Patent application number | Description | Published |
20140303640 | Specimen Retrieval Device - A specimen retrieval pouch (pouch) is provided. The pouch including a closed bottom portion, an open upper portion and an elongated tube operably coupled to an interior wall of the pouch. The elongated tube has a plurality of openings positioned along a length thereof. A suture accessible at a proximal end of the pouch is positioned within the elongated tube and extends past a distal end thereof. The suture is movable within the elongated tube and relative to the pouch. The suture has either a needle or a loop at a distal end thereof for attaching to tissue and subsequently drawing the tissue into the pouch when the suture is pulled. One or more reinforced tabs are operably disposed on the pouch. The reinforced tab(s) is/are configured to be grasped by a user to provide a counter pull force as the suture is being pulled through the elongated tube. | 10-09-2014 |
20150038990 | DEVICES, SYSTEMS, AND METHODS FOR WOUND CLOSURE - A wound closure system includes a suture member and a suture grasper. The suture member includes a suture and a retention member engaged to an end of the suture. The retention member is at least partially flexible and defines a central opening. The suture grasper includes a needle defining a distal portion configured for insertion through the central opening of the retention member to retrieve the retention member from an internal surgical site. The distal portion of the needle defines a distally-facing feature configured to at least partially flex the retention member upon insertion of the distal portion into the central opening to permit passage of the distal portion therethrough and a proximally-facing feature configured to inhibit proximal withdrawal of the distal portion through the central opening of the retention member. | 02-05-2015 |
20150039025 | DEVICES, SYSTEMS, AND METHODS FOR WOUND CLOSURE - A wound closure device includes a shaft, a sleeve, a suture, and a cartridge. The sleeve is disposed about the shaft and defines first and second sleeve arms movable between a retracted position, wherein the sleeve arms extend along the shaft, and a deployed position, wherein the sleeve arms extend outwardly from the shaft. The cartridge includes a base and first and second cartridge arms. The base is configured for releasable coupling with the shaft and defining a pocket configured to retain an intermediate portion of the suture. The first and second cartridge arms are configured for positioning adjacent the respective first and second sleeve arms and are configured to move in conjunction with the respective first and second sleeve arms between the retracted and deployed positions. The first and second cartridge arms are configured to retain first and second ends of the suture, respectively. | 02-05-2015 |
20150209021 | DETACHABLE RATCHETING SHAFT FOR SPECIMEN RETRIEVAL BAG - A system for retrieving a specimen includes a collapsible bag having a first mating member and a retrieval device having a second mating member. The second mating member cooperates with the first mating member for coupling the collapsible bag with the retrieval device. A rotation mechanism is disposed in the retrieval device. Actuation of the rotation device collapses an excess portion of the collapsible bag. | 07-30-2015 |
20150313631 | TWO-SHOT MOLDED OPTICAL OBTURATOR - A method of manufacturing an optical obturator includes providing an injection mold including a mold cavity defining an outer surface of the optical obturator and a core pin centrally positioned within the mold cavity. The core pin defines an inner surface of the optical obturator. In particular, the core pin may be cantilevered to the injection mold. The method further includes injecting a first material between the core pin and the mold cavity to form the tubular shaft and injecting a second material between a distal portion of the core pin and a distal portion of the mold cavity to form the optical tip. | 11-05-2015 |
Patent application number | Description | Published |
20120253116 | System and Method for Performing Surgical Procedures with a Modular Surgical System - A surgical system is provided including a reusable handle assembly having a controller and a reusable cannula assembly configured to be operatively connected to and steerable by the reusable handle assembly. Additionally, the surgical system includes a plurality of surgical instruments configured to be inserted through the reusable handle assembly and configured to advance a length of the reusable cannula assembly, such that the plurality of surgical instruments are engaged with at least one trigger mechanism of the reusable handle assembly. The handle assembly, the cannula assembly, and the plurality of surgical instruments are modular components configured to be releasably or removably coupled or interconnected to each other. | 10-04-2012 |
20120253132 | Gear Driven Triangulation - A surgical access port and method for achieving triangulation is disclosed, the surgical access port comprising a housing and an articulation structure. The housing is comprised of a cylindrical member having proximal and distal ends, and defining a longitudinal axis. The articulation structure is comprised of at least two lumens, each of the at least two tubular members disposed in a respective lumen, at least two rotating members disposed along each of the at least two tubular members, an actuating member, and a rigid member connecting each rotating member to each tubular member. The tubular members are configured to receive instruments for use in minimally invasive procedures. | 10-04-2012 |
20120253325 | System And Method For Performing Surgical Procedures With A Modular Surgical System Having A Rail Mechanism - A surgical system is provided including a reusable handle assembly having a controller and a reusable cannula assembly configured to be operatively connected to and steerable by the reusable handle assembly. The surgical system also includes a rail mechanism configured to cooperate with a port inserted through an incision, the rail mechanism mechanically attached to a stable platform. A plurality of surgical instruments are configured to be inserted through the reusable handle assembly and configured to advance a length of the reusable cannula assembly, such that the plurality of surgical instruments are engaged with at least one trigger mechanism of the reusable handle assembly. The handle assembly, the cannula assembly, and the plurality of surgical instruments are modular components configured to be releasably coupled to each other. The reusable cannula assembly slidably engages the rail mechanism to extend through the port and into the incision. | 10-04-2012 |
20120277758 | Specimen Retrieval Device - A specimen retrieval pouch (pouch) is provided. The pouch including a closed bottom portion, an open upper portion and an elongated tube operably coupled to an interior wall of the pouch. The elongated tube has a plurality of openings positioned along a length thereof. A suture accessible at a proximal end of the pouch is positioned within the elongated tube and extends past a distal end thereof. The suture is movable within the elongated tube and relative to the pouch. The suture has either a needle or a loop at a distal end thereof for attaching to tissue and subsequently drawing the tissue into the pouch when the suture is pulled. One or more reinforced tabs are operably disposed on the pouch. The reinforced tab(s) is/are configured to be grasped by a user to provide a counter pull force as the suture is being pulled through the elongated tube. | 11-01-2012 |
20120289811 | MASK ON MONITOR HERNIA LOCATOR - A method of tracking the location of a hernia defect is disclosed, the method including providing a display device, a camera adapted to transmit an image to the display device, a marking surface disposed on the display device and a marker adapted to alter the marking surface when applied to the marking surface. The method includes receiving an image of a hernia defect from the camera and displaying the received image on the display device and marking the shape and position of the hernia defect on the marking surface by applying the marker to the marking surface. Alternatively the display device may be marked by executing by the processor a computer program to mark the shape and position of the hernia defect on the display device. | 11-15-2012 |
20130103042 | DETACHABLE RATCHETING SHAFT FOR SPECIMEN RETRIEVAL BAG - A system for retrieving a specimen includes a collapsible bag having a first mating member and a retrieval device having a second mating member. The second mating member cooperates with the first mating member for coupling the collapsible bag with the retrieval device. A rotation mechanism is disposed in the retrieval device. Actuation of the rotation device collapses an excess portion of the collapsible bag. | 04-25-2013 |
Patent application number | Description | Published |
20100161244 | METHOD AND APPARATUS FOR MONITORING STRUCTURAL HEALTH - A method includes performing a first damage prediction with a computational model using at least data from a first multitude of damage sensors on a structure, performing a second damage prediction with the computational model using at least data from a second multitude of load sensors associated with the structure, and selectively performing a damage monitoring action in response to the first damage prediction and the second damage prediction to determine a structural health A system includes a computing device configured to perform a first damage prediction using at least data from a multitude of damage sensors on a structure, a second damage predication using at least data from a multitude of load sensors associated with the structure, so as to selectively perform a damage monitoring action in response to the first damage prediction and the second damage prediction to determine a structural health of the structure. | 06-24-2010 |
20110112878 | Virtual Monitoring of Aircraft Fleet Loads - A computer-implemented method, system, and computer program product for virtual monitoring of aircraft fleet loads are provided. The method includes calculating virtual load data associated with an aircraft from a set of orthogonal waveforms. The method also includes calculating a set of coefficients as a function of parametric data and high frequency data associated with an aircraft. The method further includes storing the set of coefficients on the aircraft and transmitting the set of coefficients to a ground-based system configured to reproduce the virtual load data based on a copy of the set of orthogonal waveforms and the received set of coefficients in order to perform aircraft fleet management. | 05-12-2011 |
20110264310 | Method Of Determining A Maneuver Performed By An Aircraft - A method of determining a maneuver performed by an aircraft having sensors for monitoring motion data, the method including periodically sampling the sensors to electronically determine segments of motion data of the aircraft; aggregating sequences of the segments of the motion data; comparing the aggregated segments of motion data to models of particular maneuvers; and determining the maneuver performed by the aircraft. | 10-27-2011 |
20130274989 | Method And System For Detecting Pushrod Faults - A system for monitoring for pushrod faults in an aircraft includes a pushrod; a sensor ( | 10-17-2013 |
20130275059 | HYBRID VIRTUAL LOAD MONITORING SYSTEM AND METHOD - Virtual sensors can be used to monitor the loads on the system in determining damage accumulation, remaining useful life or retirement time of the components. A virtual sensor is a mathematical construct to infer a desired system measurement (e.g. a structural load) from readily available system state parameters (e.g. speed, weight, load factors, control settings, etc.). The accuracy of the virtual sensor depends upon the mapping between the desired measurement and the state parameters. A hybrid load monitoring system and method includes one or more direct or physical sensor measurements in addition to the plurality of virtual sensors. Signals from the physical sensors are included as an input (as opposed to an output) to the mapping between system state parameters and the various target sensor feature amplitudes. | 10-17-2013 |
Patent application number | Description | Published |
20100251829 | APPARATUS AND METHOD FOR MEASURING A FLUID FLOW PARAMETER WITHIN AN INTERNAL PASSAGE OF AN ELONGATED BODY - A method and apparatus for measuring at least one parameter of a fluid flowing through an internal passage of an elongated body is provided. The internal passage is disposed between a first wall and a second wall, and the first wall and the second wall each include an interior surface and an exterior surface. The method includes the steps of providing an array of at least two ultrasonic sensor units, operating the sensor units to transmit ultrasonic signals at one or more frequencies substantially coincident with at least one frequency at which the transmitted ultrasonic signals resonate within the first wall, receiving the ultrasonic signals with the sensor units, and processing the received ultrasonic signals to measure the at least one parameter of fluid flow within the internal passage. | 10-07-2010 |
20110056298 | FLOW AND PIPE MANAGEMENT USING VELOCITY PROFILE MEASUREMENT AND/OR PIPE WALL THICKNESS AND WEAR MONITORING - The present invention provides new techniques for non-invasive and real-time measurement of the velocity profile of slurry flow in horizontal pipes, as well as the measurement and trending of pipe wear on slurry lines. In the first case, this information can be used to determine the approach and onset of solid deposition on the bottom of the pipe. Having this information in real time can enable operation at lower velocities or higher solids concentration or both while avoiding solids deposition or plugging and their associated operational costs. In the second case, the present invention uses a permanently or semi-permanently installed ring of conformable ultrasonic transducers clamped onto the outside of the pipe. These transducers are used to measure the thickness of the pipe under their respective locations. | 03-10-2011 |
20110203387 | Method and Apparatus for Measuring Parameters of a Fluid Flowing within a Pipe Using a Configurable Array of Sensors - An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides a signal indicative of pressure within the pipe at a corresponding axial and/or circumferential location of the pipe. The sensors are selectively configurable to provide the pressure signals. The signals are processed to determine the parameter. The array of sensors is configurable in response to different criteria. The criteria includes at least one of the parameter of the fluid to be output, an input signal specifying sensors to be selected, a predetermined configuration based on the parameter to be determined, and in response to a previously determined parameter of the fluid. | 08-25-2011 |
20110208447 | Method and Apparatus for Measuring Parameters of a Fluid Flowing within a Pipe Using a Configurable Array of Sensors - An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides a signal indicative of pressure within the pipe at a corresponding axial and/or circumferential location of the pipe. The sensors are selectively configurable to provide the pressure signals. The signals are processed to determine the parameter. The array of sensors is configurable in response to different criteria. The criteria includes at least one of the parameter of the fluid to be output, an input signal specifying sensors to be selected, a predetermined configuration based on the parameter to be determined, and in response to a previously determined parameter of the fluid. | 08-25-2011 |
20130145842 | Dispersion Compensation Technique for Differential Sonar Measurement - Density Meter. - The present invention provides a novel technique for canceling substantially the effects of dispersion when two speed of sound (SOS) measurements are required on the materials within a pipe to perform a calculation or derive certain characteristics about the materials flowing in the pipe. According to some embodiments of the present invention, the apparatus may comprise a signal processor configured to receive signals containing information about two speed of sound measurements having two sets of data related to materials within a pipe; and process the two sets of data simultaneously and determine a ridge point by point difference in order to cancel substantially effects of dispersion. | 06-13-2013 |
20130192351 | METHOD AND APPARATUS FOR DETERMINING GVF (GAS VOLUME FRACTION) FOR AERATED FLUIDS AND LIQUIDS IN FLOTATION TANKS, COLUMNS, DRUMS, TUBES, VATS - The invention provides a signal processor that receives a signal containing information about an acoustic signal that is generated by at least one acoustic transmitter, that travels through an aerated fluid in a container, and that is received by at least one acoustic receiver arranged in relation to the container, including inside the container; and determines the gas volume fraction of the aerated fluid based at least partly on the speed of sound measurement of the acoustic signal that travels through the aerated fluid in the container. The signal processor also sends an output signal containing information about the gas volume fraction of the aerated fluid. The signal processor may be configured together with at least one acoustic transmitter, the at least one acoustic receiver, or both. | 08-01-2013 |
20130247673 | METHOD AND APPARATUS FOR USING CEPSTRUM AND WAVELET BASED ALGORITHMS FOR WALL THICKNESS MEASUREMENT - New techniques are provided for measuring the thickness of a pipe wall using ultrasonic reflections. The apparatus includes a signal processor that receives a signal containing information about ultrasonic pulses injected into a pipe wall; and determines a pipe wall thickness measurement based at least partly on decomposing the signal received in order to identify either peaks using a cepstrum analysis or repeated spacing using a wavelet analysis. The wavelet analysis includes dividing data in the signal received into a specific frequency component and a defined temporal component in order to detect correct pulses where multiple reflections are caused by irregularities in the pipe wall surface being measured. The cepstrum analysis includes processing repeating pulses in the signal in order to detect correct pulses where multiple reflections are caused by irregularities in the pipe wall surface being measured. | 09-26-2013 |
20140026666 | WEAR MONITORING WITH ROTATIONAL SENSOR AND SENSOR THICKNESS - Apparatus for determining a thickness of a wall of a pipe, featuring a signal processing module configured to respond to signaling containing information about traveling stress waves transmitted to and reflected back from a wall of a pipe by a sensor band that includes a series, ring or array having multiple transducers circumferentially arranged and mounted around, and attached to or clamped onto, an outside wall of the pipe; and determine a profile of a thickness of the wall of the pipe corresponding to circumferential locations of the multiple transducers based on the signaling received from the sensor band; and one or more orientation or rotation sensors, each responding to its orientation in relation to its displacement on the pipe and to provide an orientation signal containing information about the same. | 01-30-2014 |
20140026667 | GRAPHICAL USER INTERFACE RE WEAR MONITORING - Apparatus for determining a thickness of a wall of a pipe, featuring a signal processing module configured to respond to signaling containing information about traveling stress waves transmitted to and reflected back from a wall of a pipe by a sensor band that includes a series, ring or array having multiple transducers circumferentially arranged and mounted around, and attached to or clamped onto, an outside wall of the pipe; determine a profile of a thickness of the wall of the pipe corresponding to circumferential locations of the multiple transducers based on the signaling received from the sensor band, and the provides corresponding signaling containing information about the profile of the thickness of the wall of the pipe; and another module configured to receive the corresponding signaling and provide a visual indication of either data or a graph of the thickness of the wall of the pipe. | 01-30-2014 |
20140297204 | METHOD AND APPARATUS FOR PROVIDING REAL TIME AIR MEASUREMENT APPLICATIONS IN WET CONCRETE - Apparatus is provided having an acoustic-based air probe with an acoustic source configured to provide an acoustic signal into a mixture of concrete; and an acoustic receiver configured to be substantially co-planar with the acoustic source, to respond to the acoustic signal, and to provide signaling containing information about the acoustic signal injected into the mixture of concrete. | 10-02-2014 |
20140326885 | LASER BASED SYSTEM FOR BITUMEN CONTENT DETERMINATION, E.G., USING DISCRETE WAVELENGTH SPECTROSCOPIC ANALYSIS - The present invention provides a technique that uses discrete wavelengths of illumination of an ore sample, and through the use of optical filters and laser illumination the signal-to-noise ratio of the measurement can be greatly improved, and may take the form of apparatus featuring a signal processor configured to: receive signaling containing information about a spectral reflectance caused by discrete wavelengths illuminating an ore sample; and determine information about a bitumen content of the ore sample based at least partly on the signaling. The signal processor may provide corresponding signaling containing information about the bitumen content of the ore sample, including for further processing, printing or displaying. | 11-06-2014 |
20140347472 | SPECTROSCOPIC ANALYSIS OF OIL SANDS ORE FACE FOR REAL TIME ORE BLEND MANAGEMENT - Apparatus is provided featuring a signal processor or signal processing module configured to receive signaling containing information about images of an ore sample; and determine information about a Bitumen Content of the ore sample based at least partly on the signaling, including for use in real time ore blend management in a bitumen recovery process related to mined oil sands. The ore sample may be an ore face, and the signaling may contain information about the images of the ore face. The signal processor or signal processing module may be configured to determine a real time ore face ore grade visualization based at least partly on the signaling, and provide corresponding signaling containing information about the real time ore face ore grade visualization, including a composite overlay image. | 11-27-2014 |
20140373631 | ACOUSTIC PROBING TECHNIQUE FOR THE DETERMINATION OF INTERIOR PIPE COATING WEAR OR SCALE BUILD-UP AND LINER WEAR - Apparatus is provided comprising a signal processor that receives signaling containing information about an acoustic signal swept and sensed over a frequency range in relation to a pipe; and determines information about the structure of the pipe based at least partly on two or more sub-frequency ranges that form part of the frequency range in the signaling received. The signal processor also receives the acoustic signal being transmitted to the pipe and corresponding signaling in the two or more sub-frequency ranges containing information about reflections of the acoustic signal back from the pipe; and determines information about the structure of the pipe based at least partly on a coherent mixing of the acoustic signal and the corresponding signaling in the two or more sub-frequency ranges using a coherent acoustic tomography technique. Alternatively, the signal processor also receives associated signaling in the two or more sub-frequency ranges containing information about associated resonance in a liner of a wall of the pipe and determines information about the liner of the wall of the pipe, based at least partly on the two or more sub-frequency ranges. | 12-25-2014 |
20150019133 | ACOUSTIC MONITORING OF BLOCK CAVING - Apparatus is provided featuring a signal processing module configured to receive signaling containing information about detected acoustic emissions related to ore being mined from a block cave in a block caving process, including falling ore that creates unique acoustic signatures; and determine information about the ore being mined from the block cave in the block caving process, based at least partly on the signaling received. The signal processing module may receive the signaling from an array of acoustic sensors placed around the block cave, including where the array of acoustic sensors surrounds the block cave in both vertical and horizontal directions. The signal processing module may provide corresponding signaling containing corresponding information about the ore being mined from the block cave in the block caving process, including where the corresponding information includes information about a distribution and size of the ore being mined from the block cave in the block caving process. | 01-15-2015 |
20150083646 | DIMENSIONALLY CONTROLLED 'ENGINEERED POLYMER BUBBLE' FOR FLOTATION SEPARATION - Apparatus is provided featuring a first and second cells. The first cell receives an ore slurry having mineral particles of interest, receives unexpanded polymer microspheres comprising a surface having mineral collector chemistry attached thereto with molecules for attaching the mineral particles of interest, causes the unexpanded polymer microspheres to expand substantially in volume into expanded polymer microspheres having a substantially increased sphere surface area, and provides an expanded polymer microsphere foam layer comprising the expanded polymer microspheres with attached mineral particles of interest. The second cell receives the expanded polymer microsphere foam layer, and causes the expanded polymer microspheres to collapse substantially in volume into collapsed polymer microspheres having a substantially reduced sphere surface area that results in a mechanical shearing off of the attached mineral particles of interest. The second cell may also provide a mineral concentrate output having the mineral particles of interest. | 03-26-2015 |
20150135801 | BUBBLE SIZE DETERMINATION BASED ON BUBBLE STIFFNESS - Apparatus is provided comprising a signal processing module configured with at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured, with the at least one processor, to cause the apparatus at least to: receive signaling containing information about a stiffness of a concrete mixture; and determine an average bubble size of gas contained in the concrete mixture, based at least partly on the signaling received. The signal processing module may be configured to provide corresponding signaling containing information about the average bubble size of gas contained in the concrete mixture. The signal processing module may be configured to determine the pressure inside air bubbles and determine an average air bubble size of the gas contained in the concrete mixture, based at least partly on the pressure determined inside the air bubbles. | 05-21-2015 |
20150151308 | CHARGED ENGINEERED POLYMER BEADS/BUBBLES FUNCTIONALIZED WITH MOLECULES FOR ATTRACTING AND ATTACHING TO MINERAL PARTICLES OF INTEREST FOR FLOTATION SEPARATION - Apparatus is providing featuring a synthetic bead having a solid-phase body with a surface, and being configured with a predetermined electric charge so as to respond to a corresponding predetermined electric field; and a plurality of molecules attached to at least part of the surface, the molecules comprising a functional group selected for attracting and attaching one or more mineral particles of interest to the molecules. Some combination of the solid-phase body or the surface may be configured from a polymer. The polymer may be polyethylenimine. The polyethylenimine may be engineered or configured to be highly charged so as to be used to collect the mineral particles of interest and then manipulated through and by the corresponding predetermined electric field. | 06-04-2015 |
Patent application number | Description | Published |
20100296947 | APPARATUS AND METHOD FOR PROVIDING DAMPER LIQUID IN A GAS TURBINE - A fluid distribution system for use in a gas turbine engine includes a fan shaft, a damper, a bearing, and a pump. The damper supports the bearing, and the bearing supports the fan shaft. The pump is connected to and driven by the fan shaft. The pump is also fluidically connected to the damper. | 11-25-2010 |
20110233871 | LIFTOFF CARBON SEAL - A liftoff carbon seal assembly includes a rotating seal plate adjacent to a rotating seal backer plate and a rotating seal plate retainer. The rotating seal plate defines a rotating seal plate face which extends beyond a rotating seal plate retainer face of the rotating seal plate retainer with a static carbon seal is adjacent to the rotating seal plate. | 09-29-2011 |
20110284103 | ACCESSING A VALVE ASSEMBLY OF A TURBOMACHINE - An example method of accessing a valve assembly of a turbomachine includes accessing a check valve of the valve assembly from a first position that is radially outside a flow path through the turbomachine. The method accessing a shut off valve of the valve assembly from a second position that is radially outside the flow path. The check valve and the shut off valve are configured to influence communication of lubricant along a lubricant communication path that extends between a location radially outboard the flow path and a location radially inboard the flow path. The first position is the same as the second position in some examples. | 11-24-2011 |
20110286836 | GEARED TURBOFAN ENGINE WITH INTEGRAL GEAR AND BEARING SUPPORTS - A gas turbine engine includes a bearing and a bearing support having a second wall extending between first and second ends and operatively supported by the bearing at a first end. An engine case is secured to the second end radially outward of the first end. A second wall integral with and extending transversely from the first wall provides a flexible support. The second wall has a flange, and a gear train component is secured to the flange. A gas turbine engine includes a support structure which supports the main rotatable structure via bearings and gear train components. The support provides both the necessary structural support for the rotor structure as well as desired flexibility for a fan drive gear system. | 11-24-2011 |
20120195753 | GAS TURBINE ENGINE ARCHITECTURE WITH LOW PRESSURE COMPRESSOR HUB BETWEEN HIGH AND LOW ROTOR THRUST BEARINGS - A method for servicing a gas turbine engine includes providing access from a forward section of the gas turbine engine to a gearbox contained within a bearing compartment. | 08-02-2012 |
20120260669 | FRONT CENTERBODY SUPPORT FOR A GAS TURBINE ENGINE - A front center body support for a gas turbine engine includes a front center body section, a bearing section and a frustro-conical interface section, the frustro-conical interface section between the front center body section and the bearing section. | 10-18-2012 |
20120263578 | GAS TURBINE ENGINE FRONT CENTER BODY ARCHITECTURE - A method for servicing a gas turbine engine includes providing access from a forward section of the gas turbine engine to a gearbox contained within a bearing compartment. | 10-18-2012 |
20120328431 | INTEGRAL BEARING SUPPORT AND CENTERING SPRING ASSEMBLY FOR A GAS TURBINE ENGINE - A bearing support assembly for supporting a bearing assembly within a bearing compartment of a gas turbine engine includes a centering spring and a bearing support member integrally joined together to form a one piece structure. The centering spring connects to the bearing assembly and has a portion that extends conically relative to a centerline axis of the gas turbine engine. The bearing support member extends from the centering spring to connect to an engine case of the gas turbine engine. | 12-27-2012 |
20130075976 | COMPLIANT MOUNTING OF AN AXIAL FACE SEAL ASSEMBLY - A axial face seal assembly includes first and second structures rotatable relative to one another about an axis. A carrier supports a seal that engages the second structure. The carrier is configured to move along the axis. First and second springs operatively are arranged between the first structure and the carrier. The first and second springs are configured to bias the carrier relative to the second structure respectively in first and second directions along the axis for providing a desired closing force on the second structure. A method of sealing a rotating structure includes biasing a seal toward a rotating sealing surface with a first spring to provide a desired axial closing force. The axial position of the seal relative to the rotating sealing surface is changed to an undesired axial closing force. The seal is biased with a second spring to achieve the desired axial closing force. | 03-28-2013 |
20130192242 | SPEED SENSOR PROBE LOCATION IN GAS TURBINE ENGINE - A gas turbine engine includes a fan, a fan drive gear system coupled to drive the fan, a compressor section including a first compressor and a second compressor and a turbine section. The turbine section includes a first turbine coupled to drive a first spool, which is coupled at a first axial position to a compressor hub that is coupled to drive the first compressor. The first spool is also coupled at a second axial position to a fan drive input shaft that is coupled to drive the fan drive gear system. A second turbine is coupled through a second spool to drive the second compressor. A speed sensor probe is operable to determine a rotational speed of the first spool. The speed sensor probe is located axially aft of the first axial position and the second axial position. | 08-01-2013 |
20130305733 | APPARATUS AND METHOD FOR PROVIDING DAMPER LIQUID IN A GAS TURBINE ENGINE - A method for distributing liquid in a gas turbine engine is disclosed. The method includes rotating a fan shaft coupled to a spool via a fan drive gear system. The spool drives rotation of the fan shaft through the fan drive gear system during operation of the gas turbine engine. A pump is driven via the fan shaft. Liquid is supplied from a sump to the pump under a first operating condition. Liquid is supplied from an auxiliary reservoir to the pump under a second operating condition. Liquid is pumped to a damper. | 11-21-2013 |
20140030088 | FORWARD COMPARTMENT SERVICE SYSTEM FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE - A gas turbine engine includes a jumper tube that extends through a first passage and a second passge. | 01-30-2014 |
20140054862 | SPRING CARRIER AND REMOVABLE SEAL CARRIER - A seal assembly includes a seal support, a spring carrier, a plurality of springs, and a seal carrier. The spring carrier is connected to the seal support by a guide assembly. The plurality of springs are disposed between the seal support and the spring carrier. The seal carrier is connected to the spring carrier and is removable therefrom. | 02-27-2014 |
20140062026 | FACE SEAL RETAINING ASSEMBLY FOR GAS TURBINE ENGINE - A face seal assembly for a gas turbine engine includes an engine static structure. A guide assembly supports a face seal for movement relative to the engine static structure in an axial direction. The guide assembly includes a guide pin having a first end that supports a washer that is retained by a circlip secured to the first end. The circlip is configured to limit movement of the face seal in the axial direction. | 03-06-2014 |
20140079546 | GAS TURBINE ENGINE FRONT CENTER BODY ARCHITECTURE - Disclosed is a gas turbine engine configured to include a propulsor section having a fan drive geared architecture. The gas turbine engine includes a gas generator section that includes a compressor section having a first rotor rotationally mounted to a first spool. The engine further includes a bearing package adapted for rotationally supporting the first spool. The bearing package is configured for supporting the first rotor during at least one of (1) a period prior to installation of the fan drive geared architecture into the engine and (2) a period after removal of the fan drive geared architecture from the engine. | 03-20-2014 |
20140140818 | GAS TURBINE ENGINE FRONT CENTER BODY ARCHITECTURE - A method for servicing a gas turbine engine includes disassembling a bearing compartment, providing access from a forward side of the gas turbine engine to a gearbox contained within said bearing compartment. The gas turbine engine provides a core flow path that extends from the forward side aftward in a core flow direction. The method includes servicing a component located within the bearing compartment. A method for servicing a gas turbine engine includes providing access from a forward side of a front center body assembly, and servicing a component located within a bearing compartment aft of the front center body assembly. The gas turbine engine includes a seal package located aft of a bearing package. A front wall is mounted to the front center body support and is removable from a front center body support to access at least one of the gearbox, the bearing package and the seal package. | 05-22-2014 |
20140174252 | MOUNT WITH AN AXIAL UPSTREAM LINKAGE FOR CONNETING A GEARBOX TO A TURBINE ENGINE CASE - A turbine engine assembly includes a turbine engine case, a gearbox and a plurality of gearbox mounts that connect the gearbox to the case. The case extends along an axis between an upstream end and a downstream end. The gearbox mounts include an axial mount that extends axially in an upstream direction from the gearbox to the case. | 06-26-2014 |
20140230403 | GAS TURBINE ENGINE SHAFT BEARING CONFIGURATION - A gas turbine engine includes a core housing that includes an inlet case and an intermediate case that respectively provide an inlet case flow path and an intermediate case flow path. A first shaft supports a low pressure compressor section that is arranged axially between the inlet case flow path and the intermediate case flow path. A first bearing supports the first shaft relative to the inlet case. A second bearing supports a second shaft relative to the intermediate case. A low pressure compressor hub is mounted to the first shaft. The low pressure compressor hub extends to the low pressure compressor section between the first bearing and the second bearing. | 08-21-2014 |
20140314546 | TURBINE ENGINE GEARBOX MOUNT WITH MULTIPLE FUSE JOINTS - A turbine engine assembly includes a turbine engine case, a gearbox and a plurality of mounts connecting the gearbox to the case. Each of the mounts includes a linkage and a fuse joint. The linkage extends towards the case substantially in a first direction. The fuse joint is configured to substantially prevent movement between the gearbox and the case when the fuse joint is subject to loading less than a threshold, and to permit a constrained movement between the gearbox and the case when the loading is greater than the threshold. The fuse joint of a first of the mounts has a different configuration than the fuse joint of a second of the mounts. | 10-23-2014 |
20140317926 | FRONT CENTERBODY SUPPORT FOR A GAS TURBINE ENGINE - A method for maintaining a gas turbine engine includes providing access from a forward section of a front center body assembly to a flex support mounted to a front center body support. The flex support is mounted to a geared architecture. | 10-30-2014 |
20140356141 | GEARED TURBOFAN ENGINE WITH INTEGRAL GEAR AND BEARING SUPPORTS - A gas turbine engine includes a bearing. A bearing support includes a first wall that extends between the first and second ends and is operatively supported by the bearing at a first end. An engine case is secured to the second end radially outward of the first end. A flexible support is provided by a second wall integral with and extending transversely from the first wall. The second wall has a first flange and a gear train component is secured to the first flange. | 12-04-2014 |
20160003105 | Integrated Flex Support and Front Center Body - A gas turbine engine is provided. The gas turbine engine may include a geared architecture, a central body support and a bearing package. The geared architecture may interconnect a spool and a fan rotatable about an axis. The central body support may provide an annular wall for a core flow path and an integral flex support inwardly extending therefrom. The integral flex support may couple the geared architecture to the central body support. The bearing package may include a bearing support removably coupled to the integral flex support. | 01-07-2016 |
20160083101 | AIRCRAFT ENGINE CASE SHOCK MOUNT - The present disclosure relates to shock mounts for turbine engine components. A shock mount may be used to mount an accessory gearbox to an engine case. The shock mount may allow free thermal expansion, while providing damping and stiffness in response to vibrations. The shock mount may include a cylinder filled with fluid, and a piston telescopically moveable within the cylinder. The piston may be coupled to an orifice plate. The orifice plate may include orifices through which the fluid may flow in response to compression or extension of the shock mount. The interaction of the fluid and the orifice plate may resist rapid compression or extension of the shock mount while allowing relatively slow compression or extension of the shock mount. | 03-24-2016 |