And Removing Damaged Material Patents (Class 29/402.11)
  • Patent number: 10669874
    Abstract: Flow discouragers, flow path assemblies, and methods for assembling flow path assemblies are provided. For example, a discourager for discouraging fluid flow between adjacent first and second components comprises a first contact surface in contact with the first component; a second contact surface in contact with the second component; and a body connecting the first and second contact surfaces that includes a pocket for receipt of a retention member and a plurality of apertures defined therethrough between the first and second contact surfaces. An exemplary flow path assembly comprises adjacent first and second components and a flow discourager that includes first and second contact surfaces in contact with the first and second components, respectively. The first and second contact surfaces each have a three-dimensional geometric shape to maintain contact with the first and second components. Each discourager may be formed from a ceramic matrix composite material.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: June 2, 2020
    Assignee: General Electric Company
    Inventor: Sergio Filippi
  • Patent number: 10518366
    Abstract: A method of restoring a wheel (1) to compliance, the wheel having a plurality of ovalized bores (2). The method is characterized in that it includes at least a step of boring a first ovalized bore (2) with the help of a reamer (3) presenting a longitudinal pilot portion (3a) and a longitudinal cutter portion (3b), the cutter portion (3b) presenting teeth (4) defining a cutting diameter (D2), and the pilot portion (3a) presenting a pilot diameter (D1) strictly less than the cutting diameter (D2), the step of boring this first ovalized bore (2) consisting in inserting the reamer (3) into the first ovalized bore (2), beginning with the pilot portion (3a) and followed by the cutter portion (3b), the pilot diameter (D1) being such that it enables the reamer (3) to be guided in translation inside the first ovalized bore (2) for boring.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: December 31, 2019
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventor: Clement Schoenbock
  • Patent number: 10233780
    Abstract: A method of repairing a casing for a gas turbine engine, wherein the casing has a wall extending generally axially, and between at least one radially extending flange, the radially extending flange being formed with a plurality of bolt holes, includes the steps of removing a portion of the flange including at least one bolt hole. The removed portion is associated with a defect and a remaining portion of the flange includes at least one non-removed bolt hole. A replacement portion is obtained to replace the removed portion. The replacement portion is secured in an opening left in the flange by the removed portion. A repaired gas turbine engine casing is also disclosed.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: March 19, 2019
    Assignee: United Technologies Corporation
    Inventors: Oleg Ivanov, Derek W. Anderson
  • Patent number: 10150188
    Abstract: A method of treating a ceramic matrix composite article, including selecting an article having a ceramic composition formed by a process comprising an initial melt infiltration at an initial temperature with an initial infiltration material, whereby said article has at least one treatable feature. A portion of the ceramic composite is removed from a region abutting the treatable feature to form a treatment region. A treatment material including a reinforcing fiber is positioned in the treatment region and densified by a first melt infiltration with a first infiltration material including silicon. The first melt infiltration is performed at a first temperature lower than the initial infiltration temperature of the initial melt infiltration.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 11, 2018
    Assignee: General Electric Company
    Inventors: Jason Robert Parolini, James Joseph Murray, Matthew Troy Hafner, Canan Uslu Hardwicke
  • Patent number: 9982830
    Abstract: Technical objective is to provide an in-pipe inspection robot for inspecting interior of a pipe, which can exert repulsive force to the pipe when the linear actuator is driven. To this purpose, the in-pipe inspection robot, which is moved inside the pipe to inspect the interior of the pipe, includes a linear actuator which is extendably and contractably driven, and a braking unit configured to fix a rear end of the linear actuator to an inner wall of the pipe and release a front end of the linear actuator from a fixed state, when the linear actuator is being extended, and release the rear end of the linear actuator from the fixed state and fix the front end of the linear actuator to the inner wall of the pipe, when the linear actuator is being contracted.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 29, 2018
    Assignee: Korea Institute of Industrial Technology
    Inventors: O-Hung Kwon, Sang-Won Lee, Dae-Hee Won, Jin Young Kim
  • Patent number: 9636787
    Abstract: Disclosed is a mechanical clamp useful for repairing localized damage in the wall of an enclosure such as a pressure vessel. The mechanical clamp is an apparatus having a cap having a convex side and a concave side wherein the concave side is adapted for positioning adjacent the wall of the enclosure. The apparatus further includes at least one rod attached securely in the cap for passing through at least one hole in the wall of the enclosure wherein each rod has a first end attached securely in the cap and a second end and each rod is threaded along a portion of the rod including the second end. The apparatus further includes a nut for attaching to the second end of each rod for securing the cap in place adjacent to the wall of the enclosure. Methods for applying the mechanical clamp are also disclosed.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 2, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Jaan Taagepera
  • Patent number: 9581035
    Abstract: Embodiments of a method for controllably reducing of the flow area of a turbine nozzle component are provided, as are embodiments of turbine nozzle components having reduced flow areas. In one embodiment, the method includes the steps of obtaining a turbine nozzle component having a plurality of turbine nozzle flow paths therethrough, positioning braze preforms in the plurality of turbine nozzle flow paths and against a surface of the turbine nozzle component, and bonding the braze preforms to the turbine nozzle component to achieve a controlled reduction in the flow area of the turbine nozzle flow paths.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: February 28, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventor: Bill Macelroy
  • Patent number: 9476215
    Abstract: A molding system for a swimming pool coping having a track for receiving a pool liner, the molding system including a molding platform having a flexible panel with a first side and a second side opposite the first side, at least one lip extending from the first side of the flexible panel configured to be received in the track of the swimming pool coping, a plurality of mold supports extending from the second side of the flexible panel and arranged in a row proximate a top of the flexible panel, each mold support having a top surface for supporting a mold block and a flange positioned at a first end of the mold support extending substantially perpendicularly from the top surface.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: October 25, 2016
    Assignee: CONCRETE COUNTERTOP SOULTIONS, INC.
    Inventors: Edwin Joseph Baldoni, Dario Joseph Baldoni
  • Patent number: 9434017
    Abstract: Braze methods include providing a substrate comprising a pre-sintered preform disposed thereon, wherein the pre-sintered preform comprises a mixture comprising a base alloy comprising about 30 weight percent to about 90 weight percent of the mixture and a second alloy comprising a sufficient amount of melting point depressant to have a lower melting temperature than the base alloy. Braze methods further include at least partially covering the pre-sintered preform with a heat resistant material, wherein a melt temperature of the heat resistant material is higher than a melt temperature of the pre-sintered preform, and heating the pre-sintered preform on the substrate.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 6, 2016
    Assignee: General Electric Company
    Inventors: Jacob Andrew Salm, Srikanth Chandrudu Kottilingam, Jonathan Matthew Lomas, Gareth William David Lewis, Cem Murat Eminoglu
  • Patent number: 9021676
    Abstract: A method of preventing a first door on an over-the-road vehicle from moving from a closed position into an open position. The first door has a first latch assembly that cooperates with a second latch assembly to releasably maintain the first door in its closed position. One of the first and second latch assemblies is maintained in place by at least one fastener extended into a first opening. With the at least one fastener loosened, the first locking assembly is placed on one of: a) one of the doors; or b) the vehicle frame after which a fastener is tightened into the first opening to thereby: i) maintain one of the first and second latch assemblies in place and secure the operatively placed first locking assembly. With the first door in the closed position, a locking device can be connected to the first locking assembly and another part on the vehicle to thereby maintain the first door in the closed position.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: May 5, 2015
    Inventor: Robert Joseph Kaminsky, Jr.
  • Patent number: 9021696
    Abstract: The invention relates to a method for producing a plating (5) of a vane tip. Said method consists of the following steps: a) a vane having a vane tip which is arranged opposite the base of the vane (2) and which comprises a surface which points radially outwards is provided, and b) a porous layer (7) is applied to at least the surface (4) of the vane tip and/or c) a bulge (8) which increases the surface of the vane tip is applied to at least one part of the flanks of the vane tip, said flanks surrounding the surface of the vane tip, and d) the plating (5) is applied to the porous layer and/or the bulge. The invention also relates to corresponding vanes or gas turbines with corresponding vanes.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 5, 2015
    Assignee: MTU Aero Engines AG
    Inventors: Andreas Jakimov, Stefan Schneiderbanger, Manuel Hertter
  • Patent number: 8993090
    Abstract: A repair part enables rapid and efficient repair of damaged metal structures, in particular airframe fuselage skins having internal and external faces, without necessitating any additional thickness compromising the transmission of waves. To this end, the repair part includes a double internal/external plate adapted to be fastened to the internal face and the external face of the metal structure, respectively. The repair part also includes a central hub connecting the internal plate and the external plate and forming a groove between the plates. The part is constituted of a single composite material block, and a glass ply, lining the groove, may be positioned between the plates and the structure. The hub may have passing through it at least one orifice adapted to allow connections to pass through the structure.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: March 31, 2015
    Assignee: Airbus Operations (S.A.S.)
    Inventors: Nicolas Boulet, Olivier Chaume, Frédéric Chelin
  • Patent number: 8978249
    Abstract: A method for repairing a gas turbine component includes: identifying on the gas turbine component (10) a worn out location, where the gas turbine component (10) is damaged; removing the damaged location, thereby creating a missing zone (18); manufacturing an insert, which fits into the missing zone (18); putting the insert into the missing zone (18); adjusting the insert in the gas turbine component (10); and joining the adjusted insert to the gas turbine component (10).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 17, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Simone Hövel, Günter Ambrosy, Matthias Höbel
  • Publication number: 20150071788
    Abstract: A modification process and modified article are disclosed. The modification process includes locating an area in an article, removing the area by machining to form a machined region, inserting a modification material into the machined region, securing the modification material to the article, machining the modification material flush with a geometry of the article, and applying a coating over at least a portion of the article. Another modification process includes locating an area under a suction side leading edge tip shroud fillet of an airfoil, removing the area by machining to form a hole, inserting a modification material having improved material properties as compared to an original base material into the hole, securing the modification material in place, machining the modification material and the airfoil to form a new fillet contour, and applying a coating over at least a portion of the airfoil. Also disclosed is the modified article.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Christopher Edward THOMPSON, John David WARD, James Ryan CONNOR, Mark Lawrence HUNT, Blake Allen FULTON
  • Publication number: 20150047168
    Abstract: In a method for repairing a machinery component, one or more defects are detected on the machinery component. At least one portion of the component is removed, wherein the at least one portion includes at least one of the one or more defects. One or more data points are determined for at least one slot, wherein the at least one slot is created by removing the at least one portion of the component. At least one repair coupon is generated from the one or more data points. The at least one repair coupon is attached with the at least one slot.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Inventors: Allister William James, Jan Münzer, Michael Ott
  • Patent number: 8918995
    Abstract: A method of repairing a damaged notch fillet radius of a turbine blade shroud includes a replacement notch fillet radius and a hardface nugget. The damaged notch fillet radius is blended out and a hardface structure positioned proximate the damaged notch fillet radius is removed. A replacement notch fillet radius is formed with weld filler and the hardface nugget is welded to at least a portion of the replacement notch fillet radius.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: December 30, 2014
    Assignee: United Technologies Corporation
    Inventor: Timothy A. Milleville
  • Patent number: 8881394
    Abstract: A device for repairing a casing holder of an aeronautical engine extending radially relative to the engine rotational axis and including a plurality of lips, each having a hole drilled therein and evenly distributed on the circumference of the holder. The device includes at least one reinforcement holder that can be attached to clean lips of the case holder via through-holes or blind-holes, the reinforcement holder having two orthogonal planes of symmetry. The device further includes a reconditioning holder mounted on the reinforcement holder via a first part using attachment means positioned in one of the planes of symmetry of the reinforcement holder.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 11, 2014
    Assignee: SNECMA
    Inventors: Yannis Boletis, Alexandre Stephane Thonnard
  • Patent number: 8857053
    Abstract: A compressor housing defines an inlet bore having a first inlet collar disposed therein. The inlet collar is connected to the housing with a first plurality of radially extending posts. The first plurality of posts is removed to detach the inlet collar from the housing, and the inlet collar is removed from the housing. The same or another inlet collar is concentrically located within a liner. The liner can be located at a radial distance around at least a portion of the inlet collar. The inlet collar is connected to the liner by radially inserting a second plurality of posts through the liner and into the inlet collar. An assembly of the liner containing the inlet collar is inserted into the inlet bore of the housing such that the inlet collar forms the inducer bore of the compressor housing.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: October 14, 2014
    Assignee: Caterpillar Inc.
    Inventors: Jarrod David Moss, Douglas L. Hampton, Trent A. Simpson
  • Patent number: 8826534
    Abstract: A method of repairing a damaged portion of a rotor blade includes filling the damaged portion with a filler material. A pre-cured patch assembly is applied over the damaged portion, the patch assembly including one or more laminate packs positionable at at least one of an upper rotor blade surface and a lower rotor blade surface and one or more overwrap plies positionable over the upper rotor blade surface and the lower blade surface. A repair structure for a damaged portion of a rotor blade includes a volume of fill material disposed at the damaged portion.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 9, 2014
    Assignee: Sikorsky Aircraft Corporation
    Inventors: Marcus D. Cappelli, Wonsub Kim, Joshua Mancher
  • Patent number: 8813333
    Abstract: A method for servicing a stator frame of a power generator includes removing a first stator core from a main housing of the frame. A support assembly including a plurality of rails and a trolley is used to insert second laminations of a second stator core into the main housing. The rails extend axially within a bottom portion of the main housing and provide support for the trolley and for the second laminations as they are being inserted into the main housing. The trolley is provided for axial movement on the rails for inserting the second laminations into the main housing.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: August 26, 2014
    Assignee: Siemens Energy, Inc.
    Inventors: Travis J. Vitello, David T. Allen
  • Patent number: 8813331
    Abstract: A process of preparing a turbine rotor wheel, a repair tool for machining a turbine rotor wheel, and a turbine rotor wheel are disclosed. The process includes providing the turbine rotor wheel, the turbine rotor wheel having a dovetail slot, a cooling slot, and a dovetail acute corner formed by the dovetail slot and the cooling slot and removing a stress region from the dovetail acute corner. The repair tool permits removal of strained material while also reducing the operating stress of the feature. The turbine rotor wheel includes a machined portion resulting in lower stress for the turbine rotor wheel.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 26, 2014
    Assignee: General Electric Company
    Inventor: John H. Dimmick, III
  • Patent number: 8800145
    Abstract: A method of refurbishing a rotor blade utilizing a waterjet and an apparatus therefore.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: August 12, 2014
    Assignee: Sikorsky Aircraft Corporation
    Inventors: Tapas K. Mukherji, Robert J. Araujo
  • Patent number: 8800149
    Abstract: A repair process for a composite material panel that forms part of a fuselage, wings, or stabilizers of an aircraft, with the panel having large dimensions and including irregular contours in some areas and edges prone to damages occurring from handling and assembly of the panel. The process a) locates the damage in the element of the composite material panel; b) sands the area that includes the damage in an area larger than the damage, makes a cut in the panel, having the cut of a same form as a piece that will serve to repair panel; c) places the piece in the cut, so that it is perfectly flush with the panel to be repaired; and d) attaches the piece to the composite material panel.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: August 12, 2014
    Assignee: Airbus Operations S.L.
    Inventors: Alberto Balsa Gonzalez, Francisco de Paula Burgos Gallego
  • Patent number: 8763229
    Abstract: One or more crack inhibitors can be installed to improve fatigue performance by producing stress states that prevent or inhibit crack initiation. Crack inhibitors can also prevent or retard crack growth. A mandrel can be used to radially expand the crack inhibitors to both induce compressive residual stresses and to form an interference fit between the crack inhibitor and a workpiece. The mandrel can be removed from the installed crack inhibitor, which is left in the workpiece to ensure proper stress states are maintained.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 1, 2014
    Assignee: Fatigue Technology, Inc.
    Inventors: Leonard Frederick Reid, Kevin J. Dooley
  • Patent number: 8747592
    Abstract: The present invention relates to a method of repairing a fiber composite solid member having a locally deteriorated surface area, such as having cracks or creases. The solid member may e.g. be a mold for the manufacturing of wind turbine blades or such blades. The method comprises machining a surface section comprising the locally deteriorated surface area in order to obtain a recess having a predefined depth and circumferential shape, placing a repair patch having a predefined thickness and circumferential shape matching the recess in the recess, and fastening the repair patch to the solid member by use of a binder material. At least some of the elastic and thermal properties of the repair patch and the binder material are so that after fastening, the repair patch and the binder material in combination have elastic and thermal properties which are substantially the same as the corresponding properties of the surface section before machining.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: June 10, 2014
    Assignee: Vestas Wind Systems A/S
    Inventors: Knud Nielsen Stenbaek, Alex Olesen, Henning Schröder
  • Patent number: 8746414
    Abstract: The invention relates to a method for replacing the hoisting ropes of an elevator. By the method of the invention, the hoisting ropes (4) are replaced by first joining the old and new hoisting ropes (4a, 4b) together by their one ends by splicing the ends together around a common core strand (17), whereupon the new set (4b) of hoisting ropes is pulled into place by means of the old set (4a) of hoisting ropes.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: June 10, 2014
    Assignee: Kone Corporation
    Inventors: Matti Hynni, Anssi Karppinen, Arto Tuhkio
  • Patent number: 8720057
    Abstract: A method is provided for reconditioning a turbomachine rotor, equipped with circumferentially extending grooves for accommodating blades retained in the grooves at a distance from each other by spacers. The method includes removing the blades and spacers from the grooves and hollowing out the exposed grooves, simultaneously widening the grooves to remove damage-inflicted material. At least one circumferentially extending lateral groove is introduced for accommodating a filler piece in the grooves to fill a gap between blades and hollowed-out rotor grooves. New spacers are provided which are matched to the hollowed-out grooves and have recesses which are matched to the introduced lateral grooves. Filler pieces are provided for inserting into the circumferentially extending lateral grooves and recesses of the new spacers. The blades and new spacers are inserted into the hollowed-out rotor grooves and corresponding filler pieces are inserted into the lateral grooves and matched recesses of the new spacers.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: May 13, 2014
    Assignee: Alstom Technology Ltd
    Inventors: Ulrich Wellenkamp, Luis Federico Puerta, Wolfgang Kappis
  • Publication number: 20140115853
    Abstract: A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: BELL HELICOPTER TEXTRON INC.
    Inventors: Ramesh Thiagarajan, Robert Mark Chris, John R. McCullough, Suvankar Mishra
  • Patent number: 8677625
    Abstract: A process for cutting out a damaged area of an aircraft fuselage, in particular so as to repair the damaged area, includes in making at least one cut-out in the fuselage (20) so as to delimit a cut-out area (24) that encompasses the damaged area and that includes at least one flare-out, characterized in that it includes making a hole (34) at the flare-out of the cut-out area (24) with a tool whose diameter corresponds to that of the desired flare-out.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: March 25, 2014
    Assignee: Airbus Operations S.A.S.
    Inventors: Jacques Roux, Chrystele Gaudin, Pierre-Jean Rohic, Bruno Rosemberg
  • Patent number: 8673095
    Abstract: A system and method for repairing a screen for use in the paper mill industry consists in using a small circular-shaped die or rotary cutter to cut through a multilayer wire. A first, small diameter punch die is used to cut through all of the damaged layers and then, each successive punch die is configured with a larger diameter and a flange that makes it go less deeply so that it cuts all but the bottom most damaged layer. The process is repeated for each layer with increasing diameter punch dies so that each hole is larger in diameter. In doing so, it is easy to reach the bottom most layer from the top, put in a patch and micro weld it and then move up to the next layer and still having room for the welding because of a larger hole still on the layer above it.
    Type: Grant
    Filed: June 17, 2012
    Date of Patent: March 18, 2014
    Inventor: Daniel Dagenais
  • Publication number: 20140064431
    Abstract: It is possible to improve the workability and the stress corrosion resistance by easily performing a repairing operation in a nozzle repairing method and a nuclear reactor vessel. The repairing method includes: removing a first connection portion ((trepanned portion) 208) with respect to an in-core instrument tube (204) in a groove-welding portion (206); removing the in-core instrument tube (204) from a lower mirror (66); leaving and grooving a second connection portion ((existing welding portion) 211) with respect to the lower mirror (66) in the groove-welding portion (206); inserting a new in-core instrument tube (204A) into an attachment hole (203); and groove-welding (so as to form a new groove-welding portion (213)) the inner side of the lower mirror (66) so as to fix the new in-core instrument tube (204A).
    Type: Application
    Filed: March 29, 2013
    Publication date: March 6, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: MITSUBISHI HEAVY INDUSTRIES, LTD.
  • Patent number: 8636107
    Abstract: The present disclosure relates to a method for repairing a portion of an acoustic panel for a nacelle of an aircraft turbojet engine. The panel includes an acoustic skin in which a plurality of acoustic holes are drilled, a solid skin, and a cellular acoustic structure. The cellular acoustic structure, being arranged between the acoustic skin and the solid skin, has a plurality of cells, each of which has one or more drainage openings arranged in one or more of the walls forming each cell. The method includes a step of: defining a part of the acoustic panel to be cut; forming a cutting area closed by the acoustic skin; injecting a resin through the acoustic holes; positioning a replacement cellular acoustic structure in the cutting area and on the acoustic skin; forming a solid replacement skin on the replacement cellular acoustic structure.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: January 28, 2014
    Assignee: Aircelle
    Inventors: John Moutier, Emmanuel Anfray, Franck Maze, Herve Simon
  • Patent number: 8601689
    Abstract: A method of repairing a turbomachine rotor wheel including a first outer circumferential edge extending to a second outer circumferential edge through a circumferential surface, a dovetail interface extending across the outer circumferential surface between the first and second outer circumferential edges, and a bucket mounted to the dovetail interface includes identifying a defect on one of the first and second outer circumferential edges of the rotor wheel adjacent the bucket, securing the bucket in the dovetail interface to substantially constrain axial movement, and removing a portion of the one of the first and second outer circumferential edges to remove the defect.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: December 10, 2013
    Assignee: General Electric Company
    Inventors: Yagnesh Dalpatbhai Hathiwala, Ronald Stuart Denmark, Wilton Andrew Green, Jr., Ashok Kumar Haveri Murigeppa, Srinivas Ravi, Paul Anthony Santos
  • Publication number: 20130247377
    Abstract: A process of repairing a component, a repair tool for a component, and a component are disclosed. The process includes removing material from a region of the component. The removing forms a through-cut in the component, forms a partial-frustoconical geometry in the component, forms a substantially partial-frustoconical geometry in the component, forms a partial-spherical geometry in the component, forms a substantially partial-spherical geometry in the component, forms a partial-elliptical geometry in the component, forms a substantially partial-elliptical geometry in the component, forms a partial-cylindrical geometry in the component, forms a substantially partial-cylindrical geometry in the component, is in a direction substantially perpendicular to a surface of the component, is in a direction substantially inclined with respect to the surface of the component, or a combination thereof. The repair tool includes a securing mechanism and a cutting portion for removing a region.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yagnesh Dalpatbhai HATHIWALA, Howard Gerhard HALVERSON, Somayajula KUMAR, Sabarinath DEVARAJAN, David Christopher BAYER
  • Patent number: 8539659
    Abstract: A method of repairing an article includes removing an undesirable section of the article, attaching a repair section to the article at a location from which the undesirable section has been removed, and mechanically working the repair section to achieve a reduction in a cross-sectional area of the repair section.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: September 24, 2013
    Assignee: United Technologies Corporation
    Inventors: Edward R. Szela, Michael A. Joy, Daniel A. Bales, Bradford A. Cowles, David A. Rutz
  • Publication number: 20130209826
    Abstract: Methods are provided for structurally repairing a component having a damaged internally threaded opening. The damaged internally threaded opening is machined to a predetermined diameter, thereby forming a machined opening. At least one notch is formed in the machined opening, thereby forming a notched opening. A selected amount of repair material is cold sprayed into the notched opening, including into the at least one notch. A plurality of internal threads is formed from the repair material to form a repaired internally threaded opening in the component. The repaired components are also provided.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 15, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Anh-Tuan Ngo, Susan Yip, Calum Macintyre, Bruce Almond, Christopher Lee Cahoon
  • Patent number: 8505180
    Abstract: A method of rebuilding used cores comprising the steps of; cutting a used core substantially down the center at a midway cut thereby creating a left core and a right core. Further installing an extension unit in between the left core and right core, thereby forming a lengthened rebuilt core. Further, cutting the damaged ends off the rebuilt core to a selected finished length. The rebuilt core includes a left core obtained from a donor core; a right core obtained from a donor core; an extension unit sandwiched between the left core and the right core for rigidly joining together the left and right cores by connecting to one end of each of the cores.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 13, 2013
    Inventor: Daniel Kewing
  • Patent number: 8505201
    Abstract: A method of repairing a damaged coated vane from a turbine module without removing the vane from the module is taught. The method includes locally removing the coating in the vicinity of the damage as well as any underlying damage in the superalloy substrate. A diffusible coating precursor is then applied to the damage site. A heat treating fixture is then mounted on the vane and repair site is heated to up to 2000° F. in an inert environment to interdiffuse the coating precursor and the substrate. After the diffusion anneal, the vane is cleaned and the module is returned to service.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: August 13, 2013
    Assignee: United Technologies Corporation
    Inventors: Thomas DeMichael, Richard Gerst, Brian S. Tryon, David A. Rutz, Billie W. Bunting
  • Patent number: 8499447
    Abstract: A method is provided for repairing a cylinder head having corrosion and erosion of the gasket sealing surface around the coolant inlet. The engine is disassembled and the corroded material is machined to a selected depth and width creating a pocket having a bottom wall surface and an annular side wall surface surrounding the coolant inlet port. An annular insert is provided having an annular outer side wall, a top wall, a bottom wall, and a central opening. The insert has a thickness greater than the depth of the machined pocket. An adhesive is applied the insert is pressed into the pocket. After curing of the adhesive, the top wall of the insert is machined to a dimension flush with the sealing surface of the head thereby creating a proper sealing surface for the subsequent seating of a replacement gasket.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: August 6, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Martin S. Kramer, Roger L. Briggs
  • Patent number: 8438713
    Abstract: A pin removal assembly for use with an upper block of a crane includes a sheave support and a pin support. The upper block includes a frame, a plurality of sheaves, and a removable sheave pin that defines and axis of rotation for the sheaves and supports the sheaves within the frame. The pin removal assembly includes a sheave support mountable to the frame of the upper block and a pin support mountable to the frame of the upper block. The pin support is configured to support the sheave pin when the sheave pin is removed from the upper block.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: May 14, 2013
    Assignee: MHE Technologies, Inc.
    Inventor: Steven K. Waisanen
  • Publication number: 20130068318
    Abstract: A method for repairing damaged valve stem assemblies includes enlarging a bore within a body of a valve stem to form an enlarged bore portion and creating a conical hole in an end of the valve stem body around the enlarged bore portion. Internal threads are created within the enlarged bore portion, and a valve stem repair extension is installed in the enlarged bore portion. The valve stem repair extension has a beveled surface that facilitates formation of a hermetic seal between the valve stem body and the valve stem repair extension. The steps of enlarging the bore and creating the conical hole may both be performed using a countersinking drill bit having a beveled cutting portion.
    Type: Application
    Filed: March 2, 2012
    Publication date: March 21, 2013
    Inventors: Roger Kliskey, Rockford Tyson
  • Patent number: 8371009
    Abstract: Methods for repairing composite containment casings involving providing a composite containment casing having an integrated abradable system, the abradable system having at least one damaged portion, and including a sandwich structure, and at least one abradable layer, removing the damaged portion of the abradable system to leave a hole, shaping a sandwich structure segment to produce a shaped sandwich structure, placing the shaped sandwich structure into the hole in the abradable system, infusing a resin into the shaped sandwich structure, and curing the containment casing having the shaped sandwich structure, and applying at least one abradable layer to the shaped sandwich structure to produce the containment casing having a repaired integrated abradable system.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: February 12, 2013
    Assignee: General Electric Company
    Inventors: Ming Xie, Donald George Lachapelle
  • Patent number: 8367960
    Abstract: A method for restoring a worn rail section includes cleaning a worn surface of a rail section to expose a clean metal surface, heating the rail section to a first temperature before welding, welding new metal on the clean metal surface of the rail section after heating the rail section to the first temperature, heating the rail section to a second temperature after the welding to heat-treat a heat-affected area caused by the welding, and shaping the rail section, wherein the welding is performed by a gas metal arc welding (GMAW) process.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: February 5, 2013
    Assignee: CSX Transportation
    Inventor: Rod Keefe
  • Patent number: 8356409
    Abstract: A method for repairing a gas turbine engine component includes applying a braze slurry to a first portion of the component, applying a pre-sintered preform to a second portion of the component that is different than the first portion, and brazing the component.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: January 22, 2013
    Assignee: United Technologies Corporation
    Inventor: Edmundo J. Perret
  • Patent number: 8347504
    Abstract: A method of manufacturing a fuel injector having high-flow orifices in its tip includes removing a bulb from a fuel injector tip having at least one spray orifice with a first diameter, and friction welding a slug to the fuel injector tip, including forming a fused interface of material of the slug and material of the fuel injector tip. The method further includes modifying the slug subsequent to friction welding the slug to the fuel injector tip, including forming a new bulb from the slug having at least one spray orifice therein with a different diameter than that of the removed bulb. A remanufactured fuel injector, and fuel injector tip, includes an injector tip body having a first tip portion of a first material and a second tip portion of a material compatible for friction welding with the first material.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: January 8, 2013
    Inventors: Karen Raab, James D. Sparks, Scott A. Johnston, Sami El-Sayed
  • Patent number: 8343294
    Abstract: An apparatus and method adapted to enhance the structural performance of a desired connection and provide a readily perceivable indication of predetermined limitations having being reached prior to actual failure of a connection. A method for enhancing structural performance of a desired structure by preventing fracture propagation.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: January 1, 2013
    Assignee: The University of Kansas
    Inventors: Ronald M. Barrett, Caroline R. Bennett, Stanley T. Rolfe, Adolfo B. Matamoros
  • Patent number: 8333006
    Abstract: A method for removing a crack in an electromechanical rotor, including: forming a plurality of slots on a periphery of a core portion of an electromechanical rotor along an axial direction thereof; inserting coils into the slots, respectively; forming a plurality of wedges for maintaining the coils in the slots, respectively; and forming a cut hole at at least a part of the core portion from an outer surface of the core portion toward the side of a center axis thereof so as to contain a crack along a circumferential direction thereof.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: December 18, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Matsuyama, Hideki Chiba, Hiromichi Ito, Yomei Yoshioka, Kazuhiro Saito, Yasuo Kabata, Ryoji Nagano, Hiroaki Koinuma, Kaname Hirai, Toshio Kitajima
  • Patent number: 8266800
    Abstract: A method of adding material to a nickel-based superalloy component, such as a gas turbine rotor disk, without damaging the underlying material and without creating an unacceptable level of cracking. The method is advantageously applied in the repair of Alloy 706 turbine rotors having experienced operating failures in the steeple region of the disk. Once the damaged material is removed, replacement nickel-based superalloy material is added using a welding process that protects both the underlying material and the replacement material. The replacement material may be added by welding, with the preheat temperature maintained no lower than 100° C. below the aging temperature of the deposited alloy and with the interpass temperature maintained below the solution annealing temperature of the alloy. Alternatively, the replacement material may be preformed and welded to the original material using a friction welding process.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: September 18, 2012
    Assignee: Siemens Energy, Inc.
    Inventors: David Scott Segletes, Brij B. Seth, Srikanth C. Kottilingam, Peter Jon Ditzel
  • Publication number: 20120198676
    Abstract: A method for repairing or reconditioning a damaged component includes working the damaged component by removing a damaged region from the damaged component while creating a cutout corresponding to the damaged region so as to provide a worked component. The worked component is measured and a computer-aided design (CAD) model of a replacement piece based on the measuring and is configured to be inserted into the cutout of the worked component is created. The replacement piece is produced based on the CAD model.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Lukas Emanuel Rickenbacher, Simone Hoevel, Adriaan Bernardus Spierings, Raphael Schmid, Stefan Buob
  • Patent number: 8234766
    Abstract: A method and a device are provided for reworking or re-machining the surface and, in particular, the slide tracks of a slip ring while the slip ring is in a built-in state in an appliance or machine using the slip ring. The slip ring is rotated by a drive provided in the appliance for rotating the slip ring during normal operation, or by an auxiliary drive, while a surface-removing cutting tool or surface deforming tool held in a tool holder or carrier adapted to be attached to the appliance or machine is applied to the surface of the moving slip ring to re-machine or recondition the surface. The invention avoids the necessity of dismantling the appliance or machine for the purpose of removing the slip ring for repairs.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: August 7, 2012
    Assignee: Schleifring und Apparatebau GmbH
    Inventors: Herbert Staffler, Ronald Suchanecki, Fabian Schuenke, Harry Schilling