Patents by Inventor Charlie H. Sarver
Charlie H. Sarver 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: 9257229Abstract: A coil for a transformer includes first and second coil segments with each coil segment being defined by successive layers of wound conductor sheeting. The coil segments are electrically connected together and are adjacent, defining a space there-between. A plurality of cooling duct pairs are disposed between certain of the layers in each of the first and second coil segments such that, for each cooling duct pair, an end of a cooling duct disposed in the first coil segment is adjacent to an end of a cooling duct disposed in the second coil segment, with the ends being disposed in the space. A connector connects the adjacent ends of each pair of cooling ducts.Type: GrantFiled: May 9, 2012Date of Patent: February 9, 2016Assignee: ABB Technology AGInventors: Charlie H. Sarver, William E. Pauley
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Publication number: 20160035488Abstract: A coil for a transformer includes first and second coil segments with each coil segment being defined by successive layers of wound conductor sheeting. The coil segments are electrically connected together and are adjacent, defining a space there-between. A plurality of cooling duct pairs are disposed between certain of the layers in each of the first and second coil segments such that, for each cooling duct pair, an end of a cooling duct disposed in the first coil segment is adjacent to an end of a cooling duct disposed in the second coil segment, with the ends being disposed in the space. A connector connects the adjacent ends of each pair of cooling ducts.Type: ApplicationFiled: October 13, 2015Publication date: February 4, 2016Inventors: Charlie H. Sarver, William E. Pauley
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Publication number: 20140361861Abstract: A method provides a medium voltage radial drop winding for an open wound transformers. The method arranges a plurality of non-electrically conductive supports to extend outwardly from a periphery of an imaginary geometric shape so as to define an interior space. Each support includes a pair of opposing legs disposed in spaced relation and a bottom leg coupling the opposing legs to define at least one elongated slot between the opposing legs. Each slot has an open end. Conductive wire is dropped into the open end of each of the slots to substantially fill the slots and define at least one generally cylindrical winding segment carried by the supports.Type: ApplicationFiled: June 11, 2013Publication date: December 11, 2014Inventors: Robert C. Ballard, Ryan Christian Tyler Alkire, Charles W. Johnson, Jr., Charlie H. Sarver
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Publication number: 20140210124Abstract: A coil for a transformer includes first and second coil segments with each coil segment being defined by successive layers of wound conductor sheeting. The coil segments are electrically connected together and are adjacent, defining a space therebetween. A plurality of cooling duct pairs are disposed between certain of the layers in each of the first and second coil segments such that, for each cooling duct pair, an end of a cooling duct disposed in the first coil segment is adjacent to an end of a cooling duct disposed in the second coil segment, with the ends being disposed in the space. A connector connects the adjacent ends of each pair of cooling ducts.Type: ApplicationFiled: May 9, 2012Publication date: July 31, 2014Applicant: ABB TECHNOLOGY AGInventors: Charlie H. Sarver, William E. Pauley
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Patent number: 8228155Abstract: A multi-point connection module comprising a supporting plate provided with a plurality of taps, and a connector which is coupled to the supporting plate. The connector allows the connection of the supporting plate to an external face of a transformer coil having a plurality of turns. The taps are arranged on the supporting plate so that they mate with corresponding turns of the coil.Type: GrantFiled: November 17, 2006Date of Patent: July 24, 2012Assignee: ABB Technology AGInventors: Charlie H Sarver, Bobby Phil Goodson, Joey Lee Chandler
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Patent number: 7905009Abstract: A method of forming a transformer coil, wherein first and second fibrous layers are provided. Each of the first and second fibrous layers includes a fabric formed from a plurality of interconnected fibers and a plurality of spacers affixed to the fabric and protruding therefrom. A conductor layer is disposed over the first fibrous layer such that a first side of the conductor layer contacts the spacers of the first fibrous layer. The second fibrous layer is disposed over the conductor layer such that a second side of the conductor layer contacts the spacers of the second fibrous layer. A resin is applied so as to cover the conductor layer and the first and second fibrous layers.Type: GrantFiled: May 24, 2007Date of Patent: March 15, 2011Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Rush Horton, Jr., Charlie H. Sarver, Curtis H. Frye
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Patent number: 7886424Abstract: A method of manufacturing a transformer is provided. The method includes forming a disc-wound coil by forming a first conductor layer, a second conductor layer and a layer of cooling ducts between the first and second conductor layers. The first and second conductor layers each have a plurality of disc windings arranged in an axial direction of the disc-wound coil. Each of the disc windings includes a conductor wound into a plurality of concentric turns.Type: GrantFiled: March 11, 2010Date of Patent: February 15, 2011Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Charlie H. Sarver, Rush B. Horton, Jr.
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Patent number: 7882615Abstract: The present invention is directed to a method of forming a transformer having a stacked core, which includes upper and lower yokes and first and second outer legs. The core also includes one or more inner legs. Each of the upper and lower yokes is formed from a stack of plates and has a rectangular cross-section. Each inner leg is formed from a stack of plates and has a cruciform cross-section. Each of the first and second outer legs is formed from a stack of plates and may have a cruciform cross-section.Type: GrantFiled: July 18, 2007Date of Patent: February 8, 2011Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Charlie H. Sarver, Rush B. Horton, Jr.
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Patent number: 7877861Abstract: The present invention is directed to a method of making a transformer having a stacked core, which includes top and bottom yokes and first and second outer legs. The core also includes an inner leg that is formed from a pair of stacked plates, which abut each along a seam that extends in the longitudinal direction of the inner leg. Each of the upper and lower yokes may be formed from a single stack of plates, or a plurality of stacks of plates. Each of the inner and outer legs may also be formed from a single stack of plates, or a plurality of stacks of plates. The cross-section of the core may be rectangular or cruciform.Type: GrantFiled: September 29, 2006Date of Patent: February 1, 2011Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Charlie H. Sarver, Rush B. Horton, Jr.
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Patent number: 7788794Abstract: A transformer and a method of manufacturing the same are provided. The transformer includes a coil assembly mounted to a leg of a core. The coil assembly includes a low voltage coil and an insulation spool disposed over the low voltage coil. The insulation spool is composed of an insulating material and includes a plurality of guide strips defining a plurality of series of aligned notches. A high voltage coil is mounted to the insulation spool and includes a plurality of disc windings disposed in the series of aligned notches, respectively. Each of the disc windings comprises alternating concentric conductor layers and insulating layers. The conductor layers each have a width to thickness ratio of greater than 20:1.Type: GrantFiled: May 30, 2006Date of Patent: September 7, 2010Assignee: ABB Technology AGInventors: Charlie H. Sarver, William E. Pauley, Jr., Rush B. Horton, Jr.
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Publication number: 20100162557Abstract: A method of manufacturing a transformer is provided. The method includes forming a disc-wound coil by forming a first conductor layer, a second conductor layer and a layer of cooling ducts between the first and second conductor layers. The first and second conductor layers each have a plurality of disc windings arranged in an axial direction of the disc-wound coil. Each of the disc windings includes a conductor wound into a plurality of concentric turns.Type: ApplicationFiled: March 11, 2010Publication date: July 1, 2010Applicant: ABB TECHNOLOGY AGInventors: William E. Pauley, JR., Charlie H. Sarver, Rush B. Horton, JR.
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Patent number: 7719397Abstract: The invention is directed to a transformer and a method of manufacturing the same, wherein the transformer has a cylindrical disc-wound coil that includes a layer of cooling ducts disposed between first and second conductor layers. The first and second conductor layers each have a plurality of disc windings arranged in an axial direction of the disc-wound coil. Each of the disc windings includes a conductor wound into a plurality of concentric turns.Type: GrantFiled: July 27, 2006Date of Patent: May 18, 2010Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Charlie H. Sarver, Rush B. Horton, Jr.
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Patent number: 7688170Abstract: A transformer coil assembly includes a first layer having a plurality of fibers interconnected to form a fabric and a plurality of spacers. Each spacer is affixed on a first side of the spacer to the fabric and protruding from a first surface of the fabric. A second layer has a conductor in contact with at least one of the plurality of spacers on a second side of each spacer that opposes the first side. The first and second layers are covered by resin.Type: GrantFiled: June 1, 2004Date of Patent: March 30, 2010Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Rush Horton, Jr., Curtis Frye, Charlie H. Sarver
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Patent number: 7647692Abstract: A method of manufacturing a dry-type, resin-encapsulated transformer coil that includes forming a plurality of conductive layers and positioning a plurality of pre-formed plastic cooling ducts so as to be disposed between the conductive layers.Type: GrantFiled: February 14, 2006Date of Patent: January 19, 2010Assignee: ABB Technology AGInventors: Thomas J. Lanoue, Michael J. Mitchell, William E. Pauley, Jr., Charlie H. Sarver
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Publication number: 20080136573Abstract: A multi-point connection module comprising a supporting plate provided with a plurality of taps, and a connector which is coupled to the supporting plate. The connector allows the connection of the supporting plate to an external face of a transformer coil having a plurality of turns. The taps are arranged on the supporting plate so that they mate with corresponding turns of the coil.Type: ApplicationFiled: November 17, 2006Publication date: June 12, 2008Inventors: Charlie H. Sarver, Bobby Phil Goodson, Joey Lee Chandler
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Publication number: 20080024256Abstract: The invention is directed to a transformer and a method of manufacturing the same, wherein the transformer has a cylindrical disc-wound coil that includes a layer of cooling ducts disposed between first and second conductor layers. The first and second conductor layers each have a plurality of disc windings arranged in an axial direction of the disc-wound coil. Each of the disc windings includes a conductor wound into a plurality of concentric turns.Type: ApplicationFiled: July 27, 2006Publication date: January 31, 2008Inventors: William E. Pauley, Charlie H. Sarver, Rush B. Horton
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Publication number: 20070279177Abstract: The invention is directed to a transformer and a method of manufacturing the same, wherein the transformer includes a coil assembly mounted to a leg of a core. The coil assembly includes a low voltage coil and an insulation spool disposed over the low voltage coil. The insulation spool is composed of an insulating material and includes a plurality of guide strips defining a plurality of series of aligned notches. A high voltage coil is mounted to the insulation spool and includes a plurality of disc windings disposed in the series of aligned notches, respectively. Each of the disc windings comprises alternating concentric conductor layers and insulating layers. The conductor layers each have a width to thickness ratio of greater than 20:1.Type: ApplicationFiled: May 30, 2006Publication date: December 6, 2007Inventors: Charlie H. Sarver, William E. Pauley, Rush B. Horton
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Patent number: 7256677Abstract: The present invention is directed to a transformer having a stacked core, which includes upper and lower yokes and first and second outer legs. The core also includes one or more inner legs. Each of the upper and lower yokes is formed from a stack of plates and has a rectangular cross-section. Each inner leg is formed from a stack of plates and has a cruciform cross-section. Each of the first and second outer legs is formed from a stack of plates and may have a cruciform cross-section.Type: GrantFiled: March 30, 2005Date of Patent: August 14, 2007Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Charlie H. Sarver, Rush B. Horton, Jr.
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Patent number: 7199696Abstract: The present invention is directed to a transformer having a stacked core, which includes top and bottom yokes and first and second outer legs. The core also includes an inner leg that is formed from a pair of stacked plates, which abut each along a seam that extends in the longitudinal direction of the inner leg. Each of the upper and lower yokes may be formed from a single stack of plates, or a plurality of stacks of plates. Each of the inner and outer legs may also be formed from a single stack of plates, or a plurality of stacks of plates. The cross-section of the core may be rectangular or cruciform.Type: GrantFiled: March 30, 2005Date of Patent: April 3, 2007Assignee: ABB Technology AGInventors: William E. Pauley, Jr., Charlie H. Sarver, Rush B. Horton, Jr.
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Patent number: 7023312Abstract: A dry-type, resin-encapsulated transformer coil that includes multiple layers formed from a length of conductive material, and multiple cooling ducts that are formed of thermoplastic material and spaced between the layers of conductive material. The thermoplastic material forming the cooling ducts and the resin that encapsulates the multiple layers of conductive material are thermally and electrically compatible.Type: GrantFiled: December 21, 2001Date of Patent: April 4, 2006Assignee: ABB Technology AGInventors: Thomas J. Lanoue, Michael J. Mitchell, William E. Pauley, Jr., Charlie H. Sarver