Ras
Anine Hester Ras, Springs ZA
Patent application number | Description | Published |
---|---|---|
20110132184 | Boron Carbide Composite Materials - The invention relates to a boron carbide composite material comprising diamond particles and boron carbide, the composite material having a porosity of less than 2 percent by volume. The invention further relates to a method for manufacturing such materials, the method including coating a plurality of diamond particles with boron carbide, combining the plurality of diamond particles to form a green body and subjecting the green body to a temperature in the range from about 1,200 degrees centigrade to about 2,000 degrees centigrade and pressure or vacuum not exceeding about 2,000 Mpa. | 06-09-2011 |
Anine Hester Ras, Johannesburg ZA
Patent application number | Description | Published |
---|---|---|
20100186303 | Polycrystalline Diamond Abrasive Element and Method of its Production - Polycrystalline diamond abrasive elements made by incorporating low levels of at least one metal boride, the metal being selected from magnesium, calcium, aluminium, strontium, yttrium, zirconium, hafnium and chromium, and the rare earth metals, particularly cerium and lanthanum. The benefits of adding boron to polycrystalline diamond abrasive compacts are exploited together with simultaneously minimising or eliminating the detrimental effects of the presence of oxygen. | 07-29-2010 |
Anine Hester Ras, Edenvale ZA
Patent application number | Description | Published |
---|---|---|
20090127136 | ELECTRODE - A diamond electrode comprises a polycrystalline mass of diamond particles bonded together and has a porous surface, or an at least partly porous surface. The porous surface of the electrode is typically created by leaching non-diamond material, such as a second phase of a metallic material, at least in part, from the bonded polycrystalline mass of diamond particles, either before or after shaping it into an electrode. Alternatively, or additionally, the porous surface of the electrode may be created by subjecting a mass of diamond particles to conditions of elevated temperature and pressure to self-bond the particles together in the absence of a second phase. | 05-21-2009 |
20090139150 | Method of Making a Modified Abrasive Compact - A method of treating the working surface of an abrasive compact having a working surface. The working surface, or a region adjacent the working surface, of the abrasive compact is contacted with a halogen gas or a gaseous environment containing a source of halide ions, preferably at a temperature at or below 800° C., in order to remove catalysing material and any foreign metal matrix material from the region adjacent the working surface. | 06-04-2009 |
Arnoldus Johannes Martinus Jozeph Ras, Eindhoven NL
Patent application number | Description | Published |
---|---|---|
20090046291 | DEVICE FOR IMAGING AN INTERIOR OF A TURBID MEDIUM - The invention relates to a device ( | 02-19-2009 |
Erik-Jan Ras, Amsterdam NL
Patent application number | Description | Published |
---|---|---|
20130023709 | CATALYSTS FOR PETROCHEMICAL CATALYSIS - Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. | 01-24-2013 |
20130165728 | NANOWIRE CATALYSTS AND METHODS FOR THEIR USE AND PREPARATION - Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the same are also disclosed. | 06-27-2013 |
20140121433 | CATALYTIC FORMS AND FORMULATIONS - Catalytic forms and formulations are provided. The catalytic forms and formulations are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane. Related methods for use and manufacture of the same are also disclosed. | 05-01-2014 |
20140274671 | CATALYSTS FOR PETROCHEMICAL CATALYSIS - Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. | 09-18-2014 |
20150073192 | CATALYSTS FOR PETROCHEMICAL CATALYSIS - Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. | 03-12-2015 |
20150087875 | NANOWIRE CATALYSTS AND METHODS FOR THEIR USE AND PREPARATION - Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the same are also disclosed. | 03-26-2015 |
Johan Ras, Foster City, CA US
Patent application number | Description | Published |
---|---|---|
20110210723 | Method of performing electrostatic discharge testing on a payment card - Methods of performing electrostatic discharge testing on a transaction card are disclosed. A transaction card may be placed on an insulated surface. A grounding probe may be placed at a first location on the transaction card. A discharge probe may be charged to a known voltage level. The discharge probe may then be discharged at a second location on the transaction card. A discharge wave shape may be recorded from the ground probe, and one of a pass condition and a fail condition may be assigned based on at least the value of the known voltage level as compared to a reference voltage level. The first location and the second location may each be selected from a plurality of areas on the transaction card. | 09-01-2011 |
Mauro Ras, Bibiana IT
Patent application number | Description | Published |
---|---|---|
20120200245 | BRUSHLESS DC MOTOR - A brushless DC motor having a plurality of electrical windings and a control circuit operatively connected thereto. The control circuit includes a plurality of switches configured for a time-dependent application of an electrical voltage from an external voltage supply to the windings. A measuring device is also provided for generating an electrical signal depending on the current flow I | 08-09-2012 |
Raman Ras, Painesville, OH US
Patent application number | Description | Published |
---|---|---|
20120145247 | FLEXIBLE HOSE ASSEMBLY WITH MULTIPLE FLOW PASSAGES - Provided is a flexible hose assembly having a flexible tube for conveying fuel through a first fuel passage formed interiorly of the flexible tube and a flexible hose surrounding the flexible tube and forming therewith a second fuel passage. The flexible tube provides internal support for the flexible hose while also allowing for flow of fuel through the second fuel passage and the fuel passages are separate from one another along a length of the flexible hose assembly. When one of the fuel passages is in a low flow or no flow condition, fuel flowing through the other of the fuel passages acts to cool the fuel passage in the low flow or no flow condition to prevent stagnant fuel in the passage from heating up and coking. | 06-14-2012 |
Raman Ras, North Charleston, SC US
Patent application number | Description | Published |
---|---|---|
20100095677 | PILOT NOZZLE HEAT SHIELD HAVING INTERNAL TURBULATORS - A pilot nozzle heat shield includes a body having a first end for receiving a pilot nozzle and a second end including a flow tip. The body includes a plurality of internal turbulators circumferentially disposed about the internal peripheral surface of the body. The flow tip includes a proximal periphery and a distal periphery. A plurality of flow ports are circumferentially spaced about the proximal periphery of the flow tip. The flow tip includes a plurality of slots. Each slot extends distally from one of the flow ports to the distal periphery of the flow tip, which defines an aperture. The plurality of slots define a plurality of tangs; each tang is defined between a pair of neighboring slots. A plurality of turbulators can be disposed about the inner peripheral surface of the heat shield body at the tangs. | 04-22-2010 |
Raman Ras, Concord, OH US
Patent application number | Description | Published |
---|---|---|
20120258409 | DISTRIBUTED INJECTION WITH FUEL FLEXIBLE MICRO-MIXING INJECTORS - Provided is an injector having a plurality of micro-mixing nozzles having axes thereof pointing radially inwardly or outwardly with respect to a main axis of the injector and a plurality of micro-mixing nozzles having axes thereof extending axially with respect to the main axis of the injector. The arrangement of micro-mixing nozzles provides a means for fast and efficient mixing of fuels, such as highly reactive fuels including hydrogen. The arrangement of micro-mixing nozzles also achieves low NOx emissions. | 10-11-2012 |
Robin Ras, Espoo FI
Patent application number | Description | Published |
---|---|---|
20140130710 | HYDROPHOBIC COATING AND A METHOD FOR PRODUCING HYDROPHOBIC SURFACE - A method for producing a superhydrophobic surface, which includes cellulosic material. The cellulosic material includes nanocellulose particles and the method includes adding the nanocellulose particles to a surface and hydrophobizing the nanocellulose particles with a modifier before, during and/or after the addition of the particles. The invention further relates to a hydrophobic coating. | 05-15-2014 |
Robin H.a. Ras, Espoo FI
Patent application number | Description | Published |
---|---|---|
20120249375 | Magnetically controlled polymer nanocomposite material and methods for applying and curing same, and nanomagnetic composite for RF applications - A material contains a curable liquid polymer containing suspended nanoparticles capable of exhibiting a magnetic property. The nanoparticles are present in a concentration sufficient to cause the curable liquid polymer to flow in response to application of a magnetic field, enabling the material to be guided into narrow regions to completely fill such regions prior to the polymer being cured. A method includes applying a filler material to at least one component, the filler material including a heat curable polymer containing nanoparticles, and applying an electromagnetic field to at least part of the filler material. The nanoparticles contain a core capable of experiencing localized heating sufficient to at least partially cure surrounding polymer. Also disclosed is an assembly for use at radio frequencies. The assembly includes a substrate and at least one component supported by the substrate. The substrate contains a thermoplastic or thermoset polymer with suspended nanoparticles capable of exhibiting a magnetic property. The nanoparticles are of a type and have a concentration in the polymer selected to provide a certain dielectric permittivity, magnetic permeability and dissipation factor. | 10-04-2012 |
20120300282 | Apparatus and Associated Methods - In one or more embodiments described herein, there is provided an apparatus including a support layer, a plurality of pixels, and a switch. The pixels are formed using an arrangement of respective liquid-phobic elements disposed on the support layer. The arrangement of the liquid-phobic elements is configured so as to be able to provide, when interacting with a liquid on the support layer, one or more associated plastron regions to provide a first pixel optical state. The switch is configured to be able to selectively modify one or more of said associated plastron regions to provide a second pixel optical state. | 11-29-2012 |