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| 20150053402 | FIBER PASTE AND METHODS FOR TREATING A SUBTERRANEAN FORMATION WITH THE FIBER PASTE - Methods of treating a subterranean formation are disclosed that include contacting a paste including a liquid chemical and a lightweight fiber having a high aspect ratio with a treatment fluid, and placing the treatment fluid into a subterranean formation. Also disclosed is an additive for treating a subterranean formation comprising a paste including a liquid chemical and a lightweight fiber having a high aspect ratio. | 02-26-2015 |
| 20150075796 | WELLSITE HANDLING SYSTEM FOR PACKAGED WELLSITE MATERIALS AND METHOD OF USING SAME - Systems and methods for handling wellsite packets for a wellsite are provided. The wellsite packets include soluble packaging with wellsite materials therein. The wellsite has surface equipment and downhole equipment positioned about a wellbore. The handling system includes at least one feeder, at least one mixer, at least one metering device, and a pump. The feeder moves the wellsite packets directly or indirectly into the mixer. The mixer stimulates dissolution of the soluble packaging so as to mix the wellsite materials with a fluid to form a wellsite mixture. The metering device selectively controls the number of wellsite packets moving to the mixer. The pump is operatively coupled to the mixer to pump the wellsite mixture at the wellsite. | 03-19-2015 |
| 20150192006 | SYSTEM AND METHOD FOR PREPARING A TREATMENT FLUID - A system and method are disclosed for preparing a treatment fluid and includes charging packets containing an additive encased within a liner to a first container packet storage area of a first container; passing the packets to a packet shredder; breaching the liners of the packets to expose the additive; passing exposed additive to a mixer; passing an aqueous solution to the mixer from a second container; and mixing the exposed additive with the aqueous solution to form the treatment fluid. The first container can also include a first container proppant storage area, and proppant is passed from the first container proppant storage area to the mixer. The treatment fluid can be charged to a well bore penetrating a subterranean formation. The system and method can also include a silo positioned in fluid flow communication with the first container and partitioned into a silo packet storage area and a silo proppant storage area. | 07-09-2015 |
| 20150238914 | INTEGRATED PROCESS DELIVERY AT WELLSITE - A mixing unit comprising a frame, a rheology control portion, and a high-volume solids blending portion. The rheology control portion comprises means for receiving a first material from a first transfer mechanism, a dispersing/mixing system connected with the frame, and a first metering system to meter the first material from the first material receiving means to the dispersing/mixing system. The dispersing/mixing system disperses/mixes the metered first material with a fluid to form a first fluid mixture. The high-volume solids blending portion comprises means for receiving a second material from a second transfer mechanism, a solids blending system connected with the frame, and a second metering system to meter the second material from the second material receiving means to the solids blending system. The solids blending system blends the metered second material with the first fluid mixture to form a second fluid mixture. | 08-27-2015 |
| 20150252660 | FIBER AGGLOMERATION SYSTEM AND METHOD - A method is provided of adding material to an oilfield application in which a material is agglomerated into a compacted volume. The compacted volume is delivered into a processing system to produce a dispersed material. The dispersed material is used to perform the oilfield application. | 09-10-2015 |
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| 20110220183 | PHOTOVOLTAIC DEVICE - The present invention is premised upon an improved photovoltaic device (“PV device”), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region. | 09-15-2011 |
| 20130084716 | SYSTEM AND CONNECTOR CONFIGURED FOR MACRO MOTION - A connector system is configured for macro motion. Two mating terminals are configured so that during macro motion cycles, the resistance between two terminals does not substantially increase. One terminal can have multiple, somewhat spherical-shaped mating surfaces while a mating surface on the other terminal can be flat. The mating terminals can be configured to provide desirable resistance performance after more than 5000 cycles of macro motion. | 04-04-2013 |
| 20130122616 | THIN FILM SOLAR CELL PROCESSING AND TESTING METHOD AND EQUIPMENT - A method of providing a plurality of classified photovoltaic articles, including the steps of providing a first photo-voltaic element that includes a plurality of photovoltaic articles on a continuous flexible substrate, forming a electrically insulating material on the first photovoltaic element at one or more predetermined locations, separating adjacent photovoltaic articles from each other, determining an efficiency of each photovoltaic article by measuring its current-voltage characteristics, and classifying each photovoltaic article according to its efficiency. | 05-16-2013 |
| 20130122639 | AUTOMATED ASSEMBLY METHOD FOR THE PRODUCTION OF INTERCONNECTED THIN FILM SOLAR CELL MODULES - A method of manufacturing electrically interconnected solar cell assemblies, including the steps of: positioning at least a first interconnect element ( | 05-16-2013 |
| 20130167910 | PHOTOVOLTAIC CELL ASSEMBLY AND METHOD - The present invention provides an improved photovoltaic cell assembly ( | 07-04-2013 |
| 20130170149 | CONNECTOR AND ELECTRONIC CIRCUIT ASSEMBLY FOR IMPROVED WET INSULATION RESISTANCE - The present invention is premised upon a connector and electronic circuit assembly ( | 07-04-2013 |
| 20130233385 | PHOTOVOLTAIC DEVICE - The present invention is premised upon an improved photovoltaic device (“PV device”), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof. | 09-12-2013 |
| 20130247986 | PHOTOVOLTAIC DEVICE - The present invention is premised upon an improved photovoltaic device (“PV device”), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof. | 09-26-2013 |
| 20130247988 | PHOTOVOLTAIC DEVICE - The present invention is premised upon an improved photovoltaic device (“PV device”), more particularly to an improved photovoltaic device ( | 09-26-2013 |
| 20130321013 | PHOTOVOLTAIC DEVICE FOR MEASURING IRRADIANCE AND TEMPERATURE - A solar array system includes a plurality of power-generator modules, each power-generator module having an identical form factor and comprising a plurality of photovoltaic cells wired for power generation. The system also includes at least one sensor module having a substantially identical appearance and form factor as the power-generator modules and comprising a like plurality of photovoltaic cells. The operational state of the system is monitored by an array performance monitor, which measures signals sent from the various modules. At least one photovoltaic cell in the sensor module delivers a short-circuit current signal to the array performance monitor and at least one photovoltaic cell in the sensor module delivers an open-circuit voltage signal to the array performance monitor. These signals are used to calculate a theoretical power output of the array system, which is compared to the actual power output. | 12-05-2013 |
| 20150207009 | PHOTOVOLTAIC SYSTEM WITH STACKED SPECTRUM SPLITTING OPTICS AND PHOTOVOLTAIC ARRAY TUNED TO THE RESULTING SPECTRAL SLICES PRODUCED BY THE SPECTRUM SPLITTING OPTICS - The present invention provides photovoltaic devices that comprise multiple bandgap cell arrays in combination with spectrum splitting optics. The spectrum splitting optics include one or more optical spectrum splitting modules that include two or more optical splitting, diffractive elements that are optically in series to successively and diffractively split incident light into segments or slices that are independently directed onto different photovoltaic cell(s) of the array having appropriate bandgap characteristics. | 07-23-2015 |
| 20150221800 | SPECTRAL LIGHT SPLITTING MODULE AND PHOTOVOLTAIC SYSTEM INCLUDING CONCENTRATOR OPTICS - A light splitting optical module that converts incident light into electrical energy, the module including a solid optical element comprising an input end for receiving light, a first side, and a second side spaced from the first side, a first solar cell adjacent to the first side of the solid optical element, and a second solar cell adjacent to the second side of the solid optical element. The first solar cell is positioned to absorb a first subset of incident light and reflect a first remainder of the incident light to the second solar cell through the solid optical element. | 08-06-2015 |
| 20150263665 | PHOTOVOLTAIC DEVICE - The present invention is premised upon an improved photovoltaic device (“PV device”), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof. | 09-17-2015 |
| 20150287842 | PHOTOVOLTAIC SYSTEM INCLUDING LIGHT TRAPPING FILTERED OPTICAL MODULE - A photovoltaic system that converts incident light into electrical energy that includes a light trapping optical module having a light randomizing dielectric slab with a first surface and a second surface, a first cell adjacent to the first surface of the slab that has a bandgap of lower energy than the energy of absorption onset of the dielectric slab, at least one filter element in optical contact with the second surface of the dielectric slab, and a sub-cell array with a plurality of photovoltaic sub-cells, wherein at least one of the sub-cells has a first surface that is in optical contact with the at least one filter element. | 10-08-2015 |
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| 20080262196 | APPARATUS AND METHOD OF SEPARATING A POLYMER FROM A SOLVENT - The present invention relates to various embodiments of a system and method for separating polymer from a solvent. In one embodiment a system for separating polymer from a solvent comprises an extrusion apparatus includes a hollow member having a first end portion, a second end portion, and a feed port between the first end portion and the second end portion. The extrusion apparatus includes a back flash vent port disposed upstream of the feed port and a forward flash vent port disposed downstream of the feed port. The extrusion apparatus further includes a vent insert located at the forward flash vent port, a screw disposed inside the hollow member, and an internal superheating section disposed between the feed port and the downstream vent opening of the hollow member such that the length of the internal superheating section is greater than about four times the diameter, 4D, of the hollow member. | 10-23-2008 |
| 20090247725 | Methods for Preparing Oxydiphthalic Anhydrides, Oxydiphthalic Anhydrides Prepared Thereby, and Polyetherimides Derived Therefrom - a method for preparing an oxydiphthalic anhydride comprises contacting, under reactive and substantially anhydrous conditions in a reactor, at least one halophthalic anhydride containing more than 250 ppm chlorophthalide impurity with a carbonate of the formula M | 10-01-2009 |
| 20090247727 | Method of Purifying Dianhydrides, the Dianhydrides Formed Thereby, and Polyetherimides Formed Therefrom - A method for purifying an oxydiphthalic anhydride comprises diluting a first mixture comprising an oxydiphthalic anhydride, a solvent, a catalyst, and an inorganic salt with a solvent, to provide a second mixture having a solids content of 10 to 30 percent based on total weight of the second mixture; filtering and washing the solids of the second mixture at a temperature below the crystallization point temperature of the oxydiphthalic anhydride to provide a third mixture; hydrolyzing the third mixture by adding water and a water-soluble acid to form a fourth mixture; heating the fourth mixture; then cooling to provide a solid-liquid mixture, optionally decanting a portion of the liquid, rediluting the remaining solid-liquid mixture, then filtering to provide a solid component; washing the solid component with water to provide a fifth mixture of oxydiphthalic tetraacid and water; ring closing the oxydiphthalic tetraacid to provide oxydiphthalic anhydride, and filtering the oxydiphthalic anhydride. | 10-01-2009 |
| 20100160578 | PROCESS FOR CONTROLLING REACTION STOICHIOMETRY DURING POLYMERIZATION OF THERMOPLASTIC RESINS - The present invention provides a process for measuring and controlling chemical reactions that produce thermoplastic polymers by utilizing a stoichiometry correction during a reaction cycle to produce thermoplastic resins with desired properties. The thermoplastic polymer is made from at least one first monomer having a first reactive end group and at least one second monomer having a second reactive end group by reaction of the first reactive end group with the second reactive end group and has a glass transition temperature of greater than 130° C. | 06-24-2010 |
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| 20110263732 | Polylactic Acid Foam Composition - A foam precursor mixture of polylactic acid (PLA) resin having a D-lactic acid content that is about 3 mole % or less; nucleating agent; chain extender; and hydrocarbon blowing agent is provided. The foaming mixture is substantially free of a crosslinking agent. The foam premixture can be used to prepare PLA foams having improved heat resistance, lower densities, smaller cells, and higher cell counts. PLA foams in accordance with the invention may be useful for preparing thermoformed articles such as trays. PLA foamed articles may be prepared that exhibit heat resistance above a temperature of about 49° C. or more, and in particular, a heat resistance at 5 minutes of exposure in excess of about 74° C. | 10-27-2011 |
| 20120223459 | Process for Preparing a Heat Resistant Polylactic Acid Foamed Article - Some embodiments of the present invention provides a method of preparing a thermoformed article composed of polylactic acid that includes the steps of providing a foam sheet comprising polylactic acid having a D-lactic acid stereo-isomer content that is about 3 mole % or less, exposing the sheet to a temperature of at least about 190° C., and forming the heated sheet in a mold at a mold temperature that is at least about 50° C. and for a length of time to form a thermoformed article having a PLA crystalline content of at least about 10%. Surprisingly, it has been discovered that heat resistant thermoformed articles can be prepared in accordance with embodiments of the invention wherein the time required for forming the foam sheet into a molded article is less than about 10 seconds. | 09-06-2012 |
| 20130078445 | Foam Composition and Method of Making Same - A foam comprises (a) starch, (b) plasticizer, (c) compatibilizer, and (d) polyolefin selected from one or more of ethylene homopolymer, ethylene/alpha-olefin copolymer, ethylene/vinyl ester of aliphatic carboxylic acid copolymer, propylene homopolymer, and propylene copolymers. The ratio of A to B is at least 0.01, where A is the sum of the weights of components (a) and (b), and B is the sum of the weights of components (a) though (d). The foam may have a density of at most 10 pounds/cubic foot. | 03-28-2013 |
| 20130143975 | Method of Foaming Polyolefin Using Acrylated Epoxidized Fatty Acid and Foam Produced Therefrom - The presently disclosed subject matter relates generally to method of producing thermoplastic foam from a blend of polyolefin and acrylated epoxidized fatty acid using a phsyical blowing agent. Specifically, the presently disclosed subject matter includes embodiments wherein the acrylated epoxidized fatty acid is added to the polyolefin resin in an amount of from about 0.1% to about 10%, based on the total weight of the resin. The presently disclosed subject matter also includes the foam produced by the disclosed method. | 06-06-2013 |
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| 20080219701 | SQUAREWAVE CHARGING OF A PHOTORECEPTOR - Charging devices, electrostatic imaging devices, and methods generate a charging waveform having a DC bias component and an AC component for charging the imaging surface of a charge retentive member, the AC component having a substantially squarewave waveform. | 09-11-2008 |
| 20080226353 | APPARATUS AND METHODS FOR LOADING A DONOR ROLL UTILIZING A SLOW SPEED TRIM ROLL - An apparatus for loading one or more donor rolls of a developer unit, comprising a developer housing having a reservoir for a developer material, a rotatable first donor roll that delivers the toner onto a moving photoconductive member, a trim roll that receives developer material from the reservoir and delivers the developer material to a first magnetic brush roller that delivers toner to the first donor roll, and a rotatable second magnetic brush roll that receives the developer material from the first magnetic brush roll and delivers the toner to the first donor roll. The apparatus may further comprise a rotatable second donor roll that receives the toner from the second magnetic brush roll and delivers the toner onto the photoconductive member, and a rotatable third magnetic brush roll that receives the developer material from the second magnetic brush roll and delivers the toner to the second donor roll. The apparatus may further comprise a trim blade for trimming excess developer material from the trim roll. | 09-18-2008 |
| 20080226354 | APPARATUS AND METHODS FOR LOADING A DONOR ROLL - An apparatus for loading one or more donor rolls of a developer unit, comprising a developer housing having a reservoir for a developer material, a rotatable first donor roll that delivers the toner onto a moving photoconductive member, a rotatable first magnetic brush roll that receives the developer material from the reservoir and delivers the toner to the first donor roll, and a rotatable second magnetic brush roll that receives the developer material from the first magnetic brush roll and delivers the toner to the first donor roll. The apparatus may further comprise a rotatable second donor roll that receives the toner from the second magnetic brush roll and delivers the toner onto the photoconductive member, and a rotatable third magnetic brush roll that receives the developer material from the second magnetic brush roll and delivers the toner to the second donor roll. | 09-18-2008 |
| 20100092200 | OPTIMIZATION OF RELOAD PERFORMANCE FOR PRINTER DEVELOPMENT SYSTEMS WITH DONOR ROLLS - A method creates a printing image charge on a photoreceptor printing region of a photoreceptor within a printing apparatus and, simultaneously with the creating of the printing image charge, charges source patches on the photoreceptor outside the photoreceptor printing region. The method then transfers developer material from a donor roll to the photoreceptor. The source patches cause developer material to be removed from areas of the donor roll outside a donor roll printing region to create developer material-depleted regions. The method then reloads the donor roll with developer material using a magnetic brush and evaluates a reload function of the donor roll by characteristics of developer material on target patches with developer material in areas of the non-printing region of the photoreceptor adjacent the target patches. The method then alters the printing image charge to maintain the reload function within a predetermined range. | 04-15-2010 |
| 20100194842 | METHOD AND APPARATUS FOR CORRECTING BANDING DEFECTS IN A PHOTORECEPTOR IMAGE FORMING APPARATUS - A method and apparatus for correcting banding defects in a photoreceptor image forming apparatus. The method or apparatus may form one or more images using one or more laser beams to alter an electrostatic charge on a photoreceptor, check the one or more images for one or more sets of image perfections arising from electric field attenuation in the photoreceptor, and compensate for the electric field attenuation. The method or apparatus may further form a compensated image. | 08-05-2010 |
| 20110026945 | XEROGRAPHIC PROCESS CONTROLS SCHEDULING APPROACH TO MITIGATE COSTS OF MEASUREMENT - A method and apparatus for maintaining color consistency includes varying a sampling interval to balance the benefit of xerographic process controls regulation with the cost of sampling. The request to sample is triggered by external indicators (area coverage, carrier age, relative humidity, temperature, etc.). Before the developed mass is expected to go out of range because of the external indicators, a patch measurement is made and the system is controlled back towards its desired set-point. | 02-03-2011 |
| 20110280606 | DYNAMIC DONOR LOADING CONTROL FOR DEVELOPMENT SYSTEM - A method and apparatus transfer a material from first roller within a container to at least one second roller, and transfer the material from the second roller to at least one third roller. The second roller and the third roller form a loading nip at a location where the second roller is closest to the third roller. The method and apparatus transfer the material from the third roller to at least one recipient device, and measure current flow between the second roller and the third roller using a measurement device. Then, the method alters the relative rotation rate difference between the first roller and the second roller based on the current flow to maintain a predetermined density of the material at the loading nip using a controller. | 11-17-2011 |
| 20120148272 | METHOD AND APPARATUS FOR COMPENSATION OF BANDING FROM MULTIPLE SOURCES IN MARKING PLATFORM - A method for compensation of banding in a marking platform includes: initiating a calibration stage; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; obtaining 1x signals from sensors associated with the marking modules; and processing the image data in relation to the 1x signals to form banding profiles for multiple marking modules. Alternatively, the method may include: processing image data in relation to 1x signals to form banding profiles for multiple marking modules; determining amplitudes in multiple banding profiles exceeds a threshold to identify dominant banding profiles; and processing dominant banding profiles to form dominant banding signatures. Alternatively, the method may include: initiating a correction stage; obtaining 1x signals from sensors associated with dominant marking modules; and periodically processing dominant banding signatures and 1x signals to determine a banding compensation value. | 06-14-2012 |
| 20120250037 | METHOD AND APPARATUS FOR COMPENSATION OF ARBITRARY BANDING SOURCES USING INLINE SENSING AND CONTROL - A method for compensation of banding in a marking platform includes: initiating a signature learning mode; establishing a timing reference after marking modules have achieved constant velocity; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; and processing the image data in relation to the timing reference to form banding profiles for multiple banding sources. Alternatively, the method may include: initiating a cycle up stage in a phase learning mode; establishing a timing reference after marking modules have achieved constant velocity; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining banding image data for the test pattern from a sensor; and processing the image data with banding signatures in relation to the timing reference to form phase estimates for each banding signature. Additional embodiments are also provided. | 10-04-2012 |
| 20130050327 | INKJET PRINTER WITH PARTIAL IMAGE RECEIVING MEMBER HEATING - A method for operating an image receiving member in a phase change ink printer has been developed. The method includes selectively rotating the image receiving member past an activated heater to heat a first portion of the image receiving member to a first predetermined temperature that is greater than a second temperature to which a remaining portion of the image receiving member is heated by the heater. | 02-28-2013 |
| 20130070037 | TRANSFIX ROLLER FOR USE IN AN INDIRECT PRINTER WITH AN IMAGE RECEIVING MEMBER HAVING A THIN WALL - A transfix roller is adapted for use with a thin walled image receiving member in an indirect printer. The transfix roller is centrally supported to present a more uniform pressure profile in the nip formed with the image receiving member. An interference fit between the central shaft and the roller sleeve enables the transfix roller to be made without an additional process to secure the shaft to the sleeve. | 03-21-2013 |
| 20130129365 | METHOD AND SYSTEM FOR TROUBLESHOOTING CHARGING AND PHOTORECEPTOR FAILURE MODES ASSOCIATED WITH A XEROGRAPHIC PROCESS - This disclosure provides methods and systems for troubleshooting charging and photoreceptor failure modes associated with a xerographic process. Specifically, according to an exemplary method the photoreceptor decay behavior, with and without the effects of depletion, are quantified and used to determine a performance state of one or more of the charging stations and the photoreceptor surface. | 05-23-2013 |
| 20130216248 | METHOD AND APPARATUS FOR COMPENSATION OF BANDING FROM MULTIPLE SOURCES IN MARKING PLATFORM - A method for compensation of banding in a marking platform includes: initiating a calibration stage; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; obtaining 1× signals from sensors associated with the marking modules; and processing the image data in relation to the 1× signals to form banding profiles for multiple marking modules. Alternatively, the method may include: processing image data in relation to 1× signals to form banding profiles for multiple marking modules; determining amplitudes in multiple banding profiles exceeds a threshold to identify dominant banding profiles; and processing dominant banding profiles to form dominant banding signatures. Alternatively, the method may include: initiating a correction stage; obtaining 1× signals from sensors associated with dominant marking modules; and periodically processing dominant banding signatures and 1× signals to determine a banding compensation value. | 08-22-2013 |
| 20130293616 | Transfix Roller with Adaptive Center Loading for Use in an Indirect Printer - An image transfer system for use in an indirect printer includes a support roller for a transfix roller. The support roller is configured to apply pressure to a center portion of a nip formed between a transfix roller and an imaging drum while the transfix roller applies pressure to the ends of the nip. This configuration is particularly advantageous for use with imaging drums and transfix rollers having thin walls. | 11-07-2013 |
| 20130328983 | Inkjet Printer having an Image Drum Heater with Heater Seals - An inkjet offset printer includes a heated drum assembly having a hollow drum with an internal surface defining an internal cavity and a heater located in the internal cavity. The heater includes a reflector having a seal, and at least one heating element configured to generate heat and disposed between the reflector and the internal surface of the drum. The seal contacts the internal surface of the hollow drum to confine the generated heat within a space defined by the reflector and the internal surface of the drum. | 12-12-2013 |
| 20130328989 | Inkjet Printer having an Image Drum Heating and Cooling System - An inkjet offset printer includes an image receiving drum assembly having a hollow drum with an external surface and an internal surface defining an internal cavity. A heating and a cooling system located in the internal cavity provides distributed heating and cooling to the internal surface of the drum. Heating and cooling can be provided to individual regions of the internal drum surface to maintain a substantially uniform external drum surface temperature. | 12-12-2013 |
| 20130335473 | System and Method for Printing Full-Color Composite Images in an Inkjet Printer - An inkjet printer includes a plurality of color separation modules. Each color separation module includes an image receiving member and a printhead module configured to eject ink drops onto the image receiving member to form a color separation on the image receiving member. The printer is configured to transfix each color separation on each image receiving member to a single sheet to produce a composite ink image on the print medium after the print medium has passed by all of the color separation modules in the printer. | 12-19-2013 |
| 20130335476 | SYSTEM AND METHOD FOR IMPROVING TEMPERATURE UNIFORMITY OF IMAGE DRUMS - A printer includes an image drum temperature regulation system that helps reduce thermal gradients on the image drum surface. The image drum temperature regulation system includes a feedback controller and a feed-forward controller. The image drum temperature regulation system operates the heaters and fan of the image drum with reference to a temperature difference between actual temperature of the image drum and a temperature setpoint and to the thermal effect of ejecting an ink image onto the image drum. | 12-19-2013 |
| 20130335752 | Transfix Roller with Adjustable Crown for Use in an Indirect Printer - An indirect printer includes a system for alternating the pressure in a transfer nip by manipulating the transfer roller. The system includes a pair of pivotable collars mounted about the ends of the transfer roller. The collars are pivoted towards or away from one another to bend the transfer roller and to increase or decrease, respectively, the pressure in the longitudinal center of the nip. | 12-19-2013 |
| 20140028769 | SYSTEM AND METHOD FOR REDUCING ELECTROSTATIC FIELDS UNDERNEATH PRINT HEADS IN AN ELECTROSTATIC MEDIA TRANSPORT - Embodiments described herein are directed to a system for reducing electrostatic fields underneath print heads in a direct marking printing system. The system includes: one or more print heads for depositing ink onto a media substrate; a media transport for moving the media substrate along a media path past the one or more print heads; a conductive platen contacting the media transport belt; and an electrostatic field reducer that includes an alternating current corona device positioned upstream of the one or more print heads. The media transport includes a media transport belt and, when the media substrate is on the transport belt it has an electrostatic field, which can cause printing defects. The electrostatic field reducer reduces the electrostatic field on the surface of the media substrate and thereby reduces printing defects. | 01-30-2014 |
| 20140168313 | System And Method For Controlling Dewpoint In A Print Zone Within An Inkjet Printer - An aqueous inkjet printer includes a print zone with a relative humidity sensor and a temperature sensor. A controller identifies a dew point of air between a printhead and an intermediate imaging member with reference to the air temperature and the moisture in the air of the print zone, and identifies a target dew point with reference to the image data used to operate the printhead. The controller operates a heater and an air mover to adjust the dew point of the air between the printhead and the intermediate imaging member to the target dew point. | 06-19-2014 |
| 20140184712 | SEMI-CONDUCTIVE MEDIA TRANSPORT FOR ELECTROSTATIC TACKING OF MEDIA - A semi-conductive media transport is used with an ink jet printing system. A belt is held flat and slides across a conductive platen, causing electrostatic charges on the belt. The belt is made semi-conductive to prevent charge buildup. The belt has an effective surface resistivity between a lower limit to preclude a buildup of electrostatic charges, and an upper limit to enable electrostatic tacking of the media to the belt. The resistivity limits vary depending upon belt velocity, thickness, material, belt and media dielectric constant, and slot width. A pair of charged nip rollers tacks the media substrate to the belt. An AC corotron is disposed above the belt to establish a net neutral charge state on the media substrate and the belt. Platen slots directly below the ink jet print heads will maintain the net neutral charge state on the media substrate and the belt. | 07-03-2014 |
| 20140198164 | Inkjet Printer Having An Image Drum Heating And Cooling System - An inkjet offset printer includes an image receiving drum assembly having a hollow drum with an external surface and an internal surface defining an internal cavity. A heating and a cooling system located in the internal cavity provides distributed heating and cooling to the internal surface of the drum. Heating and cooling can be provided to individual regions of the internal drum surface to maintain a substantially uniform external drum surface temperature. | 07-17-2014 |
| 20140204157 | Pressure Roller Containing A Volume Of Fluid - A pressure roller for a media processing device has enhanced temperature uniformity and resists temperature increases when subjected to elevated temperatures, enabling greater dimensional stability of the pressure roller in fluctuating temperatures. The pressure roller includes a hollow cylindrical member, an elastomeric layer, and an endbell on each end of the hollow cylindrical member. A chamber is defined by an inner wall of the hollow cylindrical member and the endbells in which a volume of fluid is contained to absorb heat from the hollow cylindrical member. | 07-24-2014 |
| 20140267501 | Active Biased Electrodes for Reducing Electrostatic Fields Underneath Print Heads in an Electrostatic Media Transport - Embodiments described herein are directed to a system for reducing electrostatic fields underneath print heads in a direct marking printing system. The system includes: one or more print heads for depositing ink onto a media substrate; a media transport for moving the media substrate along a media path past the one or more print heads; a conductive platen contacting the media transport belt; an electrostatic field reducer that includes an alternating current charge device positioned upstream of the one or more print heads; and one or electrically isolated biased electrodes in registration with the ink deposition areas of the one or more print heads. The media transport includes a media transport belt and, when the media is on the transport belt it has an electrostatic field, which can cause printing defects. The electrostatic field reducer and electrodes reduce the electrostatic field on the surface of the media and thereby reduce printing defects. | 09-18-2014 |
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| 20080240305 | Message Decoding With Apriori Information and Soft Combining - A method and arrangement for improving channel decoding performance in a radio receiver. Data bits from previously decoded messages are analyzed to provide a priori information to a channel decoder which is decoding a currently received message of the same type. The invention may analyze both the header and data fields of the previously decoded message frames to detect fields that are unchanging or rarely changing from one frame to the next. Probabilistic knowledge (a) of the bits in these unchanging or rarely changing fields is then used to improve the decoding performance for the current message. If a message cannot be successfully decoded, soft values of the bits are stored and then soft-combined with selected bits in the next message received prior to decoding. The invention is applicable to any type of message that has data components that are repeated with varying degrees of probability in successive transmissions. | 10-02-2008 |
| 20090011773 | SYSTEM AND METHOD FOR LOCATING A WIRELESS LOCAL AREA NETWORK - A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined intervals or conditions, the system determines a current position of the mobile terminal, and determines whether the current position of the mobile terminal is close enough to a stored WLAN position for the mobile terminal to connect to the WLAN corresponding to the stored WLAN position. If so, a notification is sent to the mobile terminal indicating that the mobile terminal is within range of the identified WLAN. The mobile terminal then scans for the identified WLAN. | 01-08-2009 |
| 20090131110 | UPLINK RADIO FRAMES APPORTIONED FOR PLURAL MULTIPLE ACCESS TECHNOLOGIES - Frames of information are communicated between a base station ( | 05-21-2009 |
| 20100040174 | METHOD AND ARRANGEMENT FOR ESTIMATING DC OFFSET - A method and arrangement for estimating a DC offset for a signal received in a radio receiver. The received signal includes a digitally modulated signal component, a DC offset component, and a noise component. When the signal is of a known type, such as a Gaussian Minimum Shift Keying (GMSK)-modulated signal with constant amplitude in a GSM/EDGE cellular radio system, the method exploits the known characteristics of the statistical distribution for the known type of signal to obtain a better estimate of the DC offset. The statistical distribution of the received digitally modulated signal component is first analyzed. That statistical distribution is then compared to the known statistical distribution for the known type of signal to identify differences. The differences are then used to estimate the DC offset. Additional iterations may be performed to further improve the DC estimate. | 02-18-2010 |
| 20150229436 | METHOD AND APPARATUS FOR SIGNAL QUALITY LOSS COMPENSATION IN MULTIPLEXING TRANSMISSION SYSTEMS - A wireless communication receiver receiving a multiplexed signal comprising two or more signal streams calculates a received signal quality for the multiplexed signal as a function of stream-specific received signal qualities, determines one or more loss parameters indicative of variations in the stream-specific received signal qualities, and generates quality feedback based on such information. In turn, a transmitter controls the selection of one or more transmission parameters of the multiplexed signal based on the quality feedback, such that its transmit link adaptations account for the losses in received signal quality at the receiver arising from the variations in the stream-specific received signal qualities. The quality feedback may include calculated loss values, or parameter/penalties that permit loss calculation, and the method applies to both code multiplexing and spatial multiplexing. | 08-13-2015 |
| Patent application number | Description | Published |
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| 20080249250 | Copolymers Containing Lateral Carbamate Groups And Groups Which Can Be Activated With Actinic Radiation, Processes For Preparing Them, And Their Use - Copolymers (A) containing lateral, primary and/or secondary carbamate groups (a12) and groups (a31) which can be activated with actinic radiation, preparable by | 10-09-2008 |
| 20090053420 | THERMOSETTING COATING COMPOSITIONS WITH MULTIPLE CURE MECHANISMS - A curable coating composition comprising an acrylic polymer having an epoxide equivalent weight from about 150 to about 1500, a compound having acid and carbamate groups, and an aminoplast crosslinker may be applied to a substrate and cured at a temperature at which both acid and carbamate groups of the compound react. The composition may further contain a blocked polyisocyanate crosslinker to react with hydroxyl groups on the polymer and/or formed by reaction of epoxide with carboxylic acid groups. | 02-26-2009 |
| 20090288706 | Hybrid Photovoltaic Cell Module - A hybrid photovoltaic cell module includes a substrate and a photopolymer composition disposed on the substrate. The photopolymer composition includes an organic photopolymer, a plurality of nanoparticles, and a dendrimer that disperses the nanoparticles in the composition. The dendrimer has a number average molecular weight of from 300 to 10,000 g/mol and a core having a carbon atom directly bonded to X | 11-26-2009 |
| 20140364663 | Method For Recycling A Plastic - A method of recycling a plastic includes decomposing the plastic in the presence of a catalyst to form hydrocarbons. The catalyst includes a porous support having an exterior surface and defining at least one pore therein. The catalyst also includes a depolymerization catalyst component disposed on the exterior surface of the porous support for depolymerizing the plastic. The depolymerization catalyst component includes a Ziegler-Natta catalyst, a Group IIA oxide catalyst, or a combination thereof. The catalyst further includes a reducing catalyst component disposed in the at least one pore. | 12-11-2014 |
| 20140371055 | Catalyst For Decomposing A Plastic - A catalyst for decomposing a plastic includes a porous support having an exterior surface and defines at least one pore therein. The catalyst also includes a depolymerization catalyst component disposed on the exterior surface of the porous support for depolymerizing the plastic. The depolymerization catalyst component includes a Ziegler-Natta catalyst, a Group IIA oxide catalyst, or a combination thereof. The catalyst further includes a reducing catalyst component disposed in the at least one pore. The catalyst is formed by a method that includes the step of disposing the depolymerization catalyst component on the exterior surface. The method further includes the step of disposing the reducing catalyst component in the at least one pore. | 12-18-2014 |
