Höfner
Christine Häfner, Zwickau DE
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20100206984 | Bearing Application for Fastening Step Flights in an Aircraft - The invention relates to a bearing application for staircases in an aircraft with at least two decks. | 08-19-2010 |
Christine Häfner, Zwickau DE
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20100206984 | Bearing Application for Fastening Step Flights in an Aircraft - The invention relates to a bearing application for staircases in an aircraft with at least two decks. | 08-19-2010 |
Dirk Höfner, Wellheim DE
Egon Hüfner, Kunzelsau DE
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20110192471 | VARIABLE FLOW RATE VALVE SYSTEM - A variable flow rate valve system adjusts flow rate using the flow medium itself by creating differential pressures that determine a position of a valve member in relation to an associated valve seat. The valve system includes a diaphragm that divides a valve chamber into a control chamber and a flow chamber connected with an inlet. A valve body is connected with the diaphragm and cooperates with a valve seat to modulate flow from the inlet to an outlet and through the flow chamber. A first pilot valve in a first bypass extends between the outlet and the control chamber, and a second pilot valve in a second bypass extends between the inlet and the control chamber. The valves are controlled to selectively open or close respective bypasses to vary the flow through the flow chamber between a fully open and a fully closed condition in response to a control signal. | 08-11-2011 |
Eric Hüfner, Hennef DE
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20110300584 | SYNTHESIS OF FUCOSYLATED COMPOUNDS - A method for making a genetically modified cell having the ability to produce fucosylated compounds comprising the steps of | 12-08-2011 |
Georg Hüfner, Wildflecken DE
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20120159776 | JOINING MEANS - In the invention, a joining means having a ram tool, a countertool and a holder with an opening to accommodate the ram tool or the countertool, is described. The two tools are arranged coaxial with each other at different ends of a C-bracket. The invention is distinguished in that the holder comprises at least one plane contact surface arranged on the outer surface of the holder, resting in contact with at least one plane face of the corresponding end of the C-bracket and detachably fastened thereto. Between the contact surface and the face, at least one interlay is arranged, determining the information and/or the distance of the contact surface from the face. | 06-28-2012 |
Holger Hüfner, Bautzen DE
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20100030375 | CONTROL METHOD FOR A COMPLEX CONSISTING OF A PLURALITY OF MULTIAXIAL HANDLING DEVICES ARRANGED IN SUCCESSION AND/OR SIDE BY SIDE, AND ALSO DATA STORAGE MEDIUM, CONTROL SYSTEM AND COMPLEX - A control method for a complex consisting of a plurality of multiaxial handling devices arranged in succession and/or side by side, is provided. A complex consisting of a plurality of multiaxial handling devices, arranged in succession and/or side by side, for the execution of multidimensional working and/or handling movements and consisting of at least one conveyor facility for transporting objects is controlled. The handling devices are provided for picking up, processing and setting down the objects being transported along. The guide value for the multidimensional movement sequence of handling devices is modeled on one or more objects transported along by a conveyor facility as a guide value in a distributed multiaxial system with synchronous operation, such as for example in the case of a printing machine, a paper mill or rolling mill or the like. | 02-04-2010 |
Holger Hüfner, Bautzen DE
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20100008754 | A METHOD OF SYNCHRONIZING A PICKUP OF A HANDLING DEVICE, A COMPUTER READABLE MEDIUM AND A CONTROL DEVICE - A method of synchronizing a pickup of a handling device, a computer readable medium and a control device are disclosed. During movement, a pickup of a multi-axis handling device is synchronized with an object to be picked up which is carried along by a conveyor device. Furthermore, the pickup is synchronized with a moving conveyor device in order to put the object down onto the conveyor device. The pickup is synchronized along a computationally-determined polynomial path of at least the 3 | 01-14-2010 |
20100030375 | CONTROL METHOD FOR A COMPLEX CONSISTING OF A PLURALITY OF MULTIAXIAL HANDLING DEVICES ARRANGED IN SUCCESSION AND/OR SIDE BY SIDE, AND ALSO DATA STORAGE MEDIUM, CONTROL SYSTEM AND COMPLEX - A control method for a complex consisting of a plurality of multiaxial handling devices arranged in succession and/or side by side, is provided. A complex consisting of a plurality of multiaxial handling devices, arranged in succession and/or side by side, for the execution of multidimensional working and/or handling movements and consisting of at least one conveyor facility for transporting objects is controlled. The handling devices are provided for picking up, processing and setting down the objects being transported along. The guide value for the multidimensional movement sequence of handling devices is modeled on one or more objects transported along by a conveyor facility as a guide value in a distributed multiaxial system with synchronous operation, such as for example in the case of a printing machine, a paper mill or rolling mill or the like. | 02-04-2010 |
Jochen Häfner, Lorch DE
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20100037847 | Internal combustion engine comprising several combustion chambers - In an internal combustion engine having several combustion chambers formed in in-line cylinders wherein an air/fuel mixture can be combusted and which include a common cylinder head, with discharge passages formed within the cylinder head and extending to a common confluence zone in communication with a discharge manifold, the common confluence zone is delimited on a first side (A) by at least one cylinder head wall and a separate shell element on a second side mounted to the outside of the cylinder head, the shell element being curved funnel-like for conducting the exhaust gas away from the engine. | 02-18-2010 |
Jochen Häfner, Lorch DE
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20100037847 | Internal combustion engine comprising several combustion chambers - In an internal combustion engine having several combustion chambers formed in in-line cylinders wherein an air/fuel mixture can be combusted and which include a common cylinder head, with discharge passages formed within the cylinder head and extending to a common confluence zone in communication with a discharge manifold, the common confluence zone is delimited on a first side (A) by at least one cylinder head wall and a separate shell element on a second side mounted to the outside of the cylinder head, the shell element being curved funnel-like for conducting the exhaust gas away from the engine. | 02-18-2010 |
Johannes Benedikt Höfner, Stuttgart DE
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20090322068 | Passenger automobile - In a passenger automobile having a pressure tank which extends along the longitudinal vehicle axis, the tank comprises between its front and rear ends at least one conical section. | 12-31-2009 |
Johannes Benedikt Höfner, Stuttgart DE
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20090322068 | Passenger automobile - In a passenger automobile having a pressure tank which extends along the longitudinal vehicle axis, the tank comprises between its front and rear ends at least one conical section. | 12-31-2009 |
Jurgen Häfner, Ludvika SE
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20130038975 | HIGH VOLTAGE DC BREAKER APPARATUS - A high voltage DC breaker apparatus configured to break a fault current occurring in a high voltage DC conductor includes a current limiting arrangement having at least one section with at least one semiconductor device of turn-off type and at least one arrester connected in parallel therewith, and a mechanical DC breaker connected in series with the current limiting arrangement and including a mechanical switch. The mechanical DC breaker is configured to enable breaking of a fault current in said DC conductor once said semiconductor devices of said arrangement have been turned off. | 02-14-2013 |
20130050888 | HIGH VOLTAGE DC SWITCHYARD WITH SEMICONDUCTOR SWITCHES - A high voltage DC switchyard comprises at least one busbar, at lest two DC lines connected to said at least one busbar through DC breakers comprising a section of at least one semiconductor device of turn-off type and rectifying member in anti-parallel therewith. At least one said DC line is connected to at least one said busbar through a unidirectional said DC breaker, i.e. a DC breaker that may only block current therethrough in one direction. | 02-28-2013 |
Jürgen Häfner, Ludvika SE
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20120299393 | DEVICE AND METHOD TO BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE AND CURRENT LIMITING ARRANGEMENT | 11-29-2012 |
20130009491 | SWITCHING MODULE FOR USE IN A DEVICE TO LIMIT AND/OR BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE - A switching module, intended to be used in a medium or high voltage DC breaker or a DC current limiter, includes at least one power semiconductor switching element, a gate unit arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor arranged to provide power to a power supply input of the gate unit. The switching module further includes a power transformation device arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor. | 01-10-2013 |
Jürgen Häfner, Ludvika SE
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20120299393 | DEVICE AND METHOD TO BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE AND CURRENT LIMITING ARRANGEMENT | 11-29-2012 |
20130009491 | SWITCHING MODULE FOR USE IN A DEVICE TO LIMIT AND/OR BREAK THE CURRENT OF A POWER TRANSMISSION OR DISTRIBUTION LINE - A switching module, intended to be used in a medium or high voltage DC breaker or a DC current limiter, includes at least one power semiconductor switching element, a gate unit arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor arranged to provide power to a power supply input of the gate unit. The switching module further includes a power transformation device arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor. | 01-10-2013 |
20130038975 | HIGH VOLTAGE DC BREAKER APPARATUS - A high voltage DC breaker apparatus configured to break a fault current occurring in a high voltage DC conductor includes a current limiting arrangement having at least one section with at least one semiconductor device of turn-off type and at least one arrester connected in parallel therewith, and a mechanical DC breaker connected in series with the current limiting arrangement and including a mechanical switch. The mechanical DC breaker is configured to enable breaking of a fault current in said DC conductor once said semiconductor devices of said arrangement have been turned off. | 02-14-2013 |
20130050888 | HIGH VOLTAGE DC SWITCHYARD WITH SEMICONDUCTOR SWITCHES - A high voltage DC switchyard comprises at least one busbar, at lest two DC lines connected to said at least one busbar through DC breakers comprising a section of at least one semiconductor device of turn-off type and rectifying member in anti-parallel therewith. At least one said DC line is connected to at least one said busbar through a unidirectional said DC breaker, i.e. a DC breaker that may only block current therethrough in one direction. | 02-28-2013 |
20130106184 | HVDC SWITCHYARD AND AN HVDC SWITCHYARD SYSTEM | 05-02-2013 |
20130278078 | METHOD, CIRCUIT BREAKER AND SWITCHING UNIT FOR SWITCHING OFF HIGH-VOLTAGE DC CURRENTS - A high voltage DC circuit breaker includes a semiconductor switching assembly in series with a mechanical switch. When the semiconductor switching assembly is switched off due to a current fault, a residual current flowing through arresters of the semiconductor switching assembly is switched off by the mechanical switch. A capacitor arranged parallel to the mechanical switch leads to passive resonance effects, which in turn induce current zero crossings in its arc. The current zero crossings allow for reliable extinguishing of the arc. The mechanical switch can be an AC circuit breaker. | 10-24-2013 |
20140002943 | DC GRID AND A METHOD OF LIMITING THE EFFECTS OF A FAULT IN A DC GRID | 01-02-2014 |
20140022680 | CURRENT LIMITATION SYSTEM FOR LIMITING THE EFFECTS OF A FAULT IN A DC GRID AND A METHOD OF OPERATING A CURRENT LIMITATION SYSTEM - A current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part is provided, as well as a method of operating a current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part. | 01-23-2014 |
20140168840 | GATE CONTROL CIRCUIT, POWER MODULE AND ASSOCIATED METHOD - It is presented a gate control circuit comprising: a main gate unit arranged to supply, via a plurality of main gate unit outputs, a gate signal to respective gates of a plurality of power switches, for controlling a main current; and an auxiliary gate unit comprising an optical power converter for converting incoming optical power to an auxiliary electrical gate signal. The auxiliary gate unit is arranged to, when a failure occurs in one of the plurality of power switches, provide the auxiliary electrical gate signal to respective gates of any of the plurality of power switches still being in operation. A corresponding power module and method are also presented. | 06-19-2014 |
20140191793 | POWER SUPPLY FOR CONTROLLING A POWER SWITCH - It is presented a power supply for providing power to control a power switch for a high voltage application. The power supply comprises: a high voltage divider arranged to be connected to a first current terminal of the power switch; a step down DC/DC converter connected to an output of the high voltage divider, wherein the step down DC/DC converter is arrange to provide an output voltage for control of the at least one power switch to an output of the power supply; and a bypass control unit arranged to control the high voltage divider to short circuit an main input and a main output of the high voltage divider when the voltage across the power switch is lower than a threshold voltage. | 07-10-2014 |
20140203847 | RELIABILITY IN SEMICONDUCTOR DEVICE CONTROL - A gate control device for a semiconductor device includes at least one power supply module, at least one optical communication interface for receiving optical signals from two valve control units and converting them to electric signals for supply to a corresponding power supply module, where in normal operations mode one valve control unit is an active valve control unit and the other is a standby valve control unit, where the optical signal of an active unit energizes the gate control device and provides semiconductor device controlling data, a semiconductor device control module and a reliability control module that performs selection of active valve control unit. | 07-24-2014 |
20140313628 | HVDC HYBRID CIRCUIT BREAKER WITH SNUBBER CIRCUIT - A high voltage direct current (HVDC) hybrid circuit breaker is provided. The circuit breaker includes a solid-state main breaker, a mechanical fast disconnector and a solid-state auxiliary breaker connected in series, the series-connection of the disconnector and the auxiliary breaker being connected in parallel to the main breaker, a snubber circuit including a capacitor, and a switching device being arranged for disconnecting the snubber capacitor in response to the auxiliary breaker being opened. By disconnecting the snubber capacitor, an uncontrolled discharging of the capacitor through the disconnector and the main breaker, and the resulting non-zero current flowing through the disconnector during the breaking action, may be avoided. Further, a method of an HVDC hybrid circuit breaker is provided. | 10-23-2014 |
Norbert Häfner, Lappersdorf DE
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20130249396 | LUMINOUS DEVICE COMPRISING MULTIPLE SPACED-APART EMISSION REGIONS - A luminous device includes at least one radiation-emitting semiconductor chip including at least two emission regions arranged spaced apart in a lateral direction, wherein each emission region includes at least one active zone that emits electromagnetic radiation; and a drive device that operates the emission regions. | 09-26-2013 |
Norbert Höfner, Landshut DE
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20110030278 | Vertical-Lift Door Assembly And Lintel Sealing Unit Therefor - The invention relates to a lifting door assembly comprising a lifting door, in particular a fast-moving industrial door, having a door leaf which in the closed condition of the lifting door covers a door aperture, and a door lintel sealing device disposed in the area of a door lintel and mounted so as to produce a sealing effect between the door leaf and the door lintel in a sealing position when the lifting door is in the closed condition. The lifting door assembly is characterized in that the door leaf is guided laterally such that in the open position, it is wound free of contact in the area of a door lintel, and in that in the sealing position, the door lintel sealing device rests on a horizontal lateral edge surface of the door leaf adjacent the door lintel. The invention further relates to such a door lintel sealing device. The invention allows to improve a lifting door assembly such that particularly reliable sealing may be obtained with it in the area of the door lintel. | 02-10-2011 |
Norbert Höfner, Landshut DE
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20110030278 | Vertical-Lift Door Assembly And Lintel Sealing Unit Therefor - The invention relates to a lifting door assembly comprising a lifting door, in particular a fast-moving industrial door, having a door leaf which in the closed condition of the lifting door covers a door aperture, and a door lintel sealing device disposed in the area of a door lintel and mounted so as to produce a sealing effect between the door leaf and the door lintel in a sealing position when the lifting door is in the closed condition. The lifting door assembly is characterized in that the door leaf is guided laterally such that in the open position, it is wound free of contact in the area of a door lintel, and in that in the sealing position, the door lintel sealing device rests on a horizontal lateral edge surface of the door leaf adjacent the door lintel. The invention further relates to such a door lintel sealing device. The invention allows to improve a lifting door assembly such that particularly reliable sealing may be obtained with it in the area of the door lintel. | 02-10-2011 |
Stefan Häfner, Speyer DE
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20120028333 | USE OF ENZYMES TO REDUCE ALDEHYDES FROM ALDEHYDE-CONTAINING PRODUCTS - The invention relates to the use of an enzyme preparation which catalyzes the degradation of formaldehyde for reducing the formaldehyde content in a formaldehyde-containing formulation. In a preferred embodiment, the enzyme preparation contains a formaldehyde dismutase from a | 02-02-2012 |
Stefan Häfner, Ludwigshafen DE
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20100015674 | Methods For The Preparation of Lysine By Fermentation Of Corynebacterium Glutamicum - The present invention features methods of increasing the production of a fine chemical, e.g., lysine from a microorganism, e.g., | 01-21-2010 |
Stefan Häfner, Ludwigshafen DE
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20080280333 | Use of the repressor glxR for the synthesis of lysine in corynebacterium glutamicum - Isolated polypeptide sequence having the sequence of SEQ ID NO:1 or muteins thereof having the ability to bind cAMP and repress the expression of the aceB gene of | 11-13-2008 |
20100015674 | Methods For The Preparation of Lysine By Fermentation Of Corynebacterium Glutamicum - The present invention features methods of increasing the production of a fine chemical, e.g., lysine from a microorganism, e.g., | 01-21-2010 |
Volker Häfner, Langenselbold DE
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20090192309 | PROCESS FOR PREPARING TRIALLYL CYANURATE - The invention relates to an improved process for preparing triallyl cyanurate (TAC) by reacting cyanuric chloride with allyl alcohol in the presence of an alkali metal acid acceptor and in the absence of an organic solvent other than allyl alcohol. According to the invention, TAC is obtained in over 99% purity with an APHA colour number below 10 in a yield of over 90% when 3.9 to 6.0 mol of allyl alcohol and 3.0 to 3.2 equivalents of acid acceptor are used per mole of cyanuric chloride, cyanuric chloride and acid acceptor are added simultaneously or successively to anhydrous or at least 50% by weight aqueous allyl alcohol, and the reaction is performed in one or more stages at a temperature in the range of −5 to +50° C. | 07-30-2009 |
Volker Häfner, Langenselbold DE
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20090192309 | PROCESS FOR PREPARING TRIALLYL CYANURATE - The invention relates to an improved process for preparing triallyl cyanurate (TAC) by reacting cyanuric chloride with allyl alcohol in the presence of an alkali metal acid acceptor and in the absence of an organic solvent other than allyl alcohol. According to the invention, TAC is obtained in over 99% purity with an APHA colour number below 10 in a yield of over 90% when 3.9 to 6.0 mol of allyl alcohol and 3.0 to 3.2 equivalents of acid acceptor are used per mole of cyanuric chloride, cyanuric chloride and acid acceptor are added simultaneously or successively to anhydrous or at least 50% by weight aqueous allyl alcohol, and the reaction is performed in one or more stages at a temperature in the range of −5 to +50° C. | 07-30-2009 |