Patents by Inventor Heinz Mühlleitner
Heinz Mühlleitner 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: 11717908Abstract: A welding unit for welding rails of a track has a unit lower edge forming a lower boundary of the welding unit, with regard to a vertical, and a shearing device provided for removing a weld bead. A rail base section of the shearing device is designed to be lowered, relative to the welding unit, by way of a drive from a rest position situated above the unit lower edge into a shearing position situated below the unit lower edge. Thus, the welding operation can be carried out without lifting the rails from the sleepers.Type: GrantFiled: February 2, 2017Date of Patent: August 8, 2023Assignee: Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.Inventor: Heinz Muehlleitner
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Patent number: 11613853Abstract: A device for welding a rail joint of a track, comprising two rail clamping devices spaced from one another in a rail longitudinal direction which are connected to one another via push rods to press rail ends apart prior to welding. In this, it is provided that at least one rail clamping device is coupled to a transverse displacement device for flush-aligning the rail ends after being pressed apart.Type: GrantFiled: June 4, 2018Date of Patent: March 28, 2023Assignee: Plasser & Theurer Export von Bahnbaumaschinen GmbHInventor: Heinz Muehlleitner
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Patent number: 11235416Abstract: A welding assembly (1) for welding two rails (2) of a track includes two rail clamping units (5) movable towards one another in an assembly longitudinal direction (4). A power rail (10) provided for power transmission is configured as an assembly guide (3), extending in an assembly longitudinal direction (4), which is spaced from displacement drives (11) and connects both rail clamping units (5) to one another. The power rail (10) is equipped with a cooling device and displaceable in the assembly longitudinal direction (4) relative to the rail clamping unit (5) equipped with the power rail contacts (8).Type: GrantFiled: March 6, 2017Date of Patent: February 1, 2022Assignee: Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.Inventor: Heinz Muehlleitner
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Patent number: 11066787Abstract: A welding apparatus for welding rails of a track comprises two welding units which are movable relative to one another and which are each equipped with clamping jaws at a lower end. The clamping jaws are configured for resting on a web of the rail. Each welding unit is connected to a supporting device which can move relative to the welding unit and which is provided for resting on the track during operation.Type: GrantFiled: January 9, 2017Date of Patent: July 20, 2021Assignee: Piasser & Theurer Export von Bahnbaumaschinen GmbHInventors: Robert Fletzer, Heinz Muehlleitner
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Publication number: 20200282487Abstract: A welding unit for welding rails of a track has a unit lower edge forming a lower boundary of the welding unit, with regard to a vertical, and a shearing device provided for removing a weld bead. A rail base section of the shearing device is designed to be lowered, relative to the welding unit, by way of a drive from a rest position situated above the unit lower edge into a shearing position situated below the unit lower edge. Thus, the welding operation can be carried out without lifting the rails from the sleepers.Type: ApplicationFiled: February 2, 2017Publication date: September 10, 2020Inventor: HEINZ MUEHLLEITNER
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Publication number: 20200199825Abstract: A device for welding a rail joint of a track, comprising two rail clamping devices spaced from one another in a rail longitudinal direction which are connected to one another via push rods to press rail ends apart prior to welding. In this, it is provided that at least one rail clamping device is coupled to a transverse displacement device for flush-aligning the rail ends after being pressed apart.Type: ApplicationFiled: June 4, 2018Publication date: June 25, 2020Applicant: Plasser & Theurer Export von Bahnbaumaschinen GmbHInventor: Heinz MUEHLLEITNER
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Patent number: 10570573Abstract: A welding unit for welding together two rails of a track includes two rail clamping assemblies which can be moved towards one another in a longitudinal direction of the rail along unit guides by compression cylinders. Each rail clamping assembly is equipped with clamping jaws which are displaceable in pairs in a pressing plane and each of which has a contact surface provided for application to a rail web. The clamping jaws are each constructed as clamping levers which are pivotable in the pressing plane about a lever pivot axis. The contact surface intended for application to the rail web is disposed at a first lever end spaced apart from the lever pivot axis. The two contact surfaces of each rail clamping assembly are each positioned closer to the oppositely disposed rail clamping assembly than the two lever pivot axes.Type: GrantFiled: September 7, 2015Date of Patent: February 25, 2020Assignee: Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.Inventor: Heinz Muehlleitner
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Publication number: 20190054561Abstract: A welding assembly (1) for welding two rails (2) of a track includes two rail clamping units (5) movable towards one another in an assembly longitudinal direction (4). A power rail (10) provided for power transmission is configured as an assembly guide (3), extending in an assembly longitudinal direction (4), which is spaced from displacement drives (11) and connects both rail clamping units (5) to one another. The power rail (10) is equipped with a cooling device and displaceable in the assembly longitudinal direction (4) relative to the rail clamping unit (5) equipped with the power rail contacts (8).Type: ApplicationFiled: March 6, 2017Publication date: February 21, 2019Applicant: Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.Inventor: Heinz MUEHLLEITNER
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Publication number: 20190032283Abstract: A welding apparatus for welding rails of a track comprises two welding units which are movable relative to one another and which are each equipped with clamping jaws at a lower end. The clamping jaws are configured for resting on a web of the rail. Each welding unit is connected to a supporting device which can move relative to the welding unit and which is provided for resting on the track during operation.Type: ApplicationFiled: January 9, 2017Publication date: January 31, 2019Inventors: ROBERT FLETZER, HEINZ MUEHLLEITNER
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Publication number: 20170292225Abstract: A welding unit for welding together two rails of a track includes two rail clamping assemblies which can be moved towards one another in a longitudinal direction of the rail along unit guides by compression cylinders. Each rail clamping assembly is equipped with clamping jaws which are displaceable in pairs in a pressing plane and each of which has a contact surface provided for application to a rail web. The clamping jaws are each constructed as clamping levers which are pivotable in the pressing plane about a lever pivot axis. The contact surface intended for application to the rail web is disposed at a first lever end spaced apart from the lever pivot axis. The two contact surfaces of each rail clamping assembly are each positioned closer to the oppositely disposed rail clamping assembly than the two lever pivot axes.Type: ApplicationFiled: September 7, 2015Publication date: October 12, 2017Inventor: HEINZ MUEHLLEITNER
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Patent number: 8979083Abstract: A welding unit for welding two rails of a track is equipped with clamping jaws intended for lying against a rail web. The clamping jaws each have a sliding surface, which is at a distance from a contact surface in the transverse direction of the rail and is arcuately curved with respect to a cross section extending such that it is normal to a neutral axis of the rails. The jaw mount, intended for fixing the clamping jaw, has a sliding surface, which is curved in a way corresponding to the sliding surface of the clamping jaw, and so the clamping jaw is movable along the sliding surfaces in relation to the jaw mount.Type: GrantFiled: November 13, 2009Date of Patent: March 17, 2015Assignee: Franz Plasser Bahnbaumaschinen-Industriegesellschaft mbHInventors: Josef Theurer, Bernhard Lichtberger, Heinz Mühlleitner
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Patent number: 8735761Abstract: A welding unit for welding rails of a track includes two unit bodies that can be moved in relation to each other by displacement cylinders along unit guides running parallel to the rails. The displacement cylinders are connected both to pull rods and to a crossbeam. Thus a simple design having high tensile forces is possible.Type: GrantFiled: February 4, 2011Date of Patent: May 27, 2014Assignee: Franz Plasser Bahnbaumaschinen- Industriegesellschaft mbHInventors: Josef Theurer, Bernhard Lichtberger, Heinz Mühlleitner
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Publication number: 20120025436Abstract: A welding unit for welding two rails of a track is equipped with clamping jaws intended for lying against a rail web. The clamping jaws each have a sliding surface, which is at a distance from a contact surface in the transverse direction of the rail and is arcuately curved with respect to a cross section extending such that it is normal to a neutral axis of the rails. The jaw mount, intended for fixing the clamping jaw, has a sliding surface, which is curved in a way corresponding to the sliding surface of the clamping jaw, and so the clamping jaw is movable along the sliding surfaces in relation to the jaw mount.Type: ApplicationFiled: November 13, 2009Publication date: February 2, 2012Inventors: Josef Theurer, Bernhard Lichtberger, Heinz Mühlleitner
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Publication number: 20110168675Abstract: A welding unit for welding rails of a track includes two unit bodies that can be moved in relation to each other by displacement cylinders along unit guides running parallel to the rails. The displacement cylinders are connected both to pull rods and to a crossbeam. Thus a simple design having high tensile forces is possible.Type: ApplicationFiled: February 4, 2011Publication date: July 14, 2011Applicant: FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIEGESELLSCHAFT MBHInventors: JOSEF THEURER, BERNHARD LICHTBERGER, HEINZ MÜHLLEITNER
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Patent number: 6852940Abstract: A welding device for welding together two rails of a track and producing a welded joint is composed of two halves. An air nozzle and a temperature sensor are mounted on one of the halves. Via a cooling opening of the air nozzle, a glowing-cooled hot welded joint can be cooled in a controlled manner, immediately after a welding bead has been sheared off, by supplying compressed air to the joint. Thus, optimal welding of head-hardened rails can be achieved.Type: GrantFiled: April 29, 2004Date of Patent: February 8, 2005Assignee: Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.Inventor: Heinz Mühlleitner