Patents by Inventor Eric L. Couch
Eric L. Couch 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: 8955576Abstract: A core assembly for a turbine engine blade includes a generally radially extending trunk interconnected to multiple generally axially extending tabs. The tabs are interconnected by a generally radially extending ligament. Multiple generally axially extending protrusions are interconnected to the ligament opposite the trunk. A mold is configured to define an exterior surface of an airfoil. The core is arranged within the mold and is configured such that the tabs and the ligament break through at the exterior surface.Type: GrantFiled: January 15, 2014Date of Patent: February 17, 2015Assignee: United Technologies CorporationInventors: Jason Edward Albert, Atul Kohli, Eric L. Couch
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Publication number: 20140190654Abstract: A core assembly for a turbine engine blade includes a generally radially extending trunk interconnected to multiple generally axially extending tabs. The tabs are interconnected by a generally radially extending ligament. Multiple generally axially extending protrusions are interconnected to the ligament opposite the trunk. A mold is configured to define an exterior surface of an airfoil. The core is arranged within the mold and is configured such that the tabs and the ligament break through at the exterior surface.Type: ApplicationFiled: January 15, 2014Publication date: July 10, 2014Applicant: United Technologies CorporationInventors: Jason Edward Albert, Atul Kohli, Eric L. Couch
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Patent number: 8695683Abstract: An airfoil for a turbine engine includes a structure having a cooling passage that has a generally radially extending cooling passageway arranged interiorly relative to an exterior surface of the structure. The cooling passageway includes multiple cooling slots extending there from toward the exterior surface and interconnected by a radially extending trench. The trench breaks the exterior surface, and the exterior surface provides the lateral walls of the trench. The airfoil is manufactured by providing a core having multiple generally axially extending tabs and a generally radially extending ligament interconnecting the tabs. The structure is formed about the core to provide the airfoil with its exterior surface. The ligament breaks the exterior surface to form the radially extending trench in the exterior surface of the structure.Type: GrantFiled: June 14, 2011Date of Patent: April 15, 2014Assignee: United Technologies CorporationInventors: Jason Edward Albert, Atul Kohli, Eric L. Couch
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Patent number: 8393867Abstract: An airfoil assembly includes an airfoil with at least one cavity that is in communication with a source of cooling air. A baffle is disposed within that cavity and includes a plurality of openings for directing cooling air against the hot wall. A plurality of dividers extends between the baffle walls and the internal cavity to direct cooling air toward one of a leading edge chamber and a trailing edge chamber.Type: GrantFiled: March 31, 2008Date of Patent: March 12, 2013Assignee: United Technologies CorporationInventors: Young H. Chon, Tracy A. Propheter-Hinckley, Eric L. Couch
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Publication number: 20120027619Abstract: An airfoil for a turbine engine includes a structure having a cooling passage that has a generally radially extending cooling passageway arranged interiorly relative to an exterior surface of the structure. The cooling passageway includes multiple cooling slots extending there from toward the exterior surface and interconnected by a radially extending trench. The trench breaks the exterior surface, and the exterior surface provides the lateral walls of the trench. The airfoil is manufactured by providing a core having multiple generally axially extending tabs and a generally radially extending ligament interconnecting the tabs. The structure is formed about the core to provide the airfoil with its exterior surface. The ligament breaks the exterior surface to form the radially extending trench in the exterior surface of the structure.Type: ApplicationFiled: June 14, 2011Publication date: February 2, 2012Inventors: Jason Edward Albert, Atul Kohli, Eric L. Couch
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Patent number: 7980819Abstract: An airfoil for a turbine engine includes a structure having a cooling passage that has a generally radially extending cooling passageway arranged interiorly relative to an exterior surface of the structure. The cooling passageway includes multiple cooling slots extending there from toward the exterior surface and interconnected by a radially extending trench. The trench breaks the exterior surface, and the exterior surface provides the lateral walls of the trench. The airfoil is manufactured by providing a core having multiple generally axially extending tabs and a generally radially extending ligament interconnecting the tabs. The structure is formed about the core to provide the airfoil with its exterior surface. The ligament breaks the exterior surface to form the radially extending trench in the exterior surface of the structure.Type: GrantFiled: March 14, 2007Date of Patent: July 19, 2011Assignee: United Technologies CorporationInventors: Jason Edward Albert, Atul Kohli, Eric L. Couch
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Patent number: 7753104Abstract: A method involves forming a core assembly. The forming includes molding a first ceramic core over a first refractory metal core to form a core subassembly. The subassembly is assembled to a second ceramic core.Type: GrantFiled: October 18, 2006Date of Patent: July 13, 2010Assignee: United Technologies CorporationInventors: Blake J. Luczak, Eric A. Hudson, James T. Beals, Eric L. Couch
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Publication number: 20100116452Abstract: A method involves forming a core assembly. The forming includes molding a first ceramic core over a first refractory metal core to form a core subassembly. The subassembly is assembled to a second ceramic core.Type: ApplicationFiled: October 18, 2006Publication date: May 13, 2010Inventors: Blake J. Luczak, Eric A. Hudson, James T. Beals, Eric L. Couch
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Publication number: 20090246023Abstract: An airfoil assembly includes an airfoil with at least one cavity that is in communication with a source of cooling air. A baffle is disposed within that cavity and includes a plurality of openings for directing cooling air against the hot wall. A plurality of dividers extends between the baffle walls and the internal cavity to direct cooling air toward one of a leading edge chamber and a trailing edge chamber.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Inventors: Young H. Chon, Tracy A. Propheter-Hinckley, Eric L. Couch
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Publication number: 20080226462Abstract: An airfoil for a turbine engine includes a structure having a cooling passage that has a generally radially extending cooling passageway arranged interiorly relative to an exterior surface of the structure. The cooling passageway includes multiple cooling slots extending there from toward the exterior surface and interconnected by a radially extending trench. The trench breaks the exterior surface, and the exterior surface provides the lateral walls of the trench. The airfoil is manufactured by providing a core having multiple generally axially extending tabs and a generally radially extending ligament interconnecting the tabs. The structure is formed about the core to provide the airfoil with its exterior surface. The ligament breaks the exterior surface to form the radially extending trench in the exterior surface of the structure.Type: ApplicationFiled: March 14, 2007Publication date: September 18, 2008Inventors: Jason Edward Albert, Atul Kohli, Eric L. Couch
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Patent number: 7322795Abstract: A cooled cast part has an exterior surface. A cooling passageway system extends from at least one inlet port to a plurality of outlet ports. The passageway system includes a first passageway to at least a first of the outlets and surrounding at least one post. The system includes a second passageway to at least a second of the outlets passing through the at least one post.Type: GrantFiled: January 27, 2006Date of Patent: January 29, 2008Assignee: United Technologies CorporationInventors: Blake J. Luczak, Eric L. Couch