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General Electric Company Patents
Assignee:
General Electric Company
Address:
New York, NY
No. of patents:
32317
Patents:












Patent Number Title Of Patent Date Issued
T969009 Transfer of magnetic toner particles with a directed magnetic field April 4, 1978
magnetic toner images are transferred from a latent magnetic image on a magnetic recording surface to hard copy medium, which may be paper, by (1) disposing the hard copy medium in contact with a toner image; and (2) applying a transfer magnetic field in the region of contact. The transf
T955007 Method and apparatus for metering apparent energy February 1, 1977
Metering kVA and kVAh in an electrical system is accomplished by generating pairs of analog signals representing current and voltage variables. Each of the analog signals is synchronously rectified to provide a pair of full-wave rectified signals which are multiplied together in a pulse-
RE42370 Reduced shock transonic airfoil May 17, 2011
A transonic turbine blade. Expansion waves are generated by a lifting surface on the blade. The expansion waves extend downstream, through a shock generated at the trailing edge of an adjacent blade. The invention increases the strength of the shock, thereby attenuating the expansion
RE41740 Multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography September 21, 2010
A multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography ("CT") profiles. The systems and methods of the present invention improving the temporal resolution of a CT system by checking for Z location errors between sectors and automatically bac
RE41673 Micro electromechanical system controlled organic LED and pixel arrays and method of using and o September 14, 2010
Organic light emitting devices are disclosed that use a micro electromechanical system (MEMS) structure to enable a pixel and pixel array wherein each pixel contains a MEMS and an OLED element. A MEMS structure is used for switching the OLED element. These OLED/MEMS pixels can be fab
RE41326 Reinforced hub for the rotor of a wind energy turbine May 11, 2010
The hub for the rotor (22) of a wind energy turbine (10) comprises a hollow body (28) rotatable around a rotation axis and provided with at least one flange (34) for mounting to the hollow body (28) a bearing for a rotor blade (26) and at least two stiffening webs (38) integrally for
RE41229 Methods and apparatus for regulating gas turbine engine fluid flow April 20, 2010
A method enables a gas turbine engine to be operated. The method includes directing fluid flow from a source into an inlet of a valve, channeling the fluid flow entering an inlet portion of the valve towards an outlet portion of the valve such that a direction of the fluid flow is change
RE40658 Methods and apparatus for cooling gas turbine nozzles March 10, 2009
A method for assembling a turbine nozzle for a gas turbine engine facilitates improving cooling efficiency of the turbine nozzle. The method includes providing a hollow doublet including a leading airfoil and a trailing airfoil coupled by at least one platform, wherein each airfoil i
RE40642 Reduced-power GPS-based system for tracking multiple objects from a central location February 17, 2009
Location of an object to be tracked is determined by measuring, at a receiver situated at the object, the propagation time differences between the signals from a plurality of GPS satellites, each of which is received by the receiver situated at the object. The measured propagation time
RE40607 Methods and apparatus for scout-based cardiac calcification scoring December 16, 2008
In one aspect, the present invention is a method for producing CT images of a patient's heart suitable for calcification scoring, in which the heart has a cardiac cycle. The method includes steps of acquiring data representative of a first scout-scanned CT image of physical locations of
RE40501 Nickel-base superalloys and articles formed therefrom September 16, 2008
An article, such as a turbine engine component, formed from a nickel-base superalloy, the nickel-base superalloy containing a .gamma.'' tetragonal phase and comprising aluminum, titanium, tantalum, niobium, chromium, molybdenum, and the balance nickel, wherein the article has a time
RE39650 Surface-active additives in the direct synthesis of trialkoxysilanes May 22, 2007
Disclosed is a process in which surface-active additives are used in the slurry phase Direct Synthesis of trialkoxysilanes to shorten the period between the start of the reaction and the attainment of steady-state rates and selectivities, to improve product yields and to control or p
RE39479 Durable turbine nozzle January 23, 2007
A turbine nozzle includes a plurality of vanes joined at opposite ends to outer and inner bands. The inner band has a forward hook which is segmented to reduce thermal mismatch. And, in additional embodiments the vane includes an impingement baffle having preferential cooling.
RE39398 Apparatus and methods for cooling slot step elimination November 14, 2006
An airfoil core die includes a tab for forming a continuous and smooth contour and extension of a first trailing edge slot recessed all to a bottom of the airfoil. The contour is formed on each airfoil core at injection and is maintained through to finish casting of the airfoil.
RE39320 Thermal barrier coating wrap for turbine airfoil October 3, 2006
An airfoil having extended life due to reduction in stresses. The stresses are reduced by extending the thermal barrier coating below the radius between the outer band perimeter and the inner flow path surfaces and tapering the coating thickness. This additional tapered thermal barrier
RE38995 Interfacial method of preparing ester-substituted diaryl carbonates February 28, 2006
High yields of ester-substituted diary carbonates such as bis-methyl salicyl carbonate were obtained by the condensation of methyl salicylate with phosgene in the presence of a phase transfer catalyst (PTC) in an interfacial reaction system in which the pH of the aqueous phase was gr
RE38530 Anti-static resin composition containing fluorinated phosphonium sulfonates June 8, 2004
An anti-static thermoplastic resin composition of 90-99.95 weight % of a thermoplastic resin and correspondingly 10 to 0.05 weight % of a halogenated carbon sulfonic acid salt of a polysubstituted phosphonium compound such as a fluorinated phosphonium sulfonate and wherein the thermo
RE37576 Single phase motor with positive torque parking positions March 12, 2002
A motor with positive torque parking positions. The motor includes a rotor which is rotatable about an axis of rotation and a stator in magnetic coupling relation with the rotor. The stator includes a plurality of teeth each having a radially extending shaft and an axially extending face
RE36454 Electrical propulsion systems for a vehicle December 21, 1999
A method and apparatus for preventing overspeed of an electrically powered .[.golf car.]. .Iadd.vehicle .Iaddend.having a shunt wound direct current electric motor with an armature winding and a field winding serially connected to respective switching devices and to a source of on-board
RE36188 Polymer mixture having aromatic polycarbonate styrene I containing copolymer and/or graft polyme April 6, 1999
The invention relates to a polymer mixture which comprises an aromatic polycarbonate, a styrene-containing copolymer and/or a styrene-containing graft polymer and a flame-retardant. It has been found that the use of a certain type of flame-retardants, namely oligomeric phosphates leads t
RE35855 Structured product dynamoelectric machine July 21, 1998
A structured product family of dynamoelectric machines for use in a plurality of applications has a frame with a closed end, and a set of permanent magnets is adhesively secured within the frame. An armature disposed in the frame for interaction with the permanent magnets includes a
RE35456 Fluoroscopic method with reduced x-ray dosage February 18, 1997
A method of fluoroscopically observing a living creature with reduced x-ray dosage is usable with a video monitor for displaying frames of image samples received during respective ones of frame scan intervals that regularly and successively occur at a display frame rate sufficiently high
RE35223 Cyclic aminoalkylsilanes and their use as adhesion promoters in room temperature vulcanizable po April 30, 1996
Cyclic aminoalkylsilane compositions are prepared by the reaction of approximately equimolar amounts of an aminoalkyltrialkoxysilane such as 3-aminopropyltrimethoxy-silane and a glycidyl ether such as methyl glycidyl ether. They are useful as adhesion promotors in room temperature vu
RE35178 Cyclic aminoalkylsilanes and their use as adhesion promoters in room temperature vulcanizable po March 12, 1996
Cyclic aminoalkylsilane compositions are prepared by the reaction of approximately equimolar amounts of an aminoalkyltrialkoxysilane such as 3-aminopropyltrimethoxysilane and a glycidyl ether such as methyl glycidyl ether. They are useful as adhesion promoters in room temperature vul
RE35124 Control system, electronically commutated motor system, draft inducer apparatus and method December 19, 1995
A control system and method for an electronically commutated motor having a stationary assembly with a plurality of winding stages for carrying a motor current in response to application of a voltage having a magnitude subject to variations, the motor further having a rotatable assembly.
RE35061 Dry low NO.sub.x hydrocarbon combustion apparatus October 17, 1995
A fuel with or without fuel bound nitrogen (FBN) is burned in a high pressure machine (20 atm) comprising fuel and air compressors, combustor and turbine at an ER of about 2-3 and temperature below the threshold for creating thermal NO.sub.x. Prompt and FBN NO.sub.x are avoided due to th
RE35059 Bis(4-hydroxyphenyl)cycloalkanes October 10, 1995
A heterocyclohexylidenebisphenol having the formula ##STR1## wherein X is S, SO.[.,.]. .Iadd.or .Iaddend.SO.sub.2 .[.or N--COR and R is a C.sub.1-4 primary or secondary alkyl or phenyl optionally substituted by an ethyl or 1-2 methyl groups.]. may be prepared by the reaction of pheno
RE34799 Reactive graft polymers November 22, 1994
Graft polymers are prepared by the free radical reaction of a base polymer such as polyethylene or polypropylene with an olefinic compound containing a tertiary alkyl ester group, which may be a simple carboxylic acid or a carbamic acid ester group. Upon melt blending or the like with po
RE34667 Stator and rotor lamination construction for a dynamo-electric machine July 19, 1994
A dynamo-electric machine includes a stator core fixed in a casing and formed of stator lamination plates, and a rotor supported in a bore of the stator core and formed of a stack of rotor lamination plates. Each stator lamination plate has a tooth portion extending radially outward from
RE34492 Combination lamp and integrating sphere for efficiently coupling radiant energy from a gas disch December 28, 1993
A .[.collimated.]. light source is provided which combines the functions of lamp and integrating sphere into one unit for efficiently coupling radiant energy from a gas discharge to a lightguide. The light source is electrodeless and comprises an integrating sphere coated with a ligh
RE34431 Macrocyclic oligomers containing spiro(bis)indane moieties November 2, 1993
Macrocyclic oligomers, including polycarbonates, polyesters, polyamides, polyimides, polyetherketones and polyethersulfones, are conveniently prepared from various spiro(bis)indane compounds, especially the 6,6'-difunctional 3,3',3'-tetramethylspiro(bis)indanes. The macrocyclic oligo
RE34415 Method for preparing carboxy functional silicones October 19, 1993
A novel method is provided for preparing carboxy functional silicones, comprising the steps of:(1) addition reacting a mixture of ingredients containing(A) an olefin-terminated organoacyloxysilane;(B) an organohydrogenpolysiloxane, and(C) a precious metal or a precious metal-containing catalyst,
RE34388 Method and apparatus for detecting stalls September 28, 1993
A gas turbine engine control system which receives an engine condition and generates a parameter signal representative of the condition. The control system also receives a temperature signal representative of the engine temperature downstream of the engine combustor. A comparator is used
RE34364 Polyphenylene ether-polyamide compositions from aryloxytriazine-capped polyphenylene ethers August 31, 1993
Aryloxytriazine-capped polyphenylene ethers are prepared by reaction of a polyphenylene ether with an aryloxychlorotriazine such as diphenyl chlorocyanurate. The products undergo reaction with amine-terminated polymers such as polyamides, to form compositions which have excellent pro
RE34318 Lighting systems employing optical fibers July 20, 1993
A lighting system particularly suite for aerodynamically styled automobiles and aircraft is disclosed. The lighting system emits light from a strip arranged across a vehicle such as the automobile. The lighting system may comprise various subsystems finding application for the high and l
RE34246 Thin walled channel May 11, 1993
In a channel contained fuel bundle for a boiling water nuclear reactor, an improved channel is disclosed. The channel contains a plurality of fuel rods held in spaced apart relation by at least upper and lower tie-plates and/or spacers. In the reactor, the channel contains fuel rods exte
RE34207 Counterrotating aircraft propulsor blades March 30, 1993
A propulsor blade for an aircraft engine includes an airfoil section formed in the shape of a scimitar. A metallic blade spar is interposed between opposed surfaces of the blade and is bonded to the surfaces to establish structural integrity of the blade. The metallic blade spar includes
RE34113 Weatherproof air conditioning disconnect switch October 27, 1992
A weather-tight air conditioning disconnect switch has both plastic and metal enclosure components for low cost assembly. The exterior components include a metal case and cover whereas the interior non-electrical components are plastic-molded. One such molded plastic dead-front shields
RE34107 Power transistor drive circuit with improved short circuit protection October 20, 1992
A gate drive circuit for an insulated gate bipolar transistor initially drives the gate to a first voltage potential which causes the transistor to partially turn on. A sensor detects when the transistor saturates at which point the gate drive voltage is increased to increase the con
RE33866 Resonant inverter employing frequency and phase modulation using optimal trajectory control March 31, 1992
A series resonant inverter is controlled to provide a substantially constant output voltage to a load. The control utilizes a combination of optimal control methods and phase modulation to enable time optimal responses to changes in state of the system. State determinants (including
RE33829 Redundant conductor structures for thin film FET driven liquid crystal displays February 25, 1992
Redundancy is provided in the data and gate lines of the liquid crystal display device for improved reliability and greater fabrication yield. The data lines in particular are preferably fabricated in a multilayer structure with two conductive layers sandwiching a narrow insulating s
RE33818 Axially shaped channel and integral flow trippers February 11, 1992
An improved channel is disclosed which has a reduced average thickness in its upper portion. The lesser average thickness corresponds to a lower pressure difference acting on the channel sides, over the upper portion of the channel. The reduction in average thickness is accomplished by c
RE33691 Piezoelectric ceramic switching devices and systems and method of making the same September 17, 1991
Improved piezoelectric ceramic switching devices are described along with their .[.method.]. .Iadd.methods .Iaddend.of fabrication. In addition to the devices themselves, novel electric circuits are described for the energization as well as the use of such devices as switching elements i
RE33655 Laundry machine drive August 6, 1991
A drive for a laundry machine having a means for agitating water and fabrics to launder the fabrics and for spinnning the fabrics to effect centrifugal displacement of water from the fabrics. An electronically commutated motor energized from a DC power source for driving the agitatin
RE33618 Method for initially polarizing and centering a piezoelectric ceramic switching device June 25, 1991
Improved piezoelectric ceramic switching devices are described along with their .[.method.]. .Iadd.methods .Iaddend.of fabrication. In addition to the devices themselves, novel electric circuits are described for the energization as well as the use of such devices as switching elements i
RE33587 Method for (prepolarizing and centering) operating a piezoceramic power switching device May 14, 1991
This application describes a number of novel advanced piezoelectric ceramic power switching devices which are mounted within protective gastight enclosures that are either evacuated to a high degree of vacuum or filled with an inert gas protective atmosphere. The devices thus constructed
RE33577 Advanced piezoceramic power switching devices employing protective gastight enclosure and method April 23, 1991
This application described a number of novel advanced piezoelectric ceramic power switching devices which are mounted within protective gastight enclosures that are either evacuated to a high degree of vacuum or filled with an inert gas protective atmosphere. The devices thus constructed
RE33568 Piezoelectric ceramic switching devices and systems and methods of making the same April 9, 1991
Improved piezoelectric ceramic switching devices are described along with their .[.method.]. .Iadd.methods .Iaddend.of fabrication. In addition to the devices themselves, novel electric circuits are described for the energization as well as the use of such devices as switching elements i
RE33452 Method for making alkylhalosilanes November 20, 1990
A method is provided for making alkylhalosilanes by effecting reaction between an alkyl halide, such as methyl chloride and powdered silicon in the presence of a copper-zinc-tin catalyst. Significant improvements in reaction rate and product selectivity are achieved when copper is employ
RE33289 Transparent membrane structures August 7, 1990
A dirt resistant silicone coating composition comprising:(1) a base vinyl chainstopped polysiloxane,(2) a resinous organopolysiloxane copolymer,(3) a platinum catalyst and,(4) a liquid organohydrogenpolysiloxane crosslinking agent.

 
 
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