Patents by Inventor Bruno Widmer
Bruno Widmer 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: 8426730Abstract: A high-voltage isolator is disclosed which has a first electrical connecting piece and a second electrical connecting piece, between which an electrical isolating body extends. The end sections of the connecting pieces are connected to the isolating body, with a toroidal field control element being arranged on at least one of the end sections. A slot, which extends in the circumferential direction of the end section, is introduced on the end section which has the field control element. The field control element and the respectively associated end section are formed integrally. As a result of the slot, tension and compression forces which occur during longitudinal and lateral contractions of the isolating body and act at right angles to the longitudinal axis of the end section can be largely prevented, as can shear forces, while at the same time achieving a high level of uniformity in an area of the isolating gap, for electrical fields which occur during operation.Type: GrantFiled: February 14, 2011Date of Patent: April 23, 2013Assignee: ABB Technology AGInventors: Bruno Widmer, Jean-Claude Mauroux, Michael Conry, Martin Lakner
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Patent number: 8278557Abstract: A high-voltage insulator includes a metal armature, an insulating tube joined to the metal armature, which is adhesively bonded to the metal armature at an end formed as a supporting ring, and an axially symmetrical adhesive-bonding joint disposed around the axis of the insulating tube. An annular grove, which is formed in the metal armature, is disposed around the axis of the insulating tube and receives an end portion of the supporting ring. Sealing surfaces are respectively formed in the groove and in the supporting ring. The sealing surfaces are arranged and formed in such a way that, when the insulating tube and the metal armature are joined, they slide on one another, thereby forming a seal, and the supporting ring acting as a displacement body presses adhesive that has been introduced into the groove before the joining into the adhesive-bonding joint.Type: GrantFiled: August 20, 2010Date of Patent: October 2, 2012Assignee: ABB Technology AGInventors: Bruno Widmer, Jean-Claude Mauroux, Martin Lakner, Leopold Ritzer, Reto Weder
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Patent number: 8081464Abstract: An exemplary encapsulated high-voltage switch is disclosed which contains a heat-generating current conductor, a metal encapsulation surrounding the current conductor, and a cooling element. A cooler of the cooling element is fixed on a part of the encapsulation that is embodied as a mounting plate, and has cooling ribs arranged outside the encapsulation. In a section of the cooler that is embodied as a cooling block, at least a portion of the cooling ribs is arranged parallel to the mounting plate and is held on a heat distributor fixed to the mounting plate in such a way that on both sides of the heat distributor in each case one of two groups of cooling channels arises, in which the cooling channels are in each case arranged in the manner of a sandwich. The cooling channels can, for example, be oriented in a manner inclined relative to a horizontal axis of the switch.Type: GrantFiled: August 19, 2009Date of Patent: December 20, 2011Assignee: ABB Technology AGInventors: Jean-Claude Mauroux, Guenter Steding, Martin Lakner, Bruno Widmer
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Publication number: 20110180292Abstract: A high-voltage isolator is disclosed which has a first electrical connecting piece and a second electrical connecting piece, between which an electrical isolating body extends. The end sections of the connecting pieces are connected to the isolating body, with a toroidal field control element being arranged on at least one of the end sections. A slot, which extends in the circumferential direction of the end section, is introduced on the end section which has the field control element. The field control element and the respectively associated end section are formed integrally. As a result of the slot, tension and compression forces which occur during longitudinal and lateral contractions of the isolating body and act at right angles to the longitudinal axis of the end section can be largely prevented, as can shear forces, while at the same time achieving a high level of uniformity in an area of the isolating gap, for electrical fields which occur during operation.Type: ApplicationFiled: February 14, 2011Publication date: July 28, 2011Applicant: ABB Technology AGInventors: Bruno Widmer, Jean-Claude Mauroux, Michael Conry, Martin Lakner
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Publication number: 20110030994Abstract: A high-voltage insulator includes a metal armature, an insulating tube joined to the metal armature, which is adhesively bonded to the metal armature at an end formed as a supporting ring, and an axially symmetrical adhesive-bonding joint disposed around the axis of the insulating tube. An annular grove, which is formed in the metal armature, is disposed around the axis of the insulating tube and receives an end portion of the supporting ring. Sealing surfaces are respectively formed in the groove and in the supporting ring. The sealing surfaces are arranged and formed in such a way that, when the insulating tube and the metal armature are joined, they slide on one another, thereby forming a seal, and the supporting ring acting as a displacement body presses adhesive that has been introduced into the groove before the joining into the adhesive-bonding joint.Type: ApplicationFiled: August 20, 2010Publication date: February 10, 2011Applicant: ABB Technology AGInventors: Bruno Widmer, Jean-Claude Mauroux, Martin Lakner, Leopold Ritzer, Reto Weder
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Publication number: 20100044346Abstract: An exemplary encapsulated high-voltage switch is disclosed which contains a heat-generating current conductor, a metal encapsulation surrounding the current conductor, and a cooling element. A cooler of the cooling element is fixed on a part of the encapsulation that is embodied as a mounting plate, and has cooling ribs arranged outside the encapsulation. In a section of the cooler that is embodied as a cooling block, at least a portion of the cooling ribs is arranged parallel to the mounting plate and is held on a heat distributor fixed to the mounting plate in such a way that on both sides of the heat distributor in each case one of two groups of cooling channels arises, in which the cooling channels are in each case arranged in the manner of a sandwich. The cooling channels can, for example, be oriented in a manner inclined relative to a horizontal axis of the switch.Type: ApplicationFiled: August 19, 2009Publication date: February 25, 2010Applicant: ABB Technology AGInventors: Jean-Claude MAUROUX, Guenter Steding, Martin Lakner, Bruno Widmer