Patents by Inventor Rudolf Gati
Rudolf Gati 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).
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Patent number: 11694860Abstract: An arc chamber for a DC circuit breaker includes an entry side adapted to receive an electric arc, which was generated outside of the arc chamber and which propagates in a forward direction, a plurality of stacked splitter plates, and at least one inhibitor barrier. The at least one inhibitor barrier is arranged on the entry side to inhibit a reverse propagation of the electric arc out of the arc chamber in a reverse direction. DC circuit breaker comprising an arc chamber. Use of an arc chamber with a circuit breaker in a DC electrical system.Type: GrantFiled: December 3, 2021Date of Patent: July 4, 2023Assignee: ABB SCHWEIZ AGInventors: Rudolf Gati, Matthias Bator, Osvaldo Prestini, Pierluigi Cisana, Thorsten Strassel
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Publication number: 20220093348Abstract: An arc chamber for a DC circuit breaker includes an entry side adapted to receive an electric arc, which was generated outside of the arc chamber and which propagates in a forward direction, a plurality of stacked splitter plates, and at least one inhibitor barrier. The at least one inhibitor barrier is arranged on the entry side to inhibit a reverse propagation of the electric arc out of the arc chamber in a reverse direction. DC circuit breaker comprising an arc chamber. Use of an arc chamber with a circuit breaker in a DC electrical system.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Inventors: Rudolf Gati, Matthias Bator, Osvaldo Prestini, Pierluigi Cisana, Thorsten Strassel
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Patent number: 11195673Abstract: An arc chamber for a DC circuit breaker includes an entry side adapted to receive an electric arc, which was generated outside of the arc chamber and which propagates in a forward direction, a plurality of stacked splitter plates, and at least one inhibitor barrier. The at least one inhibitor barrier is arranged on the entry side to inhibit a reverse propagation of the electric arc out of the arc chamber in a reverse direction. DC circuit breaker comprising an arc chamber. Use of an arc chamber with a circuit breaker in a DC electrical system.Type: GrantFiled: October 14, 2019Date of Patent: December 7, 2021Assignee: ABB SCHWEIZ AGInventors: Rudolf Gati, Matthias Bator, Osvaldo Prestini, Pierluigi Cisana, Thorsten Strassel
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Publication number: 20200043676Abstract: An arc chamber for a DC circuit breaker includes an entry side adapted to receive an electric arc, which was generated outside of the arc chamber and which propagates in a forward direction, a plurality of stacked splitter plates, and at least one inhibitor barrier. The at least one inhibitor barrier is arranged on the entry side to inhibit a reverse propagation of the electric arc out of the arc chamber in a reverse direction. DC circuit breaker comprising an arc chamber. Use of an arc chamber with a circuit breaker in a DC electrical system.Type: ApplicationFiled: October 14, 2019Publication date: February 6, 2020Inventors: Rudolf Gati, Matthias Bator, Osvaldo Prestini, Pierluigi Cisana, Thorsten Strassel
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Patent number: 9640974Abstract: A DC circuit breaker including a pair of arcing contact members for holding an arc, an interaction element, adapted for interacting with the arc in dependence of whether the arc is in a first or second state such that the arc voltage drop in the first state is lower than the drop in the second state, a resonance branch coupled in parallel to the contact members thereby forming a resonance circuit adapted for letting a resonance branch current Ir oscillate thereby inducing oscillations of an arc current Ia, wherein the resonance branch includes a coupling element for coupling the resonance branch with the arc, such that the arc is brought to the first state when the current Ir in the resonance branch has a first direction, and that the arc is brought to the second state when the current Ir in the resonance branch has a second direction.Type: GrantFiled: October 14, 2014Date of Patent: May 2, 2017Assignee: ABB Schweiz AGInventors: Markus Abplanalp, Rudolf Gati
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DC current switching apparatus, electronic device, and method for switching an associated DC circuit
Patent number: 9484168Abstract: Exemplary embodiments are directed to a direct current switching apparatus including at least a first mechanical switching device which is suitable to be positioned along an operating path of an associated DC circuit and includes a fixed contact and a corresponding movable contact which can be actuated between a closed position and an open position along the operating path, wherein an electric arc can ignite between the contacts under separation. The switching apparatus includes an electronic circuit having a semiconductor device which is suitable to be positioned along a secondary path and connected in parallel with the first mechanical switching device. The electronic circuit can be configured to commute the flow of current from the operating path to the secondary path and extinguish an electric arc ignited when the movable contact separates from the fixed contact when the first mechanical switching device fails to extinguish the same.Type: GrantFiled: May 6, 2014Date of Patent: November 1, 2016Assignee: ABB S.P.A.Inventors: Davide Pessina, Romeo Bianchetti, Rudolf Gati, Thorsten Strassel -
Publication number: 20150029617Abstract: A DC circuit breaker including a pair of arcing contact members for holding an arc, an interaction element, adapted for interacting with the arc in dependence of whether the arc is in a first or second state such that the arc voltage drop in the first state is lower than the drop in the second state, a resonance branch coupled in parallel to the contact members thereby forming a resonance circuit adapted for letting a resonance branch current Ir oscillate thereby inducing oscillations of an arc current Ia, wherein the resonance branch includes a coupling element for coupling the resonance branch with the arc, such that the arc is brought to the first state when the current Ir in the resonance branch has a first direction, and that the arc is brought to the second state when the current Ir in the resonance branch has a second direction.Type: ApplicationFiled: October 14, 2014Publication date: January 29, 2015Inventors: Markus Abplanalp, Rudolf Gati
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Publication number: 20140374382Abstract: A circuit breaker for breaking an AC current, including a pair of breaker contact members with a first breaker contact member and a second breaker contact member, wherein the pair of breaker contact members is separable, whereby an arc carrying an arcing current develops between the breaker contact members; an arcing contact member configured for letting an arc root of the arc jump from the second breaker contact member to the arcing contact member, whereby the arcing current is commuted from the second breaker contact member to the arcing contact member, the commuted arcing current having a first direction; and a current-rectifying element electrically connected to the arcing contact member and configured for passing the commuted arcing current having the first direction, and for blocking a current having a second direction opposite to the first direction.Type: ApplicationFiled: September 8, 2014Publication date: December 25, 2014Inventors: Rudolf Gati, Arthouros Iordanidis, Felix Greuter, Markus Abplanalp
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DC CURRENT SWITCHING APPARATUS, ELECTRONIC DEVICE, AND METHOD FOR SWITCHING AN ASSOCIATED DC CIRCUIT
Publication number: 20140332500Abstract: Exemplary embodiments are directed to a direct current switching apparatus including at least a first mechanical switching device which is suitable to be positioned along an operating path of an associated DC circuit and includes a fixed contact and a corresponding movable contact which can be actuated between a closed position and an open position along the operating path, wherein an electric arc can ignite between the contacts under separation. The switching apparatus includes an electronic circuit having a semiconductor device which is suitable to be positioned along a secondary path and connected in parallel with the first mechanical switching device. The electronic circuit can be configured to commute the flow of current from the operating path to the secondary path and extinguish an electric arc ignited when the movable contact separates from the fixed contact when the first mechanical switching device fails to extinguish the same.Type: ApplicationFiled: May 6, 2014Publication date: November 13, 2014Applicant: ABB S.p.A.Inventors: Davide Pessina, Romeo Bianchetti, Rudolf Gati, Thorsten Strassel -
Patent number: 8884615Abstract: A sensor unit for the measurement of a current in a conductor (1) comprising at least one magnetoresistive sensor (5, 6) located at a radial distance from the outer surface of the conductor (1) is disclosed, wherein the conductor (1) has a circular cross-section, and wherein it comprises at least one auxiliary coil (7) for the generation of a bias magnetic field (Hbias) to the magnetoresistive sensor (5, 6) strong enough for inducing magnetic saturation in the magnetoresistive sensor (5, 6) continuously during the whole current measurement process. Further the use of such a sensor and a method for measuring the current in the conductor using such a sensor unit are disclosed.Type: GrantFiled: July 22, 2008Date of Patent: November 11, 2014Assignee: ABB Research Ltd.Inventors: Rudolf Gati, Markus Abplanalp
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Publication number: 20110121828Abstract: A sensor unit for the measurement of a current in a conductor (1) comprising at least one magnetoresistive sensor (5, 6) located at a radial distance from the outer surface of the conductor (1) is disclosed, wherein the conductor (1) has a circular cross-section, and wherein it comprises at least one auxiliary coil (7) for the generation of a bias magnetic field (Hbias) to the magnetoresistive sensor (5, 6) strong enough for inducing magnetic saturation in the magnetoresistive sensor (5, 6) continuously during the whole current measurement process. Further the use of such a sensor and a method for measuring the current in the conductor using such a sensor unit are disclosed.Type: ApplicationFiled: July 22, 2008Publication date: May 26, 2011Inventors: Rudolf Gati, Markus Abplanalp