| Patent application number | Description | Published |
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| 20090127229 | SWITCHING DEVICE FOR DIRECT-CURRENT APPLICATIONS - A switching device for direct-current applications includes a housing having a first wall and a second wall, a plurality of receiving areas for respective mutually substantially parallel current paths disposed in the housing. Each of the current paths has a respective stationary switching contact element and a respective movable switching contact element, the movable switching element being actuatable into a closed position and into an open position so as to form a respective air break, the respective movable switching contact elements being actuatable simultaneously. The switching device includes a plurality of arc-quenching devices associated with the current paths and disposed next to each other, and at least one magnet. The at least one magnet is configured to generate a magnetic field so as to generate a deflection force on the arcs so as to deflect the respective arcs toward at least one of the respective arc-quenching devices. | 05-21-2009 |
| 20090127230 | SWITCHING DEVICE FOR DIRECT-CURRENT APPLICATIONS - A switching device for direct-current applications including a housing, and at least three current paths. Each current path includes a respective movable switching contact element, a respective stationary switching contact element, and a respective air break between the respective movable and stationary contact elements. Each movable switching contact element is movable into a closed position and into an open position. The switching device includes a quenching capacitor connected in parallel to the respective at least one air break of a first of the current paths and configured to at least one of prevent the formation of an arc and quench an arc formed therealong. The quenching capacitor is not coupled to a second of the current paths. The second current path is couplable in series to the first current path. | 05-21-2009 |
| 20100326809 | Safety switchgear for solar plants - The invention achieves the objective of ensuring that a solar installation mounted on a unit such as, for example, a residential house, can be safely switched off cost-effectively, whereby the consumers are to be galvanically disconnected from the solar installation, and the feed lines leading to the consumers are to be de-energized in case the safety switchgear has triggered a switch-off. A safety switchgear for a solar installation is proposed, whereby the solar installation consists of at least one photovoltaic element, of two connections, each to a feed line leading to a consumer, and said safety switchgear has a bypass that is situated between the two connections and upstream from the feed lines and that has at least one switching mechanism to close the contact points, whereby at least one additional switching mechanism for purposes of opening the contact points is arranged in each of the two feed lines. The invention is characterized in that the at least one switching mechanism in the bypass and the additional switching mechanisms present in each feed line of the photovoltaic installation are arranged, and can be jointly actuated by means of a coupler, in such a way that, when the safety switchgear is actuated, first the contact points of the at least one switching mechanism in each one of the two feed lines is opened and subsequently, with a time delay, the contact points of the at least one switching mechanism, which is situated in the bypass, are closed. | 12-30-2010 |
| 20130206729 | SWITCH UNIT WITH ARC-EXTINGUISHING UNITS - A switch suitable for DC applications includes: two fixed conductive contacts with first contact areas; a movable conductive bridge with two second contact areas for being connected to the two first contact areas in the on-status and for being disconnected from the two the first contact areas in the off-status; and two arc-extinguishing units configured to extinguish electric arcs occurring between the first and second contact areas after disconnecting the second contact areas from the first contact areas. First conductive arc-guiding elements extend from each first contact area into the corresponding arc-extinguishing unit and at least one second conductive arc-guiding element extends into the arc-extinguishing units suitably shaped to guide the electric arcs from each of the second contact areas of the movable bridge into the arc-extinguishing units. | 08-15-2013 |
| 20130264310 | SWITCH HAVING A QUENCHING CHAMBER - A switch for polarity-independent multi-pole direct current operation includes at least two switching chambers. Each switching chamber includes a single circuit breaker with a stationary contact having a first contact region and a movable electrically conductive contact part having a second contact region. The stationary contact and movable contact part are configured to create a connection between the first and the second contact regions in the ON state and to disconnect the first and the second contact regions in the OFF state. Each chamber also includes two arc chutes for quenching an arc forming between the first and the second contact regions when switching to the OFF state. At least two magnets are configured to generate a magnetic field so as to exert a magnetic force on the arcs to divert each are in a direction of an arc chute independent of the direction of current. | 10-10-2013 |
| 20130264311 | SWITCH WITH QUENCHING CHAMBER - A switch for multi-pole direct current service independent of polarity includes a plurality of switching chambers. Each chamber includes a double interrupter having two separate fixed contacts with a first contact area, a movable contact piece with two second contact areas, each for creating a connection between the contact areas in an ON state and for separating the contact areas in an OFF state, and at least two quenching devices for quenching arcs occurring, when the OFF state is brought about. The switch also includes magnets for exerting a magnetic field in an area of the contact areas to exert a magnetic force on the arcs and drive the arcs, independent of their current direction, in the direction of one of the erasing devices. The contact pieces are disposed with the second contact areas essentially in a line perpendicular to a direction of motion of the arcs. | 10-10-2013 |
| 20130313228 | SWITCH WITH QUENCHING CHAMBER - A switch for polarity-independent direct current operation includes fixed contacts, each including a first contact area. A movable bridge contact with second contact areas is configured to form an electrically conducting connection between the contact areas in an ON state and to separate the contact areas in an OFF state. A magnetic field exerts a magnetic force on an arc occurring between the contact areas when the OFF state is generated. Quenching chambers are provided to quench arcs with a first current direction. A first arc deflector plate extends from each of the quenching chambers toward the first contact area and a second arc deflector plate extends toward the second contact area for removing the arc into the quenching chambers. Each movable bridge contact includes two bridge plates which extend around each of the first contact areas so as to quench arcs in a second direction. | 11-28-2013 |
| 20140151338 | CONTACTOR FOR DC OPERATION - A contactor for DC operation includes a first and a second contact that are fixed contacts and a contact bridge that has a third and a fourth contact. The contact bridge, in a closed position, provides a tactile contact between a first contact pair, which comprises the first and the third contact, and between a second contact pair, which comprises the second and the fourth contact. The contact bridge is movable via a guide along a direction of movement. A magnet arrangement is configured to generate an electromagnetic force on an electric arc, which arises on opening the contacts. The contact bridge has at least one recess, which is arranged between the guide and the third contact. The recess is configured to provide an opening at the contact bridge through which the arc, generated at the third contact, is deflected in the direction of movement of the contact bridge. | 06-05-2014 |
| 20140166620 | POLARITY INDEPENDENT SWITCHING DEVICE FOR CARRYING AND DISCONNECTING DIRECT CURRENT - A polarity-independent switching device for carrying and disconnecting high DC currents has a gastight, encapsulated, electrically insulating housing which can be filled with an insulating gas, and at least one pair of contacts disposed in the housing and made up of a fixed contact and a mobile contact. The two contacts are in contact with each other in a switched-on state of the switching device and are not in contact in a switch-off state of the switching device. An arc driver arrangement is included which generates a magnetic field at least in the region of the pair of contacts, as well as a first arc routing arrangement with which an arc produced between the contacts is guided in a first current direction to a quenching area arranged at a distance from the contacts. | 06-19-2014 |
| 20140175056 | SWITCHING DEVICE SUITABLE FOR DIRECT CURRENT OPERATION - A switching device includes at least a first current path and a second current path, each of which have a first connection and a second connection, whereby the first connections are arranged on the first side of the switching device and the second connections on the second side of the switching device, each current path has at least one contact pair, that has a first contact and a second contact, whereby at least the second contact is arranged on a contact member that is movable to the first contact and whereby in the switched-on status of the switching device, both the contacts are in contact with each other, each contact pair has at least one extinguishing device, whereby the extinguishing devices of both the current paths are arranged in a direction from the first connections to the second connections, behind one another and at least partly covering each other. | 06-26-2014 |
| 20140175057 | SWITCHING DEVICE - A switching device having at least one contact pair includes a first contact and a second contact, where at least the second contact is movable relative to the first contact. There is an extinguishing device with at least one extinguishing chamber for extinguishing an arc produced between the contacts, a first guide rail arrangement for guiding the arc with one direction of current and a second guide rail arrangement for guiding the arc with the second direction of current in said extinguishing chamber. Both guide rail arrangements have a first guide rail and a second guide rail, where both first guide rails starting from the first contact run in the opposite direction, and both second guide rails starting from the second contact run in the opposite direction. The first guide rails are connected with each other in an electrically conductive arrangement in the form of a closed loop. | 06-26-2014 |
| 20140175062 | ELECTRICAL SWITCHING DEVICE - Electrical switching device having a housing, at least two switching chambers within the housing with contacts to interrupt at least one current path, an arc extinguishing device for each switching chamber, and at least one guide channel within the housing, which directs the arc gas exiting the arc extinguishing device towards at least one of the exhaust openings to allow the arc gases to exit the housing, whereby each switching chamber has a guide channel, and whereby the guide channels of the different switching chambers are separated from each other. | 06-26-2014 |
| 20140263186 | SWITCH FOR DIRECT CURRENT OPERATION HAVING AT LEAST ONE CIRCUIT BREAKER CHAMBER - A switch for, in particular, direct current operation, having at least one circuit breaker chamber, each circuit breaker chamber having two contact pieces having respectively a first contact area, an electrically conductive bridge circuit which can be moved with a contact bridge and which has two second contact regions for establishing an electrically conductive connection between the first and the second contact regions and for separating at least one of the two contact regions from the respective first contact region, in addition to at least two magnets for generating a magnetic field, and an additional magnet for influencing the magnetic field is arranged on the moveable contact bridge. | 09-18-2014 |
| 20140284310 | SWITCH FOR DIRECT CURRENT OPERATION HAVING AT LEAST ONE CIRCUIT BREAKER CHAMBER - A switch for, in particular, direct current operation, having at least one circuit breaker chamber, each circuit breaker chamber having two contact pieces having respectively a first contact area, an electrically conductive bridge circuit which can be moved by means of a contact bridge and which has two contact regions for establishing an electrically conductive connection between the first and second contact regions and for separating at least one of the two contact regions from the respective first contact region, in addition to at least two magnets for generating a magnetic field. | 09-25-2014 |
| 20140347151 | SWITCHING DEVICE SUITABLE FOR DIRECT-CURRENT OPERATION - A switching device having a housing; a first and second contact, at least one of the contacts movable, both in contact when switched-on and not in contact when switched-off; an arc driver assembly producing a magnetic field at least in the area of the contact pair; a first arc conducting assembly which produces an arc between the contacts in a first current direction conducted to a first quenching apparatus for quenching the arc; and a second arc conducting assembly which produces an arc between the contacts with a second current direction opposite the first current direction conducted to a second quenching apparatus, the two arc conducting assemblies each comprising at least two conducting plates, of which at least a first is immovably in the housing and a second is connected at least partially rigidly to a bridge assembly and is movably arranged in the housing. | 11-27-2014 |
| 20140360982 | SWITCHING DEVICE WHICH IS SUITABLE FOR DC OPERATION - A switching device suitable for DC operation includes at least one pair of contacts having a first contact and a second contact, wherein at least one of the two contacts is mobile and the two contacts are in contact with one another in a switched-on state of the switching device and are not in contact with one another in a switched-off state of the switching device, further having an arc driver arrangement for generating a magnetic field and an arc guiding arrangement for guiding an arc, which is produced between the contacts, to a quenching device. The problem of quenching arcs independently of the current direction in just one individual quenching apparatus in each case is solved with a substantially homogeneous magnetic field which is generated by permanent magnets. | 12-11-2014 |
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| 20080294217 | MEDICAL DEVICE FOR MONITORING BIOLOGICAL SIGNALS - A medical device having a sensor for sampling a biological signal, the biological signal representing a signal waveform and forming a waveform vector composed of the biological signal samples, and a memory for storing a least two threshold vectors composed of boundary samples representing at least two boundaries related to the biological signal defining subspaces for the biological signal samples. One threshold vector is an upper threshold vector composed of upper boundary samples and the other threshold vector is a lower threshold vector composed of lower boundary samples. An evaluation unit connected to the sensor determines a similarity index (ASCI) by comparing each of the biological signal samples of the waveform vector to corresponding boundary samples of the threshold vectors, thus determining to which subspace each biological signal sample belongs to and creating a trichotomized signal vector, and calculating the signed correlation product of two trichotomized signal vectors. | 11-27-2008 |
| 20090030487 | IMPLANTABLE DEVICE SYSTEM - An implantable device system comprising an implantable medical device, an external transceiver device and a service center. The implantable medical device comprises a battery and an electronic module including a stimulation pulse generator, a sensing stage, a control unit adapted to collect data representing values of operational parameters (e.g. peak or average current consumption, high/low/average voltage level) of the battery and the electronics. The external transceiver device comprises an external transceiver unit and a data communication interface and the service center comprises another data communication interface adapted to allow data communication with the external transceiver device. Service center includes a central database adapted to store data received from the external transceiver per implantable medical device over time, a data evaluation module adapted to evaluate including trending of data stored in the database and a user interface adapted to display trended data and to receive user inputs. | 01-29-2009 |
| 20090062878 | HEART MONITORING SYSTEM - Heart monitoring system includes implantable medical device and service center. Implantable medical device includes stimulation pulse generator, ventricular sensing stage, activity sensor, impedance determination unit with a constant current or voltage source to generate sub-threshold measuring current pulses having constant current strength or constant voltage, measuring unit for measuring a voltage corresponding to a current fed through a body, impedance value determination unit connected with measuring unit adapted to determine impedance value for each measuring current pulse, and perform intrathoracic impedance measurement, a control unit adapted to collect data representing values of changes, and initiate data transmission, implant transceiver unit communicating with the service center with a data evaluation module including data trending of stored data with a user interface and said data evaluation module adapted to allow a physician to set for each data trend trigger criteria for decompensation detection and generate a decompensation indicator signal. | 03-05-2009 |
| 20090099617 | IMPLANTABLE HEART STIMULATOR PROVIDING LONG TERM CARDIAC MONITORING WITH AUTOMATIC NOTIFICATION - An implantable medical device that continuously measures the patient's intracardiac ventricular impedance. Extracts cardiac performance information based on the intracardiac impedance, including amplitude, timing and variability of cardiac contraction function. The device records and analyses trends in the performance information. The device identifies changes, which exceed the selected threshold limits. In the event of an incipient crisis, the device transmits an alert message. | 04-16-2009 |
| 20090240298 | SWITCH POLARITY PACING TO IMPROVE CARDIAC RESYNCHRONIZATION THERAPY - The invention is directed to a heart stimulator for left-ventricular pacing comprising a left ventricular stimulation pulse generator connected or connectable to a single electrode lead for left ventricular stimulation having one or more electrodes for delivery of stimulation pulses to left ventricular myocardial heart tissue, said stimulation pulse generator being adapted to generate and deliver stimulation pulses of switchable polarity. The heart stimulator further comprises a control unit connected to the stimulation pulse generator for controlling the stimulation pulse generator and to trigger generation and delivery of stimulation pulses having a polarity controlled by said control unit, wherein the control unit is adapted to control said left ventricular stimulation pulse generator so as to deliver at least a pair of suprathreshold stimulation pulses of opposite polarity. | 09-24-2009 |
| 20100217143 | TECHNIQUE FOR DETERMINING SIGNAL QUALITY IN A PHYSIOLOGIC SENSING SYSTEM USING HIGH FREQUENCY SAMPLING - A medical device for processing physiological signals such as electrocardiograms. The processing includes: sampling a physiologic signal in a first channel with a first sampling rate, simultaneously sampling the physiologic signal in a second channel with a higher sampling rate to thus generate pairs of sampling values, forming the difference between two sampling values of each pair, comparing said difference with a threshold, and generating a noise detection indicator whenever said threshold is exceeded. | 08-26-2010 |
| 20120265087 | METHODS AND DEVICES FOR DETERMINATION OF HEART ARRHYTHMIA TYPE - The type of arrhythmia in a patient's heart can be determined by monitoring the atrial and ventricular rate of the heart; detecting a pathological initial ventricular and/or atrial rate during a first time period; if a pathological initial rate is detected, then administering at least one antiarrhythmic cardioactive drug over a short second time period; detecting the heart's response to the administered drug(s), as by comparing the responsive ventricular and atrial rates with the initial ventricular and atrial rates, respectively, within a third time period; and determining the type of atrial or ventricular arrhythmia from the presence or absence of differences, and the type of differences, between the responsive atrial and ventricular rates compared with the initial atrial and ventricular rates. The invention further involves a related device which includes an implantable cardiac device ( | 10-18-2012 |
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| 20130079839 | APPARATUS AND METHOD TO OPTIMIZE PACING PARAMETERS - The present disclosure refers to a heart stimulator comprising a stimulation control unit, a stimulation unit, an impedance measurement unit and an impedance evaluation unit. The stimulation control unit is operatively connected to the stimulation unit to control timing of stimulation pulses by said stimulation unit. The impedance measurement unit is configured to determine an impedance signal reflecting intracardiac impedance. The impedance evaluation unit is operatively connected to the impedance measurement unit and to the stimulation control unit and is configured to evaluate the impedance signal so as to determine an isovolumic contraction time, an isovolumic relaxation time, an ejection time and a filling time from said impedance signal. The stimulation control unit is further configured to control timing of stimulation pulses depending on a performance index. | 03-28-2013 |
| 20130116533 | LONG-TERM CUTANEOUS CARDIAC MONITORING - A system for long-term non-invasive heart monitoring includes (1) a disposable unit that has built-in electrodes, a built-in wire antenna, a watertight chamber that can be opened and closed, and an adhesive surface for cutaneous mounting; (2) an electronic controller that can acquire, process and store physiological signals, and can be fitted into the disposable unit to establish electrical contact with the built-in electrodes; and (3) a portable communication unit that can wirelessly communicate bi-directionally with the electronic controller, and further communicate bi-directionally with a remote service center. | 05-09-2013 |
| 20130274869 | IMPLANT AND METHOD FOR MANUFACTURING SAME - A method for manufacturing an implant and an implant, in particular an intraluminal endoprosthesis, including a body having a coating on at least a portion of the surface thereof, and the degradation of which can be influenced from the outside in a targeted manner, the method having the following steps:
| 10-17-2013 |
| 20140163892 | METHOD FOR DETERMINING IF AN IMPLANTABLE MEDICAL DEVICE IS MAGNETIC RESONANCE CONDITIONAL - A method for determining if an implantable medical device (IMD) in a patient is magnetic resonance conditional. Embodiments include a Home Monitoring Service Center (HMSC) that indicates if the IMD is MR conditional and what those conditions are. The IMD includes memory with flags, enabling a physician to set a flag to “MR conditional” if the IMD is MR conditional, if there are no abandoned leads in the patient, and if there are no other hardware in the patient that are not MR conditionally approved. In embodiments, the flags indicate safe for 1.5 T, 3.0 T, 1.5 & 3.0 T, up to 2 W/Kg, up to 4 W/Kg, with/without exclusion zone, and date flags are set. During home monitoring, the HMSC reads out a status of the MR conditional flags and the date last confirmed. If the patient needs an MRI scan, physician queries HMSC to determine MR conditional status. | 06-12-2014 |
