Patents by Inventor Christopher C. Glynn

Christopher C. Glynn 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).

  • Publication number: 20080018054
    Abstract: A seal body includes an annular, axially extending portion; a radially extending portion defining a primary seating surface, and cooperating with the axially extending portion to define a generally L-shaped cross section; and at least one annular axially-extending seal tooth.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 24, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: William L. Herron, Joseph C. Albers, Christopher C. Glynn, Peter Crudgington
  • Patent number: 6676369
    Abstract: A gas turbine engine aspirating face seal includes a rotatable engine member and a non-rotatable engine member and a leakage path therebetween. Annular generally planar rotatable and non-rotatable gas bearing face surfaces circumscribed about a centerline are operably associated the rotatable and non-rotatable engine members respectively. Radially inner and outer tooth rings axially extend away from a first one of the rotatable and non-rotatable gas bearing face surfaces across the leakage path and towards a second one of the gas bearing face surfaces. A pull off biasing means is used for urging the inner and outer tooth rings axially away from the second one of the gas bearing face surfaces. The rotatable engine member may be a side plate mounted on a rotor disk and the non-rotatable engine member is mounted on a translatable piston axially movably supported on a stationary face seal support structure.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: January 13, 2004
    Assignee: General Electric Company
    Inventors: John C. Brauer, Christopher C. Glynn, Robert J. Albers
  • Publication number: 20030185669
    Abstract: A gas turbine engine aspirating face seal includes a rotatable engine member and a non-rotatable engine member and a leakage path therebetween. Annular generally planar rotatable and non-rotatable gas bearing face surfaces circumscribed about a centerline are operably associated the rotatable and non-rotatable engine members respectively. Radially inner and outer tooth rings axially extend away from a first one of the rotatable and non-rotatable gas bearing face surfaces across the leakage path and towards a second one of the gas bearing face surfaces. A pull off biasing means is used for urging the inner and outer tooth rings axially away from the second one of the gas bearing face surfaces. The rotatable engine member may be a side plate mounted on a rotor disk and the non-rotatable engine member is mounted on a translatable piston axially movably supported on a stationary face seal support structure.
    Type: Application
    Filed: March 26, 2002
    Publication date: October 2, 2003
    Inventors: John C. Brauer, Christopher C. Glynn, Robert J. Albers
  • Patent number: 6398500
    Abstract: A retention system and method for the blades of a rotary machine for preventing forward or aft axial movement of the rotor blades includes a circumferential hub slot formed about a circumference of the machine hub. The rotor blades have machined therein a blade retention slot which is aligned with the circumferential hub slot when the blades are received in correspondingly shaped openings in the hub. At least one ring segment is secured in the blade retention slots and the circumferential hub slot to retain the blades from axial movement. A key assembly is used to secure the ring segments in the aligned slots via a hook portion receiving the ring segments and a threaded portion that is driven radially outwardly by a nut. A cap may be provided to provide a redundant back-up load path for the centrifugal loads on the key. Alternatively, the key assembly may be formed in the blade dovetail.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: June 4, 2002
    Assignee: General Electric Company
    Inventors: Poul D. Pedersen, Christopher C. Glynn, Roger C. Walker
  • Patent number: 6357237
    Abstract: A fuel injection assembly for a gas turbine engine combustor, including at least one fuel stem, a plurality of concentrically disposed tubes positioned within each fuel stem, wherein a cooling supply flow passage, a cooling return flow passage, and a tip fuel flow passage are defined thereby, and at least one fuel tip assembly connected to each fuel stem so as to be in flow communication with the flow passages, wherein an active cooling circuit for each fuel stem and fuel tip assembly is maintained by providing all active fuel through the cooling supply flow passage and the cooling return flow passage during each stage of combustor operation. The fuel flowing through the active cooling circuit is then collected so that a predetermined portion thereof is provided to the tip fuel flow passage for injection by the fuel tip assembly.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: March 19, 2002
    Assignee: General Electric Company
    Inventors: Anthony J. Candy, Christopher C. Glynn, John E. Barrett
  • Publication number: 20020004010
    Abstract: A retention system and method for the blades of a rotary machine for preventing forward or aft axial movement of the rotor blades includes a circumferential hub slot formed about a circumference of the machine hub. The rotor blades have machined therein a blade retention slot which is aligned with the circumferential hub slot when the blades are received in correspondingly shaped openings in the hub. At least one ring segment is secured in the blade retention slots and the circumferential hub slot to retain the blades from axial movement. A key assembly is used to secure the ring segments in the aligned slots via a hook portion receiving the ring segments and a threaded portion that is driven radially outwardly by a nut. A cap may be provided to provide a redundant back-up load path for the centrifugal loads on the key. Alternatively, the key assembly may be formed in the blade dovetail.
    Type: Application
    Filed: May 24, 2001
    Publication date: January 10, 2002
    Applicant: General Electric Company
    Inventors: Poul D. Pedersen, Christopher C. Glynn, Roger C. Walker
  • Patent number: 6240719
    Abstract: A support structure for a gas turbine engine includes a support arm (214, 216) extending between a low pressure shaft (202) and a rotor. The support arm includes a fuse (220) having a low failure point. A high pressure stub shaft (270) axially and radially supports the low pressure shaft (202) after fuse failure. An axial gap (A) between a portion of the low pressure shaft and the stub shaft permits movement of the low pressure shaft after fuse failure. A radial gap (B) between the stub shaft (270) and the low pressure shaft (202) allows radial deflection of the low pressure rotor system after fuse failure.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: June 5, 2001
    Assignee: General Electric Company
    Inventors: Randy M. Vondrell, Wu-Yang Tseng, Christopher C. Glynn
  • Patent number: 6206638
    Abstract: A gas turbine engine airfoil includes an airfoil outer wall having widthwise spaced apart pressure and suction sidewall sections extending chordally between leading and trailing edges of the airfoil and extending longitudinally from a base to a tip. Inside the airfoil is at least one internal cooling circuit having a plurality of longitudinally extending circuit channels between longitudinally extending internal ribs extending widthwise between the pressure and suction sidewall sections and a longitudinally extending first sidewall film cooling chamber positioned between one of the sidewall sections and a first inner wall bounding the cooling circuit. Sidewall film cooling holes extend through the pressure sidewall section from the first sidewall film cooling chamber.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: March 27, 2001
    Assignee: General Electric Company
    Inventors: Christopher C. Glynn, Paul S. Wilson, James A. Martus, Clay K. Carlson
  • Patent number: 5971706
    Abstract: An inter-rotor bearing assembly includes a first annular member having a circumferential inner surface and a second annular member having a circumferential outer surface. The outer surface is concentric to and disposed radially inward of the inner surface and a bearing is disposed between the surfaces. The bearing has an outer race fixedly attached to the first annular member along the inner surface, an inner race fixedly attached to the second annular member along the outer surface, and rolling elements disposed between the races. A low density high circumferential strength support ring is fixedly attached to the first annular member disposed concentrically outside of the inner race and is preferably made of a titanium matrix composite. The rolling elements may be cylindrical rollers having cylindrical rolling surfaces. The support ring may be fixedly attached around or integral with the first annular member.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: October 26, 1999
    Assignee: General Electric Company
    Inventors: David G. Glista, David W. Crall, Christopher C. Glynn
  • Patent number: 5725355
    Abstract: A fan blade includes a spar having first and second opposite sides. The spar sides include a fatigue-life enhanced surface layer, with the spar first side having a cavity bounded in part by the surface layer. A skin closes the cavity and is bonded to the spar for maintaining the enhanced surface layer inside the cavity.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: March 10, 1998
    Assignee: General Electric Company
    Inventors: David W. Crall, Christopher C. Glynn, Bruce C. Busbey, Jack W. Baldwin, Ian F. Prentice
  • Patent number: 5713721
    Abstract: One form of a retention system includes a pair of aft segments of 180.degree. in length disposed in annular grooves about a compressor spool, the segments having radial projections against which the aft end faces of the base portions of rotor blades abut. The blade base portions are shaped and are received in complementary-shaped slots of the spool. The forward retention system includes a plurality of arcuate segments approximately 30.degree. in length disposed in grooves adjacent the forward end faces of the blades. With the exception of the final pair of blades, the blade base portions thereof are located in the axial complementary slots in pairs, with each forward arcuate segment, except the final segment, being disposed in the groove at a circumferentially spaced location and displaced circumferentially to abut the forward end faces. The final arcuate segment is radially reduced and disposed in the remaining portion of the groove to lie flush with the spool.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: February 3, 1998
    Assignee: General Electric Co.
    Inventors: Christopher C. Glynn, Poul D. Pedersen, Frederick M. Miller, Roger C. Walker, Sang Yeng Park, Clifford C. May
  • Patent number: 5568931
    Abstract: There is provided by the present invention a brush seal including apparatus for reducing bristle vibrations, such as a damper, that engages the upstream side of the bristle pack of the brush seal so as to absorb vibrations and therefore reduce chamfering of the bristle pack.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: October 29, 1996
    Assignee: General Electric Company
    Inventors: Wu-Yang Tseng, Brent L. Bristol, Rolf R. Hetico, Christopher C. Glynn
  • Patent number: 5486086
    Abstract: A blade containment system is disclosed which includes an annular casing positioned radially outward of the blades and in surrounding relationship therewith, the annular casing including a plurality of ribs on the outer radial surface thereof, wherein the ribs limit the propagation of cracks and holes formed in the annular casing.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: January 23, 1996
    Assignee: General Electric Company
    Inventors: Donald L. Bellia, Christopher C. Glynn, Brian J. Humke
  • Patent number: 5431532
    Abstract: A blade containment system is disclosed which includes an annular casing positioned radially outward of the blades and in surrounding relationship therewith, the annular casing including a plurality of composite tapes bonded to the outer or inner radial surfaces thereof, wherein the composite tapes limit the propagation of cracks and holes formed in the annular casing.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: July 11, 1995
    Assignee: General Electric Company
    Inventors: Brian J. Humke, Robert P. Czachor, Donald L. Bellia, Eric E. Baehre, Christopher C. Glynn
  • Patent number: 5357744
    Abstract: A turbine flowpath assembly includes a plurality of circumferentially spaced apart airfoils disposed within an annular outer casing. Each of the airfoils includes outer and inner integral bands. A plurality of flowpath outer and inner panels are disposed between adjacent ones of the bands and circumferentially overlap the bands. The panels and bands are joined together at the respective overlaps for allowing circumferential movement therebetween while providing sealing.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: October 25, 1994
    Assignee: General Electric Company
    Inventors: Robert P. Czachor, Christopher C. Glynn
  • Patent number: 5335920
    Abstract: A brush seal is provided having a plurality of bristle layers sandwiched between a pair of circumferential plates with the upstream layers of bristles having a higher first fundamental vibration frequency than downstream seal layers. Such a seal has bristles in the upstream layer or layers that have a greater cross sectional area, a lesser lay angle, are shorter, or some combination of the foregoing.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: August 9, 1994
    Assignee: General Electric Company
    Inventors: Wu-Yang Tseng, Brent L. Bristol, Rolf R. Hetico, Christopher C. Glynn
  • Patent number: 5333993
    Abstract: A stator seal assembly for a gas turbine engine of a type having a high pressure compressor section and a high pressure turbine section, the stator seal having a seal segment extending between a stator vane support structure and disk seal teeth, the stator seal segment having an arm for forming a cavity, a retaining segment attached to the seal segment and the arm for sealing the cavity to form a dead air space, a control ring located in the cavity having a coefficient of thermal expansion lower than a coefficient of thermal expansion for the seal segment, and a honeycomb pad located between the arm and the seal teeth, whereby thermal expansion clearance between the stator vane and the rotor disk is minimized.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: August 2, 1994
    Assignee: General Electric Company
    Inventors: Henry B. Stueber, Eric E. Baehre, Richard W. Albrecht, Christopher C. Glynn, Robert J. Hemmelgarn
  • Patent number: 5320486
    Abstract: In a gas turbine engine, a system for maintaining uniform circumferential spacing between adjacent segments of a compressor liner, the liner segments being retained within an outer casing by a flanged connection. The system includes a T-shaped pin retained within the flanged connection radially and circumferentially by engagement with a slot formed in the outer casing, and axially by engagement with a notch formed in the adjacent liner segment, such that the liner segment overlaps the positioning pin. In a preferred embodiment, each liner segment is notched and held in place by a pin which, in turn, is retained within a slot in the compressor casing.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: June 14, 1994
    Assignee: General Electric Company
    Inventors: Roger C. Walker, Christopher C. Glynn
  • Patent number: 5320487
    Abstract: The present invention discloses a spring clip made of a directionally solidified nickel-base superalloy for use in a high pressure compressor stator sub-assembly of a gas turbine engine. The spring clip includes a body section and a pair of arms integrally connected to opposing sides of the body section and the spring clip is used as a means for attaching circumferentially segmented flowpath liners to an annular casing. Each arm of the spring clips exerts a spring force against a flowpath liner mount lug causing the mount lug to be seated radially against an inner surface of the casing and axially against an annular seal, wherein the pair of arms of each spring clip engage mount lugs located on circumferentially adjacent ones of the flowpath liners.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: June 14, 1994
    Assignee: General Electric Company
    Inventors: Roger C. Walker, Christopher C. Glynn, Robert E. Allen
  • Patent number: 5320484
    Abstract: A turboshaft engine in which the stator comprises an outer casing surrounding a ring formed by a number of ring elements each having an apertured rib which spaces the element from the casing, the ribs dividing the space between the casing and the ring into separate compartments, and each rib having a sealing element disposed alongside it to cover the apertures and seal one compartment from the next. The casing and the ring are fixed together by virtue of bolts which have their axes inclined to the radial direction so that tightening the bolts causes the casing to press radially on the sealing elements at the same time as pressing them axially against the respective ribs.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: June 14, 1994
    Assignee: General Electric Company
    Inventors: Jean-Louis Charbonnel, Pierre Debeneix, Christopher C. Glynn, Daniel J. Marey, Jean-Pierre A. J. Mourlan, Jacky S. Naudet, Gerard Receveur, Yann J. M. Rigaud, Roger C. Walker