Patents by Inventor Johan Wennerstrom
Johan Wennerstrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230012214Abstract: A filter device for filtering water. The device includes a housing, for submersion in a water reservoir, that includes an intake aperture for intake of water from the reservoir and a return aperture for returning water to the reservoir. The housing extends along an axis. The device includes a pump, housed in the housing, arranged on the axis to direct fluid from the intake aperture to the return aperture. The device includes a filter arrangement, housed in the housing, arranged along the axis from the pump in a fluid path between the intake aperture and the return aperture.Type: ApplicationFiled: July 6, 2022Publication date: January 12, 2023Inventor: Johan Wennerström
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Patent number: 10099225Abstract: An air cleaning device for separating airborne particles from a flow of air is provided. The air cleaning device comprises a separating unit and an ionizing unit arranged to charge airborne particles present in the flow of air and transmit at least a major part of the charged particles towards the separating unit. The ionizing unit comprises at least one collector electrode and at least one emitter electrode. The separating unit is arranged to attract at least some of the charged particles so as to separate them from the flow of air. Further, the at least one collector electrode is shaped so as to conduct at least a portion of the flow of air and has a spherically curved inner surface and the emitter electrode is centered with respect to the spherically curved inner surface of the collector electrode.Type: GrantFiled: May 10, 2016Date of Patent: October 16, 2018Assignee: BLUEAIR ABInventor: Johan Wennerstrom
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Patent number: 9919587Abstract: A vehicle is provided including a cabin, a conduit arranged to conduct a flow of air from outside the vehicle to the cabin, and a filter unit arranged to filter at least a portion of the flow of air before it enters the cabin. Further, an ionizing unit is arranged in the conduit upstream of the filter unit as seen in the direction of the flow of air so as to charge particles present in the flow of air and transmit at least a major part of the charged particles towards the filter unit. The at least one collector electrode has a tube-like shape arranged to conduct at least a portion of the flow of air, and the at least one emitter electrode is arranged at a central axis of the tube-like shaped collector electrode, whereby a more uniform ionization field is provided.Type: GrantFiled: February 2, 2016Date of Patent: March 20, 2018Assignee: BLUEAIR ABInventor: Johan Wennerström
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Patent number: 9919252Abstract: An air purifier device is provided including a fan unit including a fan arranged to produce an air flow through the air purifier device, and a filter unit including a filter arranged to filter the air flow produced by the fan. The filter unit is adapted to stand on a support surface when the air purifier device is positioned for use. The air purifier device further includes a coupling mechanism arranged to secure the fan unit on top of the filter unit. The coupling mechanism includes two release means arranged on opposite outer sides of the fan unit, and the fan unit is releasable from the filter unit by actuating the two release means. The filter unit may be removed from the fan unit by a single action (or movement) by the user, whereby filter replacement of the air purifier device is facilitated.Type: GrantFiled: November 20, 2014Date of Patent: March 20, 2018Assignee: BLUEAIR ABInventors: Johan Wennerström, Elin Engberg
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Patent number: 9694369Abstract: An air purifier device includes a chamber defined by a side wall arranged to guide an air flow through the air purifier device. The air purifier device further includes at least one emitter electrode and at least one collector plate electrode arranged to ionize airborne particles. The at least one emitter electrode is arranged to extend from the side wall and inwards in the chamber and the at least one collector plate electrode is arranged to extend from the side wall and inwards in the chamber. The air purifier device enables the side wall to be manufactured from e.g. plastic, or other non-conductive or non-magnetic material. This in turn may enable a lower weight of the air purifier device and facilitated manufacturing, as the side walls of the chamber e.g. may be formed by plastic moulding just as many other parts of the air purifier device.Type: GrantFiled: November 20, 2014Date of Patent: July 4, 2017Assignee: BLUEAIR ABInventors: Elin Engberg, Johan Wennerström
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Patent number: 9636617Abstract: An air purifier device is provided including a fan arranged to produce an air flow through the air purifier device, and a fan duct for guiding the air flow produced by the fan. The fan duct extends in an upright direction of the air purifier device. The air purifier device further includes an air intake arranged below a lower end of the fan duct, and an exhaust arranged at an upper end of the fan duct so as to exhaust purified air in an upward direction from the air purifier device when the air purifier device is in use. The fan duct is flared in direction from an intermediate portion of the fan duct towards both it ends, and the fan is arranged at least partly in the intermediate portion. A facilitated circulation of air through the room and through the air purifier device standing in the room is provided.Type: GrantFiled: November 20, 2014Date of Patent: May 2, 2017Assignee: BLUEAIR ABInventors: Johan Wennerström, Elin Engberg
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Publication number: 20160332170Abstract: An air cleaning device for separating airborne particles from a flow of air is provided. The air cleaning device comprises a separating unit and an ionizing unit arranged to charge airborne particles present in the flow of air and transmit at least a major part of the charged particles towards the separating unit. The ionizing unit comprises at least one collector electrode and at least one emitter electrode. The separating unit is arranged to attract at least some of the charged particles so as to separate them from the flow of air. Further, the at least one collector electrode is shaped so as to conduct at least a portion of the flow of air and has a spherically curved inner surface and the emitter electrode is centered with respect to the spherically curved inner surface of the collector electrode.Type: ApplicationFiled: May 10, 2016Publication date: November 17, 2016Applicant: Blueair ABInventor: Johan Wennerstrom
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Publication number: 20160229267Abstract: A vehicle is provided including a cabin, a conduit arranged to conduct a flow of air from outside the vehicle to the cabin, and a filter unit arranged to filter at least a portion of the flow of air before it enters the cabin. Further, an ionizing unit is arranged in the conduit upstream of the filter unit as seen in the direction of the flow of air so as to charge particles present in the flow of air and transmit at least a major part of the charged particles towards the filter unit. The at least one collector electrode has a tube-like shape arranged to conduct at least a portion of the flow of air, and the at least one emitter electrode is arranged at a central axis of the tube-like shaped collector electrode, whereby a more uniform ionization field is provided.Type: ApplicationFiled: February 2, 2016Publication date: August 11, 2016Applicant: Blueair ABInventor: Johan WENNERSTRÖM
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Publication number: 20150231542Abstract: An air purifier device is provided including a fan unit including a fan arranged to produce an air flow through the air purifier device, and a filter unit including a filter arranged to filter the air flow produced by the fan. The filter unit is adapted to stand on a support surface when the air purifier device is positioned for use. The air purifier device further includes a coupling mechanism arranged to secure the fan unit on top of the filter unit. The coupling mechanism includes two release means arranged on opposite outer sides of the fan unit, and the fan unit is releasable from the filter unit by actuating the two release means. The filter unit may be removed from the fan unit by a single action (or movement) by the user, whereby filter replacement of the air purifier device is facilitated.Type: ApplicationFiled: November 20, 2014Publication date: August 20, 2015Inventors: Johan WENNERSTRÖM, Elin ENGBERG
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Publication number: 20150231543Abstract: An air purifier device is provided including a fan arranged to produce an air flow through the air purifier device, and a fan duct for guiding the air flow produced by the fan. The fan duct extends in an upright direction of the air purifier device. The air purifier device further includes an air intake arranged below a lower end of the fan duct, and an exhaust arranged at an upper end of the fan duct so as to exhaust purified air in an upward direction from the air purifier device when the air purifier device is in use. The fan duct is flared in direction from an intermediate portion of the fan duct towards both it ends, and the fan is arranged at least partly in the intermediate portion. A facilitated circulation of air through the room and through the air purifier device standing in the room is provided.Type: ApplicationFiled: November 20, 2014Publication date: August 20, 2015Applicant: Blueair ABInventors: Johan WENNERSTRÖM, Elin Engberg
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Publication number: 20150231645Abstract: An air purifier device includes a chamber defined by a side wall arranged to guide an air flow through the air purifier device. The air purifier device further includes at least one emitter electrode and at least one collector plate electrode arranged to ionize airborne particles. The at least one emitter electrode is arranged to extend from the side wall and inwards in the chamber and the at least one collector plate electrode is arranged to extend from the side wall and inwards in the chamber. The air purifier device enables the side wall to be manufactured from e.g. plastic, or other non-conductive or non-magnetic material. This in turn may enable a lower weight of the air purifier device and facilitated manufacturing, as the side walls of the chamber e.g. may be formed by plastic moulding just as many other parts of the air purifier device.Type: ApplicationFiled: November 20, 2014Publication date: August 20, 2015Applicant: BLUEAIR ABInventors: Elin ENGBERG, Johan WENNERSTRÖM
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Patent number: 7323104Abstract: A water filter device includes a container (1) that has an opening for filling of water, and a filter unit (3) that is movable relative to the container (1). It is significant of the device that the filter unit (3) includes a filter element (5), an operating rod (7) connected to the filter element (5) and sealing means (14) along the periphery of the filter element (5), and that the filter element (5) has a particle filter (10) and an adsorption filter (11).Type: GrantFiled: June 29, 2004Date of Patent: January 29, 2008Assignee: Blue Air ABInventor: Johan Wennerström
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Publication number: 20060151381Abstract: A water filter device includes a container (1) that has an opening for filling of water, and a filter unit (3) that is movable relative to the container (1). It is significant of the device that the filter unit (3) includes a filter element (5), an operating rod (7) connected to the filter element (5) and sealing means (14) along the periphery of the filter element (5), and that the filter element (5) has a particle filter (10) and an adsorption filter (11).Type: ApplicationFiled: June 29, 2004Publication date: July 13, 2006Inventor: Johan Wennerstrom
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Patent number: 6790259Abstract: An improved method is disclosed for cleaning a flow of gaseous fluid, such as room air, from particles present in the fluid, the gaseous fluid being ionized, and using a conductive grid placed across and upstream of the filter for protecting the filter from being charged by free ions. An air purifier filter cartridge using the ion-intercepting grid of the invention is also disclosed. The grid may be connected to or electrically insulated from the ionizer ground potential, with equal effect.Type: GrantFiled: January 16, 2003Date of Patent: September 14, 2004Assignee: Blueair ABInventors: Bengt Rittri, Johan Wennerstrom
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Publication number: 20040139854Abstract: An improved method is disclosed for cleaning a flow of gaseous fluid, such as room air, from particles present in the fluid, the gaseous fluid being ionized, and using a conductive grid placed across and upstream of the filter for protecting the filter from being charged by free ions. An air purifier filter cartridge using the ion-intercepting grid of the invention is also disclosed. The grid may be connected to or electrically insulated from the ionizer ground potential, with equal effect.Type: ApplicationFiled: January 16, 2003Publication date: July 22, 2004Inventors: Bengt Rittri, Johan Wennerstrom
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Patent number: D549314Type: GrantFiled: September 8, 2006Date of Patent: August 21, 2007Assignee: Blue Air ABInventor: Johan Wennerstrom
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Patent number: D580539Type: GrantFiled: September 8, 2006Date of Patent: November 11, 2008Assignee: Blueair ABInventors: Bengt Rittri, Johan Wennerstrom
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Patent number: D591412Type: GrantFiled: October 2, 2008Date of Patent: April 28, 2009Assignee: Blueair ABInventors: Bengt Rittri, Johan Wennerstrom
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Patent number: D591413Type: GrantFiled: October 2, 2008Date of Patent: April 28, 2009Assignee: Blueair ABInventors: Bengt Rittri, Johan Wennerstrom
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Patent number: D797914Type: GrantFiled: August 27, 2014Date of Patent: September 19, 2017Assignee: BLUEAIR ABInventors: Joakim Nygren, Johan Wennerström