Patents by Inventor Owe Mars
Owe Mars 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).
-
Patent number: 10513758Abstract: A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: GrantFiled: April 2, 2018Date of Patent: December 24, 2019Assignee: HÖGANÄS AB (PUBL)Inventors: Owe Mars, Senad Dizdar, Philippe Szabo, Thierry Calmes
-
Publication number: 20180223396Abstract: A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Applicant: HOGANAS AB (PUBL)Inventors: Owe Mars, Senad Dizdar, Philippe Szabo, Thierry Calmes
-
Patent number: 9957590Abstract: A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: GrantFiled: December 12, 2013Date of Patent: May 1, 2018Assignee: HÖGANÄS AB (PUBL)Inventors: Owe Mars, Senad Dizdar, Philippe Szabo, Thierry Calmes
-
Publication number: 20180021894Abstract: The invention discloses a nickel based brazing filler metal in form of an alloy containing or consisting of between 20 wt % and 35 wt % chromium, between 7 wt % and 15 wt % iron and between 2.5 wt % and 9 wt % silicon, between 0 wt % and 15 wt % molybdenum, unavoidable impurities and the balance being nickel. The solidus temperature of the brazing filler shall be between 1140° C. and 1240° C. The brazing filler metal is suitable for production of catalytic converters and heat exchangers. The invention also discloses a brazing method.Type: ApplicationFiled: February 11, 2016Publication date: January 25, 2018Applicant: HOGANAS AB (PUBL)Inventors: Ulrika PERSSON, Owe MÅRS
-
Patent number: 9193011Abstract: An iron-chromium based brazing filler metal is provided which exhibits an excellent wetting behavior on a stainless steel base material. The brazing filler metal produces a brazed joint which exhibits high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder according to the invention comprises: between 11 and 35 wt % chromium, between 0 and 30 wt % nickel, between 2 and 20 wt % copper, between 2 and 6 wt % silicon, between 4 and 8 wt % phosporous, between 0-10 wt % manganese, and at least 20 wt % iron.Type: GrantFiled: March 16, 2009Date of Patent: November 24, 2015Assignee: HOGANAS AB (PUBL)Inventors: Owe Mårs, Ulrika Persson
-
Publication number: 20150307968Abstract: A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: ApplicationFiled: December 12, 2013Publication date: October 29, 2015Applicant: HOGANAS AB (publ)Inventors: Owe MARS, Senad DIZDAR, Philippe SZABO, Thierry CALMES
-
Patent number: 8337761Abstract: A particulate filtration device includes a filter with a feed inlet side for a feed gas and an filtrate outlet for a filtrate, feed gas channels and filtrate channels, and one or more diaphragms between the feed inlet side and the filtrate outlet. Opposite to the feed inlet side a particulate outlet is arranged with a collector compartment attached to the particulate outlet for collecting particulates retained in the feed gas channels.Type: GrantFiled: December 21, 2007Date of Patent: December 25, 2012Assignees: Volvo Technology Corp., Höganäs ABInventors: Lennart Andersson, Jonas Edvardsson, Edward Jobson, Heije Westberg, Per-Olof Larsson, Owe Mars, Jörgen Knuth-Nielsen
-
Publication number: 20110192127Abstract: A filter comprising a porous sintered stainless steel is provided. The filter includes 10-30% chromium, 5-25% nickel, 0.5-3% manganese; 1-4% silicon, and 0-3% molybdenum with the remainder being iron and inevitable impurities. The sintered steel has a density less than 80% of full density. The use of a stainless steel powder for the preparation of a filter having improved permeability at high temperatures also is described.Type: ApplicationFiled: April 20, 2011Publication date: August 11, 2011Applicant: HÖGANÄS ABInventors: Owe Mårs, Ingrid Hauer
-
Publication number: 20110027136Abstract: A particulate filtration device includes a filter with a feed inlet side for a feed gas and an filtrate outlet for a filtrate, feed gas channels and filtrate channels, and one or more diaphragms between the feed inlet side and the filtrate outlet. Opposite to the feed inlet side a particulate outlet is arranged with a collector compartment attached to the particulate outlet for collecting particulates retained in the feed gas channels.Type: ApplicationFiled: December 21, 2007Publication date: February 3, 2011Inventors: Lennart Andersson, Jonas Edvardsson, Edward Jobson, Heije Westberg, Per-Olof Larsson, Owe Mars, Jörgen Knuth-Nielsen
-
Publication number: 20110014491Abstract: An iron-chromium based brazing filler metal is provided which exhibits an excellent wetting behavior on a stainless steel base material. The brazing filler metal produces a brazed joint which exhibits high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder according to the invention comprises: between 11 and 35 wt % chromium, between 0 and 30 wt % nickel, between 2 and 20 wt % copper, between 2 and 6 wt % silicon, between 4 and 8 wt % phosporous, between 0-10 wt % manganese, and at least 20 wt % iron.Type: ApplicationFiled: March 16, 2009Publication date: January 20, 2011Applicant: HOGANAS AB (PUBL)Inventors: Owe Mars, Ulrika Persson
-
Publication number: 20090038280Abstract: A filter comprising a porous sintered stainless steel is provided. The filter includes 10-30% chromium, 5-25% nickel, 0.5-3% manganese; 1-4% silicon, and 0-3% molybdenum with the remainder being iron and inevitable impurities. The sintered steel has a density less than 80% of full density. The use of a stainless steel powder for the preparation of a filter having improved permeability at high temperatures also is described.Type: ApplicationFiled: May 24, 2006Publication date: February 12, 2009Applicant: Hoganas ABInventors: Owe Mars, Ingrid Hauer
-
Patent number: 7473295Abstract: The invention concerns a stainless steel powder comprising at least 10% chromium by weight. The powder further comprises vanadium in an amount of at least 4 times the amount of carbon and nitrogen. Preferably the steel powder comprises 10-30% chromium, 0.1-1% vanadium, 0.5-1.5% silicon, at least 0.1% carbon and at least 0.07% nitrogen. The invention also concerns a powder metallurgical composition containing said steel powder, a process for preparing and a compacted and sintered part made of said composition.Type: GrantFiled: July 1, 2005Date of Patent: January 6, 2009Assignee: Höganäs ABInventors: Owe Mårs, Ricardo Canto Leyton, Ola Bergman
-
Patent number: 7300488Abstract: The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite. The invention also concerns a method for producing PM components by pressing of articles to shape from the powder metal composition according to the invention and sintering them.Type: GrantFiled: March 17, 2004Date of Patent: November 27, 2007Assignee: Höganäs abInventors: Christophe Szabo, Owe Mårs
-
Publication number: 20060198751Abstract: The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite. The invention also concerns a method for producing PM components by pressing of articles to shape from the powder metal composition according to the invention and sintering them.Type: ApplicationFiled: May 5, 2006Publication date: September 7, 2006Applicant: HOGANAS AB,Inventors: Christophe Szabo, Owe Mars
-
Publication number: 20060002813Abstract: The invention concerns a stainless steel powder comprising at least 10% chromium by weight. The powder further comprises vanadium in an amount of at least 4 times the amount of carbon and nitrogen. Preferably the steel powder comprises 10-30% chromium, 0.1-1% vanadium, 0.5-1.5% silicon, at least 0.1% carbon and at least 0.07% nitrogen. The invention also concerns a powder metallurgical composition containing said steel powder, a process for preparing and a compacted and sintered part made of said composition.Type: ApplicationFiled: July 1, 2005Publication date: January 5, 2006Applicant: HOGANAS ABInventors: Owe Mars, Ricardo Leyton, Ola Bergman
-
Publication number: 20040234407Abstract: The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite.Type: ApplicationFiled: March 17, 2004Publication date: November 25, 2004Applicant: HOGANAS ABInventors: Christophe Szabo, Owe Mars
-
Patent number: 6620218Abstract: The invention concerns a method of improving the dynamic properties of compacted and sintered products having a density between 6.8 and 7.6 g/cm3, preferably between 7.0 and 7.4 g/cm3. According to this method an iron based powder, graphite and a solid particular lubricant having a vaporizing temperature less the sintering temperature, preferably less than about 800° C. is compacted and sintered and the maximum particle size of the lubricant is selected so that the largest pores of a compacted and sintered product prepared from the composition are equal to or less than the largest pores obtained in a compacted and sintered product prepared from the composition without lubricant. The invention also concerns composition of an iron based powder, graphite and a solid particular lubricant having a vaporizing temperature less the sintering temperature, preferably less than about 800° C. and a maximum particle size less than about 0.Type: GrantFiled: January 24, 2001Date of Patent: September 16, 2003Assignee: Höganäs ABInventors: Owe Mårs, Björn Lindqvist, Åsa Ahlin
-
Publication number: 20020146341Abstract: The invention concerns a method of improving the dynamic properties of compacted and sintered products having a density between 6.8 and 7.6 g/cm3, preferably between 7.0 and 7.4 g/cm3. According to this method an iron based powder, graphite and a solid particular lubricant having a vaporizing temperature less the sintering temperature, preferably less than about 800° C. is compacted and sintered and the maximum particle size of the lubricant is selected so that the largest pores of a compacted and sintered product prepared from the composition are equal to or less than the largest pores obtained in a compacted and sintered product prepared from the composition without lubricant. The invention also concerns composition of an iron based powder, graphite and a solid particular lubricant having a vaporizing temperature less the sintering temperature, preferably less than about 800° C. and a maximum particle size less than about 0.Type: ApplicationFiled: January 24, 2001Publication date: October 10, 2002Inventors: Owe Mars, Bjorn Lindqvist, Asa Ahlin
-
Patent number: 6171546Abstract: The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.Type: GrantFiled: December 10, 1998Date of Patent: January 9, 2001Assignee: Högan{umlaut over (a)}s ABInventors: Owe Mårs, Nils Carlbaum