Patents by Inventor Anita M. Weiner
Anita M. Weiner 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: 8092922Abstract: A layered coating is disclosed herein. The layered coating includes a chromium layer, an intermediate layer of chromium and nitrogen established on the chromium layer, and an outer layer of chromium and nitrogen established on the intermediate layer. The intermediate layer has a gradually changing composition, wherein the chromium concentration decreases from an area of the intermediate layer adjacent the chromium layer towards a surface of the layered coating.Type: GrantFiled: June 30, 2008Date of Patent: January 10, 2012Assignee: GM Global Technology Operations LLCInventors: Leonid C. Lev, Michael J. Lukitsch, Yang T. Cheng, Anita M. Weiner, Robert F. Paluch, Neil E. Anderson
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Publication number: 20090324937Abstract: A layered coating is disclosed herein. The layered coating includes a chromium layer, an intermediate layer of chromium and nitrogen established on the chromium layer, and an outer layer of chromium and nitrogen established on the intermediate layer. The intermediate layer has a gradually changing composition, wherein the chromium concentration decreases from an area of the intermediate layer adjacent the chromium layer towards a surface of the layered coating.Type: ApplicationFiled: June 30, 2008Publication date: December 31, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Leonid C. Lev, Michael J. Lukitsch, Yang T. Cheng, Anita M. Weiner, Robert F. Paluch, Neil E. Anderson
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Patent number: 7294077Abstract: A belt for a continuously variable transmission (CVT) includes at least one continuous band supported against a contact face in a slot formed in each of a plurality of transverse elements of the CVT. The band has a surface positioned against the contact face. This surface is coated with chromium nitride by physical vapor deposition to reduce wear.Type: GrantFiled: February 24, 2004Date of Patent: November 13, 2007Assignee: General Motors CorporationInventors: Yucong Wang, Sohail A. Khan, Beizhi Zhou, Reuben Sarkar, Michael J. Lukitsch, Yang-Tse Cheng, Anita M. Weiner
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Patent number: 7225969Abstract: A surface of an article is heated and subjected to pressure by operation of a friction stir tool. The pressure of the face of the tool on the article surface, and the speed of rotation of the tool and of its progression along the surface of the article, are controlled to progressively hot-work a specified surface area. The face of the tool may be round and have a profiled, axially extending, smaller diameter pin for higher concentration of frictional heat and load and for plasticizing a surface layer of the workpiece. Such hot work may be applied for reducing surface porosity or for producing another change in the surface microstructure, or for effecting another change in surface material properties.Type: GrantFiled: December 10, 2004Date of Patent: June 5, 2007Assignee: GM Global Technology Operations, Inc.Inventors: Yen-Lung Chen, Thomas Arthur Perry, Yang-Tse Cheng, Anita M. Weiner
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Patent number: 7195817Abstract: A diamond coated cutting tool is disclosed having a either steel or cemented carbide substrate. The interior layer disposed between the diamond coating and the substrate inhibits the diffusion of carbon and other species.Type: GrantFiled: September 29, 2003Date of Patent: March 27, 2007Assignee: General Motors CorporationInventors: Leonid C Lev, Yang T Cheng, Michael J Lukitsch, Anita M Weiner
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Patent number: 7138066Abstract: A method of surface treating heat treated members to remove oxide scale. The heat treated members are subjected to a staged series of discrete chemical and physical cleaning steps yielding a substantially scale-free surface readily adaptable for subsequent application of protective coatings.Type: GrantFiled: July 13, 2005Date of Patent: November 21, 2006Assignee: GM Global Technology Operations, Inc.Inventors: Leonid C. Lev, Michael J. Lukitsch, Yang-Tse Cheng, Anita M. Weiner, Robert F. Paluch
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Patent number: 7081293Abstract: A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite.Type: GrantFiled: December 30, 2004Date of Patent: July 25, 2006Assignee: General Motors CorporationInventors: Anita M. Weiner, Curtis A. Wong, Yang-Tse Cheng, Michael P. Balogh, Micheal J. Lukitsch
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Patent number: 7060140Abstract: A self-healing tribological surface comprises a shape memory material. The self-healing tribological surface can be used for recovering a scratches and/or indentations in the surface. Processes for recovering scratches or indentations generally comprises forming a shape memory material onto the surface; scratching or indenting the surface; and heating an area about the scratch or indentation, wherein a depth of the scratch or the indentation decreases after heating as compared to the depth prior to heating.Type: GrantFiled: April 8, 2003Date of Patent: June 13, 2006Assignees: General Motors Corporation, Michigan State UniversityInventors: Yang-Tse Cheng, Wangyang Ni, Michael J. Lukitsch, Anita M. Weiner, David S. Grummon
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Patent number: 7005195Abstract: A material and method for adhering at least two materials that includes the step of interposing at least one intermediate layer between the two materials and associated adhesion material. The materials to be adhered exhibit at least one characteristic dissimilarity and the intermediate material interposed contains at least one shape memory alloy, the shape memory alloy capable of exhibiting superelasticity.Type: GrantFiled: February 8, 2005Date of Patent: February 28, 2006Assignees: General Motors Corporation, Michigan State UniversityInventors: Yang-Tse Cheng, Wangyang Ni, Leonid Charles Lev, Michael J. Lukitsch, David S. Grummon, Anita M. Weiner
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Patent number: 6866730Abstract: A material and method for adhering at least two materials that includes the step of interposing at least one intermediate layer between the two materials and associated adhesion material. The materials to be adhered exhibit at least one characteristic dissimilarity and the intermediate material interposed contains at least one shape memory alloy, the shape memory alloy capable of exhibiting -superelasticity.Type: GrantFiled: March 21, 2003Date of Patent: March 15, 2005Assignees: General Motors Corporation, Michigan State UniversityInventors: Yang-Tse Cheng, Wangyang Ni, Leonid Charles Lev, Michael J. Lukitsch, David S. Grummon, Anita M. Weiner
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Patent number: 6841235Abstract: A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite.Type: GrantFiled: October 11, 2002Date of Patent: January 11, 2005Assignee: General Motors CorporationInventors: Anita M. Weiner, Curtis A. Wong, Yang-Tse Cheng, Michael P. Balogh, Michael J. Lukitsch
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Publication number: 20040202888Abstract: A self-healing tribological surface comprises a shape memory material. The self-healing tribological surface can be used for recovering a scratches and/or indentations in the surface. Processes for recovering scratches or indentations generally comprises forming a shape memory material onto the surface; scratching or indenting the surface; and heating an area about the scratch or indentation, wherein a depth of the scratch or the indentation decreases after heating as compared to the depth prior to heating.Type: ApplicationFiled: April 8, 2003Publication date: October 14, 2004Inventors: Yang-Tse Cheng, Wangyang Ni, Michael J. Lukitsch, Anita M. Weiner, David S. Grummon
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Publication number: 20040146710Abstract: A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite.Type: ApplicationFiled: January 29, 2003Publication date: July 29, 2004Inventors: Anita M. Weiner, Curtis A. Wong, Yang-Tse Cheng, Michael P. Balogh, Michael J. Lukitsch
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Patent number: 5535905Abstract: The invention generally includes a new technique for making cubic boron nitride films with low contamination from other forms of boron nitride such as hexagonal and amorphous boron nitride. Films including either hexagonal or amorphous boron nitride are etched in a gas atmosphere including a halogen and/or hydrocarbon radical, preferably a methyl radical (CH.sub.3 ). Such atmospheres may be a plasma etching atmosphere also including hydrogen and hydrogen atoms. The etching technique is successful in removing hexagonal or amorphous boron nitride and leaving cubic boron nitride, or in converting hexagonal or amorphous boron nitride into cubic boron nitride, thus increasing the concentration of cubic boron nitride in the film. Interestingly, little or no etching of hexagonal or amorphous boron nitride occurs using only hydrogen or hydrogen atoms.Type: GrantFiled: July 29, 1994Date of Patent: July 16, 1996Assignee: General Motors CorporationInventors: Stephen J. Harris, Anita M. Weiner, Gary L. Doll, Brian K. Fuller