Patents by Inventor Roland Ritz
Roland Ritz 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: 8461947Abstract: An installation switching device which rapidly disconnects short-circuit currents is provided. A contact lever is arranged at least partially in an air gap in a magnetic circuit such that, in case of a short circuit, the interaction between current flow and magnetic flux within the air gap can result in an electrodynamic force effect, which leads to rapid opening of at least one contact point. A switching mechanism acts via a first operating connecting line on the contact lever to open the contact point and/or to keep it open. In case of overcurrent tripping, an overcurrent release acts, by a switching mechanism and via a second operating connecting line, on the switching mechanism to open the contact point and keep it open. In case of short-circuit tripping, the contact lever acts via a third operating connecting line on the switching mechanism to keep the contact point open.Type: GrantFiled: January 19, 2012Date of Patent: June 11, 2013Assignee: ABB AGInventors: Joachim Wendel, Roland Ritz, Joachim Becker, Ralf Weber
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Patent number: 8451076Abstract: A current path in an installation switching device includes first and second contact points, which respectively include first and second levers. The second lever is arranged in an air gap in a magnetic circuit. In case of a short circuit, an electrodynamic force, which leads to rapid opening of the second contact point, can act on the second lever due to interaction of current flow with magnetic flux within the air gap. A switching mechanism acts via a first connecting line on the first lever to open and/or keep open the first contact point. In case of overcurrent tripping, an overcurrent release acts through the switching mechanism and a second connecting line on the switching mechanism to open and keep open the first contact point. In case of short-circuit tripping, the second lever acts via a third connecting line on the switching mechanism to keep the first contact point open.Type: GrantFiled: January 19, 2012Date of Patent: May 28, 2013Assignee: ABB AGInventors: Joachim Wendel, Roland Ritz, Joachim Becker
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Publication number: 20120182095Abstract: An installation switching device which rapidly disconnects short-circuit currents is provided. A contact lever is arranged at least partially in an air gap in a magnetic circuit such that, in case of a short circuit, the interaction between current flow and magnetic flux within the air gap can result in an electrodynamic force effect, which leads to rapid opening of at least one contact point. A switching mechanism acts via a first operating connecting line on the contact lever to open the contact point and/or to keep it open. In case of overcurrent tripping, an overcurrent release acts, by a switching mechanism and via a second operating connecting line, on the switching mechanism to open the contact point and keep it open. In case of short-circuit tripping, the contact lever acts via a third operating connecting line on the switching mechanism to keep the contact point open.Type: ApplicationFiled: January 19, 2012Publication date: July 19, 2012Applicant: ABB AGInventors: Joachim WENDEL, Roland Ritz, Joachim Becker, Ralf Weber
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Publication number: 20120182096Abstract: A current path in an installation switching device includes first and second contact points, which respectively include first and second levers. The second lever is arranged in an air gap in a magnetic circuit. In case of a short circuit, an electrodynamic force, which leads to rapid opening of the second contact point, can act on the second lever due to interaction of current flow with magnetic flux within the air gap. A switching mechanism acts via a first connecting line on the first lever to open and/or keep open the first contact point. In case of overcurrent tripping, an overcurrent release acts through the switching mechanism and a second connecting line on the switching mechanism to open and keep open the first contact point. In case of short-circuit tripping, the second lever acts via a third connecting line on the switching mechanism to keep the first contact point open.Type: ApplicationFiled: January 19, 2012Publication date: July 19, 2012Applicant: ABB AGInventors: Joachim Wendel, Roland Ritz, Joachim Becker
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Patent number: 8129641Abstract: An installation switching device includes a housing having a terminal connecting area and a screwless spring-loaded terminal fixed in position in the terminal connecting area, and a spring operating lever. The screwless spring-loaded terminal includes a clamping spring having a contact limb, a clamping limb having a clamping window with a clamping edge, and a curved spring rear connecting the contact and clamping limbs and configured to interact with a mount part surrounding a clamping strip, such that a connecting conductor is clampable between a rear face of the clamping strip and the clamping edge.Type: GrantFiled: April 14, 2008Date of Patent: March 6, 2012Assignee: ABB AGInventors: Joachim Majewski, Roland Ritz, Klaus-Peter Eppe
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Patent number: 8093984Abstract: An installation switching device includes a housing, a main contact point having an arc quenching chamber, an input terminal, an output terminal, an impact-style armature system configured to move the main contact point to an open position, a latching mechanism having a latching point and configured to open an isolating contact point disposed in a secondary current path parallel to a main current path, a main thermostatic bimetallic strip configured to act on the latching point to as to cause the main contact point to remain in the open position, a current limiting resistor disposed in the secondary current path, a selective thermostatic bimetallic strip disposed in the secondary current path and configured to act on the latching mechanism, a handle configured to act on the latching mechanism so as to open and close the main contact point, and a phase connecting rail.Type: GrantFiled: April 24, 2008Date of Patent: January 10, 2012Assignee: ABB AGInventors: Manfred Hofmann, Wolfgang Pump, Ralf Wieland, Albert Stieger, Joachim Majewski, Roland Ritz, Klaus-Peter Eppe, Erwin Muders, Joachim Becker, Rainer Ludovici, Heinz-Erich Popa, Wolfgang Suess
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Publication number: 20100127816Abstract: An installation switching device includes a housing, a main contact point having an arc quenching chamber, an input terminal, an output terminal, an impact-style armature system configured to move the main contact point to an open position, a latching mechanism having a latching point and configured to open an isolating contact point disposed in a secondary current path parallel to a main current path, a main thermostatic bimetallic strip configured to act on the latching point to as to cause the main contact point to remain in the open position, a current limiting resistor disposed in the secondary current path, a selective thermostatic bimetallic strip disposed in the secondary current path and configured to act on the latching mechanism, a handle configured to act on the latching mechanism so as to open and close the main contact point, and a phase connecting rail.Type: ApplicationFiled: April 24, 2008Publication date: May 27, 2010Applicant: ABB AGInventors: Manfred Hofmann, Wolfgang Pump, Ralf Wieland, Albert Stieger, Joachim Majewski, Roland Ritz, Klaus-Peter Eppe, Erwin Muders, Joachim Becker, Rainer Ludovici, Heinz-Erich Popa, Wolfgang Suess
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Publication number: 20100116634Abstract: An installation switching device includes a housing having a terminal connecting area and a screwless spring-loaded terminal fixed in position in the terminal connecting area, and a spring operating lever. The screwless spring-loaded terminal includes a clamping spring having a contact limb, a clamping limb having a clamping window with a clamping edge, and a curved spring rear connecting the contact and clamping limbs and configured to interact with a mount part surrounding a clamping strip, such that a connecting conductor is clampable between a rear face of the clamping strip and the clamping edge.Type: ApplicationFiled: April 14, 2008Publication date: May 13, 2010Applicant: ABB AGInventors: Joachim Majewski, Roland Ritz, Klaus-Peter Eppe