Patents by Inventor Hakan Larsson
Hakan Larsson 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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Patent number: 8661574Abstract: The present invention relates to a drain which comprises an inlet member (1), a grating (13) or cover plate laid loosely or detachably on top of the inlet member, and an outlet member (2). To achieve a short line of contact between the surface covering's sealing layer (6) and the drain while at the same time the sealing layer is fastened by means of a clamping ring (5) or a bonding flange, thereby reducing the risk of leakage and affording the possibility of connecting an aesthetically more pleasing inlet member (1), the inlet member (1) takes the form of an elongate or trilateral plate-like element (11) disposed on top of the sealing layer or the sealing layer (6) and the clamping ring (5) and provided with a recess (12) for flow communication with the outlet member (2). The present invention relates also to an inlet member (1) for a drain as above.Type: GrantFiled: February 10, 2009Date of Patent: March 4, 2014Assignee: Purus ABInventor: Hakan Larsson
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Patent number: 8596343Abstract: A plate heat exchanger including a plurality of heat exchanger plates (1), a first end plate and a second end plate. The plates are permanently joined to each other by means of a braze material. Each heat exchanger plate has a heat transfer area and a plurality of porthole areas surrounding a respective porthole. The plate heat exchanger including a plurality of having a bottom surface turned towards the heat exchanger plates. At least one of the flat elements including an annular protrusion extending from the bottom surface and tightly abutting one of the porthole areas of the outermost heat exchanger plate.Type: GrantFiled: April 4, 2008Date of Patent: December 3, 2013Assignee: Alfa Laval Corporate ABInventors: Rolf Christensen, Fredrik Andreasson, Rolf Bermhult, Håkan Larsson, Magnus Svensson
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Publication number: 20130220985Abstract: A welding device applies weld material between two work pieces (P1, P2) so as to connect the work pieces (P1, P2) mechanically with one another. The welding device has a welding head (110) and a probe head (120). The welding head (110) performs a welding action in respect of the work pieces (P1, P2) during transport of the welding device along an operating direction (OD) in a welding plane (WP); and the probe head (120), which is arranged upstream of the welding head (110) relative to the operating direction (OD), measures a set of geometric properties of a gap (G) between the work pieces (P1, P2). Thus, the welding head (110) can be properly positioned to attain a desired application of the weld material in the gap (G).Type: ApplicationFiled: October 28, 2010Publication date: August 29, 2013Applicant: ESAB ABInventors: Hakan Larsson, Pasi Rajala
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Patent number: 8448835Abstract: A welding crane (1) for welding large structures is described. The welding crane (1) comprises a base part (2) which is arranged to be positioned on a ground (3), a mast (4) with a longitudinal axis (5). The mast (4) can be arranged in at least a first position in which the longitudinal axis (5) of the mast (4) extends substantially vertically from the base part (2). A boom (6) with a longitudinal axis (7) is arranged on the mast. The boom (6) can be arranged in at least a first position in which the longitudinal axis (7) of the boom (6) is substantially perpendicular to the longitudinal axis (5) of the mast (4). The boom (6) is arranged for receiving a welding head (13). The boom (6) is rotatable in relation to the mast (4) such that the boom (6) can be arranged in a second position in which the longitudinal axis (7) of the boom (6) is substantially parallel with the longitudinal axis (5) of the mast (4).Type: GrantFiled: June 23, 2009Date of Patent: May 28, 2013Assignee: ESAB ABInventor: Håkan Larsson
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Patent number: 8353052Abstract: A method may include sending personal network connection information from a mobile device to a guest device; sending authentication credentials from the mobile device to the guest device; receiving the authentication credentials in the personal network from the guest device; authenticating the guest device based on the authentication credentials; and granting access to the guest device to content stored in the personal network for a guest session.Type: GrantFiled: November 9, 2007Date of Patent: January 8, 2013Assignee: Sony Mobile Communications ABInventors: Bo Håkan Larsson, Bengt Gunnar Stavenow, Jan Robert Tobias Ritzau, Henrik Sven Bengtsson, Anders Wilhelm Östsjö, Sten Håkan Minör
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Patent number: 8162028Abstract: A high load operation industrial roll door, including a flexible door curtain windable about a top roll positioned above a door opening and provided with a drive system. The roll door includes a bottom beam fastened to the door curtain, and a biasing spring, for resisting movement of the door upon application of a load thereon, and a positive stop preventing movement of the biasing means beyond a predetermined point.Type: GrantFiled: May 2, 2005Date of Patent: April 24, 2012Assignee: Assa Abloy Entrance Systems ABInventors: Mikael Bengtsson, Hakan Larsson, Raymond Sauve, Holger Siewert, Jan Victor, Kent Palsson
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Patent number: 8109326Abstract: The invention relates to a heat transfer plate (1) intended to constitute, together with other heat transfer plates, a plate stack (2) with permanently connected plates for a heat exchanger (3), which heat transfer plate (1) has a first long side (4) and an opposite second long side (5), a first short side (6) and an opposite second short side (7), a heat transfer surface (8) exhibiting a pattern (9) of ridges (10) and valleys (11), first and second port regions (12 and 13), the first port region (12) being situated in a first corner portion (14) formed at the meeting between the first long side (4) and the first short side (6), the second port region (13) being situated in a second corner portion (15) formed at the meeting between the second long side (5) and the first short side (6), and the first port region (12) being connected to a number of ridges (10a-d) and valleys (11a-e), which ridges (10a-d) and valleys (11a-e) have in principle an extent from the first port region (12) diagonally towards the seconType: GrantFiled: December 21, 2006Date of Patent: February 7, 2012Assignee: Alfa Laval Corporate ABInventors: Hakan Larsson, Thord Gudmundsson, Kerstin Drakarve
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Publication number: 20110303595Abstract: The present invention relates to a drain which comprises an inlet member (1), a grating (13) or cover plate laid loosely or detachably on top of the inlet member, and an outlet member (2). To achieve a short line of contact between the surface covering's sealing layer (6) and the drain while at the same time the sealing layer is fastened by means of a clamping ring (5) or a bonding flange, thereby reducing the risk of leakage and affording the possibility of connecting an aesthetically more pleasing inlet member (1), the inlet member (1) takes the form of an elongate or trilateral plate-like element (11) disposed on top of the sealing layer or the sealing layer (6) and the clamping ring (5) and provided with a recess (12) for flow communication with the outlet member (2). The present invention relates also to an inlet member (1) for a drain as above.Type: ApplicationFiled: February 10, 2009Publication date: December 15, 2011Inventor: Hakan Larsson
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Publication number: 20110297656Abstract: A welding device applies weld material between two work pieces such that the work pieces are connected mechanically with one another. The welding device includes a welding head and a central element. The welding head performs a welding action during transport thereof along an operating direction between the work pieces. Two primary sensor members are arranged on the central element upstream of the welding head relative to the operating direction. The sensor members register geometric properties of a spacing between the work pieces in which spacing the weld material is to be applied. Each sensor member is configured to maintain contact with a respective wall of the two work pieces adjoining the spacing while allowing variation of lateral distances between the central element and the adjoining wall. This is accomplished by the sensor members being pivotally attached to the central element via at least one pivoting axis oriented essentially perpendicular to the operating direction.Type: ApplicationFiled: October 9, 2009Publication date: December 8, 2011Applicant: ESAB ABInventors: Bo Melin, Per Östergren, Hakan Larsson, Bo Jansson, Lars E. Jansson
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Publication number: 20110213881Abstract: Digital living network alliance (DLNA) enabled portable electronic devices are provided that include a DLNA device circuit and a DLNA management console circuit. The DLNA device circuit is configured to attach the portable electronic device to an existing DLNA network having at least one existing DLNA management console so as to allow the portable electronic device to be a source for data on the existing DLNA network. The DLNA management console circuit is configured to enable the portable electronic device to operate as a portable management console for the existing and/or a new DLNA network. Related management consoles and methods of operating DLNA enabled portable electronic devices are also provided.Type: ApplicationFiled: May 9, 2011Publication date: September 1, 2011Inventors: Bengt Gunnar Stavenow, Bo Hakan Larsson, Jan Robert Tobias Ritzau, Henrik Sven Bengtsson, Anders Wilhelm Ostsjo, Sten Hakan Minor
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Publication number: 20110163151Abstract: A welding crane (1) for welding large structures is described. The welding crane (1) comprises a base part (2) which is arranged to be positioned on a ground (3), a mast (4) with a longitudinal axis (5). The mast (4) can be arranged in at least a first position in which the longitudinal axis (5) of the mast (4) extends substantially vertically from the base part (2). A boom (6) with a longitudinal axis (7) is arranged on the mast. The boom (6) can be arranged in at least a first position in which the longitudinal axis (7) of the boom (6) is substantially perpendicular to the longitudinal axis (5) of the mast (4). The boom (6) is arranged for receiving a welding head (13). The boom (6) is rotatable in relation to the mast (4) such that the boom (6) can be arranged in a second position in which the longitudinal axis (7) of the boom (6) is substantially parallel with the longitudinal axis (5) of the mast (4).Type: ApplicationFiled: June 23, 2009Publication date: July 7, 2011Applicant: ESAB ABInventor: Håkan Larsson
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Patent number: 7954133Abstract: Digital living network alliance (DLNA) enabled portable electronic devices are provided that include a DLNA device circuit and a DLNA management console circuit. The DLNA device circuit is configured to attach the portable electronic device to an existing DLNA network having at least one existing DLNA management console so as to allow the portable electronic device to be a source for data on the existing DLNA network. The DLNA management console circuit is configured to enable the portable electronic device to operate as a portable management console for the existing and/or a new DLNA network. Related management consoles and methods of operating DLNA enabled portable electronic devices are also provided.Type: GrantFiled: February 1, 2008Date of Patent: May 31, 2011Assignee: Sony Ericsson Mobile Communications ABInventors: Bengt Gunnar Stavenow, Bo Hakan Larsson, Jan Robert Tobias Ritzau, Henrik Sven Bengtsson, Anders Wilhelm Ostsjo, Sten Hakan Minor
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Publication number: 20110036547Abstract: A plate heat exchanger comprises a plurality of heat exchanger plates (1), a first end plate (2) and a second end plate (3). The plates (1-3) are permanently joined to each other by means of a braze material. Each heat exchanger plate has a heat transfer area and a plurality of porthole areas surrounding a respective porthole. The plate heat exchanger comprises a plurality of (50, 53) having a bottom surface (51) turned towards the heat exchanger plates. At least one of the flat elements comprises an annular protrusion (52) extending from the bottom surface (51) and tightly abutting one of the porthole areas of the outermost heat exchanger plate.Type: ApplicationFiled: April 4, 2008Publication date: February 17, 2011Applicant: ALFA LAVAL CORPORATE ABInventors: Rolf Christensen, Fredrik Andreasson, Rolf Bermhult, Håkan Larsson, Magnus Svensson
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Publication number: 20110036549Abstract: A plate heat exchanger comprises a plurality of heat exchanger plates (1). The plates are provided beside each other and permanently joined to each other to form a plate package having first plate interspaces and second plate interspaces. Each plate has a heat transfer area (20) and four porthole areas (21-24) defined by a porthole edge (25). Each of the porthole areas comprises an annular flat area (31) located at one of a primary and secondary level, and a set of inner portions (32) on the annular flat area at the other of the primary and secondary level. Each inner portion has an inner part adjoining the porthole edge and an outer segment adjoining the inner part and having an angular extension of at least 180°. The outer segment has a continuous contour and a radius R, which is allowed to vary within the range 0.8R?R?1.2R.Type: ApplicationFiled: April 4, 2008Publication date: February 17, 2011Inventors: Rolf Christensen, Fredrik Andreasson, Rolf Bermhult, Håkan Larsson, Magnus Svensson
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Publication number: 20110024097Abstract: A plate heat exchanger comprises a plurality of heat exchanger plates (1) formed of a metal sheet and permanently joined to each other by means of a braze material to form a plate package having first plate inter spaces (4) and second plate inter spaces (5). Each heat exchanger plate has a pattern forming a heat transfer area and a plurality of porthole areas. Each heat exchanger plate extends along a main extension plane (p). The areas extend, on one side of the heat exchanger plate, between a primary level (p?) at a distance from the main extension plane and a secondary level (p?) at a distance from and on an opposite side of the main extension plane. Each heat exchanger plate has a depth (d) defined by the distance between the primary level and the secondary level. The depth is equal to or less than 1.0 mm.Type: ApplicationFiled: April 4, 2008Publication date: February 3, 2011Applicant: Alfa Laval Corporate ABInventors: Rolf Christensen, Fredrik Andreasson, Rolf Bermhult, Hakan Larsson, Magnus Svensson
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Publication number: 20110024096Abstract: A plate heat exchanger comprises a plurality of heat exchanger plates joined to each other. Each plate (1) has a heat transfer area (20), a first porthole area (21), a second porthole area (22), a third porthole area (23) and a fourth porthole area (24). Each porthole area surrounds a porthole having a porthole edge (25). Each porthole area comprises an annular flat area (31), a set of inner portions (32) on the annular flat area along the porthole edge (25), and a set of outer portions (33) along the annular flat area (31) at a distance from the inner portions. The outer portions of the first porthole area have a first relative peripheral position with respect to the inner portions. The outer portions of the fourth porthole area have a second relative peripheral position with respect to the inner portions. The first relative peripheral position includes a peripheral displacement in relation to the second relative peripheral position.Type: ApplicationFiled: April 4, 2008Publication date: February 3, 2011Inventors: Rolf Christensen, Fredrik Andreasson, Rolf Bermhult, Hakan Larsson, Magnus Svensson
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TERMINALS, SERVERS, AND METHODS THAT FIND A MEDIA SERVER TO REPLACE A SENSED BROADCAST PROGRAM/MOVIE
Publication number: 20090271829Abstract: A wireless mobile terminal works with an identification server to automatically identify a broadcast program/movie and then identify and connect to a networked media server to receive the identified program/movie therefrom. The terminal generates data that characterizes content of a broadcast program/movie that is send by the terminal and is playing external thereto. The terminal transmits a message that includes the characterization data and a request for identification of a media server from which the broadcast program/movie can be received. The identification server identifies the broadcast program/movie, and identifies a user viewed location within the identified program/movie that corresponds to what was sensed by the terminal. The identification server identifies an Internet address of a media server from which the terminal can receive transmission of the identified program/movie.Type: ApplicationFiled: April 25, 2008Publication date: October 29, 2009Inventors: Bo Hakan Larsson, Henrik Sven Bengtsson, Bjorn Martin Gunnar Lindquist, Mans Folke Markus Andreasson, Per Emil Astrand, Olivier Thierry Nicolas Moliner -
Publication number: 20090178793Abstract: The invention relates to a heat transfer plate (1) intended to constitute, together with other heat transfer plates, a plate stack (2) with permanently connected plates for a heat exchanger (3), which heat transfer plate (1) has a first long side (4) and an opposite second long side (5), a first short side (6) and an opposite second short side (7), a heat transfer surface (8) exhibiting a pattern (9) of ridges (10) and valleys (11), first and second port regions (12 and 13), the first port region (12) being situated in a first corner portion (14) formed at the meeting between the first long side (4) and the first short side (6), the second port region (13) being situated in a second corner portion (15) formed at the meeting between the second long side (5) and the first short side (6), and the first port region (12) being connected to a number of ridges (10a-d) and valleys (11a-e), which ridges (10a-d) and valleys (11a-e) have in principle an extent from the first port region (12) diagonally towards the seconType: ApplicationFiled: December 21, 2006Publication date: July 16, 2009Applicant: Alfa Laval Corporate ABInventors: Hakan Larsson, Thord Gudmundsson, Kerstin Drakarve
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Publication number: 20090106414Abstract: Digital living network alliance (DLNA) enabled portable electronic devices are provided that include a DLNA device circuit and a DLNA management console circuit. The DLNA device circuit is configured to attach the portable electronic device to an existing DLNA network having at least one existing DLNA management console so as to allow the portable electronic device to be a source for data on the existing DLNA network. The DLNA management console circuit is configured to enable the portable electronic device to operate as a portable management console for the existing and/or a new DLNA network. Related management consoles and methods of operating DLNA enabled portable electronic devices are also provided.Type: ApplicationFiled: February 1, 2008Publication date: April 23, 2009Inventors: Bengt Gunnar Stavenow, Bo Hakan Larsson, Jan Robert Tobias Ritzau, Henrik Sven Bengtsson, Anders Wilhelm Ostsjo, Sten Hakan Minor
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Publication number: 20090064346Abstract: A method may include sending personal network connection information from a mobile device to a guest device; sending authentication credentials from the mobile device to the guest device; receiving the authentication credentials in the personal network from the guest device; authenticating the guest device based on the authentication credentials; and granting access to the guest device to content stored in the personal network for a guest session.Type: ApplicationFiled: November 9, 2007Publication date: March 5, 2009Applicant: SONY ERICSSON COMMUNICATIONS ABInventors: Bo Hakan LARSSON, Bengt Gunnar STAVENOW, Jan Robert Tobias RITZAU, Henrik Sven BENGTSSON, Anders Wilhelm Ostsjo, Sten Hakan MINOR