Patent application number | Description | Published |
20090027815 | Protective Device Having a Circuit Breaker, in Particular a Low-Voltage Circuit Breaker - A protective device is disclosed having a circuit breaker for an electrical connection between a transformer and a load, wherein an overcurrent device is arranged between the transformer and the load. The overcurrent device has first magnetoelectric transducers arranged at each phase conductor and the neutral conductor, wherein the overcurrent device uses the transducer currents to in each case establish the presence of a first ground-fault current, and wherein the circuit breaker has a switching device, which interrupts at least the phase conductors between the transformer and the load in the event of the presence of a first ground-fault current (unrestricted earth fault). In order to also be able to determine the ground fault current between the transformer and the circuit breaker, at least one embodiment of the invention proposes providing in each case second magnetoelectric transducers at each phase conductor, the neutral conductor and a star-point conductor which is connected to the star point, using the transducer currents of the second transducer in each case to determine the presence of a second ground-fault current (restricted earth fault), and forming a signal for disconnecting the transformer in the event of the presence of a second ground-fault current. | 01-29-2009 |
20100097731 | METHOD FOR THE AUTOMATIC ADJUSTMENT OF A PROTECTIVE DEVICE HAVING AN EXCESS-CURRENT RELEASE, PARTICULARLY A LOW-VOLTAGE CIRCUIT BREAKER - One embodiment of the present invention discloses a method for the automatic adjustment of a protective device having an excess-current release, particularly a low-voltage circuit breaker, which includes an asynchronous motor as a load, said motor requiring protection from overload, and also protects the energy distribution system from a short circuit, wherein at least one release time Tp is to be set as a parameter on the excess-current release, the time ensuring that thermal overload of the asynchronous motor does not occur. In order to enable an automatic adjustment of the excess-current release, the invention proposes that the integral of the square of the motor current over the time be determined based on the temporal current progression of the asynchronous motor at a given load, particularly at nominal load, after connecting or reversing, and that from the integral the trigger time of the excess-current release is derived, in that the integral corresponding to the heating of the asynchronous motor is placed in relation to a predetermined multiple of the square of the nominal current, wherein the motor current progression includes at least the starting current, the transition, and the self-adjusting motor nominal current. | 04-22-2010 |
Patent application number | Description | Published |
20080310803 | Fibre Optic Ribbon with Several Individual Optical Fibres and Method for Production Thereof - A fibre optic ribbon has several individual optical fibres, provided, for example, for application of the ribbon conductor as flex sensor trip, with surface-treated partial regions in which individual optical fibres can be provided. The individual fibres are arranged in a support strip with a space between, such that a treatment of the individual fibres, which permits a particularly simple execution of the surface treatment. The individual fibres are treated with removal of the support strip in the partial regions and finally the support strip is provided with a sleeve. Additional passive optical fibres can be inserted in the spaces for protection of the individual fibres during the surface treatment which give additional protection to the individual fibres. | 12-18-2008 |
20090230578 | Method for production of a band with several parallel optical fibers - In a method for the production of optical bands with several optical fibers, the surface of the optic fibers in said bands is treated such as to increase the optical damping in sections of the optic fibers. The generated damping may be reliably adjusted, whereby during (or after) the processing of the surfaces a measuring light is introduced into the fiber optic and the light output at the other end of the band is measured by means of a sensor such as a CCD camera. Possible production errors can thus be compensated for during the production process, for example, by an increased process time for the optic fiber. Optical sensor bands can be produced by the above method for application in the bumpers of motor vehicles as recognition sensors for the impact of a pedestrian. Other applications in which the bending of a sensor band is to be determined by optical means are also envisaged. | 09-17-2009 |
20100195950 | Optical Sensor Fiber Having Zone Which is Sensitive to Bending, Sensor Having Such Sensor Fiber, and Method for Producing - An untreated fiber section in an optical sensor fiber has a zone which is framed by surface-treated fiber sections, thus making it possible to determine, by metrology, a mixture of light modes in the untreated fiber section that depends on bending. This advantageously makes it possible to measure the bending in the optical sensor fiber in a very accurate manner. The optical sensor fiber may be used in sensor having a laser diode and a photodiode. | 08-05-2010 |
20110095443 | Method for Producing an Optical Fiber Strip Comprising Several Inidividual Optical Fibers - The invention relates to a method for creating a fibre strip ( | 04-28-2011 |
20130063951 | OPTICAL DISPLAY ELEMENT AND DISPLAY DEVICE - A display element and a display device in which the display element is mounted. The display may be a variable message sign. The sign includes a tube-like housing in which lenses and apertures can be disposed. The light exiting a light source is emitted via an emitting surface, by way of which an illuminated traffic sign results from interacting with further display elements. The light source and the optical elements are disposed at different heights in the horizontally oriented housing. The optical axes can thereby extend horizontally, or the optical elements can lie on a main axis which is tilted downward in an radiation direction. In both cases, sunlight impinging from above at an angle advantageously falls on the LED to a slight degree, by way of which the phantom light phenomenon is minimized. | 03-14-2013 |
Patent application number | Description | Published |
20100166681 | Anhydrous Multiphase Gel System - An anhydrous multiphase gel system consisting of an outer lipid matrix and an inner phase gelled by means of a polymer is described, which can be obtained by a) Melting the lipid phase with the formation of a liquid lipid phase, b) Mixing and homogenizing polymers or polymer blends capable of swelling with the formation of a polymer phase to be dispersed, c) Combining the polymer phase with the liquid lipid phase and homogenizing the phases, and d) Cold stirring the phase mixture until a solid gel-like mixed structure of the entire system is formed. The anhydrous multiphase gel system is particularly suitable for taking up difficultly soluble active substances in high concentration and for providing topical and transdermal applications. The described system is called an EDRS, “Entrapped Drug Reservoir System”. | 07-01-2010 |
20110027369 | PHARMACEUTICAL COMPOSITION IN THE FORM OF A HYDROGEL FOR TRANSDERMAL ADMINISTRATION OF ACTIVE INGREDIENTS - The invention relates to a pharmaceutical composition in the form of a hydrogel that comprises a carboxylic acid diester, a C | 02-03-2011 |
20140186278 | ANHYDROUS MULTIPHASE GEL SYSTEM - An anhydrous multiphase gel system consisting of an outer lipid matrix and an inner phase gelled by means of a polymer is described, which can be obtained by a) Melting the lipid phase with the formation of a liquid lipid phase, b) Mixing and homogenizing polymers or polymer blends capable of swelling with the formation of a polymer phase to be dispersed, c) Combining the polymer phase with the liquid lipid phase and homogenizing the phases, and d) Cold stirring the phase mixture until a solid gel-like mixed structure of the entire system is formed. The anhydrous multiphase gel system is particularly suitable for taking up difficulty soluble active substances in high concentration and for providing topical and transdermal applications. The described system is called an EDRS, “Entrapped Drug Reservoir System”. | 07-03-2014 |