Patents by Inventor Dieter Brendler
Dieter Brendler 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: 10159984Abstract: A method for making recesses in the surface of a roller for a rolling press. A thermal treatment is applied to a cylindrical roller surface by heating the surface in a region of the desired recesses until the material properties of the roller surface change permanently, i.e., even after cooling, with respect to the hardness of the roller material. The thermally treated regions produce a softer material in those regions than in the surrounding surface of the roller. By virture of a first start-up of the rolling press with abrasive material to be comminuted, the desired profiling is formed spontaneously due to a wearing down of the soft regions to form the desired recesses. The thermal treatment represent a particularly simple and cost-effective method for profiling rolling rollers, and in particular, rolling rollers which have already become worn, which that thereby be readily refurbished.Type: GrantFiled: December 9, 2014Date of Patent: December 25, 2018Assignee: KHD HUMBOLDT WEDAG GMBHInventors: Guenther Kopp, Dieter Brendler
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Publication number: 20170106373Abstract: A method for making recesses in the surface of a roller for a rolling press. A thermal treatment is applied to a cylindrical roller surface by heating the surface in a region of the desired recesses until the material properties of the roller surface change permanently, i.e., even after cooling, with respect to the hardness of the roller material. The thermally treated regions produce a softer material in those regions than in the surrounding surface of the roller. By virture of a first start-up of the rolling press with abrasive material to be comminuted, the desired profiling is formed spontaneously due to a wearing down of the soft regions to form the desired recesses. The thermal treatment represent a particularly simple and cost-effective method for profiling rolling rollers, and in particular, rolling rollers which have already become worn, which that thereby be readily refurbished.Type: ApplicationFiled: December 9, 2014Publication date: April 20, 2017Inventors: Guenther Kopp, Dieter Brendler
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Patent number: 9498779Abstract: A method for regulating the roll gap pressure of a roller press and a corresponding roller press. The roll gap pressure is regulated dependent on at least one oscillating movement that is measured on the roller press. This has the advantage that the roller press can always be operated at the maximum roller press efficiency without the roller press reaching the overload range.Type: GrantFiled: March 23, 2012Date of Patent: November 22, 2016Assignee: KHD Humboldt Wedag GmbHInventors: Dieter Brendler, Meinhard Frangenberg, Hans-Peter Makulik, Stefan Seemann
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Patent number: 8740122Abstract: A grinding roller for the high-pressure comminution of granular milling material, having a reinforcement with hard bodies which protrude from the surface of the main part of the grinding roller. At least some of the hard bodies have a continuous recess, wherein the recess extends in the radial direction of the grinding roller. Refurbishing the surface of the grinding roller is substantially simplified by the continuous recess.Type: GrantFiled: August 12, 2010Date of Patent: June 3, 2014Assignee: KHD Humboldt Wedag GmbHInventor: Dieter Brendler
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Publication number: 20140048634Abstract: A method for regulating the roll gap pressure of a roller press and a corresponding roller press. The roll gap pressure is regulated dependent on at least one oscillating movement that is measured on the roller press. This has the advantage that the roller press can always be operated at the maximum roller press efficiency without the roller press reaching the overload range.Type: ApplicationFiled: March 23, 2012Publication date: February 20, 2014Applicant: KHD HUMBOLDT WEDAG GMBHInventors: Dieter Brendler, Meinhard Frangenberg, Hans-Peter Makulik, Stefan Seemann
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Patent number: 8388772Abstract: A method for the production of an annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures. The annular casing is cast of nodular cast iron with at least the alloying elements Ni and Mo. The cast body is given a bainitic structure with residual austenite by a subsequent heat treatment followed by controlled cooling. The outer surface is constantly re-hardened during use via pressure loading such that martensite is constantly formed in boundary layers of the outer surface.Type: GrantFiled: November 12, 2010Date of Patent: March 5, 2013Assignee: KHD Humboldt Wedag GmbHInventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Publication number: 20120138722Abstract: A grinding roller for the high-pressure comminution of granular milling material, having a reinforcement with hard bodies which protrude from the surface of the main part of the grinding roller. At least some of the hard bodies have a continuous recess, wherein the recess extends in the radial direction of the grinding roller. Refurbishing the surface of the grinding roller is substantially simplified by the continuous recess.Type: ApplicationFiled: August 12, 2010Publication date: June 7, 2012Applicant: KHD HUMBOLDT WEDAG GMBHInventor: Dieter Brendler
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Publication number: 20120135361Abstract: A grate cooler plate including an air inlet and air passage openings through which the air flows for cooling the cooling goods present on the grate cooler plate. A rotatable insert having air passage openings is located in an upper surface of the grate cooler plate. The effect of the grate plate is that bulk goods placed in the inlet region of a grate plate cooler expand out to a flat cone of bulk goods.Type: ApplicationFiled: August 3, 2010Publication date: May 31, 2012Applicant: KHD HUMBOLDT WEDAG GMBHInventor: Dieter Brendler
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Publication number: 20110061773Abstract: A method for the production of an annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures. The annular casing is cast of nodular cast iron with at least the alloying elements Ni and Mo. The cast body is given a bainitic structure with residual austenite by a subsequent heat treatment followed by controlled cooling. The outer surface is constantly re-hardened during use via pressure loading such that martensite is constantly formed in boundary layers of the outer surface.Type: ApplicationFiled: November 12, 2010Publication date: March 17, 2011Applicant: KHD HUMBOLDT WEDAG GMBHInventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Patent number: 7832671Abstract: An annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures, it is proposed according to the invention that the material of the casing consists of nodular cast iron with at least the alloying elements Ni and Mo and with a bainitic structure with residual austenite, and in that, to achieve a self-hardening surface, the boundary layer of the annular casing—contains martensite, which is constantly renewed by external pressure loading of the casing surface when the press roller is in operation.Type: GrantFiled: September 7, 2005Date of Patent: November 16, 2010Assignee: KHD Humboldt Wedag GmbHInventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Publication number: 20090218429Abstract: The invention relates to hard elements generally produced by powder metallurgy for protecting rolling press rollers from wear, this protection taking the form of grid armouring. In order to provide hard elements which can be produced relatively inexpensively and which, in particular, can again be disassembled in a relatively simple manner, even in the damaged state, from their respective roller body cutouts for the purpose of roller repair, the invention proposes prefabricated hard elements with a prefabricated central cutout which, starting from the radially inner end of the hard elements, extends over at least some of the height of the hard elements.Type: ApplicationFiled: March 5, 2007Publication date: September 3, 2009Inventors: Alexander Hagedorn, Dieter Brendler
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Patent number: 7497396Abstract: The aim of the invention is to provide grinding rolls in particular for high-pressure roller mills or rolling presses for pressure grinding a granular material not only with a wear-resistant coating but also with a face armour plating in the area of the roller annular edge, which has a long service life due to the high wear resistance thereof and whose production and repair are, in general, relatively simple and inexpensive. For this purpose, the inventive face armour plating consists of a plurality of prefabricated hard bodies which are circularly arranged side by side in such a way that the circular face edge of the roller is formed, said hard bodies are disposed on said circular shoulder of a roll shell such that said hard bodies are placed axially and radially against said circular shoulder of the roll shell and are movably assembled with the roll shell.Type: GrantFiled: November 22, 2004Date of Patent: March 3, 2009Assignee: KHD Humboldt Wedag GmbHInventors: Christian Splinter, Meinhard Frangenberg, Frank Fischer-Helwig, Dieter Brendler
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Publication number: 20080191074Abstract: An annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures, it is proposed according to the invention that the material of the casing consists of nodular cast iron with at least the alloying elements Ni and Mo and with a bainitic structure with residual austenite, and in that, to achieve a self-hardening surface, the boundary layer of the annular casing—contains martensite, which is constantly renewed by external pressure loading of the casing surface when the press roller is in operation.Type: ApplicationFiled: September 7, 2005Publication date: August 14, 2008Inventors: Alexander Hagedorn, Meinhard Frangenberg, Dieter Brendler
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Publication number: 20070215733Abstract: The aim of the invention is to provide grinding rolls in particular for high-pressure roller mills or rolling presses for pressure grinding a granular material not only with a wear-resistant coating but also with a face armour plating in the area of the roller annular edge, which has a long service life due to the high wear resistance thereof and whose production and repair are, in general, relatively simple and inexpensive. For this purpose, the inventive face armour plating consists of a plurality of prefabricated hard bodies which are circularly arranged side by side in such a way that the circular face edge of the roller is formed, said hard bodies are disposed on said circular shoulder of a roll shell such that said hard bodies are placed axially and radially against said circular shoulder of the roll shell and are movably assembled with the roll shell.Type: ApplicationFiled: November 22, 2004Publication date: September 20, 2007Inventors: Christian Splinter, Meinhard Frangenberg, Frank Fischer-Helwig, Dieter Brendler