Patents by Inventor Jorg-Uwe Dahl
Jorg-Uwe Dahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8378243Abstract: An arrangement including at least two separate switch pole housings and a joining facility for joining the switch pole housings. Each of the switch pole housings forms an insulating enclosure of a switching space for receiving a single switch pole of an electric switching device. A side wall of a first switch pole housing, facing a second one of the switch pole housings, includes at least one recess for receiving at least one joining device of the joining facility. The at least one recess forms a first undercut with respect to a side wall and a first locating surface in parallel with a front wall of the housing. The at least one joining device engages behind the first undercut and is braced against a first locating surface.Type: GrantFiled: September 28, 2010Date of Patent: February 19, 2013Assignee: Siemens AktiengesellschaftInventors: Torsten Ahlert, Jörg-Uwe Dahl, Ludvik Godesa, Marc Liebetruth
-
Publication number: 20120199452Abstract: A switching device include at least two switching poles. Each of the switching poles has one current path and one switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system of the switching poles has an integral switching shaft segment, formed from insulating material, which bears a contact lever arrangement and in which the switching shaft segments of adjacent switching poles are connected by way of at least two connecting branches; so as to form the switching shaft. The connecting branches extending at a distance parallel to the axis of rotation and are formed from corresponding connecting elements. In at least one embodiment, all of the connection elements of the at least two connecting branches are formed by first sections of the integral switching shaft segments, which bear the contact lever arrangements.Type: ApplicationFiled: October 15, 2010Publication date: August 9, 2012Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Jörg-Uwe Dahl, Ludvik Godesa, Andreas Hierl, Siegfried Pirker, Thomas Pniok
-
Publication number: 20120073945Abstract: A multipole electrical switching device is disclosed with an outer housing in which at least two separate switching pole housings are accommodated. In at least one embodiment, the at least two separate switching pole housings on walls facing towards one another, each have a least one mounting which form a mounting pair assigned to one another. In at least one embodiment, for mechanical connection of the at least two separate switching pole housings, the mounting pair is assigned at least one connection device which engages into the two mountings forming the mounting pair. The two mountings forming the mounting pair, in relation to a dividing joint formed between the two facing walls, each form an undercut, whereby the at least one connecting device engages behind the undercuts and the at least one connecting device is formed in a primary process in one piece on the outer housing.Type: ApplicationFiled: September 26, 2011Publication date: March 29, 2012Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Torsten Ahlert, Jörg-Uwe Dahl, Ludvik Godesa, Marc Liebetruth, Milos Petracek
-
Patent number: 8089016Abstract: A circuit breaker is disclosed, in particular for low voltages, with moving and fixed contacts, a switching shaft and a contact lever. The contact lever is rotatably mounted on or in the switching shaft, and includes a free end that extends from the switching shaft, carries the contact piece of the moving contact on one side of its external contour and has a first depression on the other opposite side of the external contour for engaging a bolt. In at least one embodiment, the contact lever is subjected to a torsional moment in the closing direction by means of the bolt in each case.Type: GrantFiled: August 19, 2009Date of Patent: January 3, 2012Assignee: Siemens AktiengesellschaftInventors: Jörg-Uwe Dahl, Ludvik Godesa
-
Patent number: 8063334Abstract: The switching device of at least one embodiment includes at least two switching contacts for interruption of a current path, with the switching contacts being arranged in a quenching chamber in order to quench an arc which is struck on opening. The quenching chamber opens into a gas outlet channel for overpressure which is produced during the striking of the arc to escape from. A pressure sensor for pressure detection is provided in the gas outlet channel and trips a switching mechanism, which is at least indirectly connected thereto, of the switching device on reaching a predeterminable pressure value. According to at least one embodiment of the invention, the gas outlet channel includes a Venturi nozzle. A reduced pressure, which is created in the Venturi nozzle as the gas flow passes through, is detectable by way of the pressure sensor.Type: GrantFiled: January 14, 2009Date of Patent: November 22, 2011Assignee: Siemens AktiengesellschaftInventor: Jörg-Uwe Dahl
-
Publication number: 20110073448Abstract: An arrangement includes at least two separate switch pole housings and a joining facility for joining the switch pole housings. In at least one embodiment, each of the switch pole housings forms an insulating enclosure of a switching space for receiving a single switch pole of an electric switching device which has a lower wall, an upper wall, two side walls, a rear wall and a front wall and in which at least a first one of the two switch pole housings has on a first one of the side walls, facing the second one of the switch pole housings, at least one recess for receiving at least one joining device of the joining facility.Type: ApplicationFiled: September 28, 2010Publication date: March 31, 2011Inventors: Torsten Ahlert, Jörg-Uwe Dahl, Ludvik Godesa, Marc Liebetruth
-
Publication number: 20100044196Abstract: A circuit breaker is disclosed, in particular for low voltages, with moving and fixed contacts, a switching shaft and a contact lever. The contact lever is rotatably mounted on or in the switching shaft, and includes a free end that extends from the switching shaft, carries the contact piece of the moving contact on one side of its external contour and has a first depression on the other opposite side of the external contour for engaging a bolt. In at least one embodiment, the contact lever is subjected to a torsional moment in the closing direction by means of the bolt in each case.Type: ApplicationFiled: August 19, 2009Publication date: February 25, 2010Inventors: Jörg-Uwe Dahl, Ludvik Godesa
-
Publication number: 20090194510Abstract: The switching device of at least one embodiment includes at least two switching contacts for interruption of a current path, with the switching contacts being arranged in a quenching chamber in order to quench an arc which is struck on opening. The quenching chamber opens into a gas outlet channel for overpressure which is produced during the striking of the arc to escape from. A pressure sensor for pressure detection is provided in the gas outlet channel and trips a switching mechanism, which is at least indirectly connected thereto, of the switching device on reaching a predeterminable pressure value. According to at least one embodiment of the invention, the gas outlet channel includes a Venturi nozzle. A reduced pressure, which is created in the Venturi nozzle as the gas flow passes through, is detectable by way of the pressure sensor.Type: ApplicationFiled: January 14, 2009Publication date: August 6, 2009Inventor: Jorg-Uwe Dahl
-
Patent number: 7064640Abstract: The invention relates to a low voltage circuit breaker which comprises a contact system for a principal current and an arc extinction chamber. An are transmitting element is disposed between the contact system for the principal current and the arc extinction chamber. Said are transmitting element comprises at least one are guiding element which makes it possible to direct said arc in a certain manner to the arc extinction chamber.Type: GrantFiled: August 28, 2003Date of Patent: June 20, 2006Assignee: Siemens AktiengesellschaftInventors: Jörg-Uwe Dahl, Hans-Joachim Kuhrt, Detlev Schmidt, Günter Seidler, Ingo Thiede, Sezai Türkmen
-
Publication number: 20060044091Abstract: The invention relates to a low voltage circuit breaker which comprises a contact system for a principal current and an arc extinction chamber. An arc transmitting element is disposed between the contact system for the principal current and the arc extinction chamber. Said arc transmitting element comprises at least one arc guiding element which makes it possible to direct said arc in a certain manner to the arc extinction chamber.Type: ApplicationFiled: August 28, 2003Publication date: March 2, 2006Inventors: Jorg-Uwe Dahl, Hans-Joachim Kuhrt, Detlev Schmidt, Gunter Seidler, Ingo Thiede, Sezai Turkmen
-
Patent number: 6870113Abstract: A latching mechanism is for locking a spring energy store of an electric switching device. The store is tensioned by a rotary drive and an extensible lever system. In the latching mechanism, the extensible lever system is locked with the spring energy store under tension by way of a support element, an auxiliary lock and a primary lock, in addition to a stop that is allocated to the primary lock. The auxiliary lock can be pivoted by the extension of the lever system and the position of the primary lock during the pivoting of the auxiliary lock can be influenced by working surfaces that are allocated to one another. To configure the locking mechanism for pivoting the primary lock in a manner which obviates the use of a return spring that acts on said primary lock, the auxiliary lock and the primary lock respectively have at least two working surfaces.Type: GrantFiled: March 26, 2002Date of Patent: March 22, 2005Assignee: Siemens AktiengesellschaftInventors: Jörg-Uwe Dahl, Ludvik Godesa, Ralph Hohenberger, Marc Liebetruth
-
Patent number: 6831240Abstract: A drive train is for a displaceable contact on a breaker contact arrangement in an electrical power breaker. A coupling element displaceable against a stop and arranged between the moveable contact and corresponding drive element is provided with an anti-bounce device, including a catch element and a counter piece. The catch element which may be swung into a catch position as a result of the inertia exerted on the centre of gravity thereof, when the coupling element strikes the stop, includes a working surface extending in the pivoting direction to forma momentary working connection with the counter piece. A retaining spring is additionally provided on the catch element to guarantee that a rebounding of the coupling element into the position corresponding to the close state of the breaker contact arrangement does not occur.Type: GrantFiled: May 23, 2003Date of Patent: December 14, 2004Assignee: Siemens AktiengesellschaftInventors: Michael Bach, Jörg-Uwe Dahl, Ludvik Godesa, Ralph Hohenberger, Marc Liebetruth, Detlev Schmidt, Günter Seidler, Ingo Thiede, Sezai Türkmen, Artur Wajnberg
-
Publication number: 20040134764Abstract: The invention relates to a drive train for a displaceable contact (1) on a breaker contact arrangement in an electrical power breaker, whereby a coupling element (3), displaceable against a stop (12) and arranged between the moveable contact (1) and corresponding drive element (8), is provided with an anti-bounce device, comprising a catch element (13) and a counter piece (14). The catch element (13) which may be swung into a catch position as a result of the inertia exerted on the centre of gravity (16) thereof, when the coupling element (3) strikes the stop (12), comprises a working surface (22) extending in the pivoting direction (23) to form a momentary working connection with the counter piece (14). A retaining spring (32) is additionally provided on the catch element (13) to guarantee that a rebounding of the coupling element (3) into the position corresponding to the closed state of the breaker contact arrangement does not occur.Type: ApplicationFiled: May 23, 2003Publication date: July 15, 2004Inventors: Michael Bach, Jorg-Uwe Dahl, Ludvik Godesa, Ralph Hohenberger, Marc Liebetruth, Detlev Schmidt, Gunter Seidler, Ingo Thiede, Sezai Turkmen, Artur Wainberg
-
Patent number: 6492888Abstract: A low-voltage circuit breaker has a contact arrangement, a drive mechanism for actuating the contact arrangement , and an actuating shaft, which is used for transmitting a drive force from the drive mechanism to the contact arrangement. A bearing device for the actuating shaft has at least one bearing body, which is connected to a pole component accommodating the contact arrangement. Thus a unit is formed, which can be tested independently of the other components of the circuit breaker. In the case of multipole circuit breakers, a common actuating shaft is used for all contact arrangements and pole components, which is mounted approximately in the center of the main bearing body and near the ends of the auxiliary bearing bodies.Type: GrantFiled: September 29, 2000Date of Patent: December 10, 2002Assignee: Siemens AktiengesellschaftInventors: Jörg-Uwe Dahl, Ludvik Godesa, Marc Liebetruth
-
Publication number: 20020053963Abstract: A low-voltage circuit breaker has a contact arrangement (19), a drive mechanism (20) for actuating the contact arrangement (19), and an actuating shaft (2), which is used for transmitting a drive force from the drive mechanism (20) to the contact arrangement (19). A bearing device for the actuating shaft (2) has at least one bearing body (1), which is connected to a pole component (4) accommodating the contact arrangement (19). Thus a unit is formed, which can be tested independently of the other components of the circuit breaker. In the case of multipole circuit breakers, a common actuating shaft (2) is used for all contact arrangements (19) and pole components (4), which is mounted approximately in the center of the main bearing body (1) and near the ends of the auxiliary bearing bodies (8, 9).Type: ApplicationFiled: September 29, 2000Publication date: May 9, 2002Inventors: Jorg-Uwe Dahl, Ludvik Godesa, Marc Liebetruth
-
Patent number: 6380830Abstract: A low-voltage circuit breaker includes a retrofittable motor reset mechanism. Its output shaft can be coupled to a charging shaft, mounted in a bearing block, of the spring energy store of the low-voltage circuit breaker. Centering elements are provided on a flange of the bearing block of the charging shaft of the spring energy store so as to engage in mating elements on the gearbox output of the motor reset mechanism, in such a way that the motor reset mechanism can be pushed axially into these centering elements with little movement in the direction of the charging shaft. In order to lock the motor reset mechanism in the pivoting direction, a fixing element is provided at a point fitted at a specific distance from the centering elements. The motor reset mechanism is fixed axially in the centering elements of the flange of the bearing block of the charging shaft of the spring reset mechanism, and in the coupling of the charging shaft.Type: GrantFiled: January 9, 2001Date of Patent: April 30, 2002Assignee: Siemens AktiengesellschaftInventors: Jörg Uwe Dahl, Ludvik Godesa, Marc Liebetruth
-
Insertable and retractable switching device comprising a blocking bar which prevents wrong operation
Patent number: 6252186Abstract: A switching device has a closing device and a traversing mechanism for insertion and retraction relative to an insertion frame, where the said devices can be operated only in the OFF state of the switching device. A blocking bar having a cam element that cooperates with a carrier of an OFF operator is guided by elongated holes behind an operator's console of the switching device. The carrier and the cam element work together in such a way that the OFF operator can be pulled inward when the blocking bar is operated, thus signaling to the user that the switching device is locked in the OFF state.Type: GrantFiled: May 5, 2000Date of Patent: June 26, 2001Assignee: Siemens AktiengesellschaftInventors: Marc Liebetruth, Torsten Ahlert, Ludvik Godesa, Jörg-Uwe Dahl