US20060252364A1 - Air supply device - Google Patents
Air supply device Download PDFInfo
- Publication number
- US20060252364A1 US20060252364A1 US10/567,914 US56791404A US2006252364A1 US 20060252364 A1 US20060252364 A1 US 20060252364A1 US 56791404 A US56791404 A US 56791404A US 2006252364 A1 US2006252364 A1 US 2006252364A1
- Authority
- US
- United States
- Prior art keywords
- air
- supply device
- air supply
- premises
- circle
- 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
Links
Images
Classifications
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- 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
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- the present invention relates to an air supply device for obtaining zones of clean air in premises, said air supply device comprising at least one air permeable body including at least one inner and at least one outer part of which the inner part consists of or includes porous material.
- U.S. Pat. No. 5,167,577 and SE 516 775 both define air supply units having outer layers of porous material, which means that they discharge air streams which unguided flow out in different directions and thereby cause undesired turbulence. Therefore, these air supply devices do not provide clean-air zones of optimum purity.
- EP 0 787 954 and DE 26 08 792 relate to conventional air distributors having demands upon good air distribution but without demands upon generating absolute pure zones of intake or supply air without admixture of surrounding impure air. These air distributors can provide a good air distribution with e.g. irregular air distribution within a larger area, which however does not mean that one can obtain a pure clean-air zone.
- the object of the present invention is to provide a simple air supply device for obtaining a pure zone of intake air. This is arrived at by providing the air supply device with the characterizing features of subsequent claim 1 .
- the new air supply device is a simple device which is easy to keep clean and permits discharge of under-tempered air, improved directional effect on the supplied air and a more uniform air distribution, which results in less coejection of impure surrounding air and thereby formation of a clean-air zone of optimum purity.
- FIG. 1 is a side view of an air supply device according to the invention
- FIG. 2 is a section through a portion of an intake air unit forming part of the air supply device
- FIG. 3 is a view III-III of a portion of the air supply device of FIG. 2 ;
- FIG. 4 illustrates a location of the air supply device of FIG. 1 in premises
- FIG. 5 schematically illustrates an air flow pattern provided by a prior art air supply device
- FIG. 6 schematically illustrates an air flow pattern provided by the air supply device according to the invention.
- FIG. 7 illustrates the location of the air supply device of FIG. 1 in a space above a door.
- the air supply device 1 illustrated in the drawings is adapted to supply air A, preferably clean and/or cool air, to premises 2 in buildings 3 .
- This air supply device 1 is preferably located in upper parts 4 of the premises 2 and comprises an intake air unit 5 which is at least partly directed downwards and which is provided to distribute the air A in uniformly distributed air streams 6 in order to form a zone 7 of clean air substantially beneath the air supply device 1 .
- the intake air unit 5 comprises an air supply tube 8 which is located at the ceiling 9 in the premises 2 and which can be directed downwards into said premises.
- the air supply tube 8 includes at least one air permeable body 11 with at least one inner part 12 and at least one outer part 13 .
- the body 11 is directed downwards or substantially downwards.
- the inner part 12 consists of or includes porous material 14 which is designed to offer resistance when air flows therethrough and said inner part can bring the air to flow therethrough as waved partial air streams 6 a .
- the inner part 12 may have filtering properties for air flowing therethrough in order to obtain a low content of particles in the premises 2 .
- the porous material 14 may be foamed plastic with preferably open cells.
- the outer part 13 of the body 11 is non-porous and have portions 15 forming or defining passages or channels 16 which are rectilinear or substantially rectilinear, of uniform or substantially uniform thickness and located close to each other, and which extend in parallel or substantially in parallel relative to each other.
- the length L of each passage 16 is at least four times greater than its width B.
- the rectilinear partial air streams 6 b define a laminar intake air flow in said clean-air zone 7 , which preferably is discharged at such low flow velocity that a turbulent zone 7 a formed or generated about the clean-air zone 7 will be very narrow and without strong air turbulence such that no or at least only small amounts of impure surrounding air is coejected by the intake air and mixed in the clean-air zone 7 .
- the supplied air A is preferably cooler than the air in the premises 2 , such that the air A in the clean-air zone 7 has a lower temperature than the surrounding air.
- the air streams 6 are generated by means of a fan device 22 or similar, which is provided to give or impart to said air streams a low velocity and a sufficient dynamic velocity pressure (dp).
- a device 23 is provided to see to that the air streams 6 get a lower temperature than the surrounding air in the premises 2 such that said air streams 6 can be brought to flow to a low level in said premises 2 .
- the shape of the body 11 provides for an optimum short pitch length.
- This generates an inwardly directed force which, when the body 11 is designed according to the invention, results in no or very little admixture of surrounding room air, but which, when the body 11 is not correctly designed, causes admixture of surrounding room air.
- the shape of the body 11 and the improved directional effect imparts a decelerating effect to the abovementioned inwardly directed force, resulting in a short pitch length.
- the air has lost its dynamic velocity pressure (dp)
- the under-temperature takes over the guidance of the intake air such that it reaches the intended level in the premises 2 .
- the body 11 has a shape which counteracts the contracting properties of cooled air (which gives the body 11 an increasing velocity profile), a completely pure clean-air zone 7 is obtained within a restricted area.
- FIG. 5 illustrates what is happening at a prior art device.
- non-parallel partial air streams 6 a are discharged, which instead are directed partially towards each other, which means that said partial air streams 6 a collide with each other and become turbulent.
- a wide turbulent zone 7 a is generated around the clean-air zone 7 and outside thereof the air is subjected to substantial turbulence, which is shown with arrows.
- FIG. 6 illustrates with a similar view what is happening at a device according to the invention.
- parallel partial air streams 6 a are discharged or exhausted, which means that these do not disturb each other when they flow out and thereby, a laminar air flow is generated without turbulence close to the body 11 or farther out therefrom.
- the partial air streams 6 a close to the body 11 generate a microscopic laminar flow from each passage 16 which surprisingly results in a macroscopic, substantially less incorporation and mixing of surrounding air, which also results in that smaller amounts of surrounding air are drawn downwards in the premises 2 .
- the passages 16 may have a length L which is 4-10 times greater than their width B and they may preferably have a length L which is 4-6 times their width B.
- the passages 16 are preferably rectilinear or substantially rectilinear, and of uniform thickness. They are preferably circular in cross section and they preferably have the same or substantially the same diameter along their entire length L. Furthermore, they preferably all have the same shape and preferably the same length.
- the portions 15 defining the passages form together a continuous, rigid outer part 13 and the passages 16 are preferably defined by tubes 17 which are located close beside each other, engage each other and are connected to each other.
- the tubes 17 are preferably made of a plastic material and they are connected to each other preferably by fusing.
- the air permeable body 11 preferably has a cross-sectional shape in the form of parts of a circle or substantially a circle or primarily parts of a circle or substantially a circle, i.e. shapes as in FIGS. 1 and 4 .
- Another suitable cross-sectional shape for the body 11 is a semicircular shape or substantially semicircular shape.
- Still another suitable cross-sectional shape for the body 11 is the shape of a quarter of a circle or substantially a quarter of a circle, i.e. a shape as in FIG. 7 , but the body 11 may have any other shape as parts of a circle or substantially a circle.
- the body 11 is shaped or designed as a spherical segment or substantially as a spherical segment.
- the intake air unit 5 may be located beneath an upper zone 18 of the premises 2 , namely such an upper zone 18 closest to the ceiling 9 of the premises 2 in which impure air is gathered and from which the impure air is ventilated through at least one air exhaust or air outlet 19 which preferably is provided at the ceiling 9 .
- the impure air from the upper zone 18 is not substantially coejected by the air streams 6 discharged by the air supply device 1 .
- the intake air unit 5 may be located above a door 20 to the premises 2 and it may be elongated and extend along at least a part of the width of the door 20 . By locating the intake air unit 5 in this way, a curtain of clean air and/or cool air can be generated immediately within the door 20 .
- a filter 21 In order to filtrate the air A before it is fed into the intake air unit 5 , one can locate or mount a filter 21 in the air supply tube 8 or on any other suitable location.
- the tubes 17 may e.g. be made of a metallic material or of a ceramic material or any other suitable material instead of a plastic material
- the outer part 13 may be thicker than the inner part 12
- at least the outer part 13 and preferably also the inner part 12 may consist of such heat resistant material that the air supply device 1 can substantially withstand fires and instead of an air outlet 19 located at the ceiling 9 of the premises 2 , at least one air outlet (not shown) can be located down below in the premises 2 .
- the air supply device 1 can be an intake air device with one or more intake air units 5 and/or be a device for air circulation.
- the device 23 can be a device taking in cool air and/or including a cooling device or be a cooling device for cooling air.
Abstract
Description
- The present invention relates to an air supply device for obtaining zones of clean air in premises, said air supply device comprising at least one air permeable body including at least one inner and at least one outer part of which the inner part consists of or includes porous material.
- U.S. Pat. No. 5,167,577 and SE 516 775 both define air supply units having outer layers of porous material, which means that they discharge air streams which unguided flow out in different directions and thereby cause undesired turbulence. Therefore, these air supply devices do not provide clean-air zones of optimum purity.
- EP 0 787 954 and DE 26 08 792 relate to conventional air distributors having demands upon good air distribution but without demands upon generating absolute pure zones of intake or supply air without admixture of surrounding impure air. These air distributors can provide a good air distribution with e.g. irregular air distribution within a larger area, which however does not mean that one can obtain a pure clean-air zone.
- The object of the present invention is to provide a simple air supply device for obtaining a pure zone of intake air. This is arrived at by providing the air supply device with the characterizing features of
subsequent claim 1. - The new air supply device is a simple device which is easy to keep clean and permits discharge of under-tempered air, improved directional effect on the supplied air and a more uniform air distribution, which results in less coejection of impure surrounding air and thereby formation of a clean-air zone of optimum purity.
- The invention will be further described below with reference to the accompanying drawings, in which
-
FIG. 1 is a side view of an air supply device according to the invention; -
FIG. 2 is a section through a portion of an intake air unit forming part of the air supply device; -
FIG. 3 is a view III-III of a portion of the air supply device ofFIG. 2 ; -
FIG. 4 illustrates a location of the air supply device ofFIG. 1 in premises; -
FIG. 5 schematically illustrates an air flow pattern provided by a prior art air supply device; -
FIG. 6 schematically illustrates an air flow pattern provided by the air supply device according to the invention; and -
FIG. 7 illustrates the location of the air supply device ofFIG. 1 in a space above a door. - The
air supply device 1 illustrated in the drawings is adapted to supply air A, preferably clean and/or cool air, topremises 2 inbuildings 3. Thisair supply device 1 is preferably located inupper parts 4 of thepremises 2 and comprises anintake air unit 5 which is at least partly directed downwards and which is provided to distribute the air A in uniformlydistributed air streams 6 in order to form azone 7 of clean air substantially beneath theair supply device 1. - At the embodiment of
FIGS. 1-4 , theintake air unit 5 comprises anair supply tube 8 which is located at the ceiling 9 in thepremises 2 and which can be directed downwards into said premises. Down below, theair supply tube 8 includes at least one airpermeable body 11 with at least oneinner part 12 and at least oneouter part 13. Thebody 11 is directed downwards or substantially downwards. - The
inner part 12 consists of or includesporous material 14 which is designed to offer resistance when air flows therethrough and said inner part can bring the air to flow therethrough as waved partial air streams 6 a. Theinner part 12 may have filtering properties for air flowing therethrough in order to obtain a low content of particles in thepremises 2. Theporous material 14 may be foamed plastic with preferably open cells. - The
outer part 13 of thebody 11 is non-porous and haveportions 15 forming or defining passages orchannels 16 which are rectilinear or substantially rectilinear, of uniform or substantially uniform thickness and located close to each other, and which extend in parallel or substantially in parallel relative to each other. The length L of eachpassage 16 is at least four times greater than its width B. By means of the design of thepassages 16 it is accomplished that eachpassage 16 provides for a good directional effect and generates a rectilinear partial air stream 6 b at the mouth 16 a of thepassage 16 and also farther away therefrom. Together the rectilinear partial air streams 6 b define a laminar intake air flow in said clean-air zone 7, which preferably is discharged at such low flow velocity that aturbulent zone 7 a formed or generated about the clean-air zone 7 will be very narrow and without strong air turbulence such that no or at least only small amounts of impure surrounding air is coejected by the intake air and mixed in the clean-air zone 7. - The supplied air A is preferably cooler than the air in the
premises 2, such that the air A in the clean-air zone 7 has a lower temperature than the surrounding air. - The
air streams 6 are generated by means of afan device 22 or similar, which is provided to give or impart to said air streams a low velocity and a sufficient dynamic velocity pressure (dp). A device 23 is provided to see to that theair streams 6 get a lower temperature than the surrounding air in thepremises 2 such that saidair streams 6 can be brought to flow to a low level in saidpremises 2. - The shape of the
body 11 provides for an optimum short pitch length. The pitch length is decelerated because PT=PD−PS (PT=total pressure, PD=dynamic pressure, PS=static pressure), where PS is lower adjacent thebody 11 than farther away from said body, whereby a negative pressure is generated which decelerates the air velocity and thus, the propagation and pitch length. This generates an inwardly directed force which, when thebody 11 is designed according to the invention, results in no or very little admixture of surrounding room air, but which, when thebody 11 is not correctly designed, causes admixture of surrounding room air. The shape of thebody 11 and the improved directional effect imparts a decelerating effect to the abovementioned inwardly directed force, resulting in a short pitch length. Thus, when the air has lost its dynamic velocity pressure (dp), the under-temperature takes over the guidance of the intake air such that it reaches the intended level in thepremises 2. Since thebody 11 has a shape which counteracts the contracting properties of cooled air (which gives thebody 11 an increasing velocity profile), a completely pure clean-air zone 7 is obtained within a restricted area. -
FIG. 5 illustrates what is happening at a prior art device. Here, non-parallel partial air streams 6 a are discharged, which instead are directed partially towards each other, which means that said partial air streams 6 a collide with each other and become turbulent. Hereby, a wideturbulent zone 7 a is generated around the clean-air zone 7 and outside thereof the air is subjected to substantial turbulence, which is shown with arrows. -
FIG. 6 illustrates with a similar view what is happening at a device according to the invention. Here, parallel partial air streams 6 a are discharged or exhausted, which means that these do not disturb each other when they flow out and thereby, a laminar air flow is generated without turbulence close to thebody 11 or farther out therefrom. This in turn results in that theturbulent zone 7 a around the clean-air zone 7 becomes more narrow and the turbulence around it less. - The partial air streams 6 a close to the
body 11 generate a microscopic laminar flow from eachpassage 16 which surprisingly results in a macroscopic, substantially less incorporation and mixing of surrounding air, which also results in that smaller amounts of surrounding air are drawn downwards in thepremises 2. - The
passages 16 may have a length L which is 4-10 times greater than their width B and they may preferably have a length L which is 4-6 times their width B. - The
passages 16 are preferably rectilinear or substantially rectilinear, and of uniform thickness. They are preferably circular in cross section and they preferably have the same or substantially the same diameter along their entire length L. Furthermore, they preferably all have the same shape and preferably the same length. - The
portions 15 defining the passages form together a continuous, rigidouter part 13 and thepassages 16 are preferably defined bytubes 17 which are located close beside each other, engage each other and are connected to each other. Thetubes 17 are preferably made of a plastic material and they are connected to each other preferably by fusing. - The air
permeable body 11 preferably has a cross-sectional shape in the form of parts of a circle or substantially a circle or primarily parts of a circle or substantially a circle, i.e. shapes as inFIGS. 1 and 4 . Another suitable cross-sectional shape for thebody 11 is a semicircular shape or substantially semicircular shape. Still another suitable cross-sectional shape for thebody 11 is the shape of a quarter of a circle or substantially a quarter of a circle, i.e. a shape as inFIG. 7 , but thebody 11 may have any other shape as parts of a circle or substantially a circle. - In the specific embodiment of
FIGS. 1 and 4 , thebody 11 is shaped or designed as a spherical segment or substantially as a spherical segment. - As is apparent from
FIG. 4 , theintake air unit 5 may be located beneath anupper zone 18 of thepremises 2, namely such anupper zone 18 closest to the ceiling 9 of thepremises 2 in which impure air is gathered and from which the impure air is ventilated through at least one air exhaust orair outlet 19 which preferably is provided at the ceiling 9. Hereby, it is ensured that the impure air from theupper zone 18 is not substantially coejected by theair streams 6 discharged by theair supply device 1. Furthermore, it is ensured that eventual turbulence in theupper zone 18 does not disturb the smooth flow of theair streams 6. - As is apparent from
FIG. 7 , theintake air unit 5 may be located above adoor 20 to thepremises 2 and it may be elongated and extend along at least a part of the width of thedoor 20. By locating theintake air unit 5 in this way, a curtain of clean air and/or cool air can be generated immediately within thedoor 20. - In order to filtrate the air A before it is fed into the
intake air unit 5, one can locate or mount afilter 21 in theair supply tube 8 or on any other suitable location. - The invention is not limited to the embodiments of the
air supply device 1 described above and illustrated in the drawings. Thus, thetubes 17 may e.g. be made of a metallic material or of a ceramic material or any other suitable material instead of a plastic material, theouter part 13 may be thicker than theinner part 12, at least theouter part 13 and preferably also theinner part 12 may consist of such heat resistant material that theair supply device 1 can substantially withstand fires and instead of anair outlet 19 located at the ceiling 9 of thepremises 2, at least one air outlet (not shown) can be located down below in thepremises 2. - The
air supply device 1 can be an intake air device with one or moreintake air units 5 and/or be a device for air circulation. The device 23 can be a device taking in cool air and/or including a cooling device or be a cooling device for cooling air.
Claims (22)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0302201-9 | 2003-08-13 | ||
SE0302201A SE0302201D0 (en) | 2003-08-13 | 2003-08-13 | Air Supply Arrangement |
PCT/SE2004/001182 WO2005017419A1 (en) | 2003-08-13 | 2004-08-12 | Air supply device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060252364A1 true US20060252364A1 (en) | 2006-11-09 |
Family
ID=27800879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/567,914 Abandoned US20060252364A1 (en) | 2003-08-13 | 2004-08-12 | Air supply device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060252364A1 (en) |
EP (1) | EP1654501B1 (en) |
AT (1) | ATE445813T1 (en) |
DE (1) | DE602004023618D1 (en) |
ES (1) | ES2333433T3 (en) |
SE (1) | SE0302201D0 (en) |
WO (1) | WO2005017419A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100120349A1 (en) * | 2008-10-31 | 2010-05-13 | Airsonett Ab | Surgical theater ventilating devices and methods |
US20100291859A1 (en) * | 2007-05-03 | 2010-11-18 | Dan Allan Robert Kristensson | Ventilating device for providing a zone of clean air. |
US8444747B2 (en) | 2009-10-07 | 2013-05-21 | Airsonett Ab | Methods and devices for displacing body convection and providing a controlled personal breathing zone |
WO2019206385A2 (en) | 2018-04-24 | 2019-10-31 | Tiny Wolf Ivs | A diffuser head and an air cleaning apparatus comprising same |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0401746D0 (en) * | 2004-07-05 | 2004-07-05 | Camfil Ab | In air filter unit |
SE532219C2 (en) | 2006-02-28 | 2009-11-17 | Airsonett Ab | Method and apparatus for providing a clean air zone at an operating area in the medical field and use of said device |
NL1032941C2 (en) * | 2006-11-24 | 2008-05-27 | Bo Air Luchtbehandeling B V | Air distributor for air conditioning system, includes porous part through which air is blown |
GB0819534D0 (en) * | 2008-10-24 | 2008-12-03 | Marine Systems Technology Ltd | Noise reduction in ducted air systems |
WO2010100559A1 (en) | 2009-03-05 | 2010-09-10 | Airsonett Ab | Surgical instrument table ventilation devices and methods |
ES2569515T3 (en) | 2010-03-16 | 2016-05-11 | Airsonett Ab | Treatment of asthma, allergic rhinitis and improvement of sleep quality through temperature-controlled laminar airflow treatment |
CN103608626A (en) | 2011-04-06 | 2014-02-26 | 阿桑勒公司 | Temperature controlled laminair air flow device |
DK2881675T3 (en) * | 2013-12-03 | 2019-01-14 | Avidicare Ab | Air Supply System |
EP4228580A1 (en) | 2020-10-14 | 2023-08-23 | Airsonett AB | Improved device for providing a clean air zone, e.g. a controlled personal breathing zone |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5167577A (en) * | 1990-08-22 | 1992-12-01 | Kristensson Jan Ake Allan | Intake air unit |
US5221348A (en) * | 1991-11-26 | 1993-06-22 | Masano Thomas C | High pressure glue injector |
US5292067A (en) * | 1991-03-01 | 1994-03-08 | Imperial Chemical Industries Plc | Apparatus and method for ligament mode electrostatic spraying |
US5716268A (en) * | 1997-02-18 | 1998-02-10 | Plymovent Ab | Device for removal of deleterious impurities from room atmosphere |
US5765743A (en) * | 1996-06-13 | 1998-06-16 | Fujitsu Limited | Outdoor installation type cabinet |
US5858469A (en) * | 1995-11-30 | 1999-01-12 | Sermatech International, Inc. | Method and apparatus for applying coatings using a nozzle assembly having passageways of differing diameter |
US5905133A (en) * | 1996-06-28 | 1999-05-18 | Bayer Aktiengesellschaft | Process for the continuous production of thermoplastically processable polyurethanes having improved processing behavior |
US5928076A (en) * | 1997-09-25 | 1999-07-27 | Hewlett Packard Company | EMI-attenuating air ventilation panel |
US6132318A (en) * | 1997-07-01 | 2000-10-17 | Scs Interactive, Inc. | Interactive funhouse play structure |
US6214303B1 (en) * | 1995-01-20 | 2001-04-10 | Engelhard Corporation | Method and apparatus for treating the atmosphere |
US6248153B1 (en) * | 1996-12-09 | 2001-06-19 | 3M Innovative Properties Company | Diffusional gas transfer system and method of using same |
US6368207B1 (en) * | 2000-08-25 | 2002-04-09 | Delphi Technologies, Inc. | Automotive heating, ventilating and air conditioning module with improved air mixing |
US20020064038A1 (en) * | 2000-11-25 | 2002-05-30 | Ryszard Kummerfeld | Surgical lamp assembly for mounting on a ceiling |
US6702662B2 (en) * | 2000-06-05 | 2004-03-09 | Jan Kristensson | Method for providing clean air in premises and device for carrying through said method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2608792A1 (en) | 1976-03-03 | 1977-09-08 | Josef Piederstorfer | Multiple nozzle for producing radial air flow displacement - has honeycomb arrangement of conical nozzles in curved surface |
DE4014795C1 (en) * | 1990-05-09 | 1992-02-06 | Daldrop & Dr. Ing. Huber Gmbh & Co, 7441 Neckartailfingen, De | Clean room or operating theatre - incorporates laminar flow ceiling outlets for clean air |
SE506210C2 (en) * | 1994-09-01 | 1997-11-24 | Kurt Belin | Front body for ventilation |
NO310792B1 (en) | 1996-01-30 | 2001-08-27 | Hesco Pilgersteg Ag | air outlet |
DE19958659A1 (en) * | 1999-12-06 | 2001-06-07 | Duerr Systems Gmbh | Cell for surface treating workpieces has roof wall with air outlet area whose outlet surface has partial area with local surface normal directed into interior of cell underneath remaining area of roof for better air flow and dust removal |
-
2003
- 2003-08-13 SE SE0302201A patent/SE0302201D0/en unknown
-
2004
- 2004-08-12 EP EP04775304A patent/EP1654501B1/en not_active Not-in-force
- 2004-08-12 AT AT04775304T patent/ATE445813T1/en not_active IP Right Cessation
- 2004-08-12 US US10/567,914 patent/US20060252364A1/en not_active Abandoned
- 2004-08-12 ES ES04775304T patent/ES2333433T3/en active Active
- 2004-08-12 DE DE602004023618T patent/DE602004023618D1/en active Active
- 2004-08-12 WO PCT/SE2004/001182 patent/WO2005017419A1/en active Application Filing
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5167577A (en) * | 1990-08-22 | 1992-12-01 | Kristensson Jan Ake Allan | Intake air unit |
US5292067A (en) * | 1991-03-01 | 1994-03-08 | Imperial Chemical Industries Plc | Apparatus and method for ligament mode electrostatic spraying |
US5221348A (en) * | 1991-11-26 | 1993-06-22 | Masano Thomas C | High pressure glue injector |
US6214303B1 (en) * | 1995-01-20 | 2001-04-10 | Engelhard Corporation | Method and apparatus for treating the atmosphere |
US5858469A (en) * | 1995-11-30 | 1999-01-12 | Sermatech International, Inc. | Method and apparatus for applying coatings using a nozzle assembly having passageways of differing diameter |
US5765743A (en) * | 1996-06-13 | 1998-06-16 | Fujitsu Limited | Outdoor installation type cabinet |
US5905133A (en) * | 1996-06-28 | 1999-05-18 | Bayer Aktiengesellschaft | Process for the continuous production of thermoplastically processable polyurethanes having improved processing behavior |
US6248153B1 (en) * | 1996-12-09 | 2001-06-19 | 3M Innovative Properties Company | Diffusional gas transfer system and method of using same |
US5716268A (en) * | 1997-02-18 | 1998-02-10 | Plymovent Ab | Device for removal of deleterious impurities from room atmosphere |
US6132318A (en) * | 1997-07-01 | 2000-10-17 | Scs Interactive, Inc. | Interactive funhouse play structure |
US5928076A (en) * | 1997-09-25 | 1999-07-27 | Hewlett Packard Company | EMI-attenuating air ventilation panel |
US5928076C1 (en) * | 1997-09-25 | 2001-04-24 | Hewlett Packard Co | Emi-attenuating air ventilation panel |
US6702662B2 (en) * | 2000-06-05 | 2004-03-09 | Jan Kristensson | Method for providing clean air in premises and device for carrying through said method |
US6368207B1 (en) * | 2000-08-25 | 2002-04-09 | Delphi Technologies, Inc. | Automotive heating, ventilating and air conditioning module with improved air mixing |
US20020064038A1 (en) * | 2000-11-25 | 2002-05-30 | Ryszard Kummerfeld | Surgical lamp assembly for mounting on a ceiling |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100291859A1 (en) * | 2007-05-03 | 2010-11-18 | Dan Allan Robert Kristensson | Ventilating device for providing a zone of clean air. |
US8308536B2 (en) | 2007-05-03 | 2012-11-13 | Airsonett Operating Room Innovation Ab | Ventilating device for providing a zone of clean air |
US20100120349A1 (en) * | 2008-10-31 | 2010-05-13 | Airsonett Ab | Surgical theater ventilating devices and methods |
US8444747B2 (en) | 2009-10-07 | 2013-05-21 | Airsonett Ab | Methods and devices for displacing body convection and providing a controlled personal breathing zone |
WO2019206385A2 (en) | 2018-04-24 | 2019-10-31 | Tiny Wolf Ivs | A diffuser head and an air cleaning apparatus comprising same |
Also Published As
Publication number | Publication date |
---|---|
EP1654501B1 (en) | 2009-10-14 |
DE602004023618D1 (en) | 2009-11-26 |
ATE445813T1 (en) | 2009-10-15 |
ES2333433T3 (en) | 2010-02-22 |
EP1654501A1 (en) | 2006-05-10 |
WO2005017419A1 (en) | 2005-02-24 |
SE0302201D0 (en) | 2003-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1654501B1 (en) | Air supply device | |
US5167577A (en) | Intake air unit | |
EP2881675B1 (en) | An air supply system | |
US8308536B2 (en) | Ventilating device for providing a zone of clean air | |
JP2010520436A (en) | Gas diffusion device | |
SE0901265A1 (en) | Cooling beam with VAV function via the control rail | |
JP2002506194A (en) | Molded polymer air diffusion screen | |
JP4185820B2 (en) | Air outlet and air conditioning method using the same | |
FI119126B (en) | Supply Unit | |
JP2008032261A (en) | Air conditioner and ventilating duct | |
CN109405075A (en) | Air conditioner | |
JP3333904B2 (en) | Internal structure of outlet | |
CN207262677U (en) | Wind shield and indoor apparatus of air conditioner | |
JPH0666439A (en) | Clean room and air supply unit | |
JP3793854B2 (en) | Multi-layer cone type anti-condensation outlet | |
FI72800C (en) | Ventilation. | |
JPS5918614B2 (en) | fluid deflection device | |
CN105864891A (en) | Wall-mounted type air conditioner | |
JPH10220856A (en) | Air blowing device for air conditioner | |
JP2000074473A (en) | Induction type air outlet device additionally functioning as supply of low and high temperature air | |
JPH07324801A (en) | Outlet grille | |
JP2021517632A (en) | A device that diffuses the air volume flow | |
CN108431508A (en) | Feeder | |
CN108825556A (en) | Air guide structure and fan | |
JP2002372294A (en) | Air outlet port for air-conditioning |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AIRSON AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KRISTENSSON, JAN;KRISTENSSON, DAN;SVENSSON, PAL;REEL/FRAME:017569/0911;SIGNING DATES FROM 20060112 TO 20060113 |
|
AS | Assignment |
Owner name: AIRSONETT AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AIRSON AB;REEL/FRAME:025140/0184 Effective date: 20101006 |
|
AS | Assignment |
Owner name: AIRSONETT HOMECARE AB (556893-9577), SWEDEN Free format text: CONFIRMATION ASSIGNMENT;ASSIGNOR:AIRSONETT AB (556593-8775);REEL/FRAME:029839/0184 Effective date: 20130201 |
|
AS | Assignment |
Owner name: AIRSONETT AB (556823-9577), SWEDEN Free format text: CHANGE OF NAME;ASSIGNOR:AIRSONETT HOMECARE AB (556893-9577);REEL/FRAME:029860/0585 Effective date: 20120104 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |