General Electric Patent Grants

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Granted: May 23, 2017
Patent Number: D787553

System and method for low power sampling of plethysmograph signals

Granted: May 23, 2017
Patent Number: 9655533
A method for generating a sampled plethysmograph data, includes measuring a plethysmograph waveform indicative of a first cardiac cycle and a second cardiac cycle, each cycle including a systolic waveform and a diastolic waveform. The method further includes estimating a first start time and a first duration for the systolic waveform of the first cardiac cycle and computing a plurality of amplitudes at a plurality of time instants for the first duration. The method further includes…

Methods and systems for controlling movement of detectors having multiple detector heads

Granted: May 23, 2017
Patent Number: 9655574
Methods and systems for controlling movement of detectors having multiple detector heads are provided. One system includes a gantry, a patient support structure supporting a patient table thereon, and a plurality of detector units. At least some of the detector units are rotatable to position the detector units at different angles relative to the patient table. The imaging system further includes a detector position controller configured to control the position of the rotatable detector…

Quench chamber with integrated scrubber system

Granted: May 23, 2017
Patent Number: 9657242
The present application provides a gasifier for creating a flow of a syngas. The gasifier may include a reaction chamber and a quench chamber. The quench chamber may include a number of integrated scrubber trays therein such that the syngas first enters a quench pool via a dip tube and then passes through the scrubber trays before leaving the quench chamber.

Methods of forming a multilayer thermal barrier coating system

Granted: May 23, 2017
Patent Number: 9657387
Methods are provided for forming a thermal barrier coating system on a surface of a component. The method can include introducing the component into a coating chamber, where a first ceramic source material and a second ceramic source material are positioned within the coating chamber of a physical vapor deposition apparatus. An energy source is directed onto the first ceramic source material to vaporize the first ceramic source material to deposit a first layer on the component. The…

Electrolyzer assembly method and system

Granted: May 23, 2017
Patent Number: 9657400
The present techniques provide a novel electrolyzer and methods for welding components of such electrolyzers. The techniques may use conductors, such as resistance wires, placed in paths around the internal structural features and edges of the components. The conductors may be incorporated into the components during manufacture by injection molding, or other molding techniques, or may be tacked or otherwise applied to the surface of the components after manufacture. When current, a field…

Flexible electrical submersible pump and pump assembly

Granted: May 23, 2017
Patent Number: 9657535
A submersible pumping assembly for a deviated wellbore is disclosed. The pump assembly including one or more electric submersible pumps disposed in a casing. The casing being disposed in a below ground deviated wellbore. The assembly including one or more electric motors disposed in the casing and configured to operate the one or more electric submersible pumps. The assembly further including one or more flexible joints. The one or more flexible joints are configured to linearly couple…

Repair tool for a turbine rotor wheel, and a turbine rotor wheel

Granted: May 23, 2017
Patent Number: 9657571
A process of preparing a turbine rotor wheel, a repair tool for machining a turbine rotor wheel, and a turbine rotor wheel are disclosed. The process includes providing the turbine rotor wheel, the turbine rotor wheel having a dovetail slot, a cooling slot, and a dovetail acute corner formed by the dovetail slot and the cooling slot and removing a stress region from the dovetail acute corner. The repair tool permits removal of strained material while also reducing the operating stress of…

Brazing tape and method of forming microchannels in a thermal barrier coating

Granted: May 23, 2017
Patent Number: 9657580
A method of forming micro channels in a thermal barrier coating includes placing a brazing tape on a substrate. The brazing tape has a first side and a second side with a plurality of ceramic members attached thereto. The first side is placed in contact with the substrate. A brazing step brazes the brazing tape to the substrate. An applying step applies a bond coat to the second side of the brazing tape. Another applying step applies a thermal barrier coating (TBC) onto the bond coat. A…

Methods and systems to monitor health of rotor blades

Granted: May 23, 2017
Patent Number: 9657588
A system for monitoring health of a rotor is presented. The system includes a processing subsystem that generates a measurement matrix based upon a plurality of resonant-frequency first delta times of arrival vectors corresponding to a blade and a first sensing device, and a plurality of resonant-frequency second delta times of arrival vectors corresponding to the blade and a second sensing device, generates a resonant matrix based upon the measurement matrix such that entries in the…

Damping system for a turbomachine slip ring

Granted: May 23, 2017
Patent Number: 9657591
A damping system for a turbomachine slip ring includes a slip ring assembly. The slip ring assembly includes a rotating component which is coupled at one end to a rotor shaft of the turbomachine and a stator component which circumferentially surrounds a rotatable center core portion of the rotating component. The system further includes a static structure which defines a carrier sleeve where the carrier sleeve circumferentially surrounds a portion of the stator component. The system also…

System and method for inspecting turbomachines

Granted: May 23, 2017
Patent Number: 9657597
A system for inspecting a turbomachine is provided. The system includes a pressure isolation system configured to maintain a pressure resistant seal around a probe. The pressure isolation system has a probe bearing located adjacent to a pressure seal. The probe bearing is configured to facilitate back and forth movement of the probe by reducing friction. A gimbal mount is connected to the pressure isolation system. The pressure isolation system has a valve seal located between the gimbal…

System for maintaining interior volume integrity in an induction vacuum furnace and method of making same

Granted: May 23, 2017
Patent Number: 9657992
An induction furnace for heating a workpiece includes a chamber and an insulation cylinder positioned therein, with the insulation cylinder including a base cover movable between first and second positions, and the first position positioning the workpiece within a heating zone and the second position positioning the workpiece within a cooling zone. A translation system in the furnace includes a first member coupled to the base cover of the insulation cylinder and extending through a wall…

Reduced airborne contamination detector heads

Granted: May 23, 2017
Patent Number: 9658086
A radiation detector head assembly is provided that includes a detector housing and a rotor assembly. The detector housing defines a cavity therein. The rotor assembly includes a detector unit, a body, and a sealing member. The body defines an opening oriented in the imaging direction. The body is disposed at a distance from the detector housing within the cavity defining a passageway extending axially along the body. The sealing member includes a body extending across the opening. The…

System and method for wind turbine operation

Granted: May 23, 2017
Patent Number: 9658124
A method for determining a flow condition includes disposing a plurality of sensors on a surface and receiving a first sensor signal and a second sensor signal from the plurality of sensors. The method further includes determining at least one correlation parameter based on the first sensor signal and the second sensor signal. The method also includes receiving a plurality of stored parameters from a database, wherein each of the plurality of stored parameters is representative of a…

Sensor systems for measuring an interface level in a multi-phase fluid composition

Granted: May 23, 2017
Patent Number: 9658178
A sensor includes a resonant transducer, the resonant transducer being configured to determine the composition of an emulsion. The composition of the emulsion is determined by measuring the complex impedance spectrum values of the mixture of the emulsion and applying multivariate data analysis to the values.

Rolling phased array ultrasonic scanner

Granted: May 23, 2017
Patent Number: 9658193
A rolling ultrasonic scanner comprises a member having an inspection surface for rolling across the surface of an object under test. A plurality of ultrasonic transducers are disposed within the member in a formation such that they are each aimed at a common point that is coincident with the surface of the object.

Digital X-ray detector having multi-tap pixels

Granted: May 23, 2017
Patent Number: 9658347
A digital X-ray detector is provided. The digital X-ray detector includes multiple pixels, each pixel including a pinned photodiode, and multiple readout channels coupled to each pinned photodiode, wherein each readout channel includes at least one charge-storage capacitor, an amplifier, and a transfer gate. The digital X-ray detector also includes control circuitry coupled to each pixel of the multiple pixels and configured to selectively control a flow of photocharge generated by each…

Lighting system with improved illumination distribution

Granted: May 23, 2017
Patent Number: 9658385
Optically patterned waveguides and systems employing optically patterned waveguides are provided. The optically patterned waveguide is configured for use in a lighting system and arranged perpendicular to an overhead structure, such as a ceiling. The optically patterned waveguide includes major surfaces that are patterned with a plurality of elongated facets formed into the major surfaces and extending in a direction parallel to the length of the waveguide. The optically patterned…

Direct current power distribution and protection system

Granted: May 23, 2017
Patent Number: 9660439
A direct current power (DC) distribution system includes a plurality of DC power sources, a ring bus, a plurality of switch assemblies, and a plurality of passive protection assemblies. Each DC power source is coupled to the ring bus by a respective switch assembly and a respective passive protection assembly.