Patents by Inventor Walter Kollner
Walter Kollner 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: 8550007Abstract: Retard energy regenerated from an electrical motor during braking action is reinjected into a power system via trolley lines. The retard energy may be transmitted to a bidirectional electric substation and returned to a utility grid. The retard energy may also be transmitted to an auxiliary energy storage system, such as an ultracapacitor system or a battery system. Installing trolley lines for mining haul trucks on a downhill slope may be used to capture and re-use substantial quantities of retard energy.Type: GrantFiled: October 23, 2009Date of Patent: October 8, 2013Assignee: Siemens Industry, Inc.Inventors: Joy Mazumdar, Walter Köllner
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Patent number: 8536814Abstract: The maximum electrical power drawn from an electrical power source by a mining excavator comprising electric motors is reduced by supplying supplementary electrical power from an electrical energy storage unit. The input electrical power drawn by the mining excavator is cyclic. An upper limit is set for the electrical power drawn from the electrical power source. When the input electrical power drawn by the mining excavator exceeds the upper limit, electrical power is supplied by the electrical energy storage unit, such as an ultracapacitor bank. The ultracapacitor bank may be charged by the electrical power source during off-peak intervals. Electrical power generated by electrical motors operating in a regeneration interval may also be recaptured and stored in the electrical energy storage unit.Type: GrantFiled: May 8, 2012Date of Patent: September 17, 2013Assignees: Siemens Industry, Inc., Caterpillar Global Mining LLC, Siemens AktiengesellschaftInventors: Joy Mazumdar, Walter Köllner, Andreas Holweck, Michael G. Onsager, Ekkehard Pittius
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Patent number: 8499909Abstract: A mining haul truck driven by electrical wheel motors is powered by a trolley power system during an uphill climb. Retard energy captured during braking action on either the uphill climb or downhill descent is stored by an on-board electrical energy storage system. Electrical power is supplied from the on-board electrical energy storage system to reduce the peak power demand on the trolley power system during the uphill climb. One implementation of the on-board electrical energy storage system uses an ultracapacitor system.Type: GrantFiled: October 23, 2009Date of Patent: August 6, 2013Assignee: Siemens Industry, Inc.Inventors: Joy Mazumdar, Walter Köllner
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Publication number: 20120257424Abstract: The maximum electrical power drawn from an electrical power source by a mining excavator comprising electric motors is reduced by supplying supplementary electrical power from an electrical energy storage unit. The input electrical power drawn by the mining excavator is cyclic. An upper limit is set for the electrical power drawn from the electrical power source. When the input electrical power drawn by the mining excavator exceeds the upper limit, electrical power is supplied by the electrical energy storage unit, such as an ultracapacitor bank. The ultracapacitor bank may be charged by the electrical power source during off-peak intervals. Electrical power generated by electrical motors operating in a regeneration interval may also be recaptured and stored in the electrical energy storage unit.Type: ApplicationFiled: May 8, 2012Publication date: October 11, 2012Inventors: Joy Mazumdar, Walter Köllner, Andreas Holweck, Michael G. Onsager, Ekkehard Pittius
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Publication number: 20120175209Abstract: Retard energy regenerated from an electrical motor during braking action is reinjected into a power system via trolley lines. The retard energy may be transmitted to a bidirectional electric substation and returned to a utility grid. The retard energy may also be transmitted to an auxiliary energy storage system, such as an ultracapacitor system or a battery system. Installing trolley lines for mining haul trucks on a downhill slope may be used to capture and re-use substantial quantities of retard energy.Type: ApplicationFiled: March 21, 2012Publication date: July 12, 2012Applicant: SIEMENS INDUSTRY, INC.Inventors: Joy Mazumdar, Walter Köllner
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Patent number: 8174225Abstract: The maximum electrical power drawn from an electrical power source by a mining excavator comprising electric motors is reduced by supplying supplementary electrical power from an electrical energy storage unit. The input electrical power drawn by the mining excavator is cyclic. An upper limit is set for the electrical power drawn from the electrical power source. When the input electrical power drawn by the mining excavator exceeds the upper limit, electrical power is supplied by the electrical energy storage unit, such as an ultracapacitor bank. The ultracapacitor bank may be charged by the electrical power source during off-peak intervals. Electrical power generated by electrical motors operating in a regeneration interval may also be recaptured and stored in the electrical energy storage unit.Type: GrantFiled: May 15, 2009Date of Patent: May 8, 2012Assignee: Siemens Industry, Inc.Inventors: Joy Mazumdar, Walter Köllner, Andreas Holweck, Michael G. Onsager, Ekkehard Pittius
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Publication number: 20110094841Abstract: Retard energy regenerated from an electrical motor during braking action is reinjected into a power system via trolley lines. The retard energy may be transmitted to a bidirectional electric substation and returned to a utility grid. The retard energy may also be transmitted to an auxiliary energy storage system, such as an ultracapacitor system or a battery system. Installing trolley lines for mining haul trucks on a downhill slope may be used to capture and re-use substantial quantities of retard energy.Type: ApplicationFiled: October 23, 2009Publication date: April 28, 2011Applicant: Siemens Industry, Inc.Inventors: Joy Mazumdar, Walter Köllner
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Publication number: 20110094808Abstract: A mining haul truck driven by electrical wheel motors is powered by a trolley power system during an uphill climb. Retard energy captured during braking action on either the uphill climb or downhill descent is stored by an on-board electrical energy storage system. Electrical power is supplied from the on-board electrical energy storage system to reduce the peak power demand on the trolley power system during the uphill climb. One implementation of the on-board electrical energy storage system uses an ultracapacitor system.Type: ApplicationFiled: October 23, 2009Publication date: April 28, 2011Applicant: Siemens Industry, Inc.Inventors: Joy Mazumdar, Walter Köllner
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Publication number: 20100289443Abstract: The maximum electrical power drawn from an electrical power source by a mining excavator comprising electric motors is reduced by supplying supplementary electrical power from an electrical energy storage unit. The input electrical power drawn by the mining excavator is cyclic. An upper limit is set for the electrical power drawn from the electrical power source. When the input electrical power drawn by the mining excavator exceeds the upper limit, electrical power is supplied by the electrical energy storage unit, such as an ultracapacitor bank. The ultracapacitor bank may be charged by the electrical power source during off-peak intervals. Electrical power generated by electrical motors operating in a regeneration interval may also be recaptured and stored in the electrical energy storage unit.Type: ApplicationFiled: May 15, 2009Publication date: November 18, 2010Inventors: Joy Mazumdar, Walter Köllner, Andreas Holweck, Micheal G. Onsager, Ekkehard Pittius
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Patent number: 5518128Abstract: A crane, particularly a railway crane, with a superstructure which is arranged on an undercarriage so as to be swivelable around a vertical axis, a jib and at least one counterweight which is movable as a function of the swiveling movement of the superstructure. The counterweight being arranged on the superstructure. The at least one counterweight is connected with the superstructure via an articulation which has a swivel axis aligned parallel to the vertical axis of the superstructure.Type: GrantFiled: May 4, 1995Date of Patent: May 21, 1996Assignee: Mannesmann AktiengesellschaftInventors: Joachim Kroll, Walter Kollner
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Patent number: 5082128Abstract: Cranes having multisection booms have an apparatus for interconnecting boom sections mounted at the ends of the boom sections. The apparatus for interconnecting the boom sections has: on a first boom section, an upper hook member with its concave portion being concave inwardly towards a central longitudinal axis of the boom section; on a second boom section, an upper fork member, having a pair of extending flange portions supporting a bolt member for being received within the upper hook member during interconnection; upper abutment surfaces, which are planar and are perpendicular to the central longitudinal axis of the boom sections, and which are located on the end of the upper hook member and between the pair of flanges of the upper fork member; and a lower strap member on a first boom section for being disposed within a lower fork member on a second boom section during interconnection.Type: GrantFiled: December 19, 1989Date of Patent: January 21, 1992Assignee: Mannesmann AktiengesellschaftInventors: Hermann Franzen, Walter Kollner, Dieter Klessinger, Joachim Kroll
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Patent number: 5005714Abstract: A crane, particularly a large mobile crane, including an undercarriage (1); a revolving joint (3) on the undercarriage (1); and a superstructure on the revolving joint (3). The superstructure includes a central part (5) rotatably mounted on the revolving part (3), a boom connected to the central part (5), a swing part (6), and a horizontal swing bearing (9) pivotally mounting the swing part in upwardly swingable manner on the central part (5). The crane further includes at least one winch mounted on the swing part (6) and a retraction mechanism at the end of the swing part (6) opposite the swing bearing (9). The retraction mechanism includes a pulley head (16) and a bracing (25) for the boom.Type: GrantFiled: July 21, 1989Date of Patent: April 9, 1991Inventors: Joachim Kroll, Walter Kollner