Patents by Inventor Kevin J. Klinefelter
Kevin J. Klinefelter 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: 10203196Abstract: A method is provided for inspecting at least one aperture of a component with curable material and an inspection system. At least a portion of the curable material is injected into the aperture. The curable material conforms to at least a portion the aperture and subsequently cures and forms a mold of at least a portion of the aperture. The mold is removed from the aperture. At least a portion of a geometry of the mold is compared to at least a portion of a geometry of a reference model for the aperture using the inspection system.Type: GrantFiled: February 25, 2014Date of Patent: February 12, 2019Assignee: United Technologies CorporationInventors: Gordon M. Reed, James Romanelli, James M. Koonankeil, Kevin J. Klinefelter, Markus W. Fritch, Kenneth J. Hollman, Jeffrey S. Beattie
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Patent number: 9777591Abstract: A resonant frequency testing system for airfoils comprises a broach block, a clamp, an acoustic speaker, a laser vibrometer, and a control processor assembly. The broach block has a slot disposed to receive the airfoil in an airfoil location. The clamp has a torque-actuated shutoff, and is disposed to lock the airfoil in the broach block slot under a fixed clamping force. The acoustic sensor is disposed adjacent the airfoil location to emit sonic pulses, and the laser vibrometer is oriented towards the airfoil location to sense vibration signatures of the airfoil when excited by the sonic pulses. The control processor assembly is configured to control the acoustic speaker and laser vibrometer, to decompose the sensed vibration signatures into resonant frequencies of the airfoil, and to store the resonant frequencies in a digital storage database, correlated with a unique ID corresponding to the airfoil.Type: GrantFiled: February 11, 2015Date of Patent: October 3, 2017Assignee: United Technologies CorporationInventors: Steven Tine, Richard A. Lomenzo, Jr., Kevin J. Klinefelter, Elizabeth F. Vinson, Kaitlin Olsen, Thomas R. Davis
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Patent number: 9561555Abstract: A method of machining cooling holes in a component includes the steps of inserting an electro discharge machining guide that houses an electrode into an internal cavity of a component, and machining a cooling hole into a wall of the component with the electrode. A gas turbine engine component includes first and second spaced apart walls providing an internal cavity. The first wall has outer and inner surfaces. The inner surface faces the internal cavity. A cooling hole extends through the first wall from the inner surface to the outer surface. The cooling hole includes entry and exit openings respectively provided in the inner and outer surfaces. The exit opening includes a cross-sectional area that is smaller than a cross-sectional area of the entry opening.Type: GrantFiled: December 28, 2012Date of Patent: February 7, 2017Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: James M. Koonankeil, Edward F. Pietraszkiewicz, Karl A. Schachtner, Kevin J. Klinefelter, Markus W. Fritch, Jason Daley
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Patent number: 9476842Abstract: A method and system are provided for inspecting a plurality of target features arrayed in spaced arrangement on a surface of a target object, such as but not limited to inspection of the location of cooling air holes in the surface of a turbine blade or vane.Type: GrantFiled: June 20, 2014Date of Patent: October 25, 2016Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Joseph D. Drescher, Eric M. Pedersen, Kevin J. Klinefelter, Markus W. Fritch
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Publication number: 20160230588Abstract: A resonant frequency testing system for airfoils comprises a broach block, a clamp, an acoustic speaker, a laser vibrometer, and a control processor assembly. The broach block has a slot disposed to receive the airfoil in an airfoil location. The clamp has a torque-actuated shutoff, and is disposed to lock the airfoil in the broach block slot under a fixed clamping force. The acoustic sensor is disposed adjacent the airfoil location to emit sonic pulses, and the laser vibrometer is oriented towards the airfoil location to sense vibration signatures of the airfoil when excited by the sonic pulses.Type: ApplicationFiled: February 11, 2015Publication date: August 11, 2016Inventors: Steven Tine, Richard A. Lomenzo,, JR., Kevin J. Klinefelter, Elizabeth F. Vinson, Kaitlin Olsen, Thomas R. Davis
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Publication number: 20160003607Abstract: A method is provided for inspecting at least one aperture of a component with curable material and an inspection system. At least a portion of the curable material is injected into the aperture. The curable material conforms to at least a portion the aperture and subsequently cures and forms a mold of at least a portion of the aperture. The mold is removed from the aperture. At least a portion of a geometry of the mold is compared to at least a portion of a geometry of a reference model for the aperture using the inspection system.Type: ApplicationFiled: February 25, 2014Publication date: January 7, 2016Inventors: Gordon M. Reed, James Romanelli, James M. Koonankeil, Kevin J. Klinefelter, Markus W. Fritch, Kenneth J. Hollman, Jeffrey S. Beattie
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Patent number: 9024226Abstract: A method for forming a cooling hole extending from an inlet on a first surface of a wall to an outlet on a second surface of the wall includes forming a diffusing section of the cooling hole, and a trailing edge on the outlet by electrical discharge machining, and forming longitudinal lobes in the diffusing section. The metering section extends from the inlet on a first surface of the wall towards the second surface of the wall. The diffusing section extends from the outlet to one end of a metering section located between the inlet and the outlet. The outlet is substantially linear or convex at the trailing edge and the lobes are separated by longitudinal ridges.Type: GrantFiled: July 9, 2012Date of Patent: May 5, 2015Assignee: United Technologies CorporationInventors: Glenn Levasseur, Edward F. Pietraszkiewicz, Mark F. Zelesky, Dominic J. Mongillo, Jr., Kevin J. Klinefelter, Stephen D. Doll, Markus W. Fritch
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Publication number: 20140300729Abstract: A method and system are provided for inspecting a plurality of target features arrayed in spaced arrangement on a surface of a target object, such as but not limited to inspection of the location of cooling air holes in the surface of a turbine blade or vane.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Joseph D. Drescher, Eric M. Pedersen, Kevin J. Klinefelter, Markus W. Fritch
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Publication number: 20140300728Abstract: A method and system are provided for inspecting a plurality of target features arrayed in spaced arrangement on a surface of a target object, such as but not limited to inspection of the location of cooling air holes in the surface of a turbine blade or vane.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Joseph D. Drescher, Eric M. Pedersen, Kevin J. Klinefelter, Markus W. Fritch
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Publication number: 20140183164Abstract: An electro discharge machining system includes a guide having first and second portions that are non-colinear with respect to one another. A consumable electrode is housed within the guide and configured to drill cooling holes in a component. A controller is programmed to position the guide and electrode to a desired position with respect to the component. An electro discharge machining guide includes first and second portions that are non-colinear with respect to one another and that include a passage configured to receive an electrode.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: James M. Koonankeil, Markus W. Fritch, Jason Daley, Edward F. Pietraszkiewicz, Karl A. Schachtner, Kevin J. Klinefelter
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Publication number: 20140186164Abstract: A method of machining cooling holes in a component includes the steps of inserting an electro discharge machining guide that houses an electrode into an internal cavity of a component, and machining a cooling hole into a wall of the component with the electrode. A gas turbine engine component includes first and second spaced apart walls providing an internal cavity. The first wall has outer and inner surfaces. The inner surface faces the internal cavity. A cooling hole extends through the first wall from the inner surface to the outer surface. The cooling hole includes entry and exit openings respectively provided in the inner and outer surfaces. The exit opening includes a cross-sectional area that is smaller than a cross-sectional area of the entry opening.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: James M. Koonankeil, Edward F. Pietraszkiewicz, Karl A. Schachtner, Kevin J. Klinefelter, Markus W. Fritch, Jason Daley
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Publication number: 20130206733Abstract: A method for forming a cooling hole extending from an inlet on a first surface of a wall to an outlet on a second surface of the wall includes forming a diffusing section of the cooling hole, and a trailing edge on the outlet by electrical discharge machining, and forming longitudinal lobes in the diffusing section. The metering section extends from the inlet on a first surface of the wall towards the second surface of the wall. The diffusing section extends from the outlet to one end of a metering section located between the inlet and the outlet. The outlet is substantially linear or convex at the trailing edge and the lobes are separated by longitudinal ridges.Type: ApplicationFiled: July 9, 2012Publication date: August 15, 2013Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Glenn Levasseur, Edward F. Pietraszkiewicz, Mark F. Zelesky, Dominic J. Mongillo, JR., Kevin J. Klinefelter, Stephen D. Doll, Markus W. Fritch
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Publication number: 20110132876Abstract: The diffusion opening in the cooling hole of an airfoil is formed by an EDM process in which the outwardly flaring sidewalls of the opening, rather then having surfaces that are approximated to be smooth by having many small ribs formed therein, are formed with a relatively few ribs with both longitudinally extending and radially extending surfaces that are substantially greater in dimension than those as normally formed. In this manner, the machining process is simplified and expedited, while at the same time, the cooling efficiency is increased.Type: ApplicationFiled: January 12, 2011Publication date: June 9, 2011Applicant: United Technologies CorporationInventors: Edward F. Pietraszkiewicz, Kevin J. Klinefelter, Atul Kohli, Todd R. Coons
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Patent number: 7883320Abstract: The diffusion opening in the cooling hole of an airfoil is formed by an EDM process in which the outwardly flaring sidewalls of the opening, rather then having surfaces that are approximated to be smooth by having many small ribs formed therein, are formed with relatively few ribs with both longitudinally extending and radially extending surfaces that are substantially greater in dimension than those as normally formed. In this manner, the machining process is simplified and expedited, while at the same time, the cooling efficiency is increased.Type: GrantFiled: January 24, 2005Date of Patent: February 8, 2011Assignee: United Technologies CorporationInventors: Edward F. Pietraszkiewicz, Kevin J. Klinefelter, Atul Kohli, Todd R. Coons