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).

  • Patent number: 9347536
    Abstract: A spindle nut for a ball screw with a nut part on whose inner periphery there is a spiral ball groove that winds around a spindle axis for the rolling of balls and with two deflection elements, the balls are deflectable into the curved deflection channel of each deflection element and the nut part has two recesses that are spaced apart from each other in the axial direction and one of the deflection elements is arranged in each recess. The nut part is provided with a straight return channel for the balls, and the straight return channel is connected to the two deflection channels. The balls are movable along a ball track in the curved deflection channel and in the straight return channel, and the straight return channel is arranged within a wall thickness of the spindle nut and is arranged at an angle relative to the spindle axis.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: May 24, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Mario Kreutzer, Gerd Sanewski
  • Publication number: 20160108999
    Abstract: Spindle nut (1) for a ball screw drive, having a fixed external diameter (AD), a helical ball groove which is formed on the inner side (2) thereof, an inner ring (5) which is formed on the outer side thereof, has an annular ball groove (4) and forms a supporting bearing (6) together with an outer ring (8) and balls (7) which are arranged in between. The inner ring (5) has a first stepped section (10) which extends as far as the ball groove (4), has a fixed outer diameter (Si1) and is adjoined on the other side of the ball groove (4) by a second stepped section (11) having a reduced outer diameter (Si2).
    Type: Application
    Filed: February 27, 2014
    Publication date: April 21, 2016
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Mario Kreutzer
  • Publication number: 20150167800
    Abstract: 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 elemen
    Type: Application
    Filed: July 4, 2013
    Publication date: June 18, 2015
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Mario Kreutzer, Dieter Adler
  • Publication number: 20130298710
    Abstract: A spindle nut for a ball screw with a nut part on whose inner periphery there is a spiral ball groove that winds around a spindle axis for the rolling of balls and with two deflection elements, the balls are deflectable into the curved deflection channel of each deflection element and the nut part has two recesses that are spaced apart from each other in the axial direction and one of the deflection elements is arranged in each recess. The nut part is provided with a straight return channel for the balls, and the straight return channel is connected to the two deflection channels. The balls are movable along a ball track in the curved deflection channel and in the straight return channel, and the straight return channel is arranged within a wall thickness of the spindle nut and is arranged at an angle relative to the spindle axis.
    Type: Application
    Filed: April 15, 2013
    Publication date: November 14, 2013
    Applicant: Schaeffer Technologies AG & Co. KG
    Inventors: Mario Kreutzer, Gerd Sanewski
  • Publication number: 20100242653
    Abstract: A deflecting body for a ball screw, which has two body parts to be connected to one another which delimit a deflecting channel which carries rolling bodies. Latching or jamming projections are provided on one or both body parts. The latching or jamming projections, in the assembled final position, latch or are jammed in a frictionally engaging manner in latching or jamming receptacles provided on the other body part.
    Type: Application
    Filed: February 17, 2010
    Publication date: September 30, 2010
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Dieter ADLER, Mario KREUTZER