Patents Examined by William McCalister
  • Patent number: 10287913
    Abstract: A method of bowed rotor start response damping for a gas turbine engine is provided. A spring rate and a damping characteristic of one or more bearing supports in the gas turbine engine are selectively modified while a shaft of the gas turbine engine rotates below a speed which is adversely affected by a bowed rotor condition of the gas turbine engine.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 14, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Gregory M. Savela
  • Patent number: 10266019
    Abstract: A pneumatically operated gas valve mounted on a vessel containing pressurized gas. The gas valve includes a piston positioned in a cylinder with one closed end so that the piston seats against a gas outlet to close the gas valve. A control reservoir is formed in the cylinder between the piston and the closed end of the cylinder. Upon filling vessel, some of the pressurized gas enters the control reservoir to provide a control pressure behind the piston. Actuating the control mechanism vents the control reservoir, resulting in the gas valve opening rapidly to release the pressurized gas in the vessel through an exhaust port of the gas valve.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 23, 2019
    Assignee: Gaither Tool Company, Inc.
    Inventor: Daniel Kunau
  • Patent number: 10253635
    Abstract: A turbine blade according to an example of the present disclosure includes, among other things, a platform extending from a root section, an airfoil section extending radially from the platform to an airfoil tip, a plurality of cooling passages defined in an external wall of the airfoil tip, the plurality of cooling passages extending radially between the airfoil tip and a cavity in the airfoil section bounded by the external wall, and each of the plurality of cooling passages defining an inlet port along the cavity and an exit port adjacent the airfoil tip, and at least one internal feature within each of the plurality of cooling passages that meter flow to the respective exit port.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: April 9, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Dominic J. Mongillo, Jr., Jeffrey R. Levine, Kyle C. Lana, Sasha M. Moore
  • Patent number: 10254772
    Abstract: A balanced port pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway, an orifice being disposed between the fluid inlet and the fluid outlet. A valve seat is disposed within the fluid passageway. A valve plug is also disposed within the fluid passageway. A piston is disposed within the valve body, the piston separating the fluid passageway from a balancing chamber. A sleeve extends away from the piston, the sleeve forming a balancing passage that fluidly connects the fluid passageway with the balancing chamber. The sleeve includes an open end that terminates within the orifice. By terminating within the orifice, the open end of the sleeve generates boost only towards the end of a valve opening cycle when the valve plug approaches a fully open position, which is where boost is most needed.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: April 9, 2019
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventor: Christopher J. Hunt
  • Patent number: 10247036
    Abstract: A pressure fed oil drain for gas turbine engine (10) includes an oil sump (48) and a passage (60, 63) in selective flow communication with the oil sump (48), the passage in flow communication with a drain (62), the passage being pressurized and creating a differential between the passage and ambient atmosphere (65), the drain is disposed at an elevation beneath a passage feature (64) when the turbine engine is disposed at an extreme attitude angle, the passage (63) extending upwardly when in the extreme attitude angle.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: April 2, 2019
    Assignee: General Electric Company
    Inventors: Kevin Michael Do, Keith Lloyd Jones
  • Patent number: 10240830
    Abstract: An expansion valve (1) for a vapor compression system, the valve (1) comprising a first valve part (5) having an outlet orifice (7) and a piston (8) movable inside the outlet orifice (7) in response to a differential pressure across the expansion valve (1), controlling a fluid flow through the valve (1). The piston (8) comprises a stop element (9) at an outlet end (8b) of the piston (8) and mechanical forcing means (10) to force the piston (8) towards a position in which the stop element (9) is brought into abutment with a valve seat (12) of the first valve part (5). A differential pressure below a predefined threshold value causes the stop element (9) of the piston (8) to abut the valve seat (12) of the first valve part (5), preventing fluid flow through the first valve part (5), via the forward fluid passage.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: March 26, 2019
    Assignee: Danfoss A/S
    Inventors: Bjarke Skovgard Dam, Georg Fosel, Carsten Molhede Thomsen, Jens Pawlik, Louis Sullivan
  • Patent number: 10234058
    Abstract: Methods and apparatus of assessing a test of a solenoid valve via a positioner are disclosed. An example apparatus includes a solenoid valve to enable an actuator to close an emergency valve and a valve positioner fluidly and communicatively coupled to the solenoid valve. The valve positioner is to instruct the solenoid valve to transition the solenoid valve from a first state to a second state. The valve positioner is to monitor a pressure change of a pressure chamber of the actuator in fluid communication with the solenoid valve relative to an initial pressure for a monitoring duration. The valve positioner is to identify a maximum pressure change during the monitoring duration and determine a ready state of the solenoid valve when the maximum pressure change is greater than a minimum trip value and the pressure change at a monitoring end time is less than a maximum reset value.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: March 19, 2019
    Assignee: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Kenneth Junk, Shannon Jelken
  • Patent number: 10220422
    Abstract: A method includes issuing a state change fluid into an internal passage of an additively manufactured article and causing the state change fluid to change from a first state having a first viscosity to a second state that is either solid or has a second viscosity that is higher than the first viscosity within the internal passage. The method can also include causing the state change fluid to change back from the second state to the first state and flushing the state change fluid from the internal passage to remove residual powder from the additively manufactured article.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 5, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Diana Giulietti, Eric Karlen, Sergey Mironets, Colette O. Fennessy, Kiley J. Versluys
  • Patent number: 10215291
    Abstract: A regulating device may include a housing that defines an inlet chamber and an outlet chamber, with a flow restriction seat between the inlet chamber and the outlet chamber. A flow restriction valve is movable relative to the flow restriction seat to adjust the flow between the inlet chamber and the outlet chamber of the regulating device. A servo valve having a servo chamber may be used to adjust the position of the flow restriction valve. The servo chamber may be fluidly coupled to the inlet chamber though a fixed flow restriction and to the outlet chamber though an adjustable flow restriction. A stepper motor may be used to adjust the servo valve to adjust the adjustable flow restriction between the servo chamber and the outlet chamber. This causes a change of the servo pressure, which moves the flow restriction valve and adjusts the flow of the regulating device.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 26, 2019
    Assignee: Honeywell International Inc.
    Inventor: Willem Super
  • Patent number: 10215184
    Abstract: The disclosure includes controlling a pressure ratio for a compressing system, comprising introducing a quantity of liquid into an input stream to create a multiphase input stream, compressing the multiphase input stream with a centrifugal compressor to create a discharge stream, measuring a parameter of the discharge stream, wherein the discharge parameter corresponds to a pressure ratio for the centrifugal compressor, when the parameter exceeds a first predetermined point, increasing a pressure ratio of the centrifugal compressor by increasing the quantity of liquid introduced, and when the parameter exceeds a second predetermined point, decreasing the pressure ratio by decreasing the quantity of liquid introduced.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: February 26, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Michael T. Matheidas, Stanley O. Uptigrove
  • Patent number: 10215171
    Abstract: An apparatus for feeding gas mixtures to a compressor comprising a tubular mixing pipe connected with the compressor intake, first and second gas intake devices injecting into the mixing pipe gas received from a Helium source and an Oxygen source respectively, two sensors measuring the Oxygen percentage of the gas mixture, a first servo-controlled throttling valve interposed between the first gas intake device and the Helium source, a second servo-controlled throttling valve interposed between the second gas intake device and the Oxygen source, and a control unit configured to manage the throttling valves depending on the Oxygen percentages of the gas mixture measured by the sensors. The apparatus includes first and second auxiliary pressure regulators, electrically connected with the control unit, interposed respectively between the first servo-controlled valve and a manual regulator of the Helium source and between the second servo-controlled valve and a manual regulator of the Oxygen source.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 26, 2019
    Assignee: NARDI COMPRESSORI S.R.L.
    Inventor: Marco Ghiotto
  • Patent number: 10215341
    Abstract: Methods of remotely facilitating the transition between flooding and hydrotesting a subsea pipeline include a control unit of a subsea valve actuation system closing off fluid flow out of the pipeline at the receiving end thereof based at least partially upon one or more signals emitted by at least one intelligent pig that has passed through the pipeline during flooding and without the involvement of an external source at the surface, or a UV, at the pig receiving end of the pipeline.
    Type: Grant
    Filed: September 25, 2016
    Date of Patent: February 26, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Andrew J. Barden, Luis Russo, Peter Dixon, Alastair Goodall
  • Patent number: 10203059
    Abstract: A dual-air tap inflation nozzle includes a body, a first cap assembly, a second cap assembly, a slidable valve slidably disposed in the body, and a lever member. The body has a first end, a second end, a first passage and a second passage in communication to the first passage. The first cap assembly is mounted to the first end and has a third diameter. The second cap assembly is mounted to the second end and has a fourth diameter larger than the third diameter. The lever member is abutable against the slidable valve to cause the second passage to move in relation to the first passage. Thus, the second passage is in communication with a first inflatable space or a second inflatable space of the body.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 12, 2019
    Inventor: Louis Chuang
  • Patent number: 10203704
    Abstract: A servovalve system comprising a pilot stage valve in communication with an hydraulic stage valve, the hydraulic stage valve comprising a valve member movably mounted in a valve chamber to selectively meter fluid flow in a flow path from an upstream inlet port to a downstream outlet port and at least two variable-sized orifices disposed in the flow path between the inlet and outlet ports, an upstream pressure sensor, a downstream pressure sensor, a fluid temperature sensor, a position sensor sensing a linear position of the valve member, a controller that receives input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor; and the controller configured to provide a control signal to the pilot stage valve as a function of the input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 12, 2019
    Assignee: Moog Inc.
    Inventor: Gregory B. Weber
  • Patent number: 10202857
    Abstract: A vane stage includes an arcuate platform defining a axial centerline axis having a pair of flanges that extend radially inward from the platform. The flanges are axially spaced from one another and from respective forward and aft ends of the platform. The vane stage includes a vane extending radially outward from the platform and a seal carrier mounted to the flanges of the platform. A method for constructing a vane stage includes sliding a seal carrier between flanges of an arcuate platform. Each flange includes at least a pair of through holes and interfaces with a respective axial side of the seal carrier. The method includes drilling through holes in each axial side of the seal carrier by using the through holes of each flange as guides.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: February 12, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Mark E. Simonds, Steven J. Feigleson
  • Patent number: 10190190
    Abstract: Various embodiments provide a leaching solution monitoring module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regulator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 29, 2019
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: John Warren Dean, Jr., Christopher Wooten, Chase Zenner
  • Patent number: 10190306
    Abstract: An anti-oscillation valve for and in a trap primer to restrict the flow of water from the supply line to an upper chamber of the trap primer and to facilitate the flow of water from the upper chamber to the supply line. The anti-oscillation valve having a body with a water supply bore provided therethrough. The bore includes portions defining an inlet and an outlet. First and second bore shoulders are formed in the bore. A filter screen is retained in engagement with the first bore shoulder. An anti-oscillation valve disc freely rests on the second bore shoulder and is retained between the first bore shoulder and the second bore shoulder. The anti-oscillation valve disc includes a valve disc orifice defined through and communicating the inlet with the outlet.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 29, 2019
    Assignee: Jay R. Smith Manufacturing Company
    Inventor: William A. Stanaland
  • Patent number: 10184496
    Abstract: A method of pressurization and evacuation of a system including during a pressurization phase; introducing a pressurized gas stream into the top valve, which is actuated to direct the pressurized gas stream into the bottom valve, wherein the bottom valve is actuated to direct the pressurized gas stream to the customer apparatus; and during a vacuum phase; introducing the pressurized gas stream into the top valve, which is actuated to direct the pressurized gas stream into the inlet port of the pressure inlet of the educator, thereby producing a low pressure condition in the suction inlet, introducing a customer gas stream into the bottom valve, which is actuated to direct the customer gas to exit the bottom valve, wherein the low pressure condition causes the customer gas stream to be directed to the educator suction inlet, wherein it mixes with the pressurized gas stream and exits the educator discharge outlet.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 22, 2019
    Assignee: Airgas, Inc.
    Inventor: Jeffrey K. Harrington
  • Patent number: 10184491
    Abstract: A suction device is provided which includes a fan device for generating a suction air flow and an air conveying device having at least one flow deflection element comprising an inlet tube and an outlet tube, wherein the outlet tube is oriented transversely to the inlet tube, and wherein in a transitional area between the inlet tube and the outlet tube there is arranged a sound mirror device, which at least one of (i) reflects and (ii) absorbs sound.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: January 22, 2019
    Assignee: Alfred Kärcher SE & Co. KG
    Inventors: Florian Ebert, Felix Bensing, Sebastian Junker
  • Patent number: 10180149
    Abstract: A control valve device includes a valve body having an actuator port connected to an actuator and a relief passage configured to allow the actuator port to communicate with a return passage, a spool slidably assembled into the valve body and configured to allow the actuator port to selectively communicate with a supply side or a return side, a relief valve configured to open/close the relief passage to control pressure of the actuator port, and an on/off valve assembled into an assembling hole which is formed in the valve body. The on/off valve configured to allow the actuator port to communicate with the relief passage through the assembling hole at the time of valve open.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: January 15, 2019
    Assignee: KYB Corporation
    Inventors: Syota Mizukami, Takeshi Terao