Patents by Inventor Martel Alexander McCallum
Martel Alexander McCallum 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: 8777566Abstract: A casing includes an inner shell and an outer shell that surrounds the inner shell and comprises a plurality of inflection points. An annular flange is between the inner shell and the outer shell, and a plurality of joints attach the inner shell to the annular flange. A connector is between the annular flange and the outer shell at each of the plurality of inflection points. A method for assembling a casing includes joining a plurality of curved sections to one another to generally define an arcuate inner shell and surrounding the arcuate inner shell with an outer shell. The method further includes attaching the arcuate inner shell to an annular flange at first attachment points and connecting the annular flange to the outer shell at second attachment points spaced approximately equidistantly from the first attachment points.Type: GrantFiled: September 19, 2011Date of Patent: July 15, 2014Assignee: General Electric CompanyInventors: Stephen Christopher Chieco, Henry Grady Ballard, Ian David Wilson, Martel Alexander McCallum, Kenneth Damon Black, Christopher Paul Cox
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Patent number: 8651809Abstract: A casing includes an inner shell and an outer shell that surrounds the inner shell and comprises a plurality of inflection points. An annular flange is between the inner shell and the outer shell, and a plurality of joints attach the inner shell to the annular flange. A connector is between the annular flange and the outer shell at each of the plurality of inflection points. A method for assembling a casing includes joining a plurality of curved sections to one another to generally define an arcuate inner shell and surrounding the arcuate inner shell with an outer shell. The method further includes attaching the arcuate inner shell to an annular flange at first attachment points and connecting the annular flange to the outer shell at second attachment points spaced approximately equidistantly from the first attachment points.Type: GrantFiled: October 13, 2010Date of Patent: February 18, 2014Assignee: General Electric CompanyInventors: Henry Grady Ballard, Jr., Ian David Wilson, Martel Alexander McCallum, Stephen Christopher Chieco, Kenneth Damon Black, Christopher Paul Cox
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Patent number: 8388314Abstract: A compressor inlet casing comprising an inner bellmouth and a bearing housing. The bearing housing may include an integrally cast first half connected to the inner bellmouth and a cavity positioned between the inner bellmouth and the integrally cast first half of the bearing housing.Type: GrantFiled: April 21, 2011Date of Patent: March 5, 2013Assignee: General Electric CompanyInventor: Martel Alexander McCallum
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Publication number: 20120269612Abstract: The present application provides a compressor inlet casing. The compressor inlet casing may include an inner bellmouth and a bearing housing. The bearing housing may include an integrally cast first half connected to the inner bellmouth and a cavity positioned between the inner bellmouth and the integrally cast first half of the bearing housing.Type: ApplicationFiled: April 21, 2011Publication date: October 25, 2012Applicant: GENERAL ELECTRIC COMPANYInventor: Martel Alexander McCallum
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Patent number: 8177483Abstract: A gas turbine with an active clearance control system includes a plurality of actuators circumferentially spaced between an inner shroud and an outer casing. The actuators are configured to eccentrically displace the shroud relative to the outer casing. A plurality of sensors circumferentially spaced around the shroud detect a parameter that is indicative of an eccentricity between the rotor and shroud as the rotor rotates within the shroud. A control system in communication with the sensors and actuators is configured to control the actuators to eccentrically displace the shroud to compensate for eccentricities detected between the rotor and shroud.Type: GrantFiled: May 22, 2009Date of Patent: May 15, 2012Assignee: General Electric CompanyInventor: Martel Alexander McCallum
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Publication number: 20120093639Abstract: A casing includes an inner shell and an outer shell that surrounds the inner shell and comprises a plurality of inflection points. An annular flange is between the inner shell and the outer shell, and a plurality of joints attach the inner shell to the annular flange. A connector is between the annular flange and the outer shell at each of the plurality of inflection points. A method for assembling a casing includes joining a plurality of curved sections to one another to generally define an arcuate inner shell and surrounding the arcuate inner shell with an outer shell. The method further includes attaching the arcuate inner shell to an annular flange at first attachment points and connecting the annular flange to the outer shell at second attachment points spaced approximately equidistantly from the first attachment points.Type: ApplicationFiled: October 13, 2010Publication date: April 19, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Henry Grady Ballard, JR., Ian David Wilson, Martel Alexander McCallum, Stephen Christopher Chieco, Kenneth Damon Black, Christopher Paul Cox
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Publication number: 20100296912Abstract: A rotating machine, such as a gas turbine, includes an active rotor alignment clearance control system wherein a plurality of actuators are circumferentially spaced around at least one rotor shaft bearing. The actuators are configured to eccentrically displace the bearing, and thus the rotor shaft, relative to stationary outer casing structure. A plurality of sensors are circumferentially spaced around a component of the casing structure, such as an inner shroud, and measure a parameter indicative of an eccentricity, such as blade tip clearance between the rotor blades and the structure, as the rotor rotates within the structure. A control system in communication with the sensors and actuators is configured to control the actuators to eccentrically displace the rotor by moving the shaft bearing to compensate for eccentricities detected between the rotor and casing structure.Type: ApplicationFiled: May 22, 2009Publication date: November 25, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Martel Alexander McCallum, Parvangada Ganapathy Bojappa, David August Snider
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Publication number: 20100296911Abstract: A gas turbine with an active clearance control system includes a plurality of actuators circumferentially spaced between an inner shroud and an outer casing. The actuators are configured to eccentrically displace the shroud relative to the outer casing. A plurality of sensors circumferentially spaced around the shroud detect a parameter that is indicative of an eccentricity between the rotor and shroud as the rotor rotates within the shroud. A control system in communication with the sensors and actuators is configured to control the actuators to eccentrically displace the shroud to compensate for eccentricities detected between the rotor and shroud.Type: ApplicationFiled: May 22, 2009Publication date: November 25, 2010Applicant: GENERAL ELECTRIC COMPANYInventor: Martel Alexander McCallum
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Patent number: 7090462Abstract: A compressor bleed air manifold includes annular outer flanges on opposite sides of the generally annular manifold plenum. The outer and inner flange geometries may be circumferentially tailored to produce optimal case stiffness and thermal response for blade-to-case clearances. The inner flanges are secured to one another by an inner bolt circle radially adjacent the flow path thereby improving the case stiffness, out of roundness and eliminating unsupported sections of the flowpath along an outer diameter thereof. The flanges of the outer bolt circle seal the plenum. The compressor bleed air manifold and the compressor casing load path are thereby isolated from one another.Type: GrantFiled: August 18, 2004Date of Patent: August 15, 2006Assignee: General Electric CompanyInventors: Nicholas Francis Martin, Gregory Allan Crum, Martel Alexander McCallum
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Patent number: 6691019Abstract: A method for controlling distortion of a turbine case (“case”) includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index (“index”) resulting from the thermal stresses, and comparing the index with at least one distortion limit to determine whether the case has a satisfactory or an unsatisfactory index. The temperature distribution is controlled for an unsatisfactory index to produce the satisfactory index. A system for controlling distortion of the turbine case includes a thermal measurement system, for measuring the temperature distribution, and a computer configured for modeling the thermal stresses, calculating and comparing the index with the distortion limit, and controlling the temperature distribution for an unsatisfactory index to produce the satisfactory index.Type: GrantFiled: December 21, 2001Date of Patent: February 10, 2004Assignee: General Electric CompanyInventors: Charles Erklin Seeley, Ramanath Iyer Ramakrishnan, James Patrick Claeys, Martel Alexander McCallum, Anthony Constantine Thermos, Hsin-Pang Wang, Weiping Wang
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Publication number: 20030120415Abstract: A method for controlling distortion of a turbine case (“case”) includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index (“index”) resulting from the thermal stresses, and comparing the index with at least one distortion limit to determine whether the case has a satisfactory or an unsatisfactory index. The temperature distribution is controlled for an unsatisfactory index to produce the satisfactory index. A system for controlling distortion of the turbine case includes a thermal measurement system, for measuring the temperature distribution, and a computer configured for modeling the thermal stresses, calculating and comparing the index with the distortion limit, and controlling the temperature distribution for an unsatisfactory index to produce the satisfactory index.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Applicant: General Electric Company CRDInventors: Charles Erklin Seeley, Ramanath Iyer Ramakrishnan, James Patrick Claeys, Martel Alexander McCallum, Anthony Constantine Thermos, Hsin-Pang Wang, Weiping Wang