Patents by Inventor Anna Hultin Stigenberg
Anna Hultin Stigenberg 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: 20070082214Abstract: A coated stainless steel strip product with a dense and evenly distributed aluminum layer on one side or both sides of said strip is provided. Said layer consists of essentially pure aluminum, the thickness of said layer is maximally 15 ?m, the tolerance of said layer is maximally +/?30% of the layer thickness, the Cr content of the steel strip substrate is at least 10%, and that the layer has such a good adhesion so that the coated steel strip can be bent 180° over a radius maximally equal to the thickness of said strip without showing any tendency to flaking or the like. The Al-coated strip product is suitable for applications in environments with high humidity or in wet conditions, such as outdoor life applications, sports and sea-life, household and personal care.Type: ApplicationFiled: August 31, 2004Publication date: April 12, 2007Applicant: SANDVIK ABInventor: Anna Hultin Stigenberg
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Publication number: 20070072008Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip substrate is provided. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is suitable for shaving equipment, medical instruments, utility and industrial knives as well as saw applications.Type: ApplicationFiled: October 30, 2006Publication date: March 29, 2007Inventors: Anna Hultin Stigenberg, Mikael Schuisky
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Publication number: 20070042204Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is useful for the manufacturing of doctor and coater blades for paper and printing industry.Type: ApplicationFiled: October 30, 2006Publication date: February 22, 2007Inventors: Anna Hultin Stigenberg, Mikael Schuisky
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Publication number: 20070042205Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is useful for the manufacturing of doctor and coater blades for paper and printing industry.Type: ApplicationFiled: October 30, 2006Publication date: February 22, 2007Inventors: Anna Hultin Stigenberg, Mikael Schuisky
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Patent number: 7147931Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip substrate is provided. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is suitable for shaving equipment, medical instruments, utility and industrial knives as well as saw applications.Type: GrantFiled: August 11, 2004Date of Patent: December 12, 2006Assignee: Sandvik Intellectual Property ABInventors: Anna Hultin Stigenberg, Mikael Schuisky
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Patent number: 7147932Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is useful for the manufacturing of doctor and coater blades for paper and printing industry.Type: GrantFiled: August 11, 2004Date of Patent: December 12, 2006Assignee: Sandvik Intellectual Property ABInventors: Anna Hultin Stigenberg, Mikael Schuisky
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Publication number: 20050064215Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is useful for the manufacturing of doctor and coater blades for paper and printing industry.Type: ApplicationFiled: August 11, 2004Publication date: March 24, 2005Applicant: Sandvik ABInventors: Anna Hultin Stigenberg, Mikael Schuisky
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Publication number: 20050064214Abstract: A coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip substrate is provided. The thickness of said coating is in total maximally 25 ?m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of Al2O3. The coated metal strip is suitable for shaving equipment, medical instruments, utility and industrial knives as well as saw applications.Type: ApplicationFiled: August 11, 2004Publication date: March 24, 2005Applicant: Sandvik ABInventors: Anna Hultin Stigenberg, Mikael Schuisky
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Patent number: 6475307Abstract: A composition and method for the manufacture of products of a precipitation hardenable martensitic stainless steel, the composition of which comprises at least 0.5% by weight of Cr and at least 0.5% by weight of Mo wherein the sum of Cr, Ni and Fe exceeds 50%. The method steps include smelting the material into a casting, hot extrusion followed by a number of cold deforming steps so as to obtain at least 50% martensite and finally an ageing treatment at 425-525° C. to obtain precipitation of quasicrystalline particles. Such material can be used in vehicle components where demands for corrosion resistance, high strength and good toughness are to be satisfied.Type: GrantFiled: November 16, 2000Date of Patent: November 5, 2002Assignee: Sandvik ABInventors: Anna-Lena Nyström, Anna Hultin Stigenberg
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Patent number: 5759308Abstract: A precipitation hardened metallic alloy is provided in which the strengthening is based on the precipitation of particles. The strengthening particles have a quasicrystalline structure, said structure being essentially maintained at aging times up to 1000 h and tempering treatments up to 650.degree. C., the strengthening involving an increase in tensile strength of at least 200 MPa.Type: GrantFiled: January 3, 1997Date of Patent: June 2, 1998Assignee: Sandvik ABInventors: Anna Hultin-Stigenberg, Jan-Olof Nilsson, Ping Liu
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Patent number: 5632826Abstract: A precipitation hardened metallic alloy is provided in which the strengthening is based on the precipitation of particles. The strengthening particles have a quasicrystalline structure, said structure being essentially maintained at aging times up to 1000 h and tempering treatments up to 650.degree. C., the strengthening involving an increase in tensile strength of at least 200 MPa.Type: GrantFiled: October 7, 1994Date of Patent: May 27, 1997Assignee: Sandvik ABInventors: Anna Hultin-Stigenberg, Jan-Olof Nilsson, Ping Liu
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Patent number: RE36382Abstract: Precipitation hardenable martensitic stainless steel of high strength combined with high ductility. The Iron-based steel comprises of about 10 to 14% chromium, about 7 to 11% nickel, about 0.5 to 6% molybdenum, up to 9% cobalt, about 0.5% to 4% copper, about 0.4 to 1.4% titanium, about 0.05 to 0.6% aluminium, carbon and nitrogen not exceeding 0.05% with iron as the remainder and all other elements of the periodic table not exceeding 0.5%.Type: GrantFiled: September 4, 1997Date of Patent: November 9, 1999Assignee: Sandvik ABInventor: Anna Hultin-Stigenberg