Patents by Inventor Bernard D. Vaillette
Bernard D. Vaillette 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: 8181346Abstract: A system for forming a labyrinth seal on a turbine blade has a fixture with a plurality of nozzles for distributing a coolant, a first jaw set for clamping and holding a root portion of the turbine blade in a first orientation, which first jaw set is attached to the fixture and has two members for mating with said root portion of said turbine blade, each of the jaw set members respectively have ridges; and a plurality of grinding wheels for forming the labyrinth seal.Type: GrantFiled: February 9, 2007Date of Patent: May 22, 2012Assignee: United Technologies CorporationInventors: Krzysztof Barnat, Bernard D. Vaillette
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Patent number: 7761992Abstract: A process for machining axial blade slots in turbine disks used in jet engines is provided. The process broadly includes the steps of providing a turbine disk, forming a roughened slot having a plurality of joined rectangular areas in the turbine disk, and machining the roughened slot to a finished slot.Type: GrantFiled: July 26, 2004Date of Patent: July 27, 2010Assignee: United Technologies CorporationInventors: Allan B. Packman, Bernard D. Vaillette
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Patent number: 7582004Abstract: A coolant nozzle is used in a machine tool having a rotating bit. The nozzle includes a through-aperture for accommodating the bit. The nozzle has a coolant inlet and a number of coolant outlets at more than one angular position about the through-aperture. Internal surface portions define one or more passageways between the inlet and the outlets.Type: GrantFiled: July 11, 2003Date of Patent: September 1, 2009Assignee: United Technologies CorporationInventors: Brian J. Schwartz, Robert N. Davie, Jr., Bernard D. Vaillette, Jon C. Hammett, Allan B. Packman, Timothy L. Brown, James D. Campbell, Jr.
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Publication number: 20090094831Abstract: An integrally bladed rotor includes a central hub and a plurality of airfoils or blades. The blades are repaired by rebuilding their surfaces beyond the original shape, such as by adding weld material. The contour of the blade is then returned to the desired shape using superabrasive quills.Type: ApplicationFiled: October 16, 2007Publication date: April 16, 2009Inventors: Brian J. Schwartz, Robert E. Erickson, Paul R. Faughnan, JR., Bernard D. Vaillette
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Publication number: 20080189945Abstract: A process for machining a labyrinth seal for a turbine blade is provided. The process comprises the steps of providing a turbine blade blank having a portion to be cut to form the labyrinth seal, positioning the blank in a first set of jaws, performing a plurality of cuts to form the labyrinth seal, removing the machined blank with the labyrinth seal from the first set of jaws, placing the machined blank into a second set of jaws, and performing a final cut to grind a bottom surface of the labyrinth seal.Type: ApplicationFiled: February 9, 2007Publication date: August 14, 2008Inventors: Krzysztof Barnat, Bernard D. Vaillette
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Patent number: 7264538Abstract: A method of removing at least a part of a thermal sprayed wear resistant coating on a gas turbine engine part includes grinding the thermal sprayed wear resistant coating with a superabrasive grinding wheel.Type: GrantFiled: August 12, 2005Date of Patent: September 4, 2007Assignee: United Technologies CorporationInventors: Paul L. Hood, Kyle Gordon Gardiner, Brian Keyes, Keith Lockyer, Edward Marchitto, Thomas Robert Nadeau, Daniel W. St. Onge, Bernard D. Vaillette
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Patent number: 7101263Abstract: The present invention relates to a quill to be used to superabrasively machine complex shapes, such as airfoil shapes, into a substrate. The quill has a shaft portion, an enlarged head portion adjacent the shaft portion, and a tapered grinding portion adjacent the enlarged head portion. The tapered grinding portion has a layer of grit material selected from the group consisting of diamonds and cubic boron nitride thereon. In a preferred embodiment, the quill is a vitrified or plated cubic boron nitride quill on the grinding portion. A method of using the tool is also disclosed.Type: GrantFiled: November 6, 2002Date of Patent: September 5, 2006Assignee: United Technologies CorporationInventors: Brian J. Schwartz, Bernard D. Vaillette, Chung Y. Wu, Gennaro J. Colacino, Allan B. Packman
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Patent number: 6883234Abstract: A process for machining axial blade slots in turbine disks used in jet engines is provided. The process broadly includes the steps of providing a turbine disk, forming a roughened slot having a plurality of joined rectangular areas in the turbine disk, and machining the roughened slot to a finished slot.Type: GrantFiled: October 7, 2002Date of Patent: April 26, 2005Assignee: United Technologies CorporationInventors: Allan B. Packman, Bernard D. Vaillette
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Publication number: 20040087256Abstract: The present invention relates to a quill to be used to superabrasively machine complex shapes, such as airfoil shapes, into a substrate. The quill has a shaft portion, an enlarged head portion adjacent the shaft portion, and a tapered grinding portion adjacent the enlarged head portion. The tapered grinding portion has a layer of grit material selected from the group consisting of diamonds and cubic boron nitride thereon. In a preferred embodiment, the quill is a vitrified or plated cubic boron nitride quill on the grinding portion. A method of using the tool is also disclosed.Type: ApplicationFiled: November 6, 2002Publication date: May 6, 2004Inventors: Brian J. Schwartz, Bernard D. Vaillette, Chung Y. Wu, Gennaro J. Colacino, Allan B. Packman
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Publication number: 20040064944Abstract: The present invention is directed to a process for machining axial blade slots in turbine disks used in jet engines. The process broadly comprises the steps of providing a turbine disk, forming a roughened slot having a plurality of joined rectangular areas in the turbine disk, and machining the roughened slot to a finished slot.Type: ApplicationFiled: October 7, 2002Publication date: April 8, 2004Inventors: Allan B. Packman, Bernard D. Vaillette
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Patent number: 5044125Abstract: A grinding machine is shown as including a machine base, a wheel supported by the base and carrying a rotatable superabrasive grinding wheel, a device for relatively feeding the grinding wheel and a workpiece at a feed rate along a normal force vector between the two, and an apparatus for controlling the grinding processes. The apparatus further preferably includes a force transducer mounted adjacent the wheelhead to measure the magnitude of the normal force factor occurring between the wheel and the workpiece, as well as a control device for varying the feed rate and for determining the relative wheel sharpness based upon the feed rate and the measured normal forces. The feed rate can thereby be varied in response to the determined wheel sharpness to maintain a substantially constant normal force and to optimize the grinding process.Type: GrantFiled: March 8, 1990Date of Patent: September 3, 1991Assignee: Cincinnati Milacron-Heald Corp.Inventors: Edward L. Lambert, Jr., Charles B. Matson, Bernard D. Vaillette
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Patent number: 5042206Abstract: A grinding machine is shown as including a machine base, a wheel supported by the base and carrying a rotatable superabrasive grinding wheel, a device for relatively feeding the grinding wheel and a workpiece at a feed rate along a normal force vector between the two, and an apparatus for controlling the grinding processes. The apparatus further preferably includes a force transducer mounted adjacent the wheelhead to measure the magnitude of the normal force factor occurring between the wheel and the workpiece, as well as a control device for varying the feed rate and for determining the relative wheel sharpness based upon the feed rate and the measured normal forces. The feed rate can thereby be varied in response to the determined wheel sharpness to maintain a substantially constant normal force and to optimize the grinding process.Type: GrantFiled: August 29, 1989Date of Patent: August 27, 1991Assignee: Cincinnati Milacron-Heald Corp.Inventors: Edward L. Lambert, Jr., Charles B. Matson, Bernard D. Vaillette
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Patent number: 5025594Abstract: A grinding machine is shown as including a machine base, a wheel supported by the base and carrying a rotatable superabrasive grinding wheel, a device for relatively feeding the grinding wheel and a workpiece at a feed rate along a normal force vector between the two, and an apparatus for controlling the grinding processes. The apparatus further preferably includes a force transducer mounted adjacent the wheelhead to measure the magnitude of the normal force factor occurring between the wheel and the workpiece, as well as a control device for varying the feed rate and for determining the relative wheel sharpness based upon the feed rate and the measured normal forces. The feed rate can thereby be varied in response to the determined wheel sharpness to maintain a substantially constant normal force and to optimize the grinding process.Type: GrantFiled: March 8, 1990Date of Patent: June 25, 1991Assignee: Cincinnati Milacron-Heald Corp.Inventors: Edward L. Lambert, Jr., Charles B. Matson, Bernard D. Vaillette
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Patent number: 3965765Abstract: A pulley whose outer surface is in the form of three tapered portions selected for use with a flat belt.Type: GrantFiled: March 17, 1975Date of Patent: June 29, 1976Assignee: Cincinnati Milacron-Heald CorporationInventors: Bernard D. Vaillette, William E. Zastawny
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Patent number: 3945694Abstract: A toolhead having a spindle mounted in axially spaced bearings wherein one of the bearings is allowed to slide axially during dynamic effects on the bearings or thermal expansion and contraction of the spindle, the axial movement being made possible by the provision of rows of barrel-shaped rollers.Type: GrantFiled: November 4, 1974Date of Patent: March 23, 1976Assignee: Cincinnati Milacron-Heald CorporationInventor: Bernard D. Vaillette