Patents by Inventor Michael E. Friedman
Michael E. Friedman 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: 10627208Abstract: A system and method for testing rotor stack assemblies having a plurality of rotor disks is disclosed. A measurement system for measuring at least one electrical characteristic of the plurality of rotor disks is used with a computer electronically connected to the measurement system for capturing data from the measurement system. Software associated with the computer transforms the data into output used to determine flange joint contact topography in the plurality of rotor disks.Type: GrantFiled: May 5, 2017Date of Patent: April 21, 2020Assignee: General Electric CompanyInventors: Michael E. Friedman, Jonathan Tilley, Brian Patrick Senkiw, Bryan Williams, Andrew Joseph Colletti
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Publication number: 20180321025Abstract: A system and method for testing rotor stack assemblies having a plurality of rotor disks is disclosed. A measurement system for measuring at least one electrical characteristic of the plurality of rotor disks is used with a computer electronically connected to the measurement system for capturing data from the measurement system. Software associated with the computer transforms the data into output used to determine flange joint contact topography in the plurality of rotor disks.Type: ApplicationFiled: May 5, 2017Publication date: November 8, 2018Inventors: Michael E. Friedman, Jonathan Tilley, Brian Patrick Senkiw, Bryan Williams, Andrew Joseph Colletti
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Patent number: 8439626Abstract: A method of decreasing the operational stresses acting on a target airfoil row in a turbine engine; wherein the target airfoil row is bordered on each side by a first upstream airfoil row and a first downstream airfoil row; the first upstream airfoil row and the first downstream airfoil row having substantially the same number of similar airfoils and both comprising one of a row of rotor blades and a row of stator blades, and the target airfoil row comprising the other; the method comprising the step of: configuring the circumferential position of the airfoils of the first upstream airfoil row and the airfoils of first downstream airfoil row such that at least a portion of the airfoils of the first upstream airfoil row and at least a portion of the airfoils of the first downstream airfoil row comprise a clocking relationship of between 25% and 75% pitch.Type: GrantFiled: December 29, 2008Date of Patent: May 14, 2013Assignee: General Electric CompanyInventors: Wei Ning, Michael E. Friedman, John F. Ryman
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Patent number: 8297919Abstract: An assembly of airfoils in a turbine engine, the assembly comprising: at least three successive axially stacked rows of airfoils in one of a compressor and a turbine: a first airfoil row, a second airfoil row, and a third airfoil row; wherein the first airfoil row and the third airfoil row each comprise one of a row of rotor blades and a row of stator blades, and the second airfoil row comprises the other; and wherein at least a majority of the mid-channel points of the airfoils in the third airfoil row are positioned circumferentially within +/?25% pitch of the third airfoil row with respect to the location at which a wake flow during a selected operating condition from the first airfoil row is determined to enter the third airfoil row.Type: GrantFiled: October 31, 2008Date of Patent: October 30, 2012Assignee: General Electric CompanyInventors: Wei Ning, Michael E. Friedman, John F. Ryman
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Patent number: 8142161Abstract: A rotating assembly. The rotating assembly may include a wheel, a slot positioned about the wheel with the slot having a staking recess positioned therein, a wheel attachment positioned within the slot, and a staking insert positioned within the staking recess. The staking recess axially retains the staking insert and the wheel attachment radially retains the staking insert.Type: GrantFiled: September 20, 2007Date of Patent: March 27, 2012Assignee: General Electric CompanyInventors: Stephen Robert Prince, Stephen Paul Wassynger, Thomas R. Tipton, Tushar S. Desai, Michael E. Friedman, Christopher Robert Kelly, James Purdue Masso, Paul L. Kalmar
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Patent number: 8061995Abstract: An axial retention system for restraining axial movement of a first machine component having a dovetail within a complimentary-shaped dovetail slot in a second machine component that includes a first curved groove formed in a bottom surface of the dovetail slot and a second curved groove formed in a bottom surface of the dovetail. The first and second grooves are in alignment when the dovetail is located within the dovetail slot to thereby form a closed periphery aperture. A curved locking clip is received within the closed periphery aperture. An optional cover plate may be placed over the ends of the locking clip, with ends of the locking clip deformed by, for example, swaging.Type: GrantFiled: January 10, 2008Date of Patent: November 22, 2011Assignee: General Electric CompanyInventors: Stephen R. Prince, Thomas R. Tipton, Michael E. Friedman, Mark Newton, Dale R. Lombardo
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Publication number: 20100284814Abstract: An axial retention system for restraining axial movement of a first machine component having a dovetail within a complimentary-shaped dovetail slot in a second machine component that includes a first curved groove formed in a bottom surface of the dovetail slot and a second curved groove formed in a bottom surface of the dovetail. The first and second grooves are in alignment when the dovetail is located within the dovetail slot to thereby form a closed periphery aperture. A curved locking clip is received within the closed periphery aperture. An optional cover plate may be placed over the ends of the locking clip, with ends of the locking clip deformed by, for example, swaging.Type: ApplicationFiled: January 10, 2008Publication date: November 11, 2010Applicant: General Electric CompanyInventors: Stephen R. Prince, Thomas R. Tipton, Michael E. Friedman, Mark Newton, Dale R. Lombardo
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Publication number: 20100166538Abstract: A method of decreasing the operational stresses acting on a target airfoil row in a turbine engine; wherein the target airfoil row is bordered on each side by a first upstream airfoil row and a first downstream airfoil row; the first upstream airfoil row and the first downstream airfoil row having substantially the same number of similar airfoils and both comprising one of a row of rotor blades and a row of stator blades, and the target airfoil row comprising the other; the method comprising the step of: configuring the circumferential position of the airfoils of the first upstream airfoil row and the airfoils of first downstream airfoil row such that at least a portion of the airfoils of the first upstream airfoil row and at least a portion of the airfoils of the first downstream airfoil row comprise a clocking relationship of between 25% and 75% pitch.Type: ApplicationFiled: December 29, 2008Publication date: July 1, 2010Inventors: Wei Ning, Michael E. Friedman, John F. Ryman
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Publication number: 20100111684Abstract: An assembly of airfoils in a turbine engine, the assembly comprising: at least three successive axially stacked rows of airfoils in one of a compressor and a turbine: a first airfoil row, a second airfoil row, and a third airfoil row; wherein the first airfoil row and the third airfoil row each comprise one of a row of rotor blades and a row of stator blades, and the second airfoil row comprises the other; and wherein at least a majority of the mid-channel points of the airfoils in the third airfoil row are positioned circumferentially within +/?25% pitch of the third airfoil row with respect to the location at which a wake flow during a selected operating condition from the first airfoil row is determined to enter the third airfoil row.Type: ApplicationFiled: October 31, 2008Publication date: May 6, 2010Inventors: Wei Ning, Michael E. Friedman, John F. Ryman
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Publication number: 20100054929Abstract: An assembly of airfoils in a compressor of a turbine engine that includes at least three axially stacked rows of airfoils: a middle airfoil row, a first upstream airfoil row, and a first downstream airfoil row. The middle airfoil row may be bordered on each side by the first upstream airfoil row, which comprises the first row of airfoils in the upstream direction from the middle airfoil row, and the first downstream airfoil row, which comprises the first row of airfoils in the downstream direction from the middle airfoil row. The first upstream airfoil row and the first downstream airfoil row may have substantially the same number of similarly shaped airfoils. The first upstream airfoil row and the first downstream airfoil row each may comprise a row of rotor blades, which rotate at substantially the same speed during operation. The middle airfoil row may comprise a row of stator blades, which remains substantially stationary during operation.Type: ApplicationFiled: September 4, 2008Publication date: March 4, 2010Inventors: Wei Ning, Michael E. Friedman, John F. Ryman
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Publication number: 20100054922Abstract: A method of operating a turbine engine, wherein the turbine engine includes at least three successive axially stacked rows of airfoils in one of a compressor and a turbine: a first airfoil row, a second airfoil row, and a third airfoil row. The first airfoil row and the third airfoil row both may comprise one of a row of rotor blades and a row of stator blades, and the second airfoil row comprises the other. The method includes: configuring the airfoils of the first airfoil row and the airfoils of third airfoil row such that at least a portion of the airfoils of the first airfoil row and at least a portion of the airfoils of the third airfoil row comprise a clocking relationship of between 25% and 75% pitch.Type: ApplicationFiled: September 4, 2008Publication date: March 4, 2010Inventors: Wei Ning, Michael E. Friedman, John F. Ryman
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Publication number: 20090077795Abstract: A rotating assembly. The rotating assembly may include a wheel, a slot positioned about the wheel with the slot having a staking recess positioned therein, a wheel attachment positioned within the slot, and a staking insert positioned within the staking recess. The staking recess axially retains the staking insert and the wheel attachment radially retains the staking insert.Type: ApplicationFiled: September 20, 2007Publication date: March 26, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Stephen Robert Prince, Stephen Paul Wassynger, Thomas R. Tipton, Tushar S. Desai, Michael E. Friedman, Christopher Robert Kelly, James Purdue Masso, Paul L. Kalmar
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Patent number: 4324204Abstract: A safety restraint for securing a dog to the seat of an automotive vehicle includes a one-piece harness having opposing tabs secured to each other by releasable adhesive strips at the chest and beneath the shoulders and flanks of the animal, and permitting freedom of movement but providing a shock distributing shell about the body length of the animal. A pair of rings coupled to the side of the harness in the region of the shoulder and flank of the animal are releaseably coupled to clips mounted on a pair of belts secured about the back of the seat. The clips are individually slidable in upward and downward directions along the lengths of the belts by separate straps which receive the clips and extend along portions of the length of the belts. This permits the animal to stand, sit or lie on the seat while at the same time limiting sideward or forward motion of the animal in the event of a sudden stop or collision.Type: GrantFiled: August 18, 1980Date of Patent: April 13, 1982Inventor: Michael E. Friedman