| 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- |
| 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. |
| RE33279 |
Method for rapid acquisition of NMR data |
July 31, 1990 |
| A method for rapid acquisition of NMR data utilizes excitation pulses which rotate the longitudinal magnetization through an angle smaller than 90.degree. to create a relatively large transverse magnetization component. A first 180.degree. RF pulse is then applied to create a spin-ec |
| RE32984 |
Optical pattern generation technique |
July 11, 1989 |
| A rotatable drum is arranged around a surface lying generally parallel to the axis of rotation, a plurality of bar code patterns, the individual bars making up each pattern extending normal to the rotational axis. A light beam in a plane is projected onto the surface, the plane lying |
| RE32712 |
Moving gradient zeugmatography |
July 12, 1988 |
| Nuclear magnetic resonance phenomena are employed to generate a two dimensional image of a thin planar slice through a body under investigation. The apparatus herein operates to determine the spin density distribution in a planar slab within the body which typically comprises a biolo |
| RE32685 |
Double flow reheat diaphragm |
May 31, 1988 |
| In a double flow section of a steam turbine, the inner web of the diaphragm surrounding the rotor shaft in the region of divergence of the steam flow paths, is fabricated in the form of two cylindrical shells which are held together either in a fixed position or in a relatively fixed pos |
| RE32406 |
Impact resistant soft coated laminates and process for making the same |
April 21, 1987 |
| Improved impact or shock resistant soft coated laminates including a back polycarbonate lamina opposite the direction of impact or shock, such polycarbonate lamina having a soft overlying or exposed layer or coating opposite the direction of impact, are provided. The laminates exhibit |
| RE32380 |
Diamond tools for machining |
March 24, 1987 |
| Diamond tools and superpressure processes for the preparation thereof are described wherein the diamond content is present either in the form of a mass comprising diamond crystals bonded to each other or of a thin skin of diamond crystals bonded to each other. In each instance the diamon |
| RE32245 |
Multi-component solventless silicone release coating system |
September 9, 1986 |
| The present invention provides a method for preparing a precious metal catalyzed, heat curable silicon release coating composition. Also, there is provided an article of manufacture for packaging the ingredients necessary to practice the method of the invention. |
| RE32238 |
Turbine arrangement |
September 2, 1986 |
| A turbine arrangement for a gas turbine engine having a sloped gas flowpath through the turbine. The radial axes of the rotor blades and stator vanes in the sloped flowpath are tilted such that the axes are substantially normal to the mean flow streamline of the gases. This arrangement r |
| RE32093 |
Aluminum oxide coated titanium-containing cemented carbide product |
March 18, 1986 |
| A high-strength, coated cemented carbide product comprising a cemented carbide substrate and a fully dense alpha aluminum oxide coating on the substrate. The coating has a thickness of from 1-20 microns and is firmly and adherently bonded to the cemented carbide substrate through a thin |
