Patents by Inventor James T. Petroski
James T. Petroski 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: 9944519Abstract: A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.Type: GrantFiled: March 20, 2012Date of Patent: April 17, 2018Assignee: GE Lighting Solutions, LLCInventors: Christopher L. Bohler, Boris Kolodin, Emil Radkov, Srinath K. Aanegola, Stanton E. Weaver, Jr., James T. Petroski, Zena Brown
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Patent number: 9664368Abstract: A light bulb (10) including an outer housing (12) shaped like a standard Edison light bulb. The interior of the bulb includes a circuit board (24) and one or more LEDs (26). A heat sink (30) is provided inside the bulb housing that draws thermal energy away from the LEDs using graphite based materials.Type: GrantFiled: January 19, 2012Date of Patent: May 30, 2017Assignee: Advanced Energy Technologies LLCInventor: James T. Petroski
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Patent number: 9046253Abstract: A luminaire includes two housing halves, movable relative to each other between an open and closed configuration. The bottom housing half includes disposed therein a substrate which itself carries at least one LED which transmits light through a window in the bottom housing half. A thermal bridge made of at least one layer of anisotropic thermally conductive graphite is in thermal contact with the substrate and the top housing half when the housing is in the closed configuration, but its disengaged from either the substrate or top housing half when the housing is in the open configuration.Type: GrantFiled: January 27, 2012Date of Patent: June 2, 2015Assignee: GrafTech International Holdings Inc.Inventor: James T. Petroski
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Patent number: 8963405Abstract: A light bulb includes a light guide, light source, and housing. The light guide is configured as an open-ended hollow body surrounding an internal volume and defining a longitudinal axis. The light guide has inner and outer major surfaces. The light source is configured to edge light the light guide. The housing is at one end of the light guide. In one embodiment, fins extend from the housing adjacent the outer major surface, each fin separated from the outer major surface by an air gap to allow air flow between the fin and outer major surface. In another embodiment, a heat sink is disposed in the internal volume and configured as a hollow body with a branched cross section. Each branch extends outward from a common center and defines an air flow channel that terminates in an orifice aligned with a respective through-slot of the light guide.Type: GrantFiled: August 9, 2012Date of Patent: February 24, 2015Assignee: Rambus Delaware LLCInventors: James T. Petroski, Witold Bauer, Jeffery R. Parker
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Patent number: 8773856Abstract: An electronic device includes an electronic component with a mating surface. A thermal interface sheet is attached to the mating surface. A substrate carries the electronic device and includes a face. The electronic component is secured to the substrate with the thermal interface sheet positioned between the mating surface and the face. The mating surface is relatively less flat than the face and the mating surface is relatively smoother than the face.Type: GrantFiled: November 7, 2011Date of Patent: July 8, 2014Assignee: GrafTech International Holdings Inc.Inventor: James T. Petroski
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Publication number: 20130294096Abstract: A luminaire includes two housing halves, movable relative to each other between an open and closed configuration. The bottom housing half includes disposed therein a substrate which itself carries at least one LED which transmits light through a window in the bottom housing half. A thermal bridge made of at least one layer of anisotropic thermally conductive graphite is in thermal contact with the substrate and the top housing half when the housing is in the closed configuration, but its disengaged from either the substrate or top housing half when the housing is in the open configuration.Type: ApplicationFiled: January 27, 2012Publication date: November 7, 2013Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventor: James T. Petroski
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Publication number: 20130285529Abstract: A light bulb (10) including an outer housing (12) shaped like a standard Edison light bulb. The interior of the bulb includes a circuit board (24) and one or more LEDs (26). A heat sink (30) is provided inside the bulb housing that draws thermal energy away from the LEDs using graphite based materials.Type: ApplicationFiled: January 19, 2012Publication date: October 31, 2013Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventor: James T. Petroski
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Patent number: 8405600Abstract: A method for reducing temperature-caused degradation of the performance of a digital reader comprising pixels, the method including positioning at least one sheet of compressed particles of exfoliated graphite adjacent to a plurality of the pixels of the digital reader.Type: GrantFiled: December 4, 2009Date of Patent: March 26, 2013Assignee: GrafTech International Holdings Inc.Inventors: Bradley E. Reis, Robert Anderson Reynolds, III, James T. Petroski, Yin Xiong
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Publication number: 20130038195Abstract: A light bulb includes a light guide, light source, and housing. The light guide is configured as an open-ended hollow body surrounding an internal volume and defining a longitudinal axis. The light guide has inner and outer major surfaces. The light source is configured to edge light the light guide. The housing is at one end of the light guide. In one embodiment, fins extend from the housing adjacent the outer major surface, each fin separated from the outer major surface by an air gap to allow air flow between the fin and outer major surface. In another embodiment, a heat sink is disposed in the internal volume and configured as a hollow body with a branched cross section. Each branch extends outward from a common center and defines an air flow channel that terminates in an orifice aligned with a respective through-slot of the light guide.Type: ApplicationFiled: August 9, 2012Publication date: February 14, 2013Applicant: RAMBUS INC.Inventors: James T. Petroski, Witold Bauer, Jeffery R. Parker
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Patent number: 8322889Abstract: An electronic device having enhanced heat dissipation capabilities includes an electronic device, a heat sink, a channel, a piezoelectric element, and a blade. The heat sink is in thermal communication with the electronic device. The channel includes an inlet, an outlet and a constriction disposed along the channel between the inlet and the outlet. The heat sink defines at least a portion of the channel. The blade includes a free end and an attached end. The blade is disposed in the channel and connected to the piezoelectric element. The piezoelectric element is activated to move the blade side to side in the channel to create air vortices. The constriction in the channel and the blade cooperate with one another such that a vortex that is generated as the blade moves toward a first side of the channel is compressed against the first side of the channel and expelled towards the outlet of the channel.Type: GrantFiled: September 12, 2006Date of Patent: December 4, 2012Assignee: GE Lighting Solutions, LLCInventor: James T. Petroski
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Publication number: 20120230012Abstract: A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light The enclosure (22) has a shape of a standard incandescent lamp.Type: ApplicationFiled: March 20, 2012Publication date: September 13, 2012Inventors: Christopher L. Bohler, Boris Kolodin, Emil Radkov, Srinath K. Aanegola, Stanton E. Weaver, JR., James T. Petroski, Zena Brown
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Publication number: 20120176770Abstract: A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Inventors: Christopher L. Bohler, Boris Kolodin, Emil Radkov, Srinath K. Aanegola, Stanton E. Weaver, JR., James T. Petroski, Zena Brown
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Publication number: 20120176804Abstract: A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Inventors: Christopher L. Bohler, Boris Kolodin, Emil Radkov, Srinath K. Aanegola, Stanton E. Weaver, JR., James T. Petroski, Zena Brown
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Publication number: 20120113595Abstract: An electronic device includes an electronic component with a mating surface. A thermal interface sheet is attached to the mating surface. A substrate carries the electronic device and includes a face. The electronic component is secured to the substrate with the thermal interface sheet positioned between the mating surface and the face. The mating surface is relatively less flat than the face and the mating surface is relatively smoother than the face.Type: ApplicationFiled: November 7, 2011Publication date: May 10, 2012Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventor: James T. Petroski
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Patent number: D662898Type: GrantFiled: March 24, 2011Date of Patent: July 3, 2012Assignee: GrafTech International Holdings Inc.Inventor: James T. Petroski
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Patent number: D670412Type: GrantFiled: January 6, 2012Date of Patent: November 6, 2012Assignee: Rambus Inc.Inventors: Jeffery R. Parker, Lukasz S. Poslowski, James T. Petroski
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Patent number: D670413Type: GrantFiled: January 6, 2012Date of Patent: November 6, 2012Assignee: Rambus Inc.Inventors: Jeffery R. Parker, Lukasz S. Poslowski, James T. Petroski
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Patent number: D677227Type: GrantFiled: March 24, 2011Date of Patent: March 5, 2013Assignee: GrafTech International Holdings Inc.Inventor: James T. Petroski
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Patent number: D686769Type: GrantFiled: October 2, 2011Date of Patent: July 23, 2013Assignee: GrafTech International Holdings Inc.Inventors: James T. Petroski, Bradley E. Reis
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Patent number: D700719Type: GrantFiled: March 9, 2012Date of Patent: March 4, 2014Assignee: Rambus Delaware LLCInventors: Jeffery R. Parker, James T. Petroski, Witold Bauer