Patents by Inventor Lars Malmqvist
Lars Malmqvist 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: 20240105399Abstract: A handheld power tool (1) is disclosed comprising a handle (20) and a trigger element (30) extending along a curved portion of the handle (20) and being movably arranged relative to the handle (20). The power tool (1) further comprises a spring assembly (8) configured to bias the trigger element (30) towards an unactuated position relative to the handle (20) and a switch (10) configured to switch from a first state to a second state when the trigger element (30) is moved from the unactuated position. The spring assembly (8) comprises a follower (9) and a spring member (13) configured to bias the follower (9) in a first direction (d1) against a sliding surface (18) of one of the handle (20) and the trigger element (30) to bias the trigger element (30) towards the unactuated position. The follower (9) is slidably arranged relative to the sliding surface (18) along a second direction (d2) being perpendicular to the first direction (d1).Type: ApplicationFiled: September 21, 2023Publication date: March 28, 2024Inventors: Per-Anders Bülow, Stefan Kullberg, Richard Hall, Lars Malmqvist
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Patent number: 10232502Abstract: A method of cooling blower components may include rotating a fan assembly (160) responsive to operation of a motor (120). The rotation of the fan assembly may create an underpressure region in an inlet portion (154) and an overpressure region at a main channel (340) of the fan assembly (160). The method may further include drawing air into the inlet portion (154) through a control unit housing portion (132) of a housing (110) of the blower (100) to cool a control unit (130) of the blower (100), drawing air into the inlet portion (154) through a battery compartment (142) to cool a battery (140) of the blower (100), and pushing air from the main channel (340) through a motor housing (320) to cool the motor (120).Type: GrantFiled: March 17, 2014Date of Patent: March 19, 2019Assignee: HUSQVARNA ABInventors: Christian Bylund, Tobias Nyberg, Lars Malmqvist, Pär Martinsson, Andreas Levander, Jan Lejon, Fredrik Wibling, Jonas Haglind
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Publication number: 20170021489Abstract: A method of cooling blower components may include rotating a fan assembly (160) responsive to operation of a motor (120). The rotation of the fan assembly may create an underpressure region in an inlet portion (154) and an overpressure region at a main channel (340) of the fan assembly (160). The method may further include drawing air into the inlet portion (154) through a control unit housing portion (132) of a housing (110) of the blower (100) to cool a control unit (130) of the blower (100), drawing air into the inlet portion (154) through a battery compartment (142) to cool a battery (140) of the blower (100), and pushing air from the main channel (340) through a motor housing (320) to cool the motor (120).Type: ApplicationFiled: March 17, 2014Publication date: January 26, 2017Inventors: Christian Bylund, Tobias Nyberg, Lars Malmqvist, Pär Martinsson, Andreas Levander, Jan Lejon, Fredrik Wibling, Jonas Haglind
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Patent number: 8359704Abstract: An engine blower includes: an engine integrated with a volute for driving a fan; a ventilation tube communicated with the volute; and a handle mounted to the ventilation tube. In the engine blower, the handle has a pair of cases that are assembled with each other, and a conductive resin layer is formed on a surface of a grip of the handle. The resin layer is integrated with gates exposed within the handle. A conductive spring having a coil compressed in a direction in which the cases are assembled with each other and a cable that is electrically coupled with the engine are disposed within the handle. The gate of the resin layer is brought into contact with the coil of the spring and is electrically coupled with the cable via the spring.Type: GrantFiled: January 8, 2009Date of Patent: January 29, 2013Assignee: Husqvarna Zenoah Co., Ltd.Inventors: Maki Yamazaki, Lars Malmqvist
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Patent number: 8262370Abstract: Arrangement in a blower including at least an engine and a fan, the fan includes a fan housing enclosing a fan wheel and a fan inlet. The engine and fan are surrounded by a casing provided with an air inlet to let air in to the fan inlet placed inside the casing. The air stream from the air inlet in the housing to the fan inlet cools the engine and components inside the casing before it enters the fan inlet and leaves the blower via a blower tube. The fan housing is provided with an opening (31) placed in the fan housing so that air is allowed to leave the fan in case of blocked air stream in the fan outlet or blower tube.Type: GrantFiled: November 18, 2004Date of Patent: September 11, 2012Assignee: Husqvarna ABInventors: Mikael Kågebäck, Andreas Larsson, Lars Malmqvist, Andreas Hedlund, Lotta Norinder, Anna Sjögren, Anders Jakobsson
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Publication number: 20110000048Abstract: An engine blower includes: an engine integrated with a volute for driving a fan; a ventilation tube communicated with the volute; and a handle mounted to the ventilation tube. In the engine blower, the handle has a pair of cases that are assembled with each other, and a conductive resin layer is formed on a surface of a grip of the handle. The resin layer is integrated with gates exposed within the handle. A conductive spring having a coil compressed in a direction in which the cases are assembled with each other and a cable that is electrically coupled with the engine are disposed within the handle. The gate of the resin layer is brought into contact with the coil of the spring and is electrically coupled with the cable via the spring.Type: ApplicationFiled: January 8, 2009Publication date: January 6, 2011Applicant: Husqvarna Zenoah Co., Ltd.Inventors: Maki Yamazaki, Lars Malmqvist
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Publication number: 20070092384Abstract: Arrangement in a blower comprising at least an engine and a fan, said fan comprises a fan housing enclosing a fan wheel and a fan inlet. The engine and fan are surrounded by a casing provided with an air inlet to let air in to the fan inlet placed inside the casing. The air stream from the air inlet in the housing to the fan inlet cools the engine and components inside the casing before it enters the fan inlet and leaves the blower via a blower tube. The fan housing is provided with an opening (31) placed in the fan housing so that air is allowed to leave the fan in case of blocked air stream in the fan outlet or blower tube.Type: ApplicationFiled: November 18, 2004Publication date: April 26, 2007Applicant: AKTIEBOLAGET ELECTROLUXInventors: Mikael Kageback, Andreas Larsson, Lars Malmqvist, Andreas Hedlund, Lotta Norinder, Anna Sjogren, Anders Jakobsson
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Patent number: 6217439Abstract: A climate control unit (4) for excavators (2), comprises a fan (6) arranged in a first opening (8) in an operator cab wall (10) of the excavator (2), at least one main filter (24) arranged to cover the first opening (8) and a first cover (26) arranged over the main filter (24) and the first opening (8). The first cover (26) has a first inlet opening (28) in which a prefilter (30) is arranged.Type: GrantFiled: October 6, 1998Date of Patent: April 17, 2001Assignee: Volvo Wheel Loaders ABInventors: Bo Janeling, Lars Malmqvist
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Patent number: 6002744Abstract: A method for generating X- or EUV-radiation via laser plasma emission, in which at least one target (17) is generated in a chamber, and at least one pulsed laser beam (3) is focused on the target in the chamber. The target is generated in the form of a jet (17) of a liquid, and the laser beam (3) is focused on a spatially continuous portion of the jet (17). An apparatus for generating X- or EUV-radiation via laser plasma emission according to the method comprises a means for generating at least one laser beam (3), a chamber, a means (10) for generating at least one target (17) in the chamber, and a means (13) for focusing the laser beam (3) on the target (17) in the chamber (8). The target-generating means (10) is adapted to generate a jet (17) of a liquid. The focusing means (13) is adapted to focus the laser beam (3) on a spatially continuous portion of the jet (17).Type: GrantFiled: October 21, 1998Date of Patent: December 14, 1999Assignee: Jettec ABInventors: Hans M. Hertz, Lars Malmqvist, Lars Rymell, Magnus Berglund
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Patent number: D481497Type: GrantFiled: February 19, 2003Date of Patent: October 28, 2003Assignee: Aktiebolaget ElectroluxInventors: Lars Malmqvist, Anna Sjögren, Lotta Norinder, Tommy Krevi, Ola Holmgren, Christer Almqvist, Gustav Döragrip, Andreas Hedlund, Evalena Sandberg, Anders Jakobsson