Patents by Inventor Alfred Weidinger
Alfred Weidinger 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: 10215234Abstract: A rolling-element bearing cage or rolling-element bearing cage segment is formed from aluminum alloy AA6082 and/or AA7020 and may have a tensile strength of at least 350 MPa and/or a yield strength of at least 310 MPa and/or a hardness of at least 100 HBW. Also a method of forming a rolling-element bearing cage or rolling-element bearing cage segment from aluminum alloy AA6082 and/or AA 7020.Type: GrantFiled: July 24, 2015Date of Patent: February 26, 2019Assignee: Aktiebolaget SKFInventors: Anselme Loemba, Joanna Dzwonczyk, Alfred Weidinger
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Publication number: 20180149199Abstract: A rolling-element bearing cage or rolling-element bearing cage segment is formed from aluminum alloy AA6082 and/or AA7020 and may have a tensile strength of at least 350 MPa and/or a yield strength of at least 310 MPa and/or a hardness of at least 100 HBW. Also a method of forming a rolling-element bearing cage or rolling-element bearing cage segment from aluminum alloy AA6082 and/or AA 7020.Type: ApplicationFiled: July 24, 2015Publication date: May 31, 2018Inventors: Anselme Loemba, Joanna Dzwonczyk, Alfred Weidinger
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Patent number: 8882195Abstract: A seat base having a first pair of U-shaped tubular elements capable of being deformed, the upper end portion is arranged in a torsionally rigid manner in the vertical direction on a lower surface of the seat part and the lower end portion is arranged in a torsionally rigid manner in the vertical direction on an upper surface of a region of the vehicle floor, and a second pair of S-shaped tubular elements capable of being deformed, the upper end portion is arranged in a torsionally rigid manner in the vertical direction on the lower surface of the seat part and the lower end portion is arranged in a torsionally rigid manner in the vertical direction on the upper surface of the region of the vehicle floor, wherein the first pair of elements is arranged substantially in front of the second pair of elements in the direction of the seat.Type: GrantFiled: November 15, 2011Date of Patent: November 11, 2014Assignee: Grammer AGInventors: Dirk Kaessner, Wolfgang Beier, Andreas Vogl, Alfred Weidinger
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Publication number: 20120126592Abstract: A seat base having a first pair of U-shaped tubular elements capable of being deformed, the upper end portion is arranged in a torsionally rigid manner in the vertical direction on a lower surface of the seat part and the lower end portion is arranged in a torsionally rigid manner in the vertical direction on an upper surface of a region of the vehicle floor, and a second pair of S-shaped tubular elements capable of being deformed, the upper end portion is arranged in a torsionally rigid manner in the vertical direction on the lower surface of the seat part and the lower end portion is arranged in a torsionally rigid manner in the vertical direction on the upper surface of the region of the vehicle floor, wherein the first pair of elements is arranged substantially in front of the second pair of elements in the direction of the seat.Type: ApplicationFiled: November 15, 2011Publication date: May 24, 2012Inventors: Dirk KAESSNER, Wolfgang BEIER, Andreas VOGL, Alfred WEIDINGER
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Patent number: 6979132Abstract: A cylindrical roller bearing includes an outer bearing ring, an inner bearing ring and cylindrical rollers located between the outer and inner bearing rings. One of the rings has side rims forming an axial stop for the cylindrical rollers. The bearing ring on which the side rims are not provided is formed with at least one groove outside the axial extension of the cylindrical rollers. A ring of spring-elastic material is positioned in the groove to form an axial stop for the cylindrical rollers. The periphery of the ring has no interruptions. To improve the running behavior of the cylindrical roller bearing, the ring possesses a V-shaped cross-section with two legs.Type: GrantFiled: October 7, 2003Date of Patent: December 27, 2005Assignee: AB SKFInventors: Hans-Jürgen Friedrich, Bernhard Groschek, Torbjörn Hedman, Rut Heemskerk, Jürgen Stürzengerger, Alfred Weidinger
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Publication number: 20040131296Abstract: A cylindrical roller bearing includes an outer bearing ring, an inner bearing ring and cylindrical rollers located between the outer and inner bearing rings. One of the rings has side rims forming an axial stop for the cylindrical rollers. The bearing ring on which the side rims are not provided is formed with at least one groove outside the axial extension of the cylindrical rollers. A ring of spring-elastic material is positioned in the groove to form an axial stop for the cylindrical rollers. The periphery of the ring has no interruptions. To improve the running behavior of the cylindrical roller bearing, the ring possesses a V-shaped cross-section with two legs.Type: ApplicationFiled: October 7, 2003Publication date: July 8, 2004Applicant: AB SKFInventors: Hans-Jurgen Friedrich, Bernhard Groschek, Torbjorn Hedman, Rut Heemskerk, Jurgen Sturzengerger, Alfred Weidinger
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Patent number: 6579011Abstract: An antifriction bearing includes a plurality of rolling elements each having a lateral surface possessing a conical shape, with the rolling elements being positioned between a conical raceway and a cylindrical raceway to roll along the conical raceway and the cylindrical raceway. The lateral surface of each rolling element forms an angle with a center axis of the rolling element that is 3° at maximum, and the lateral surface of each rolling element has a convex curvature that is superimposed on the conical shape. The bearing can also include a first bearing ring having a running surface constituting one of the conical and cylindrical raceways. An antifriction bearing arrangement incorporating such an antifriction bearing is also provided with a stop element having a stop face contacting the end face of each of the rolling elements.Type: GrantFiled: November 23, 2001Date of Patent: June 17, 2003Assignee: SKF GmbHInventors: Klaus Muschiol, Robert Grüll, Armin Olschewski, Alfred Weidinger
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Publication number: 20020061152Abstract: An antifriction bearing includes a plurality of rolling elements each having a lateral surface possessing a conical shape, with the rolling elements being positioned between a conical raceway and a cylindrical raceway to roll along the conical raceway and the cylindrical raceway. The lateral surface of each rolling element forms an angle with a center axis of the rolling element that is 3° at maximum, and the lateral surface of each rolling element has a convex curvature that is superimposed on the conical shape. The bearing can also include a first bearing ring having a running surface constituting one of the conical and cylindrical raceways. An antifriction bearing arrangement incorporating such an antifriction bearing is also provided with a stop element having a stop face contacting the end face of each of the rolling elements.Type: ApplicationFiled: November 23, 2001Publication date: May 23, 2002Inventors: Klaus Muschiol, Robert Grull, Armin Olschewski, Alfred Weidinger
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Patent number: 6213648Abstract: A process for producing a sheet metal cage for roller bearings involves using a press roll to form a disk-shaped circular sheet metal blank into a tubular element having radially inwardly projecting and axially extending ribs, and stamping window-shaped pockets into the tubular element between adjoining ribs to produce a cage of a rolling bearing for receiving rolls in the window-shaped cutouts. The sheet metal cage produced by the method possesses a conically rolled outer surface and side rings arranged at opposite ends. The cage includes ridges extending between the side rings and window-shaped pockets between adjacent pairs of ridges for receiving tapered rolls. The cage also includes ribs extending inwardly from each of the ridges, with the ribs possessing tapering side surfaces.Type: GrantFiled: February 19, 1999Date of Patent: April 10, 2001Assignee: SKF GmbHInventor: Alfred Weidinger
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Patent number: 6196728Abstract: A solid cage for roller bearings, where the pitch circle of the rollers is between the radial center of the cage and its bore, with guide surfaces on the webs which conform to the lateral surface of the rollers, thus forming retaining edges in the area of the bore, across which the rollers are snapped into the pockets, characterized in that the guide surface 4 is interrupted by at least one strip 10, which curves to form an arc facing the roller 3, this strip being recessed into the guide surface 4 in the radially outward area of the cage, but projecting beyond the guide surface 4 in the radially inward area to serve as an additional retaining projection 12 for the roller3.Type: GrantFiled: November 23, 1998Date of Patent: March 6, 2001Assignee: SKF GmbHInventors: Michael Wahler, Alfred Weidinger
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Patent number: 5096310Abstract: A rolling bearing having separated bearing ring having held together by a dimensionally stable holding ring tightly fit over the ends of the ring halves. The axial holding of the ring halves is effected by a row of snap elements distributed about the circumference of the holding ring, the snap elements extending into annular grooves adjacent the ends of the ring halves. The snap elements are joined to the surface of the holding ring to enable bending at the joints thereof.Type: GrantFiled: October 27, 1986Date of Patent: March 17, 1992Assignee: SKF GmbHInventors: Hans Meining, deceased, by Jurgen G. Meining, Heir, Alfred Weidinger, Theo Schmitt, Manfred Schlegelmilch