Patents by Inventor Erik Karlsson
Erik Karlsson 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: 20230255522Abstract: An optical detection apparatus is arranged to detect particles in a fluid flowing through a tubing portion of transparent or translucent material. The apparatus comprises a holder for the tubing portion; a light emitting device configured to irradiate a target volume inside the tubing portion when arranged in the holder; and at least one light receiving device configured to receive light from the target volume when irradiated by the light emitting device and generate one or more time-dependent output signals indicative of the received light. A computation device is configured to determine a parameter indicative of temporal variability in the one or more time-dependent output signals and estimate the density based on the parameter, which has been found to be robust to structural differences between tubings and allows the apparatus to be deployed without calibration.Type: ApplicationFiled: June 21, 2021Publication date: August 17, 2023Inventors: Mattias HOLMER, Jonas ALSON, Erik KARLSSON
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Patent number: 10501699Abstract: This invention relates to low sulfur marine bunker fuel compositions and methods of making the same. The invention also relates to an uncracked, hydrotreated vacuum resid for use in making the low sulfur marine bunker fuel composition. Contrary to conventional marine/bunker fuel compositions, the low sulfur marine/bunker fuel composition uses mostly uncracked components, including a (cat feed) hydrotreated vacuum resid. The low sulfur marine/bunker fuel composition can also have reduced contents of residual components.Type: GrantFiled: February 5, 2018Date of Patent: December 10, 2019Assignee: ExxonMobil Research and Engineering CompanyInventors: Christopher E. Robinson, Sara Dawe, Erik Karlsson, Hédi Grati
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Patent number: 9993858Abstract: A roll for hot-rolling includes a body, wherein at least a part of an envelope surface of the body is made of a high speed steel that with reference to its chemical composition consists of the following elements, in weight %: 1-3 Carbon (C), 3-6 Chromium (Cr), 4.5-7 Molybdenum (Mo), 6-15 Tungsten (W), 3-14 Vanadium (V), 0-10 Cobalt (Co), 0-3 Niobium (Nb), 0-0.5 Nitrogen (N), 0.4-1 Yttrium (Y), eventualy distributed in the powder, and remainder iron (Fe) and unavoidable impurities, wherein contents of molybdenum (Mo) and tungsten (W) satisfy the formula Mo+0.5W=2.0-10.0 weight %.Type: GrantFiled: September 19, 2012Date of Patent: June 12, 2018Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Menderes Kayhan, Jan-Erik Karlsson, Stephen Hewitt
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Publication number: 20180155647Abstract: This invention relates to low sulfur marine bunker fuel compositions and methods of making the same. The invention also relates to an uncracked, hydrotreated vacuum resid for use in making the low sulfur marine bunker fuel composition. Contrary to conventional marine/bunker fuel compositions, the low sulfur marine/bunker fuel composition uses mostly uncracked components, including a (cat feed) hydrotreated vacuum resid. The low sulfur marine/bunker fuel composition can also have reduced contents of residual components.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Inventors: Christopher E. ROBINSON, Sara DAWE, Erik KARLSSON, Hédi GRATI
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Patent number: 9920270Abstract: This invention relates to low sulfur marine bunker fuel compositions and methods of making the same. The invention also relates to an uncracked, hydrotreated vacuum resid for use in making the low sulfur marine bunker fuel composition. Contrary to conventional marine/bunker fuel compositions, the low sulfur marine/bunker fuel composition uses mostly uncracked components, including a (cat feed) hydrotreated vacuum resid. The low sulfur marine/bunker fuel composition can also have reduced contents of residual components.Type: GrantFiled: November 17, 2015Date of Patent: March 20, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Christopher E. Robinson, Sara Dawe, Erik Karlsson, Hédi Grati
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Publication number: 20160160139Abstract: This invention relates to low sulfur marine bunker fuel compositions and methods of making the same. The invention also relates to an uncracked, hydrotreated vacuum resid for use in making the low sulfur marine bunker fuel composition. Contrary to conventional marine/bunker fuel compositions, the low sulfur marine/bunker fuel composition uses mostly uncracked components, including a (cat feed) hydrotreated vacuum resid. The low sulfur marine/bunker fuel composition can also have reduced contents of residual components.Type: ApplicationFiled: November 17, 2015Publication date: June 9, 2016Applicant: ExxonMobil Research and Engineering CompanyInventors: Christopher E. Robinson, Sara DAWE, Erik KARLSSON, Hédi GRATI
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Publication number: 20150018185Abstract: A roll for hot-rolling includes a body, wherein at least a part of an envelope surface of the body is made of a high speed steel that with reference to its chemical composition consists of the following elements, in weight %: 1-3 Carbon (C), 3-6 Chromium (Cr), 0-7 Molybdenum (Mo), 0-15 Tungsten (W), 3-14 Vanadium (V), 0-10 Cobalt (Co), 0-3 Niobium (Nb), 0-0.5 Nitrogen (N), 0.2-1 Yttrium (Y), and remainder iron (Fe) and unavoidable impurities.Type: ApplicationFiled: September 19, 2012Publication date: January 15, 2015Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Menderes Kayhan, Jan-Erik Karlsson, Stephen Hewitt
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Publication number: 20120151990Abstract: A holder for a liquid separator is disclosed herein. The liquid separator includes a separator body for dividing a sample flow into two separate flows, one of said flows substantially free of liquid being for the gas measurement and another of said flows including at least one of liquid and gas bypassing the measurement, and which liquid separator also includes a detachable liquid container for receiving the another flow. The holder includes a space receiving the liquid separator and also includes a frame surrounding at least partly the space and which frame including a first contact point being in contact with the separator body. The frame also includes a second contact point being in contact with the liquid container and which first contact point together with the second contact point are adapted to hold the liquid separator.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Juha Viitala, Eero Tapio Hyytiäine, Jukka Anntti Petteri Hakanen, Jani Mikael Kauppi, Anu Kristiina Varis, Kai Erik Karlsson
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Patent number: 8133162Abstract: A ring, preferably in the form of a lock nut, made for combi rolls, which ring includes at least one spring device in which a mechanical compression spring is included that acts between, on one hand, a front press body that is movable to and fro in order to constantly forward a spring force generated by the compression spring and, on the other hand, a support body, which may assume a fixed position, but which is adjustably movable by way of a screw in order to alter the tension in the compression spring.Type: GrantFiled: June 6, 2006Date of Patent: March 13, 2012Assignee: Sandvik Intellectual Property ABInventors: Jorge Gleizer, Menderes Kayhan, Jan-Erik Karlsson
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Patent number: 7509805Abstract: An internal combustion engine has a plurality of cylinders, and each cylinder has at least one first and one second exhaust port with associated respective first and second exhaust valves. At least one first and one second exhaust manifold are flow-connected to the respective first and second exhaust ports. A turbo unit for supercharging the charge air delivered to the cylinders comprises at least one first and one second exhaust gas turbine respectively flow connected to the first and the second exhaust manifolds. An exhaust gas chamber flow-connects the first and the second exhaust manifolds upstream of the exhaust gas turbines. The first and second exhaust valves can be deactivated/activated during operation. A throttle valve in the exhaust gas chamber may assume a closed position in order to separate the first and the second exhaust manifolds. A method of operating includes opening and closing different valves at different engine speeds.Type: GrantFiled: October 6, 2005Date of Patent: March 31, 2009Assignee: SAAB Automobile ABInventor: Erik Karlsson
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Patent number: 7340896Abstract: A method for regulating the turbine power of a turbo in an internal combustion engine. The internal combustion engine comprises an exhaust-driven turbine with guide elements for guiding the exhaust gas flow to the turbine wheel, the orientation of the guide elements around respective axes thereof parallel to the axis of the turbine are adjustable within a range defined by a first end position (A) and a second end position (C) for the purpose of regulating the quantity of exhaust gases through the turbine.Type: GrantFiled: December 13, 2005Date of Patent: March 11, 2008Assignee: SAAB Automobile ABInventor: Erik Karlsson
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Publication number: 20060287176Abstract: A ring, preferably in the form of a lock nut, made for combi rolls, which ring includes at least one spring device in which a mechanical compression spring is included that acts between, on one hand, a front press body that is movable to and fro in order to constantly forward a spring force generated by the compression spring and, on the other hand, a support body, which may assume a fixed position, but which is adjustably movable by way of a screw in order to alter the tension in the compression spring.Type: ApplicationFiled: June 6, 2006Publication date: December 21, 2006Inventors: Jorge Gleizer, Menderes Kayhan, Jan-Erik Karlsson
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Publication number: 20060287179Abstract: A combi roll includes a shaft having two spaced-apart stop rings a plurality of roll rings placed between the stop rings, which roll rings individually are composed of an outer ring of a hard metal, and a concentric inner ring of a more ductile metal, which is permanently bonded to the outer ring metallurgically, and has a flange that projects a distance axially from an end of the outer ring. The individual roll ring is rigidly connected to the shaft by way of one or more locking pins, which are inserted in through holes in the projecting flange of the inner ring and engage holes in the shaft.Type: ApplicationFiled: June 6, 2006Publication date: December 21, 2006Inventors: Jorge Gleizer, Milinko Prusic, Jan-Erik Karlsson
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Publication number: 20060137344Abstract: A method for regulating the turbine power of a turbo in an internal combustion engine. The internal combustion engine comprises an exhaust-driven turbine with guide elements for guiding the exhaust gas flow to the turbine wheel, the orientation of the guide elements around respective axes thereof parallel to the axis of the turbine are adjustable within a range defined by a first end position (A) and a second end position (C) for the purpose of regulating the quantity of exhaust gases through the turbine.Type: ApplicationFiled: December 13, 2005Publication date: June 29, 2006Inventor: Erik Karlsson
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Publication number: 20060070382Abstract: An internal combustion engine has a plurality of cylinders, and each cylinder has at least one first and one second exhaust port with associated respective first and second exhaust valves. At least one first and one second exhaust manifold are flow-connected to the respective first and second exhaust ports. A turbo unit for supercharging the charge air delivered to the cylinders comprises at least one first and one second exhaust gas turbine respectively flow connected to the first and the second exhaust manifolds. An exhaust gas chamber flow-connects the first and the second exhaust manifolds upstream of the exhaust gas turbines. The first and second exhaust valves can be deactivated/activated during operation. A throttle valve in the exhaust gas chamber may assume a closed position in order to separate the first and the second exhaust manifolds. A method of operating includes opening and closing different valves at different engine speeds.Type: ApplicationFiled: October 6, 2005Publication date: April 6, 2006Inventor: Erik Karlsson
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Patent number: 6490793Abstract: A method of manufacturing an as-cast composite roll by metallurgically bonding one or more rings of cemented carbide to a cast iron casing. The composite roll may be used for hot or cold rolling. The cast iron has the following composition in addition to Fe, in weight %, 1.9-2.8% Si, 0.02-0.10% Mg, 0.5-4% Ni, 0.1-1% Mn, balance Fe and a Ceqv=2.5-6.Type: GrantFiled: April 24, 2000Date of Patent: December 10, 2002Assignee: Sandvik ABInventors: Carl-Johan Maderud, Jan-Erik Karlsson
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Patent number: 6104348Abstract: An antenna device for receiving and/or transmitting dual polarized electromagnetic waves, comprising at least one antenna element (7). There are disposed parasitic elements (8, 9) of an electrically conductive material in a region, which surrounds the antenna element and includes the space between and including two parallel planes (2, 1) being defined by a ground plane layer (2) and the antenna element (7), respectively. Each parasitic element (8, 9) comprises at least one elongated, longitudinal portion, extending along an associated lateral side of the antenna element.Type: GrantFiled: July 23, 1998Date of Patent: August 15, 2000Assignee: Allgon ABInventors: Jan-Erik Karlsson, Stefan Jonsson
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Patent number: 6095958Abstract: A composite roll including one or more rings of cemented carbide metallurgically bonded to a cast iron casing. The composite roll may be used for hot or cold rolling. The cast iron has the following composition in addition to Fe, in weight %, 1.9-2.8% Si, 0.02-0.10% Mg, 0.5-4% Ni, 0.1-1% Mn, balance Fe and a C.sub.eqv =2.5-6.Type: GrantFiled: January 14, 1999Date of Patent: August 1, 2000Assignee: Sandvik ABInventors: Carl-Johan Maderud, Jan-Erik Karlsson
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Patent number: 6022448Abstract: The present invention relates to coated paperboard for formed articles, which paperboard consists of a fibermatrix in one, two or more layers and a coating and has adequate surface for printing and adequate surface gloss for each specific type of formed articles. The paperboard has been calendered after coating with a heatable calender having a soft extended nip, and has reduced density and reduced grammage at a given value for bending force compared to corresponding coated paperboard which has been calendered before or during and after coating with a heatable or non-heatable calender having a hard or soft nip. Additionally, a production line for the production of such coated paperboard, a process for the production of such coated paperboard, and a method of reducing the susceptibility to crack formation at folding of such a coated paperboard, are described.Type: GrantFiled: October 10, 1997Date of Patent: February 8, 2000Assignee: Korsnab ABInventors: Goran Eriksson, Klas-Erik Karlsson, Nils .ANG.ke Larsson, Sven H.ang.kansson
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Patent number: D882753Type: GrantFiled: March 22, 2018Date of Patent: April 28, 2020Assignee: Calmark Sweden ABInventors: Ana Catarina de Araujo Silva, Johan Svanh, Erik Karlsson