Patent application number | Description | Published |
20100046971 | METHOD FOR CONTROLLING A DEVELOPMENT PROCESS IN DIFFERENT OPERATING PHASES - In a method to control a development process and an electrographic process, at least one developer station inks a latent image on a carrier with a toner. The toner is extracted from a mixture of toner and toner particles and wherein first toner is supplied to the mixture. A characteristic value is determined for a status of the mixture from a model calculation in which a toner exchange rate and an operating aging rate are linked. The development process is at least one of monitored, controlled, or regulated depending on the characteristic value. Also in a related method for controlling a development process, a characteristic value is determined for a status of the mixture from a model calculation in which a change of a toner consumption rate for the toner within a time interval during operation of the developer station and a time constant are taken into account. At least one of monitoring, controlling, or regulating the development process depends on the characteristic value. | 02-25-2010 |
20100321047 | METHOD AND DEVICE FOR DETECTING ELECTRIC POTENTIAL AND ELECTRIC CHARGES IN A PRINTER OR COPIER - In a system or method to detect an electrical potential and layer thickness of a layer of toner particles in a printer or copier, a measurement arrangement is provided having a first electrode and at least one second electrode situated opposite the first electrode. An intermediate image carrier is provided on a surface of which a toner image is generated. A drive unit drives the intermediate image carrier so that its surface is directed past the first electrode situated opposite the surface. An evaluation unit is electrically connected with the first electrode. The evaluation unit detects an electrical current flowing between the first electrode and the evaluation unit. The evaluation unit determines an electrical charge of toner particles arranged in a detection region in a first measurement procedure with aid of the detected current. The evaluation unit also determines the layer thickness of the layer of toner particles in an inked region via at least one second measurement procedure. | 12-23-2010 |
20110286757 | ARRANGEMENT TO REGULATE THE PROPORTIONS OF TWO COMPONENTS TO BE MIXED IN A MIXING UNIT BASED ON PREDETERMINED DESIRED VALUES - In a method or system for regulation of real values of toner concentration and fill level in a mixing unit to predetermined desired values in a developer station of an electrographic printing apparatus, the real value of the toner concentration in the mixing unit is adjusted with a first control unit by supplying toner concentrate from a first reservoir. A desired toner concentrate value is determined from the predetermined desired values of the toner concentration and the fill level. A real concentrate value is also determined from the real values of the toner concentration and the fill level measured in the mixing unit. With the first control unit, a feed of toner concentrate into the mixing container is regulated depending on a difference between the real toner concentrate value and the desired toner concentrate value. The real value of the fill level in the mixing unit is also adjusted with a second control unit by supplying carrier fluid from a second reservoir. A desired carrier fluid value is determined from the predetermined desired values of the toner concentration and the fill level. A real carrier fluid value is also determined from the real values of the toner concentration and the fill level measured in the mixing unit. With the second control unit, a feed of carrier fluid into the mixing unit is regulated depending on a difference between the real carrier fluid value and the desired carrier fluid value. | 11-24-2011 |
20130272733 | METHOD TO OPERATE A DIGITAL PRINTER TO PRINT A RECORDING MATERIAL, AND ASSOCIATED DIGITAL PRINTER WITH MIXING CONTAINER - In a method to operate a digital printer having multiple developer stations operated with liquid developer, and wherein a number of the developer stations participating in printing is dependent on a respective print operating mode, liquid developer is supplied from a mixing container to at least one of the developer stations. With a regulatory device a fill level of liquid developer in the mixing container is kept substantially constant depending on the print operating mode. A desired different operating value is provided for the fill level for the regulatory device depending on the operating mode. | 10-17-2013 |
20130272734 | METHOD TO OPERATE A DIGITAL PRINTER AND DETERMINE THE TONER CONCENTRATION, AS WELL AS AN ASSOCIATED DIGITAL PRINTER - In a method or digital printer to print a recording material with toner particles applied with a liquid developer, toner concentration of the liquid developer is determined via measurement with aid of ultrasonic pulses. At least one ultrasonic pulse is generated by discharging an ultrasound emitter charged with a charge voltage. The ultrasonic pulse permeates the liquid developer and is received by an ultrasound receiver which generates a reception signal corresponding to the received ultrasonic pulse. With a control device, the charge voltage is regulated to a value such that a representative value of the reception signal corresponds to a predetermined desired value. The toner concentration is determined from the regulated charge voltage. | 10-17-2013 |
Patent application number | Description | Published |
20080207865 | Method for Producing Polyoxymethlenes - Process for preparing polyoxymethylene copolymers (POMs) by a) polymerizing a reaction mixture comprising suitable main monomers and comonomers and also a polymerization initiator and, if appropriate, a regulator, b) adding a deactivator and c) removing the residual monomers, wherein the amount of compounds whose melting point at 1013 hPa is below 60° C. present in the reaction mixture at any point in time during the process is not more than 0.1% by weight, with the POM, the monomers, comonomers, polymerization initiators, deactivators and regulators not being included in the calculation. | 08-28-2008 |
20080214748 | Method for Removing Residual Monomers from Polyoxymethylenes - Process for removing unconverted residual monomers from polyoxymethylenes, wherein a devolatilization step is carried out in an extrudate devolatilizer. | 09-04-2008 |
20080234459 | Process for Preparing Polyoxymethtylene Homopolymers or Copolymers - A process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane or additionally of suitable comonomers, in which
| 09-25-2008 |
Patent application number | Description | Published |
20090137564 | 5-[(3,3,3-Trifluoro-2-hydroxy-1-arylpropyl)amino]-1H-quinolin-2-ones, A Process for Their Production and Their Use as Anti-inflammatory Agents - The present invention relates to compounds of formula I, | 05-28-2009 |
20110160306 | USE OF ALKANEDICARBOXYLIC ACIDS AND RETINOIDS FOR TREATMENT OF ROSACEA AND OTHER INFLAMMATORY SKIN DISEASES - In order to make available another therapeutic possibility for rosacea the use of at least one α,ω-n-alkanedicarboxylic acid with 7 to 13 carbon atoms or its esters and at least one retinoid for producing a pharmaceutical preparation is proposed. The suggested formulation is also effective in treatment of other inflammatory skin diseases such as psoriasis, atopic dermatitis and common acne. | 06-30-2011 |
20120027862 | Azelaic acid-comprising formulation with added pigment - The present patent application relates to an azelaic acid-comprising pharmaceutical composition, preferably an azelaic acid-comprising gel, with added pigment, which composition can be used, inter alia, for treating rosacea and acne, and also to a process for its preparation. | 02-02-2012 |
20130005766 | 5-[(3,3,3-TRIFLUORO-2-HYDROXY-1-ARYLPROPYL)AMINO]-1H-QUINOLIN-2-ONES, A PROCESS FOR THEIR PRODUCTION AND THEIR USE AS ANTI-INFLAMMATORY AGENTS - The present invention relates to compounds of formula I, | 01-03-2013 |
Patent application number | Description | Published |
20130225366 | METHOD FOR OPERATING A MOTOR VEHICLE AND A CONTROL DEVICE FOR SAID VEHICLE - A method of operating a motor vehicle having a drive aggregate, a transmission and a hydraulic system. The transmission has shift elements and, for each gear, only a portion of the elements are engaged while a remainder are disengaged. The hydraulic system has main pump driven by the drive aggregate and an auxiliary pump. The method tests the functionality of the auxiliary pump. The drive aggregate and the main pump are insufficiently driven such that the shift elements can not engage. The auxiliary pump is driven to provide required pressure such that all but one of the shift elements fully engages. The remaining shift element is then first engaged up to its engagement point and then either engaged beyond its engagement point or another unengaged shift element is engaged beyond its engagement point. The functionality of the auxiliary pump is determined based on changes in the drive aggregate's rotational speed. | 08-29-2013 |
20130272900 | METHOD AND DEVICE FOR CONTROLLING AN AUXILIARY PUMP FOR A TRANSMISSION - A method of controlling an auxiliary pump for supplying the hydraulic fluid of a hybrid transmission of a vehicle. The auxiliary pump, after the expiration of a predetermined time interval of deactivation, is activated to prevent accumulation of air in the intake area of the auxiliary pump. In addition, a device for the execution of the method, in which a control device is provided which has its signals connected with the electric auxiliary pump for the purpose of controlling the auxiliary pump in order to prevent accumulation of air in the intake area of the auxiliary pump. | 10-17-2013 |
20130284125 | METHOD AND CONTROL UNIT FOR OPERATING A DRIVE TRAIN OF A HYBRID VEHICLE - A method of operating a drive-train of a hybrid vehicle which comprises at least a hybrid drive with an internal combustion engine and an electric machine, an automatic or automated change-speed transmission connected between the hybrid drive and a drive output, and a clutch connected between the internal combustion engine and the electric machine. When starting the internal combustion engine from a purely electric driving mode, the clutch is initially disengaged. To start the internal combustion engine, the clutch is at least partially engaged and the internal combustion engine is drag-started by the electric machine, and, in parallel with starting the internal combustion engine, a downshift in the transmission is initiated once a rotational speed of the internal combustion engine reaches or exceeds an applicable threshold value. | 10-31-2013 |
20140136040 | METHOD FOR CONTROLLING A HYBRID DRIVE TRAIN OF A MOTOR VEHICLE - A method of controlling a hybrid drive-train of a vehicle having a combustion engine with a driveshaft, a transmission with an input shaft and an output shaft that drives a transfer box. An electric machine has a rotor that is connected to the transmission input shaft. A separator clutch is arranged between the engine driveshaft and the transmission input shaft. For coupling of the engine, the engine is first accelerated, with a rotational speed regulation, toward a target speed until a reference speed is reached or exceeded while the clutch remains disengaged, then, with continuous speed regulation, the engine is adjusted to a corrected target speed while the clutch is engaged until a target torque is obtained, then, with torque control, the engine is adjusted to the target torque while the clutch, with differential rotational speed regulation, is regulated to a target speed difference, and finally the clutch is engaged. | 05-15-2014 |
20140142796 | METHOD FOR OPERATING A HYBRID DRIVE TRAIN OF A VEHICLE - A method of operating a vehicle hybrid drive-train in which, depending on the operating situation, the engine and electric machine either operate individually or together. The engine and the electric machine can be coupled or separated by a clutch. The engine can be started by the electric machine or a separate starting device. To co-ordinate transmission shifts and required engine starts, during a transmission shifting process, if the engine needs to be started, then based on whether the shift is an upshift, a downshift, a traction shift or an overdrive shift and also depending on the type of engine start required, it is first determined whether the shift should be completed, at least partially completed or discontinued before carrying out the start and, based on this determination, measures for continuing, at least partially continuing or discontinuing the shift process are initiated. | 05-22-2014 |