Patents by Inventor Mario KREUTZER
Mario KREUTZER 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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Publication number: 20240035554Abstract: The disclosure relates to a threaded nut of a ball screw drive. The threaded nut includes an inner sleeve made of sheet metal and an outer sleeve made of sheet metal. The inner and outer sleeves are nested axially in one another to form a nut sleeve. A thread of the nut sleeve is helically wound about a longitudinal axis of the threaded nut and forms a ball groove on the inner circumference of the inner sleeve. The outer sleeve is provided along the thread with at least one outer hole into which material of the inner sleeve is molded.Type: ApplicationFiled: November 3, 2021Publication date: February 1, 2024Applicant: Schaeffler Technologies AG & Co. KGInventors: Mario Kreutzer, Richard Baier, Claus Pfeffer, Thomas Kandler, Bastian Kettler
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Publication number: 20240035553Abstract: The disclosure relates to a threaded nut of a ball screw, the threaded nut having an inner sleeve made of sheet metal and an outer sleeve made of sheet metal, which are nested axially in one another to form a nut sleeve. The nut sleeve is provided with a thread, which is formed helically about a longitudinal axis of the threaded nut and which forms, on the inner circumference of the nut sleeve, a ball groove wound helically about the longitudinal axis of the threaded nut and, and on the outer circumference of the nut sleeve, a helically wound outer ridge.Type: ApplicationFiled: November 3, 2021Publication date: February 1, 2024Applicant: Schaeffler Technologies AG & Co. KGInventors: Mario Kreutzer, Richard Baier, Claus Pfeffer, Thomas Kandler
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Patent number: 11614150Abstract: A ball screw nut for a ball screw drive includes a sleeve element which is formed as a sheet metal part and has a thread which is formed for the largest part as a load channel, wherein a relief section formed within the thread extends from the load channel at least slightly radially outwards and adjoins a deflection channel.Type: GrantFiled: January 25, 2019Date of Patent: March 28, 2023Assignee: Schaeffler Technologies AG & Co. KGInventors: Claus Pfeffer, Richard Baier, Mario Kreutzer
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Patent number: 11530740Abstract: A ball-screw actuator includes a screw nut having a metal core and an over-molded plastic outer shell. The plastic outer shell includes features which would be expensive to manufacture in a single piece metal screw nut, such as an anti-rotation feature, an axial position control feature, and a lateral position control feature. The anti-rotation feature may take the form of an axial groove or of an axial ridge.Type: GrantFiled: September 6, 2019Date of Patent: December 20, 2022Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Renato de Paula, Mario Kreutzer, Dieter Adler, Michael Zinnecker
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Publication number: 20220275854Abstract: A method for producing a threaded nut of a threaded drive, includes the following steps: a sleeve is produced from a steel sheet which is suitable for case-hardening; a rolling profile for a rolling contact with rolling bodies is molded on the inner circumference of the sleeve, said rolling profile being wound in a helical manner about the longitudinal axis of the sleeve; a flange is welded to the end face of the sleeve; the flange is provided with a welding surface on the flange end face facing away from the sleeve for welding to a machine part; the welding surface initially has a diffusion-inhibiting layer which inhibits the penetration of carbon; and the welding surface is exposed by removing the diffusion-inhibiting layer after case-hardening the threaded nut. A threaded nut produced according to the method can be part of a ball screw drive, the flange of which can be welded to a provided machine part by the user.Type: ApplicationFiled: June 25, 2020Publication date: September 1, 2022Inventors: Mario Kreutzer, Dieter Eckert, Paul Heinz, Richard Baier
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Publication number: 20220260139Abstract: The disclosure relates to a method for producing a threaded nut of a threaded drive. In a forming process, a sleeve is produced from a steel sheet which is suitable for case-hardening. A flange is integrally formed on the sleeve for welding to a machine part. A welding surface of the flange has a diffusion-inhibiting layer which inhibits the penetration of carbon into the welding surface. The sleeve is case-hardened, and the welding surface is then exposed by removing the diffusion-inhibiting layer. The sleeve can be bonded to a machine part on the exposed welding surface of the sleeve.Type: ApplicationFiled: June 25, 2020Publication date: August 18, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Mario Kreutzer, Dieter Eckert, Paul Heinz, Richard Baier
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Publication number: 20220205519Abstract: A profiled nut (1) of a screw drive includes a sleeve (3) produced from sheet steel, has a non-cuttingly formed rolling profile (4) on the inner circumference for rolling contact with rolling bodies and is hardened in a heat treatment method at least in the region of the rolling profile (4). An inner lateral surface of the sleeve (3) having the rolling profile (4) is hardened and has a higher Rockwell hardness. An outer lateral surface of the sleeve (3) is designed such that it can be welded and has a lower Rockwell hardness.Type: ApplicationFiled: April 22, 2020Publication date: June 30, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Mario Kreutzer, Richard Baier, Thomas Kandler, Paul Heinz
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Patent number: 11015688Abstract: A ball screw drive comprising a leadscrew that has at least one outer ball groove and comprising a threaded nut that has at least one inner ball groove, which ball grooves together to form a ball channel in which balls, via which the leadscrew is guided relative to the threaded nut, are accommodated, wherein in the ball groove of the threaded nut is provided at least one radially closed pocket in which a deflection element for deflecting the balls moving in the ball groove is accommodated, wherein the threaded nut has an outer deflection device, which outer deflection device is axially in front of the deflection element in the form of an individual deflection element, is situated on the outer side of the threaded nut and engages in two radial openings in the threaded nut, and by means of which outer deflection device the balls are axially offset.Type: GrantFiled: July 14, 2016Date of Patent: May 25, 2021Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario Kreutzer, Gerd Sanewski, Nadine Kliemann
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Patent number: 10968992Abstract: A ball screw drive, comprising a screw that includes at least one outer ball groove, and a threaded nut that includes at least one inner ball groove, wherein the inner and outer ball grooves combine to form a ball channel in which one or more balls are accommodated, wherein at least one pocket is formed in the threaded nut, in which a deflection element is accommodated for deflecting the balls rolling in the ball groove, wherein the deflection element includes a deflection body, on which an intake and discharge section are formed and open into the ball groove to enable the one or more balls to enter and exit the groove, and wherein the intake and discharge section includes a snaking bath that enables the ball to be moved from one ball groove section into an adjacent ball path section.Type: GrantFiled: July 14, 2016Date of Patent: April 6, 2021Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario Kreutzer, Gerd Sanewski
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Publication number: 20210088116Abstract: A ball screw nut for a ball screw drive includes a sleeve element which is formed as a sheet metal part and has a thread which is formed for the largest part as a load channel, wherein a relief section formed within the thread extends from the load channel at least slightly radially outwards and adjoins a deflection channel.Type: ApplicationFiled: January 25, 2019Publication date: March 25, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Claus Pfeffer, Richard Baier, Mario Kreutzer
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Publication number: 20210071743Abstract: A ball-screw actuator includes a screw nut having a metal core and an over-molded plastic outer shell. The plastic outer shell includes features which would be expensive to manufacture in a single piece metal screw nut, such as an anti-rotation feature, an axial position control feature, and a lateral position control feature. The anti-rotation feature may take the form of an axial groove or of an axial ridge.Type: ApplicationFiled: September 6, 2019Publication date: March 11, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Renato de Paula, Mario Kreutzer, Dieter Adler, Michael Zinnecker
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Patent number: 10641370Abstract: The invention relates to a ball screw including a spindle nut arranged on a lead screw, and balls, which roll on ball grooves of the spindle nut and of the lead screw, and a circumferential stop on the screw side and a circumferential stop on the nut side, the spindle nut being arranged in a sleeve surrounding the ball nut, the sleeve is formed from sheet metal by shaping and the nut-side circumferential stop is formed integrally on the sleeve.Type: GrantFiled: September 3, 2015Date of Patent: May 5, 2020Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario Kreutzer, Richard Baier, Markus Oswald, Dieter Adler
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Patent number: 10626966Abstract: A ball screw of an electromechanical brake comprising a ball screw nut disposed on a spindle, wherein the spindle includes complementary tracks formed on the spindle and the ball screw nut. The ball screw further includes a race that includes a plurality of ball pockets spaced apart from one another and a protruding section that includes a concave bearing surface, a ball housed between the concave bearing surface and an end section of a first spring element for a main load direction, and a second spring element for a return stroke direction, wherein the second spring element includes a second spring end section in contact with an opposite side of the bearing surface.Type: GrantFiled: January 14, 2016Date of Patent: April 21, 2020Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario Kreutzer, Christian Marty, Harry Schmeiko, Manfred Gotz
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Publication number: 20190072162Abstract: Ball screws are disclosed, such as a ball screw having a spindle nut which is arranged on a threaded spindle and in which balls are received which roll along ball tracks of the spindle nut and the threaded spindle, and having a first stop element associated with the spindle nut and a second stop element associated with the threaded spindle, wherein at least one stop element has a resiliently deformable body.Type: ApplicationFiled: October 19, 2016Publication date: March 7, 2019Applicant: Schaeffler Technologies AG & Co. KGInventors: Markus Oswald, Stefan Michaloudis, Mario Kreutzer
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Publication number: 20180216711Abstract: A ball screw drive, comprising a screw that includes at least one outer ball groove, and a threaded nut that includes at least one inner ball groove, wherein the inner and outer ball grooves combine to form a ball channel in which one or more balls are accommodated, wherein at least one pocket is formed in the threaded nut, in which a deflection element is accommodated for deflecting the balls rolling in the ball groove, wherein the deflection element includes a deflection body, on which an intake and discharge section are formed and open into the ball groove to enable the one or more balls to enter and exit the groove, and wherein the intake and discharge section includes a snaking bath that enables the ball to be moved from one ball groove section into an adjacent ball path section.Type: ApplicationFiled: July 14, 2016Publication date: August 2, 2018Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario KREUTZER, Gerd SANEWSKI
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Publication number: 20180209521Abstract: A ball screw drive comprising a leadscrew that has at least one outer ball groove and comprising a threaded nut that has at least one inner ball groove, which ball grooves together to form a ball channel in which balls, via which the leadscrew is guided relative to the threaded nut, are accommodated, wherein in the ball groove of the threaded nut is provided at least one radially closed pocket in which a deflection element for deflecting the balls moving in the ball groove is accommodated, wherein the threaded nut has an outer deflection device, which outer deflection device is axially in front of the deflection element in the form of an individual deflection element, is situated on the outer side of the threaded nut and engages in two radial openings in the threaded nut, and by means of which outer deflection device the balls are axially offset.Type: ApplicationFiled: July 14, 2016Publication date: July 26, 2018Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario KREUTZER, Gerd SANEWSKI, Nadine KLIEMANN
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Publication number: 20180058553Abstract: A threaded drive shaft is provided that has a threaded spindle, a spindle nut, and a spindle disk. The threaded spindle has two different sections with two different outer diameters. The spindle nut is about the larger-diameter portion, such that rotation of the threaded spindle within the spindle nut is allowed. The spindle disk is connected about the smaller-diameter portion of the threaded spindle, and is fixed thereto in a rotationally-fixed manner. The spindle disk has a tapered surface contacting a corresponding tapered surface of the threaded spindle to inhibit rotation. The spindle disk further includes a flange extending from an outer surface thereof that defines a first limit stop surface configured to contact a second limit stop surface of the spindle nut to limit rotation.Type: ApplicationFiled: September 1, 2017Publication date: March 1, 2018Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Reinhard KICK-RODENBUECHER, Mario KREUTZER
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Publication number: 20180017147Abstract: A ball screw of an electromechanical brake comprising a ball screw nut disposed on a spindle, wherein the spindle includes complementary tracks formed on the spindle and the ball screw nut. The ball screw further includes a race that includes a plurality of ball pockets spaced apart from one another and a protruding section that includes a concave bearing surface, a ball housed between the concave bearing surface and an end section of a first spring element for a main load direction, and a second spring element for a return stroke direction, wherein the second spring element includes a second spring end section in contact with an opposite side of the bearing surface.Type: ApplicationFiled: January 14, 2016Publication date: January 18, 2018Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Mario KREUTZER, Christian MARTY, Harry SCHMEIKO, Manfred GOETZ
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Publication number: 20170299028Abstract: The invention relates to a ball screw including a spindle nut arranged on a lead screw, and balls, which roll on ball grooves of the spindle nut and of the lead screw, and a circumferential stop on the screw side and a circumferential stop on the nut side, the spindle nut being arranged in a sleeve surrounding the ball nut, the sleeve is formed from sheet metal by shaping and the nut-side circumferential stop is formed integrally on the sleeve.Type: ApplicationFiled: September 3, 2015Publication date: October 19, 2017Applicant: Schaeffler Techologies AG & Co. KGInventors: Mario Kreutzer, Richard Baier, Markus Oswald, Dieter Adler
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Patent number: 9746059Abstract: A ball screw drive with a spindle nut (1) arranged on a screw spindle (2) and a continuous ball channel (7) formed by the screw spindle (2) and the spindle nut (1), in which channel balls arranged along a continuous ball track (8) circulate continuously, wherein the continuous ball channel (7) includes a load channel (9) wound in a spiral shape, with more than one winding, about a spindle axis (S) and a deflecting channel (10) which continuously connects the two ends of the load channel (9) to one another, wherein the spindle nut (1) has a nut part (4), on the inner circumference of which a ball groove (6) is formed being wound in a spiral shape about the spindle axis S, which ball groove, together with a ball groove (3) of the screw spindle (2) being wound in a spiral shape about the spindle axis S, forms the load channel (9), and wherein a deflecting element (5) including the deflecting channel (10) is arranged on the outer periphery of the nut part (4), and the deflecting ends (12) of the deflecting elemenType: GrantFiled: July 4, 2013Date of Patent: August 29, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Mario Kreutzer, Dieter Adler