) * 2012-09-16 2016-12-21 陈大林 Having a fan impeller and the impeller species
CN103775314A (en) * 2012-10-24 2014-05-07 李耀强 Blade-free fan
CN105736471A (en) * 2013-02-15 2016-07-06 任文华 Fan
CN103994055B (en) * 2013-02-15 2016-03-30 任文华 fan
CN103244388B (en) * 2013-03-22 2015-10-07 杭州亿脑智能科技有限公司 A fan assembly
CN103615397A (en) * 2013-12-02 2014-03-05 昆山俊润通风降温设备有限公司 Negative pressure draught fan
CN104006430A (en) * 2013-12-31 2014-08-27 昆山洛博格机械技术咨询有限公司 Novel bladeless oil smoke exhausting device
CN105012011A (en) * 2015-07-03 2015-11-04 上海交通大学 Smog filtering system
CN106438513B (en) * 2016-09-05 2018-08-07 深圳市达迪尔智能电器有限公司 No leaf fan kinds of things for the intelligent smart home-based
CN106984451A (en) * 2017-05-10 2017-07-28 北京航科阶跃科技有限公司 Shower head, bathing device and bathing system
CN107575406A (en) * 2017-09-30 2018-01-12 程凌军 Blade-free fan

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501473A (en) * 1974-06-11 1978-02-15 Charbonnages De France Fans
JPS56167897A (en) * 1980-05-28 1981-12-23 Toshiba Corp Fan
GB2236804A (en) * 1989-07-26 1991-04-17 Anthony Reginald Robins Compound nozzle
GB2242935A (en) * 1990-03-14 1991-10-16 S & C Thermofluids Ltd Flue gas extraction
US6123618A (en) * 1997-07-31 2000-09-26 Jetfan Australia Pty. Ltd. Air movement apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488467A (en) 1947-09-12 1949-11-15 Lisio Salvatore De Motor-driven fan
US2583374A (en) * 1950-10-18 1952-01-22 Hydraulic Supply Mfg Company Exhaust fan
GB863124A (en) 1956-09-13 1961-03-15 Sebac Nouvelle Sa New arrangement for putting gases into movement
DE1291090B (en) * 1963-01-23 1969-03-20 Schmidt Geb Halm Anneliese Means for generating a air velocity
DE1601364A1 (en) 1968-02-13 1970-08-06 Bosch Gmbh Robert Timer for an electronically controlled fuel injection system
US3885891A (en) * 1972-11-30 1975-05-27 Rockwell International Corp Compound ejector
US3795367A (en) 1973-04-05 1974-03-05 Src Lab Fluid device using coanda effect
GB2111125A (en) 1981-10-13 1983-06-29 Beavair Limited Apparatus for inducing fluid flow by Coanda effect
GB8600349D0 (en) 1986-01-08 1986-02-12 Rolls Royce Ejector pumps
US5762034A (en) 1996-01-16 1998-06-09 Board Of Trustees Operating Michigan State University Cooling fan shroud

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501473A (en) * 1974-06-11 1978-02-15 Charbonnages De France Fans
JPS56167897A (en) * 1980-05-28 1981-12-23 Toshiba Corp Fan
GB2236804A (en) * 1989-07-26 1991-04-17 Anthony Reginald Robins Compound nozzle
GB2242935A (en) * 1990-03-14 1991-10-16 S & C Thermofluids Ltd Flue gas extraction
US6123618A (en) * 1997-07-31 2000-09-26 Jetfan Australia Pty. Ltd. Air movement apparatus

Cited By (149)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9249810B2 (en) 2007-09-04 2016-02-02 Dyson Technology Limited Fan
US8403650B2 (en) 2007-09-04 2013-03-26 Dyson Technology Limited Fan
US8308445B2 (en) 2007-09-04 2012-11-13 Dyson Technology Limited Fan
US8764412B2 (en) 2007-09-04 2014-07-01 Dyson Technology Limited Fan
US8348629B2 (en) 2008-09-23 2013-01-08 Dyston Technology Limited Fan
US7931449B2 (en) 2008-09-23 2011-04-26 Dyson Technology Limited Fan
WO2010035018A1 (en) * 2008-09-23 2010-04-01 Dyson Technology Limited A fan
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US8092166B2 (en) 2008-12-11 2012-01-10 Dyson Technology Limited Fan
GB2468320B (en) * 2009-03-04 2011-03-23 Dyson Technology Ltd Tilting fan
GB2476366A (en) * 2009-03-04 2011-06-22 Dyson Technology Ltd Tilting Fan Stand
US7972111B2 (en) 2009-03-04 2011-07-05 Dyson Technology Limited Fan assembly
US8469658B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan
GB2475425B (en) * 2009-03-04 2011-10-05 Dyson Technology Ltd Tilting fan
US8052379B2 (en) 2009-03-04 2011-11-08 Dyson Technology Limited Fan assembly
GB2476366B (en) * 2009-03-04 2011-11-16 Dyson Technology Ltd Tilting Fan Stand
GB2476172B (en) * 2009-03-04 2011-11-16 Dyson Technology Ltd Tilting fan stand
GB2476172A (en) * 2009-03-04 2011-06-15 Dyson Technology Ltd Tilting fan stand
GB2475425A (en) * 2009-03-04 2011-05-18 Dyson Technology Ltd Tilting fan
US9513028B2 (en) 2009-03-04 2016-12-06 Dyson Technology Limited Fan assembly
US9599368B2 (en) 2009-03-04 2017-03-21 Dyson Technology Limited Nozzle for bladeless fan assembly with heater
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US9127689B2 (en) 2009-03-04 2015-09-08 Dyson Technology Limited Fan assembly
GB2468322B (en) * 2009-03-04 2011-03-16 Dyson Technology Ltd Tilting fan stand
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
US8784071B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Fan assembly
WO2010100451A1 (en) * 2009-03-04 2010-09-10 Dyson Technology Limited A fan assembly
US8721286B2 (en) 2009-03-04 2014-05-13 Dyson Technology Limited Fan assembly
US8714937B2 (en) 2009-03-04 2014-05-06 Dyson Technology Limited Fan assembly
US8246317B2 (en) 2009-03-04 2012-08-21 Dyson Technology Limited Fan assembly
US8308432B2 (en) 2009-03-04 2012-11-13 Dyson Technology Limited Fan assembly
GB2468321A (en) * 2009-03-04 2010-09-08 Dyson Technology Ltd Tower fan
GB2468313B (en) * 2009-03-04 2012-12-26 Dyson Technology Ltd A fan
GB2468314B (en) * 2009-03-04 2012-12-26 Dyson Technology Ltd A fan
US8348596B2 (en) 2009-03-04 2013-01-08 Dyson Technology Limited Fan assembly
US8708650B2 (en) 2009-03-04 2014-04-29 Dyson Technology Limited Fan assembly
US8348597B2 (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
US8684687B2 (en) 2009-03-04 2014-04-01 Dyson Technology Limited Fan assembly
US8613601B2 (en) 2009-03-04 2013-12-24 Dyson Technology Limited Fan assembly
US8403640B2 (en) 2009-03-04 2013-03-26 Dyson Technology Limited Fan assembly
GB2468313A (en) * 2009-03-04 2010-09-08 Dyson Technology Ltd Fan assembly
US10006657B2 (en) 2009-03-04 2018-06-26 Dyson Technology Limited Fan assembly
US8529203B2 (en) 2009-03-04 2013-09-10 Dyson Technology Limited Fan assembly
GB2468321B (en) * 2009-03-04 2013-07-24 Dyson Technology Ltd A fan
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
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
US8197226B2 (en) 2009-03-04 2012-06-12 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
GB2478570A (en) * 2010-03-11 2011-09-14 Edward Philip Ian Whittaker Air moving apparatus for increasing flow over aerofoil surfaces
GB2478570B (en) * 2010-03-11 2012-02-15 Edward Philip Ian Whittaker Apparatus for modifying fluid flows over an aerodynamic surface
US8770946B2 (en) 2010-03-23 2014-07-08 Dyson Technology Limited Accessory for a fan
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited 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
WO2012017220A1 (en) * 2010-08-06 2012-02-09 Dyson Technology Limited A fan assembly
RU2555636C2 (en) * 2010-08-06 2015-07-10 Дайсон Текнолоджи Лимитед Assembled fan
US8734094B2 (en) 2010-08-06 2014-05-27 Dyson Technology Limited Fan assembly
US9745988B2 (en) 2010-09-07 2017-08-29 Dyson Technology Limited Fan
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
CN102444628A (en) * 2010-10-06 2012-05-09 戴森技术有限公司 Fan assembly
GB2484761B (en) * 2010-10-18 2013-08-14 Dyson Technology Ltd A fan assembly
GB2486749A (en) * 2010-10-18 2012-06-27 Dyson Technology Ltd A fan assembly comprising an adjustable surface for control of air flow
GB2494988A (en) * 2010-10-18 2013-03-27 Dyson Technology Ltd Fan assembly comprising nozzle having means for adjusting at least one parameter of the airflow
US8967980B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
GB2494989A (en) * 2010-10-18 2013-03-27 Dyson Technology Ltd Fan assembly comprising nozzle having means for adjusting at least one parameter of the airflow
GB2484762B (en) * 2010-10-18 2015-02-18 Dyson Technology Ltd A fan assembly
GB2484761A (en) * 2010-10-18 2012-04-25 Dyson Technology Ltd A fan assembly comprising an adjustable nozzle for control of air flow
GB2484762A (en) * 2010-10-18 2012-04-25 Dyson Technology Ltd A fan assembly comprising an adjustable nozzle for control of air flow
GB2494987A (en) * 2010-10-18 2013-03-27 Dyson Technology Ltd Fan assembly comprising nozzle having means for adjusting at least one parameter of the airflow
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
CN101985948A (en) * 2010-11-27 2011-03-16 任文华 Bladeless fan
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
RU2581117C2 (en) * 2010-12-23 2016-04-10 Дайсон Текнолоджи Лимитед Shelf bladeless fan
US9797411B2 (en) 2010-12-23 2017-10-24 Dyson Technology Limited Fan
US9194596B2 (en) 2010-12-23 2015-11-24 Dyson Technology Limited Ducted ceiling mounted fan
US9004858B2 (en) 2010-12-23 2015-04-14 Dyson Technology Limited Fan
WO2012085528A1 (en) * 2010-12-23 2012-06-28 Dyson Technology Limited Bladeless ceiling fan
WO2012085527A1 (en) * 2010-12-23 2012-06-28 Dyson Technology Limited A bladeless ceiling fan
WO2012085526A1 (en) * 2010-12-23 2012-06-28 Dyson Technology Limited Bladeless ceiling fan comprising annular nozzle and support assembly for ceiling mount
RU2575208C2 (en) * 2010-12-23 2016-02-20 Дайсон Текнолоджи Лимитед Fan assembly comprising annular nozzle and ceiling holder
WO2012085525A1 (en) 2010-12-23 2012-06-28 Dyson Technology Limited Fan assembly comprising annular nozzel and ceiling mount
US9062685B2 (en) 2011-07-15 2015-06-23 Dyson Technology Limited Fan assembly with tangential air inlet
US9534610B2 (en) 2011-07-15 2017-01-03 Dyson Technology Limited Fan discharge duct having a scroll section
US9797413B2 (en) 2011-07-15 2017-10-24 Dyson Technology Limited Bladeless ceiling fan
US9335064B2 (en) 2011-07-27 2016-05-10 Dyson Technology Limited Fan assembly
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9291361B2 (en) 2011-07-27 2016-03-22 Dyson Technology Limited Fan assembly
US10094581B2 (en) 2011-07-27 2018-10-09 Dyson Technology Limited Fan assembly
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
EP2570756A3 (en) * 2011-09-15 2017-11-29 Lg Electronics Inc. Cooling apparatus for machine room of refrigerator using nacelle shape
US9285154B2 (en) * 2011-09-15 2016-03-15 Lg Electronics Inc. Cooling apparatus for a machine room of a refrigerator using a nacelle-shaped duct
US20130067948A1 (en) * 2011-09-15 2013-03-21 Hyun Kim Cooling apparatus for a machine room of a refrigerator using a nacelle-shaped duct
CN102367814A (en) * 2011-09-30 2012-03-07 王宁雷 Nozzle of bladeless fan
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
CN104295537A (en) * 2012-01-28 2015-01-21 任文华 Bladeless fan and spray nozzle used for bladeless fan
CN104295537B (en) * 2012-01-28 2016-02-24 任文华 Leaf fan and a nozzle for a bladeless fan
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
CN103306997A (en) * 2012-03-06 2013-09-18 深圳诺华数码电子有限公司 Bladeless fan and side-stream blowing device thereof
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
RU2636974C2 (en) * 2012-05-16 2017-11-29 Дайсон Текнолоджи Лимитед Fan
WO2013171452A2 (en) * 2012-05-16 2013-11-21 Dyson Technology Limited A fan
WO2013171452A3 (en) * 2012-05-16 2014-09-18 Dyson Technology Limited A fan
GB2502105B (en) * 2012-05-16 2016-01-27 Dyson Technology Ltd A fan
GB2502105A (en) * 2012-05-16 2013-11-20 Dyson Technology Ltd Bladeless 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
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
CN103982401A (en) * 2013-02-07 2014-08-13 任文华 Fan
CN103982404A (en) * 2013-02-07 2014-08-13 任文华 Fan
CN103982403A (en) * 2013-02-07 2014-08-13 任文华 Fan
USD729375S1 (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
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
CN104100497B (en) * 2013-04-08 2016-04-20 任文华 fan
CN104100497A (en) * 2013-04-08 2014-10-15 任文华 fan
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
USD747453S1 (en) 2014-01-09 2016-01-12 Dyson Technology Limited Fan
USD747454S1 (en) 2014-01-09 2016-01-12 Dyson Technology Limited Fan
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
WO2018057920A1 (en) * 2016-09-23 2018-03-29 Pavalarajan Ganesh B Surgical helmet

Also Published As

Publication number Publication date Type
GB0717155D0 (en) 2007-10-17 grant
CN101424279B (en) 2014-05-28 grant
ES2355441T3 (en) 2011-03-25 grant
ES2365066T3 (en) 2011-09-21 grant
CN101424279A (en) 2009-05-06 application
CN101424278B (en) 2015-08-12 grant
CN101424278A (en) 2009-05-06 application

Similar Documents

Publication Publication Date Title
US20130280051A1 (en) Fan assembly
US20130272858A1 (en) Fan assembly
US20120045316A1 (en) Fan assembly
US20120034108A1 (en) Fan assembly
US20120031509A1 (en) Fan assembly
US20120082561A1 (en) Fan assembly
US20120033952A1 (en) Fan assembly
US20100226797A1 (en) Fan assembly
GB2468328A (en) Fan assembly with humidifier
US20100226763A1 (en) Fan assembly
US8454322B2 (en) Fan having a magnetically attached remote control
US20100226751A1 (en) Fan assembly
CN101749288B (en) Airflow generating method and device
US20100226753A1 (en) Fan assembly
US20100226754A1 (en) Fan assembly
US20100226764A1 (en) Fan
US20130280061A1 (en) Fan
US20100226749A1 (en) Fan assembly
US20100226758A1 (en) Fan assembly
US20110223014A1 (en) Fan assembly
GB2484671A (en) A fan assembly comprising an adjustable surface for control of air flow
CN101684828B (en) A fan
GB2484695A (en) A fan assembly comprising a nozzle and inserts for directing air flow
US20100226769A1 (en) Fan assembly
US8246317B2 (en) Fan assembly

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)