Patents by Inventor Lars-Goran Johansson
Lars-Goran Johansson 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: 8085829Abstract: A furnace insulation including fiber modules in the form of at least two cylinder segments (2, 3; 7, 8) that are placed against one another so as to form a cylinder whose internal volume constitutes the furnace space and that are adapted to allow an electrical resistance element (5) to lie against and be fastened in the inner surface (4) of the cylinder. The furnace insulation is characterized in that the inner part of the cylinder includes one or more radially extending or generally radially extending openings (12; 14).Type: GrantFiled: August 31, 2005Date of Patent: December 27, 2011Assignee: Sandvik Intellectual Property ABInventors: Lars Goran Johansson, Lars-Henrik Eklund
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Publication number: 20080196641Abstract: Furnace insulation comprising fibre modules in the form of at least two cylinder segments (2, 3; 7, 8) that are placed against one another so as to form a cylinder whose internal volume constitutes the furnace space and that are adapted to allow an electrical resistance element (5) to lie against and be fastened in the inner surface (4) of the cylinder. The present invention is characterized in that the inner part of the cylinder includes one or more radially extending or generally radially extending openings (12; 14).Type: ApplicationFiled: August 31, 2005Publication date: August 21, 2008Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Lars Göran Johansson, Lars-Henrik Eklund
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Patent number: 7378621Abstract: The present invention relates to an electrical resistance element of the molybdenum silicide type that includes two terminals (1, 2) for the supply of electric current and at least one leg (3) which extends between the terminals and which includes a glow zone. The invention is characterized in that the glow zone has different diameters along different sections (6-11, 14-17) of the leg (3; 4, 5).Type: GrantFiled: February 20, 2003Date of Patent: May 27, 2008Assignee: Sandvik Intellectual Property ABInventor: Lars Göran Johansson
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Patent number: 7012947Abstract: The invention relates to an arrangement for mounting electric heating elements in a furnace in which objects are intended to be heated, wherein the furnace wall includes a furnace insulation (4) comprised of high grade brick, and wherein the heating zones (6) of respective electric heating elements (2) are placed vertically and parallel with the inner surface of the furnace wall in operation.Type: GrantFiled: December 18, 2002Date of Patent: March 14, 2006Assignee: Sandvik ABInventor: Lars-Göran Johansson
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Publication number: 20050184057Abstract: The present invention relates to an electrical resistance element of the molybdenum silicide type that includes two terminals (1, 2) for the supply of electric current and at least one leg (3) which extends between the terminals and which includes a glow zone. The invention is characterised in that the glow zone has different diameters along different sections (6-11, 14-17) of the leg (3; 4, 5).Type: ApplicationFiled: February 20, 2003Publication date: August 25, 2005Inventor: Lars Goran Johansson
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Publication number: 20050129085Abstract: The invention relates to an arrangement for mounting electric heating elements in a furnace in which objects are intended to be heated, wherein the furnace wall includes a furnace insulation (4) comprised of high grade brick, and wherein the heating zones (6) of respective electric heating the inner surface of the furnace wall in operation.Type: ApplicationFiled: December 18, 2002Publication date: June 16, 2005Applicant: Sandvik ABInventor: Lars-Goran Johansson
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Patent number: 6879622Abstract: An arrangement at installation of electrical resistance elements having high operating temperatures, in which arrangement comprises at least one element having a glow zone (3) and support and distance plates (1, 2) to carry the glow zone. The element is corrugated in its lengthwise direction, that the upper corrugations are supported at the tipper edges of vertical supporting plates (1) and that the lower corrugations are supported at distance plates (2) that are arranged between each two adjacent supporting plates (1). The supporting plates (1) and the distance plates (2) are held together by a resilient mounted pull bar (5). The element or the elements are mainly made from molybdenum disilicide.Type: GrantFiled: March 26, 2002Date of Patent: April 12, 2005Assignee: Kanthal ABInventor: Lars-Goran Johansson
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Patent number: 6683281Abstract: The present invention is for a method for heating of blanks and other heating of metallic materials in a furnace before working where heat is transferred to a blank in the furnace by radiation. According to the method of the invention an important part of the radiation hits the walls of the furnace and are reflected there before it is transferred to the blank. Preferably the furnace is designed so that head radiation is reflected also at the bottom of the furnace. At least 50% of the radiation which reaches the blank ought to be reflected radiation. The invention is also for a furnace for heating of blanks and other comprising at least one furnace bottom part (1) and at least one furnace top part (4) having side walls (5, 6, 7, 8) where at least parts of the side walls of the top parts are inclined so that opposite walls are inclined towards each other.Type: GrantFiled: November 8, 2002Date of Patent: January 27, 2004Assignee: Kanthal ABInventors: Mats Sundberg, Lars-Goran Johansson, Helena Johansson, Jan Andersson
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Publication number: 20030127446Abstract: The present invention is for a method for heating of blanks and other heating of metallic materials in a furnace before working where heat is transferred to a blank in the furnace by radiation. According to the method of the invention an important part of the radiation hits the walls of the furnace and are reflected there before it is transferred to the blank. Preferably the furnace is designed so that heat radiation is reflected also at the bottom of the furnace. At least 50% of the radiation which reaches the blank ought to be reflected radiation. The invention is also for a furnace for beating of blanks and other comprising at least one furnace bottom part (1) and at least one furnace top part (4) having side walls (5, 6, 7, 8) where at least parts of the side walls of the top parts are inclined so that opposite walls are inclined towards each other.Type: ApplicationFiled: November 8, 2002Publication date: July 10, 2003Inventors: Mats Sundberg, Lars-Goran Johansson, Helena Johansson, Jan Andersson
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Patent number: 6308008Abstract: An infrared radiation lamp that includes an electrically heated filament and a reflector. The filament is a high temperature element that is wound to a helical configuration. The helical filament is free-standing at operating temperatures, and it is positioned in an open reflector made from a ceramic material.Type: GrantFiled: December 30, 1999Date of Patent: October 23, 2001Assignee: Kanthal ABInventors: Lars-Göran Johansson, Jan Andersson
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Patent number: 6222452Abstract: An electronic identification tag is made up of at least one cover strip and a carrier strip having an antenna and transponder mounted thereon, and an adhesive to secure the strips together such that the antenna is interposed between the strips, the transponder being pre-programmed to generate a signal having a unique code correlated with indicia on the tag to identify a passenger or luggage. The tag further lends itself well to a novel method of tracking luggage and passengers in a transportation facility.Type: GrantFiled: December 16, 1997Date of Patent: April 24, 2001Assignee: Confidence International ABInventors: Lucas Ahlstrom, Lars-Goran Johansson
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Patent number: 6160957Abstract: An infrared radiating panel includes a wall made from ceramic fiber material. An electric heating element is adapted for connection to an electric current source for heating the element to a high temperature at which it will emit infrared radiation is fastened to the wall with the aid of staples. The heating element is mounted in spaced relationship with the surface of the wall and is retained between pairs of ceramic rods that engage opposite faces of the heating element.Type: GrantFiled: July 29, 1999Date of Patent: December 12, 2000Assignee: Kanthal ABInventor: Lars-Goran Johansson
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Patent number: 4338074Abstract: An assembly and method for heating a fluidized bed combustion chamber to ignition temperature, wherein a heated gas flows through heat exchange tubes extending into the fluidized bed to provide sufficient heat for raising the temperature of the bed material and the combustion air to allow for ignition of the combustion fuel. A conduit system is provided for selectively recycling combustion air through the combustion chamber during the ignition process.Type: GrantFiled: February 4, 1980Date of Patent: July 6, 1982Assignee: Stal-Laval Turbin ABInventor: Lars-Goran Johansson
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Patent number: D449375Type: GrantFiled: August 18, 2000Date of Patent: October 16, 2001Assignee: Kanthal ABInventors: Jan Andersson, Helena Johansson, Lars-Göran Johansson, Mats Sundberg
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Patent number: D452560Type: GrantFiled: August 18, 2000Date of Patent: December 25, 2001Assignee: Kanthal ABInventors: Jan Andersson, Helena Johansson, Lars-Göran Johansson, Mats Sundberg
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Patent number: D452561Type: GrantFiled: August 18, 2000Date of Patent: December 25, 2001Assignee: Kanthal ABInventors: Jan Andersson, Helena Johansson, Lars-Göran Johansson, Mats Sundberg