Patents by Inventor Mitchell Jay Headley
Mitchell Jay Headley 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: 8177502Abstract: An airfoil assembly is described comprising an airfoil, a band coupled to the airfoil for providing at least a portion of support for the airfoil in the airfoil assembly and a slot capable reducing stress in the airfoil wherein the slot is located in the band near a portion of the airfoil. A compression system is described comprising a stator assembly comprising a plurality of arcuate vane sectors arranged circumferentially around a longitudinal axis, each vane sector comprising an airfoil, an arcuate inner band and an arcuate outer band coupled to the airfoil, and a slot capable of reducing stress in the airfoil, the slot being located in the vane sector near a portion of the airfoil.Type: GrantFiled: November 25, 2008Date of Patent: May 15, 2012Assignee: General Electric CompanyInventors: Mitchell Jay Headley, Stephen Joseph Gruber
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Publication number: 20100126018Abstract: A method of manufacturing an airfoil assembly is described, the method comprising the steps of supplying an airfoil and a band, creating a support aperture in the band capable of receiving a portion of the airfoil, creating a slot in the band for reducing stress in the airfoil, and bonding the airfoil with the band.Type: ApplicationFiled: November 25, 2008Publication date: May 27, 2010Inventors: Mitchell Jay Headley, Stephen Joseph Gruber
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Publication number: 20100129210Abstract: An airfoil assembly is described comprising an airfoil, a band coupled to the airfoil for providing at least a portion of support for the airfoil in the airfoil assembly and a slot capable reducing stress in the airfoil wherein the slot is located in the band near a portion of the airfoil. A compression system is described comprising a stator assembly comprising a plurality of arcuate vane sectors arranged circumferentially around a longitudinal axis, each vane sector comprising an airfoil, an arcuate inner band and an arcuate outer band coupled to the airfoil, and a slot capable of reducing stress in the airfoil, the slot being located in the vane sector near a portion of the airfoil.Type: ApplicationFiled: November 25, 2008Publication date: May 27, 2010Inventors: Mitchell Jay Headley, Stephen Joseph Gruber
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Patent number: 7360990Abstract: A method enables a variable vane assembly for a gas turbine engine including a casing and an inner shroud to be assembled. The method comprises providing at least one variable vane including a radially inner spindle that has a substantially circular cross-sectional shape, and coupling the variable vane radially between the casing and the inner shroud such that the radially inner spindle is rotatably coupled within an opening extending through the inner shroud, wherein the opening has a non-circular cross-sectional profile.Type: GrantFiled: October 13, 2004Date of Patent: April 22, 2008Assignee: General Electric CompanyInventors: Roger Owen Barbe, Mitchell Jay Headley, Scott Howard Pelletier, David N. Rosenow
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Patent number: 7125222Abstract: A method facilitates assembling a variable vane assembly for a gas turbine engine including a casing and an inner shroud. The method comprises providing at least one variable vane including a radially inner spindle that includes a groove defined therein that has at least one machined face, and coupling the variable vane radially between the casing and the inner shroud such that at least a portion of the radially inner spindle is inserted at least partially through an opening extending radially through the inner shroud. The method also comprises securing the variable vane to the inner shroud by engaging the spindle machined face with a retainer coupled to the inner shroud.Type: GrantFiled: April 14, 2004Date of Patent: October 24, 2006Assignee: General Electric CompanyInventors: Nathan Gerard Cormier, Wayne Ray Bowen, James Edwin Rhoda, Mitchell Jay Headley
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Patent number: 6821084Abstract: A bearing assembly for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct. The torque tube connects a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct. The bearing assembly includes a bearing having a spherical external engagement surface and a housing having a flange and an annular interior surface having an inner edge and an outer edge. The interior surface is sized and shaped for rotatably receiving the spherical external engagement surface of the bearing so the spherical engagement surface and the annular interior surface make contact along an annular contact area centered on a contact plane lying between the inner and outer edges. The contact plane is tilted with respect to the flange at an angle greater than five degrees.Type: GrantFiled: December 11, 2002Date of Patent: November 23, 2004Assignee: General Electric CompanyInventors: Julius Bathori, Sang Yeng Park, Mitchell Jay Headley
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Publication number: 20040115040Abstract: A bearing assembly for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct. The torque tube connects a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct. The bearing assembly includes a bearing having a spherical external engagement surface and a housing having a flange and an annular interior surface having an inner edge and an outer edge. The interior surface is sized and shaped for rotatably receiving the spherical external engagement surface of the bearing so the spherical engagement surface and the annular interior surface make contact along an annular contact area centered on a contact plane lying between the inner and outer edges. The contact plane is tilted with respect to the flange at an angle greater than five degrees.Type: ApplicationFiled: December 11, 2002Publication date: June 17, 2004Applicant: General Electric CompanyInventors: Julius Bathori, Sang Yeng Park, Mitchell Jay Headley
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Patent number: 6682299Abstract: A trunnion support for a variable-position stator vane in a turbomachine. The stator vane includes an upper trunnion and a lower trunnion to allow the stator vane to be pivoted about a longitudinal axis. The lower trunnion is supported in a bushing that is carried in an opening provided in an annular stator vane carrier ring. The bushing is longitudinally split and is installed in the carrier ring while in a laterally compressed condition so that when installed in the carrier ring the bushing bears against the carrier ring opening in which it is positioned. When the carrier ring material expands with rising temperature, the pre-stress in the bushing will cause it to expand to maintain tight frictional engagement between the bushing and the opening and thereby prevent relative rotation between the bushing and the carrier ring to minimize wear of the carrier ring material.Type: GrantFiled: November 15, 2001Date of Patent: January 27, 2004Assignee: General Electric CompanyInventors: Wayne Ray Bowen, Jeffrey Clayton Potter, Mitchell Jay Headley
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Publication number: 20030170115Abstract: A trunnion support for a variable-position stator vane in a turbomachine. The stator vane includes an upper trunnion and a lower trunnion to allow the stator vane to be pivoted about a longitudinal axis. The lower trunnion is supported in a bushing that is carried in an opening provided in an annular stator vane carrier ring. The bushing is longitudinally split and is installed in the carrier ring while in a laterally compressed condition so that when installed in the carrier ring the bushing bears against the carrier ring opening in which it is positioned. When the carrier ring material expands with rising temperature, the pre-stress in the bushing will cause it to expand to maintain tight frictional engagement between the bushing and the opening and thereby prevent relative rotation between the bushing and the carrier ring to minimize wear of the carrier ring material.Type: ApplicationFiled: November 15, 2001Publication date: September 11, 2003Inventors: Wayne Ray Bowen, Jeffrey Clayton Potter, Mitchell Jay Headley