Patents Represented by Attorney Edward L. Kochey, Jr.

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  • Reformer seal plate arrangement
    Patent number: 4921680
    Abstract: A stepped support and seal plate (44) is sealed to firing tube (18) with an axially compressed seal (62). It carries sleeves (24) and is sealed thereto by gasket seals (55). A diagonal movement seal (69) seals plate (44) to the wall of pressure vessel (10). Bellows (76) has a straight portion (77) at the hot end. Insulation (14) is tapered to provide variations in heat transfer from the bellows to provide a uniform strain pattern in the bellows.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: May 1, 1990
    Assignee: International Fuel Cells Corporation
    Inventors: Stanley P. Bonk, George F. Morganthaler, Yoshiharu Miura
  • Combustor segmented deflector
    Patent number: 4914918
    Abstract: A deflector assembly (20) includes an annular plate portion (28) with pairs of parallel substantially radial slots (30). Truncated pie shaped segments (34) are secured (32, 36) to the plate with cooling air (40, 52) directed between the segments and the plate. Extended cooling surface (48) increases the cooling effect of the airflow. The segments are free from thermal fight and direct the discharged cooling air to help cool the remaining exposed bulkhead surface or shield.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: April 10, 1990
    Assignee: United Technologies Corporation
    Inventor: Dennis J. Sullivan
  • Thermal insulation blanket
    Patent number: 4915998
    Abstract: The thermal insulation blanket can be used to reduce heat loss from a device both in an ambient air environment, and in the vacuum environment of space. The blanket includes a plurality of goldized film layers with interleaved ceramic fiberglass cloth layers, which provide insulation against radiated heat loss in the space environment. Adjacent to the goldized layer is a felt or foam mat which provides insulation against conduction or convection heat loss in the ambient environment. The film and mat components are enclosed in a PTFE-coated fiber glass cloth envelope.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: April 10, 1990
    Assignee: International Fuel Cells Corporation
    Inventors: Edmund K. Parenti, Jr., George T. Suljak
  • Turbine balance arrangement with integral air passage
    Patent number: 4898514
    Abstract: A gas turbine rotor includes a disk (50) with axial dovetail slots (64) and air cooled blades (52) having mating, but shortened dovetails (66). The axial flow path (68) so formed is blocked at the far end and is in fluid communication with the blade cooling passages. Balance weights (70) fit within the openings in a manner which does not interfere with the cooling airflow.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: February 6, 1990
    Assignee: United Technologies Corporation
    Inventor: James R. McCracken
  • Aircraft engine interface fairing support
    Patent number: 4892254
    Abstract: An actuator positioning convergent/divergent nozzle flaps is supported from a stiffner on a support structure. An interface fairing for separating possible hot gas flow from engine fumes is supported from the support structure at a location which avoids fairing deflecting as a function of stiffner deflection. Interference between the fairing and nozzle flap drive is thereby avoided.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: January 9, 1990
    Assignee: United Technologies Corporation
    Inventors: Raymond P. Schneider, Ronald C. DuPont, Michael J. Dickman
  • Bolt retention apparatus
    Patent number: 4887949
    Abstract: A retention clip cooperates with a bolt and a flange through which the bolt passes to retain the bolt during blind assembly. Opening 28 in flange 26 receives bolt 24. Retention clip 40 is retained with extension 50 in recess 34 by engagement of the clip with the bolt. The clip in turn retains bolt 24 by engaging head 22 with arms 52. Surface 32 is adjacent to flat 60 resisting rotation of the bolt.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: December 19, 1989
    Assignee: United Technologies Corporation
    Inventors: John H. Dimmick, III, Stephen W. Jorgensen
  • Hot gas duct liner
    Patent number: 4887663
    Abstract: Overlapping liner plates 12, 14, 16 are secured at the upstream end to support surface 22. Cooling air 26 supplied through compartmental plenums 24 passes between (54) the plates and over (56) the plate surface. Complementary elongated depressions 40, 46 selectively guide the airflow and provide flexibility to absorb transverse expansions.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: December 19, 1989
    Assignee: United Technologies Corporation
    Inventors: Thomas A. Auxier, James B. Rannie, Robert E. Field
  • Method of balancing rotors
    Patent number: 4879792
    Abstract: Given limitations on potential locations, weight sizes and amount of weights all possible applied unbalance magnitudes and angles are calculated after determining the initial unbalance magnitude and angle of the rotor this result is vector summed with all possible applied unbalances. The lowest resultant magnitude is determined, independent of the angle. The corresponding weight combination produces the lowest possible residual unbalance within the constraints.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: November 14, 1989
    Assignee: UnitedTechnologies Corporation
    Inventor: Gerald J. O'Connor
  • Ingot knock out and grind machine
    Patent number: 4879846
    Abstract: A vertically adjustable support frame (10) with chain clamps (12) supports a mold (14) containing an ingot (16) in alignment with a ram cylinder (18). Rolls (34) receive the ingot and transfer it to rolling rolls (38). A belt grinder (46) traverses the length of the rotating ingot to grind the circumference.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: November 14, 1989
    Assignee: United Technologies Corporation
    Inventors: Alan W. Menard, Clifford B. Turner
  • Fuel cell air pressurization system and method
    Patent number: 4879189
    Abstract: Pressurization air systems in a multimodule fuel cell power plant are interconnected to provide improved power plant operating efficiency at part load. Each power generation module air pressurization subsystem has its own turbocompressor to provide a compressed air supply to its own power generation subsystem at rated power plant load. When load demand on the power plant is reduced, some of the turbocompressors in the interconnected power generation modules in the plant are shut off. The interconnecting valves are opened so that the remaining turbocompressors can supply all of the compressed air needed by all of the power generation subsystems in the interconnected power generation modules.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: November 7, 1989
    Assignee: International Fuel Cells Corporation
    Inventor: Daniel J. Snopkowski
  • Axial compressor blade assembly
    Patent number: 4878811
    Abstract: Blade platforms (26) for compressor blades with airfoils (22) in high solidity relationship have edges of a major portion (44) a minor portion (46), and a canted intermediate portion (48). Minimum clearance (54) exists between the major portions (44) whereby twisting during stackup or operation is avoided. A circumferential seal (60, 64) is located under the platform coincident with major portion (44).
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: November 7, 1989
    Assignee: United Technologies Corporation
    Inventor: Stephen W. Jorgensen
  • Variable pitch IC bond pad arrangement
    Patent number: 4875138
    Abstract: The bond pads (22) for a ceramic package (10) are deposited on the pre-fired ceramic at variable pitch with the bond pad widths (47) increasing as a function of the distance (49) of each pad from an alignment point (40), whereby bond pads at the extremity (36) of the package have the largest pad width and pads toward the alignment point (40) of the package have the narrowest width.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: October 17, 1989
    Assignee: United Technologies Corporation
    Inventor: Michael D. Cusack
  • Manifold for distributing wire coating enamel
    Patent number: 4869199
    Abstract: A manifold bar for supplying enamel to a die bar is disclosed. A manifold bar has internal passages which provide a flow path from an enamel supply to the feed holes of a die bar. A method for directing a flow of enamel from an enamel supply to a die bar is also disclosed.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: September 26, 1989
    Assignee: Essex Group, Inc.
    Inventor: Mohammad F. Zaman
  • Bolted connection for a turbine disk
    Patent number: 4869632
    Abstract: Tie bolt 10 has a reduced shank 34 and a tapered head 50. A split sleeve 38 has a complimentary flare 46 at the head end and surrounds the shank 34. The sleeve accepts shear loading and the tie bolt accepts shock axial loading with low stress concentrations in highly stressed areas.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: September 26, 1989
    Assignee: United Technologies Corporation
    Inventor: Leland J. Radtke
  • Augmentor liner construction
    Patent number: 4864818
    Abstract: An augmentor liner 16 for a gas turbine engine is formed of thin perforated material and has pressurized cooling air surrounding it. A stiffner ring 42 is supporter from the liner with radially flexible straps 52, while relative radial displacement is limited by clips 50, 44. The liner is restrained from buckling while permitting thermal expansion.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: September 12, 1989
    Assignee: United Technologies Corporation
    Inventor: James J. Taylor
  • Control system for a gas turbine engine
    Patent number: 4864813
    Abstract: When a stall is dectected during high power operation, the engine is given one chance to recover without a change in bleed schedule. Should a record stall occur within 10 seconds the control system switches to an override bleed schedule for 51/2 minutes, or until throttle is reduced. This supplies a minimum adaquate thrust for a limited time.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: September 12, 1989
    Assignee: United Technologies Corporation
    Inventor: Leon Krukoski
  • Resiliently clamped support
    Patent number: 4863329
    Abstract: A structure 10 is resiliently clamped and supported on stud 12. A cylindrical core 38 of the spring sleeve is compressed by nut 34 against a stop 32. The supported structure is biased against the stop 32 by a plurality of spring fingers 40 located at the lower end of the core.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: September 5, 1989
    Assignee: United Technologies Corporation
    Inventor: Gregory S. Wilson
  • Cathode flow control for fuel cell power plant
    Patent number: 4859545
    Abstract: A system and method for regulating the total oxygen content entering the cathode side of a fuel cell stack at less than full power depends on measurement of: oxygen partial pressure in the cathode exhaust stream; total flow entering the cathode; and current produced by the stack. During partial power operation of the stack, it is desirable to limit the cathode potential, or voltage, by recycling cathode exhaust and mixing it with incoming fresh air fed into the cathodes. This system ensures that the total oxygen flow to the cathodes remains constant at any given current by reducing the amount of fresh air flowing to the cathodes as the recycled cathode exhaust flow is increased.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: August 22, 1989
    Assignee: International Fuel Cells Corporation
    Inventors: Glenn W. Scheffler, George Vartanian
  • Cooled gas turbine blade
    Patent number: 4859147
    Abstract: The airfoil shaped body has a separate leading edge portion (14) spaced from the main body (12). Slots (22) thereby formed discharge cooling air parallel to surface (38) of the main body. A step change across the slot between the leading edge surface (52) and the main body surface (38) facilitates smooth introduction of cooling air.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: August 22, 1989
    Assignee: United Technologies Corporation
    Inventors: Kenneth B. Hall, Kenneth K. Landis
  • Variable inlet guide vane
    Patent number: 4856962
    Abstract: Heated inlet guide vane 20 is eccentrically supported by trunnions 22, 24. Heating air 36 passes from opening 42 to recess 50 located in the vane which is shaped to communicate with opening 42 throughout the range of rotation of vane 20.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: August 15, 1989
    Assignee: United Technologies Corporation
    Inventor: Robert W. McDow