Patents by Inventor David G. Parker
David G. Parker 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).
-
Patent number: 11339668Abstract: A system and method for cooling a turbine blade tip shroud is provided. The turbine blade comprises a blade attachment, a platform extending radially outward from the attachment, an airfoil extending radially outward from the platform, and a tip shroud extending radially outward from the airfoil. The tip shroud has one or more knife edges extending radially outward from an outer surface of the tip shroud. One or more cooling passages extend through the airfoil and to the tip shroud. The turbine blade also includes one or more tip plates secured at or near the outer surface of the tip shroud thereby forming a plenum between the outer surface and the one or more tip plates. The one or more tip plates also include a plurality of cooling holes for flowing cooling air through the plenum to cool the tip shroud.Type: GrantFiled: October 29, 2018Date of Patent: May 24, 2022Assignee: Chromalloy Gas Turbine LLCInventors: James Page Strohl, Mariano Medrano, David G. Parker
-
Patent number: 10837298Abstract: A turbine nozzle having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, and within an envelope of approximately +/?0.049 inches, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form the airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.Type: GrantFiled: August 21, 2018Date of Patent: November 17, 2020Assignee: Chromalloy Gas Turbine LLCInventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Mariano Medrano, Jr., Charles A. Ellis
-
Patent number: 10711615Abstract: A turbine blade having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form an airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.Type: GrantFiled: August 21, 2018Date of Patent: July 14, 2020Assignee: Chromalloy Gas Turbine LLCInventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Wesley Smith, David Medrano, Charles A. Ellis
-
Publication number: 20200131913Abstract: A system and method for cooling a turbine blade tip shroud is provided. The turbine blade comprises a blade attachment, a platform extending radially outward from the attachment, an airfoil extending radially outward from the platform, and a tip shroud extending radially outward from the airfoil. The tip shroud has one or more knife edges extending radially outward from an outer surface of the tip shroud. One or more cooling passages extend through the airfoil and to the tip shroud. The turbine blade also includes one or more tip plates secured at or near the outer surface of the tip shroud thereby forming a plenum between the outer surface and the one or more tip plates. The one or more tip plates also include a plurality of cooling holes for flowing cooling air through the plenum to cool the tip shroud.Type: ApplicationFiled: October 29, 2018Publication date: April 30, 2020Inventors: JAMES PAGE STROHL, MARIANO MEDRANO, DAVID G. PARKER
-
Patent number: 10590782Abstract: A turbine nozzle having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, and within an envelope of approximately ?0.067 to +0.101 inches, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form the airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.Type: GrantFiled: August 21, 2018Date of Patent: March 17, 2020Assignee: CHROMALLOY GAS TURBINE LLCInventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Paul Gregory Herber, Daniel Folkers
-
Patent number: 10590772Abstract: A turbine blade having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form an airfoil shape. The X, Y, and Z distances may be scaled as a function of the same constant number and the X, Y, and Z distances lie within an envelope of approximately +/?0.032 inches in directions normal to the airfoil.Type: GrantFiled: August 21, 2018Date of Patent: March 17, 2020Assignee: CHROMALLOY GAS TURBINE LLCInventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Paul Gregory Herber, James Page Strohl
-
Publication number: 20200063570Abstract: A turbine blade having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form an airfoil shape. The X, Y, and Z distances may be scaled as a function of the same constant number and the X, Y, and Z distances lie within an envelope of approximately +/?0.032 inches in directions normal to the airfoil.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Inventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Paul Gregory Herber, James Page Strohl
-
Publication number: 20200063579Abstract: A turbine nozzle having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, and within an envelope of approximately +/?0.049 inches, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form the airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Inventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Mariano Medrano, JR., Charles A. Ellis
-
Publication number: 20200063580Abstract: A turbine nozzle having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, and within an envelope of approximately ?0.067 to +0.101 inches, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form the airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Inventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Paul Gregory Herber, Daniel Folkers
-
Publication number: 20200063565Abstract: A turbine blade having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form an airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Inventors: David G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Wesley Smith, David Medrano, Charles A. Ellis
-
Publication number: 20100168013Abstract: Methods and compositions for treating psychiatric diseases and disorders are disclosed. The methods provided generally involve the administration of an NMX peptide, an FNX peptide, or an NMX receptor agonist, or analogs or derivatives thereof, to a subject in order to treat psychiatric diseases and disorders, and conditions associated with psychiatric diseases and disorders.Type: ApplicationFiled: February 4, 2008Publication date: July 1, 2010Applicant: Amylin Pharmaceuticals, Inc.Inventors: Kevin D. Laugero, Michael R. Hanley, David G. Parkers, Paul Mcgonigle
-
Patent number: 7530222Abstract: A hydraulic assembly and method for use with an vehicle engine exhaust flow control valve for controlling flow to at least one intake supply. The assembly has an actuator, such as a spring return piston cylinder, for positioning the control valve. An inlet passage, communicating with the cylinder, is arranged for supplying hydraulic fluid to a side of the actuator and a drain is arranged for draining the hydraulic fluid from the side of the actuator. An on-off type hydraulic valve, communicating with the drain, is operably coupled to the cylinder for controlling communication of the hydraulic fluid from the cylinder side to the drain. When the hydraulic assembly is in use, the pressure of hydraulic fluid acting on the actuator is adjustable by operation of the on-off type valve thereby to control movement of the actuator and, in turn, movement of the control valve.Type: GrantFiled: February 23, 2006Date of Patent: May 12, 2009Assignee: Honeywell International, Inc.Inventors: David G. Parker, Alfred J. Babineau, Michael J. Burkett
-
Patent number: 7284954Abstract: A shroud for surrounding a portion of a turbine flow path having improved cooling and durability is disclosed. The shroud includes a plurality of generally axial cooling holes spaced a substantially equal distance apart and a plurality of generally circumferential cooling holes oriented generally perpendicular to the generally axial cooling holes. The generally circumferentially cooling holes are spaced a non-uniform distance apart so as to provide cooling to selected portions of shroud sidewalls to lower shroud operating temperatures and improve shroud durability.Type: GrantFiled: February 17, 2005Date of Patent: October 23, 2007Inventors: David G. Parker, Robert P. Moore, Charles Ellis
-
Patent number: 6932577Abstract: A turbine blade including an airfoil having a profile in accordance with Table 1 is disclosed. The turbine blade has a plurality of cooling passages extending radially outward through the airfoil. The aerodynamic profile of the airfoil has been reconfigured to reduce airfoil stress for a given operating temperature, thereby resulting in increased creep rupture life of the airfoil.Type: GrantFiled: November 21, 2003Date of Patent: August 23, 2005Assignee: Power Systems Mfg., LLCInventors: J. Page Strohl, David G. Parker, Michael Barrett
-
Patent number: 6854703Abstract: There is provided an electromagnetic actuator which includes a coil disposed about a tube bearing a movable armature, the coil being electrically connectable to a circuit configured to provide a current to the coil to generate a magnetic field and magnetic flux in at least one direction. The movable armature is magnetically coupleable with the coil. A flux adjustment element is also provide and is configured for movement within a magnetic flux output by the coil so as to increase a magnetic flux input to the armature upon movement of the flux adjustment element in a first direction and to decrease a magnetic flux input to the armature upon movement of the flux adjustment element in a second direction, wherein the flux adjustment element is externally disposed about a distal end of the tube.Type: GrantFiled: September 6, 2002Date of Patent: February 15, 2005Assignee: Honeywell International Inc.Inventors: David G. Parker, Alfred J. Babineau, Jr.
-
Patent number: 6769878Abstract: A turbine blade including an airfoil having a profile in accordance with Table 1 is disclosed. The turbine blade has a plurality of cooling passages extending radially outward through the airfoil. The aerodynamic profile of the airfoil has been reconfigured to further reduce overall heat load to the airfoil while paying particular attention to the leading edge region. Specifically, the airfoil leading edge, which is the life-limiting location of the turbine blade has been reconfigured to lower heat load and allow for increased cooling, thereby increasing turbine blade life.Type: GrantFiled: May 9, 2003Date of Patent: August 3, 2004Assignee: Power Systems Mfg. LLCInventors: David G. Parker, Jeffrey S. Taylor, Christopher Johnston, J. Page Strohl
-
Publication number: 20030137378Abstract: There is provided an electromagnetic actuator which includes a coil disposed about a tube bearing a movable armature, the coil being electrically connectable to a circuit configured to provide a current to the coil to generate a magnetic field and magnetic flux in at least one direction. The movable armature is magnetically coupleable with the coil. A flux adjustment element is also provide and is configured for movement within a magnetic flux output by the coil so as to increase a magnetic flux input to the armature upon movement of the flux adjustment element in a first direction and to decrease a magnetic flux input to the armature upon movement of the flux adjustment element in a second direction, wherein the flux adjustment element is externally disposed about a distal end of the tube.Type: ApplicationFiled: September 6, 2002Publication date: July 24, 2003Inventors: David G. Parker, Alfred J. Babineau
-
Patent number: 5690596Abstract: An upper body exercise apparatus which is effective for developing a variety of muscle groups of the upper body. In a preferred embodiment, the apparatus comprises two V-shaped members which are pivotally attached at a central joint. One end of each member forms a grip for a user's hand. The opposite ends of the members form heads to which a desired number of force-resisting elements, either of the same or different types, are removably secured.Type: GrantFiled: March 15, 1996Date of Patent: November 25, 1997Inventor: David G. Parker
-
Patent number: 5260685Abstract: A vehicle turn signal mechanism includes a lockout device in the form of an electric timer. The flashing signal is normally cancelled by a steering wheel sensor that is arranged to generate a triggering signal for an electromagnetic detent associated with a signal selector lever. The lockout device prevents the triggering signal from being generated except after the steering wheel has been retained in its straight-ahead position for a predetermined time period.Type: GrantFiled: March 20, 1992Date of Patent: November 9, 1993Assignee: Federal-Mogul CorporationInventor: David G. Parker
-
Patent number: 5239044Abstract: A polyarylsulphone is prepared by the polycondensation of a bisphenol with an aryl dichloride, at least one of which contains a sulphone group, in the presence of a base and introducing into the reaction mixture less than 5% mole, relative to the aryl dichloride, of 4,4'-difluorodiphenylsulphone. The bisphenol and aryldichloride can be of 4,4'-dihydroxydiphenylsulphone and 4,4'-dichlorodiphenylsulphone respectively. The difluoro compound is added when the polymerisation is essentially complete. The polymer product if of improved quality.Type: GrantFiled: October 13, 1992Date of Patent: August 24, 1993Assignee: Imperial Chemical Industries, PLCInventors: Richard R. Cooper, David G. Parker