| Patent application number | Description | Published |
|---|
| 20080216303 | METHOD OF APPLYING OUTER INSULATION TO A BARE STATOR BAR - A method of applying an outer insulation to a bare stator bar to form an insulated stator bar. The method entails extruding at least one extruded member that will form the outer insulation. The extruded member has an opposing pair of edges that are parallel to the longitudinal length of the extruded member. In addition, the extrusion process creates an inner cavity that extends the longitudinal length of the extruded member. A bare stator bar is then inserted into the inner cavity of the outer insulation so that the outer insulation surrounds the perimeter of the bar and extends along a longitudinal length thereof. The opposing pair of edges of the extruded member are then attached together so that the perimeter of the bar is entirely enclosed by the extruded member. | 09-11-2008 |
| 20080218008 | Rotor and Stator Assemblies that Utilize Magnetic Bearings for Use in Corrosive Environments - Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shall during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes the use of barrier layers disposed on selected exposed surfaces of the rotor shaft assembly and/or stator assembly. Also disclosed are processes for forming encapsulated stators that exhibit improved corrosion resistance, as well as corrosion resistant materials for backup bearing races and landing sleeves. | 09-11-2008 |
| 20080219834 | Rotor Shaft Assembly for Magnetic Bearings for Use in Corrosive Environments - Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. In one embodiment, a rotor shaft assembly for a magnetic bearing arrangement comprises a rotor shaft formed of a ferromagnetic material comprising a plurality of rotor laminations disposed on the rotor shaft; and a barrier layer formed on selected exposed surfaces of the rotor shaft, wherein the barrier layer is effective to resist corrosion relative to the surface without the barrier layer. | 09-11-2008 |
| 20080293864 | NONLINEAR POLYMER COMPOSITES AND METHODS OF MAKING THE SAME - A nonlinear composition comprises a polymeric material and at least one ferroelectric, antiferroelectric, or paraelectric particle, wherein the composition has a permittivity greater than or equal to about 5. A method of making a nonlinear composition comprises combining a polymeric material, and at least one ferroelectric, antiferroelectric, or paraelectric particle. The composition has a permittivity greater than or equal to about 5. | 11-27-2008 |
| 20090045544 | METHOD FOR MANUFACTURING ULTRA-THIN POLYMERIC FILMS - A method for manufacturing an ultra-thin polymeric film is disclosed. The method includes the steps of melt blending of a polymeric composition or a nanocomposite composition in an extruder. Next, the molten composition is conveyed through a flat die with a small die lip gap. A melt pump may also be used to provide a constant, non-pulsating flow of the melted composition through the die. The melted composition may be passed through a filtration device to remove contaminants that could adversely affect the dielectric performance of the film. Next, the film is stretched by passing the film through take-up rollers at relatively high take-up speeds. Then, the composition is cooled to form a film or sheet. The edges of the film may be trimmed, and the film wound up on a roll using a tension-controlled winding mechanism. A heated roll may be used to temper/anneal the film, thereby eliminating frozen-in internal stresses. | 02-19-2009 |
| 20090101873 | ELECTROMAGNETIC INTERFERENCE SHIELDING POLYMER COMPOSITES AND METHODS OF MANUFACTURE - An electromagnetic interference shielding composite is provided. The electromagnetic interference shielding composite comprises: a high permittivity polymer having a permittivity of at least about 5; a plurality of magnetic particles dispersed within the high permittivity polymer; and a plurality of dielectric particles dispersed within the high permittivity polymer. In another embodiment, an article comprising a device susceptible to electromagnetic radiation and a shielding material disposed to shield the device from electromagnetic radiation is provided. The shielding material comprises, a high permittivity polymer; a plurality of magnetic particles dispersed within the high permittivity polymer; and plurality of dielectric particles dispersed within the high permittivity polymer. | 04-23-2009 |
| 20090140833 | ELECTRONIC DEVICE AND METHOD - An article is provided that includes a plurality of layers. Each layer includes a sinterable mass having a sinter temperature that is less than about 1000 degrees Celsius, and an inner electrode proximate to the sinterable mass. The inner electrode includes a material having a melting point that is within a determined temperature range of about 10 degrees Celsius to about 200 degrees Celsius relative to the sintering temperature. A method to make the article is also provided. | 06-04-2009 |
| 20090142580 | ELECTRONIC DEVICE AND METHOD - A varistor pre-assembly includes an electrode formable structure and a sinterable mass proximate to electrode formable structure. The electrode formable structure includes a material having a melting point that may be within a determined temperature relative to a sintering temperature of the sinterable mass. The electrode formable structure and sinterable mass may form a varistor when simultaneously subjected to the sintering temperature, which may be less than about 1000 degrees Celsius. A method to make the article is also provided. | 06-04-2009 |
| 20090143216 | COMPOSITION AND METHOD - A composition includes a sintered mass having a plurality of cores and a grain boundary layer disposed between each of the plurality of cores. The core includes a transition metal oxide, and grain boundary layer includes a sintering additive, a grain growth inhibitor additive and a grain boundary additive. | 06-04-2009 |
| 20090154056 | Low inductance capacitor and method of manufacturing same - A film capacitor includes metallization that is sectionalized, patterned and configured to provide interconnections on only one face of a rolled or stacked film capacitor. | 06-18-2009 |
| 20090182088 | Composite coatings for groundwall insulation, method of manufacture thereof and articles derived therefrom - Disclosed herein is an article comprising an electrical component; and an electrically insulating layer disposed upon the electrical component, wherein the electrically insulating layer comprises a thermosetting polymer and a nanosized filler; wherein the nanosized filler comprises metal oxide and diamond nanoparticles that have an average largest dimension of less than or equal to about 200 nanometers. | 07-16-2009 |
| 20090269488 | VARNISH COMPOSITIONS FOR ELECTRICAL INSULATION AND METHOD OF USING THE SAME - A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition includes a functionalized poly(phenylene ether) having at least one aliphatic unsaturated group and exhibiting an intrinsic viscosity in the range of about 0.06 to about 0.25 deciliter per gram, measured in chloroform at 25° C. The varnish composition further includes an unsaturated polyester resin or vinyl ester resin, a reactive liquid monomer, and a compatibilizing agent. When cured, the polymers and reactive liquid monomer form an electrically insulative thermoset. | 10-29-2009 |
| 20090309259 | HIGH TEMPERATURE POLYMER COMPOSITES COMPRISING ANTIFERROELECTRIC PARTICLES AND METHODS OF MAKING THE SAME - A composition comprises a modified polymeric material and a ceramic antiferroelectric particle. The modified polymeric material comprises a high temperature polymer; and a second polymer. The composition has a permittivity greater than or equal to about 10. A method of making a composition comprises combining a high temperature polymer with a second polymer to form a modified polymeric material; and combining the modified polymeric material with antiferroelectric particles to form a composite composition; wherein the composition has a permittivity greater than or equal to about 10. | 12-17-2009 |
| 20090312474 | HIGH TEMPERATURE POLYMER COMPOSITES AND METHODS OF MAKING THE SAME - A composition comprises a modified polymeric material and a ceramic antiferroelectric particle. The modified polymeric material comprises a high temperature polymer chemically combined with a polar group. A method of making a composition comprises chemically combining a high temperature polymer with a polar group to form a modified polymeric material; and combining the modified polymeric material with antiferroelectric particles to form a composite composition. | 12-17-2009 |
| 20100020468 | HIGH TEMPERATURE FILM CAPACITOR - A capacitor comprises a substrate layer, a first electrode layer disposed on the substrate layer, and a first dielectric layer disposed on the electrode layer. The dielectric layer comprises a polymeric material having an elongation less than or equal to about 5 percent. | 01-28-2010 |
| 20100079926 | FILM CAPACITOR - A capacitor comprises a substrate layer, a first electrode layer disposed on the substrate layer, and a first dielectric layer disposed on the electrode layer. The dielectric layer comprises inorganic ferroelectric or antiferroelectric particles, and a polymeric material having an elongation less than or equal to about 5 percent. | 04-01-2010 |
| 20100080892 | VARNISH COMPOSITIONS FOR ELECTRICAL INSULATION AND METHOD OF USING THE SAME - A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition comprises a functionalized poly(phenylene ether), an unsaturated polyester, and/or a vinylester resin. The varnish composition further comprises a reactive liquid monomer and a block copolymer comprising a poly(olefin) block, or a poly(diolefin) block, and at least one terminal poly(alkenyl aromatic) block comprising repeat units derived from an alkenyl aromatic monomer. When cured, the polymers and reactive liquid monomer forms an electrically insulative thermoset that provides superior crack resistance. | 04-01-2010 |
| 20100240804 | IN-SITU POLYMERIZED NANOCOMPOSITES - Disclosed herein is a method of making a polymer composite composition comprising blending a polymeric material precursor with nanoparticles, wherein each nanoparticle comprises a substrate and a coating composition disposed on the substrate; and polymerizing the polymeric material precursor to form a polymeric material, wherein the nanoparticles are dispersed within the polymeric material to form a polymer composition. | 09-23-2010 |
| 20100244585 | HIGH-TEMPERATURE CAPACITORS AND METHODS OF MAKING THE SAME - High-temperature, multiple-layer polymer (MLP) capacitors with a stacked electrode arrangement are disclosed. The capacitor electrodes are separated by a polymer dielectric that is stable at high temperatures. In some embodiments, the polymer dielectric also has a high permittivity and is filled with high-permittivity nanoparticles, which enables the capacitor to achieve a very high capacitance density. | 09-30-2010 |
| 20100246094 | METHODS FOR IMPROVING THE DIELECTRIC PROPERTIES OF A POLYMER, AND RELATED ARTICLES AND DEVICES - In one aspect of the present invention, a method for increasing the dielectric breakdown strength of a polymer is described. The method comprises providing the polymer and contacting a surface of the polymer in a reaction chamber with a gas plasma, under specified plasma conditions. The polymer is selected from the group consisting of a polymer having a glass transition temperature of at least about 150° C., and a polymer composite comprising at least one inorganic constituent. The contact with the gas plasma is carried out for a period of time sufficient to incorporate additional chemical functionality into a surface region of the polymer film, to provide a treated polymer. Also provided are an article and method of manufacture. | 09-30-2010 |
| 20100259865 | FILM CAPACITORS WITH IMPROVED DIELECTRIC STRENGTH BREAKDOWN - A film capacitor including a first electrode is provided. The film capacitor also includes a first dielectric layer having a first dielectric constant disposed upon a first electrode, a second dielectric layer having a second dielectric constant disposed upon the first dielectric layer, wherein the second dielectric constant is at least fifty percent greater than the first dielectric constant, and a metalized film disposed upon the second dielectric layer. It further includes a second electrode disposed upon the metalized film. | 10-14-2010 |
| 20100302707 | COMPOSITE STRUCTURES FOR HIGH ENERGY-DENSITY CAPACITORS AND OTHER DEVICES - In one aspect of the present invention, an article is described, including a polymer layer; and a composite layer disposed on the polymer layer. The composite layer includes a thermoplastic polymer, which contains at least one inorganic component having selected dimensions; wherein the largest dimension of the inorganic component is less than about 1 micrometer. The composite layer has a dielectric constant, which is at least about 30 percent greater than the dielectric constant of the polymer layer. The article has a breakdown strength of at least about 150 kV/mm. Related devices are also described. | 12-02-2010 |
| 20110008614 | Electrostatic Powder Coatings - In one embodiment, a protective coating may be electrostatically applied to a rotary machine component. The powder coating includes an electrically conductive sacrificial base coat and a ceramic oxide erosion resistant top coat. | 01-13-2011 |
| 20110075320 | Dielectric Film, Associated Article and Method - An article having a cyanoresin dielectric film is described. The cyanoresin dielectric film includes nanostructures of a toughening material. A method of forming such a cyanoresin dielectric film is also described. A capacitor having a cyanoresin dielectric film is presented. | 03-31-2011 |
