Patents by Inventor Douglas Arthur Lupe
Douglas Arthur Lupe 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: 9689268Abstract: A rotor wheel assembly has a rotor wheel including a plurality of dovetail slots. The rotor wheel assembly includes a bucket closure assembly having a leading auxiliary bucket with a dovetail coupled to a dovetail slot and an integral cover having a back side edge oriented at a first angle relative to the rotor wheel rotation axis. The bucket closure assembly includes a closure bucket having a dovetail coupled to a dovetail slot and an integral cover having a front side and a back side edge, where the back side edge is oriented to a second angle and the front side edge is parallel to the back side edge of the leading auxiliary bucket. The bucket closure assembly includes a trailing auxiliary bucket having a dovetail coupled to a dovetail slot and an integral cover having a front side edge parallel to the back side edge of the closure bucket.Type: GrantFiled: December 17, 2013Date of Patent: June 27, 2017Assignee: General Electric CompanyInventors: Robert Edward Deallenbach, Ravichandran Pazhur Nair, Douglas Arthur Lupe
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Patent number: 9624780Abstract: A rotor wheel assembly includes a rotor wheel having a plurality of dovetail slots spaced circumferentially about a peripheral surface of the rotor wheel. The rotor wheel also has a plurality of notches formed in the peripheral surface. The rotor wheel assembly includes at least one bucket having an integral cover, an airfoil, a dovetail, and a platform having a first surface and an opposite second surface. The first surface of the platform includes a keyway. The keyway has an opposing tapered surface oriented at a first angle relative to the first surface of the platform. Furthermore, the rotor wheel assembly includes a wedge key having first face that is oriented substantially parallel to the first surface of the platform and an opposite second face that is oriented at the first angle relative to the first face, such that the second face is substantially parallel to the taper surface.Type: GrantFiled: December 17, 2013Date of Patent: April 18, 2017Assignee: General Electric CompanyInventors: Robert Edward Deallenbach, Ravichandran Pazhur Nair, Douglas Arthur Lupe
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Patent number: 9551398Abstract: One embodiment of the invention includes a system for shifting a torsional mode frequency of a rotary device, the system comprising: a plurality of mass rings, each of the plurality of mass rings comprising: a pair of radially-segmented half rings; and at least one channel through each of the radially-segmented half rings, the at least one channel oriented substantially perpendicular to the radial segmentation of the mass ring, whereby the plurality of mass rings may be aligned and secured through the at least one channel of each radially-segmented half ring such that the radial segmentation of each mass ring is staggered with respect to the radial segmentation of an adjacent mass ring.Type: GrantFiled: March 15, 2013Date of Patent: January 24, 2017Assignee: General Electric CompanyInventors: Mehmet Muhittin Dede, Robert Edward Deallenbach, Douglas Arthur Lupe
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Patent number: 9366313Abstract: Engaging inclined surfaces of an inner ring and an outer ring create wedge action inducing an inward radial force as the rings are forced together longitudinally, holding the adjustor on a rotating body. An inner total arcuate length of each ring is smaller than an outer total arcuate length of a respective target body (inner ring for outer ring, rotating body for inner ring). Arcuate segments of each ring can have inner surfaces with radii of curvature equal to or smaller than that of the target body outer surface, and with a total arcuate length smaller than the circumference of the target body's outer surface.Type: GrantFiled: March 15, 2013Date of Patent: June 14, 2016Assignee: General Electric CompanyInventors: Douglas Arthur Lupe, William Edward Adis, Robert Edward Deallenbach, Mehmet Muhittin Dede, Andrzej Korabik, Noah Matthew Rothe
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Publication number: 20160010721Abstract: Engaging inclined surfaces of an inner ring and an outer ring create wedge action inducing an inward radial force as the rings are forced together longitudinally, holding the adjustor on a rotating body. An inner total arcuate length of each ring is smaller than an outer total arcuate length of a respective target body (inner ring for outer ring, rotating body for inner ring). Arcuate segments of each ring can have inner surfaces with radii of curvature equal to or smaller than that of the target body outer surface, and with a total arcuate length smaller than the circumference of the target body's outer surface.Type: ApplicationFiled: March 15, 2013Publication date: January 14, 2016Inventors: Douglas Arthur Lupe, William Edward Adis, Robert Edward Deallenbach, Mehmet Muhittin Dede, Andrzej Korabik, Noah Matthew Rothe
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Publication number: 20150167469Abstract: A rotor wheel assembly has a rotor wheel including a plurality of dovetail slots. The rotor wheel assembly includes a bucket closure assembly having a leading auxiliary bucket with a dovetail coupled to a dovetail slot and an integral cover having a back side edge oriented at a first angle relative to the rotor wheel rotation axis. The bucket closure assembly includes a closure bucket having a dovetail coupled to a dovetail slot and an integral cover having a front side and a back side edge, where the back side edge is oriented to a second angle and the front side edge is parallel to the back side edge of the leading auxiliary bucket. The bucket closure assembly includes a trailing auxiliary bucket having a dovetail coupled to a dovetail slot and an integral cover having a front side edge parallel to the back side edge of the closure bucket.Type: ApplicationFiled: December 17, 2013Publication date: June 18, 2015Applicant: General Electric CompanyInventors: Robert Edward Deallenbach, Ravichandran Pazhur Nair, Douglas Arthur Lupe
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Publication number: 20150167471Abstract: A rotor wheel assembly includes a rotor wheel having a plurality of dovetail slots spaced circumferentially about a peripheral surface of the rotor wheel. The rotor wheel also has a plurality of notches formed in the peripheral surface. The rotor wheel assembly includes at least one bucket having an integral cover, an airfoil, a dovetail, and a platform having a first surface and an opposite second surface. The first surface of the platform includes a keyway. The keyway has an opposing tapered surface oriented at a first angle relative to the first surface of the platform. Furthermore, the rotor wheel assembly includes a wedge key having first face that is oriented substantially parallel to the first surface of the platform and an opposite second face that is oriented at the first angle relative to the first face, such that the second face is substantially parallel to the taper surface.Type: ApplicationFiled: December 17, 2013Publication date: June 18, 2015Applicant: General Electric CompanyInventors: Robert Edward Deallenbach, Ravichandran Pazhur Nair, Douglas Arthur Lupe
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Publication number: 20140260781Abstract: Embodiments of the invention relate generally to rotary devices and, more particularly, to systems, devices, and methods for shifting a torsional mode frequency of a rotary device. In one embodiment, the invention provides a system for shifting a torsional mode frequency of a rotary device, the system comprising: a plurality of mass rings, each of the plurality of mass rings comprising: a pair of radially-segmented half rings; and at least one channel through each of the radially-segmented half rings, the at least one channel oriented substantially perpendicular to the radial segmentation of the mass ring, whereby the plurality of mass rings may be aligned and secured through the at least one channel of each radially-segmented half ring such that the radial segmentation of each mass ring is staggered with respect to the radial segmentation of an adjacent mass ring.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Mehmet Muhittin Dede, Robert Edward Deallenbach, Douglas Arthur Lupe
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Patent number: 6478540Abstract: A turbine bucket includes an airfoil extending from a platform, having high and low pressure sides; a wheel mounting portion; a hollow shank portion located radially between the platform and the wheel mounting portion, the platform having an under surface. An impingement cooling plate is located in the hollow shank portion, spaced from the under surface, and the impingement plate is formed with a plurality of impingement cooling holes therein.Type: GrantFiled: December 19, 2000Date of Patent: November 12, 2002Assignee: General Electric CompanyInventors: Nesim Abuaf, Kevin Joseph Barb, Sanjay Chopra, David Max Kercher, Iain Robertson Kellock, Dean Thomas Lenahan, Sankar Nellian, John Howard Starkweather, Douglas Arthur Lupe
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Patent number: 6428270Abstract: In a multi-stage turbine wherein at least one turbine wheel supports a row of buckets for rotation, and wherein the turbine wheel is located axially between first and second annular fixed arrays of nozzles, a cooling air circuit for purging a wheelspace between the turbine wheel and the second fixed annular array of nozzles comprising a flowpath through a shank portion of one or more buckets connecting a wheelspace between the turbine wheel and the first fixed annular array of nozzles with the wheelspace between the turbine wheel and the second fixed annular array of nozzles.Type: GrantFiled: September 15, 2000Date of Patent: August 6, 2002Assignee: General Electric CompanyInventors: Sal Albert Leone, Sacheverel Quentin Eldrid, Douglas Arthur Lupe
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Publication number: 20020076324Abstract: A turbine bucket includes an airfoil extending from a platform, having high and low pressure sides; a wheel mounting portion; a hollow shank portion located radially between the platform and the wheel mounting portion, the platform having an under surface. An impingement cooling plate is located in the hollow shank portion, spaced from the under surface, and the impingement plate is formed with a plurality of impingement cooling holes therein.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Nesim Abuaf, Kevin Joseph Barb, Sanjay Chopra, David Max Kercher, Iain Robertson Kellock, Dean Thomas Lenahan, Sankar Nellian, John Howard Starkweather, Douglas Arthur Lupe