Patents by Inventor Luca Ciulla

Luca Ciulla 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: 9926974
    Abstract: A roller bearing including an outer ring, at least one inner ring and a plurality of rolling bodies inserted between the outer ring and the inner ring. The outer ring presents an osculation of between 0.51 and 0.56 and the inner ring presents an annular race having a bottom surface delimited by an annular relief (16) including a cylindrical section (18) with a greater diameter than that of the bottom surface (12), a first convex curved section (19) having a pre-established radius of curvature (R1) and which connects with continuity the annular bottom surface (12) of the first annular race with the cylindrical section (18), a second convex curved section (20) which connects with continuity with the cylindrical section (18) and a third concave curved section (21) that connects with continuity with the second section (20).
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, William Finetti, Francesco Lamboglia, Gerardo Rainone, Laura Sguotti
  • Patent number: 9538697
    Abstract: A hub-bearing assembly for rotatably mounting a tilling disc about an axis of rotation. The hub-bearing assembly includes an annular hub providing an axially extending tubular portion, comprising a housing and a radially outer flange for mounting a disc. A bearing unit is mounted within the housing. An elastic damping body axially is fitted between the radially outer flange and the disc.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 10, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, Carlo Maldera
  • Publication number: 20160369841
    Abstract: A roller bearing including an outer ring, at least one inner ring and a plurality of rolling bodies inserted between the outer ring and the inner ring. The outer ring presents an osculation of between 0.51 and 0.56 and the inner ring presents an annular race having a bottom surface delimited by an annular relief (16) including a cylindrical section (18) with a greater diameter than that of the bottom surface (12), a first convex curved section (19) having a pre-established radius of curvature (R1) and which connects with continuity the annular bottom surface (12) of the first annular race with the cylindrical section (18), a second convex curved section (20) which connects with continuity with the cylindrical section (18) and a third concave curved section (21) that connects with continuity with the second section (20).
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Luca Ciulla, William Finetti, Francesco Lamboglia, Gerardo Rainone, Laura Sguotti
  • Patent number: 9371860
    Abstract: A hub-bearing assembly including a rolling bearing having an outer ring, at least an inner ring and at least a row of rolling bodies is provided. The rolling bearing including a housing containing the rolling bearing and having an annular cylindrical shape, the housing at one end forming a radial flange, a closing cap, assembled on the housing at the opposite end with respect to the end, where the housing forms the flange, the cap being cup shaped and having a bottom wall, transverse to the rolling bearing axis, and a side wall, constrained to the bottom wall. First assembly means provided on the housing external wall, the first assembly means being fixed and localized in angular correspondence with the ribs and cooperating with second assembly means, movable and realized on the internal surface of the side wall for assembling, in a dismantled way, the cap on the housing.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: June 21, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, Ferdinando Patalacci
  • Publication number: 20160031261
    Abstract: A hub bearing unit comprising an outer ring; an inner ring rotating about a common symmetry axis of the outer ring and of the inner ring; a flange which extends radially from the outer ring; a plurality of rolling bodies interposed between the outer ring and the inner ring; a sealing assembly and a protective shield for the sealing assembly, arranged on the side opposite to the flange. The protective shield is constituted by a metal sheet and comprises a cylindrical portion that can be mounted integral with a stationary axle, and a flange portion, extending radially on the outside of the cylindrical portion, facing the sealing assembly, from a first end of the cylindrical portion opposite to the flange of the outer ring. A cylindrical portion second end is provided radially inwards with an L-fold which delimits an annular axial shoulder cooperating in abutment with the inner ring.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 4, 2016
    Applicant: Aktiebolaget SKF
    Inventors: Luca CIULLA, Carlo MALDERA
  • Patent number: 9226441
    Abstract: A hub-bearing assembly for agricultural use having a rolling bearing, a housing, a closing cap and an axial retention feature. The roller bearing includes an outer ring, at least one inner ring, at least a row of rolling bodies and a sealing device. The housing includes an almost annular cylindrical shape, the housing at one end forming a radial flange, containing the rolling bearing and being in direct contact with the bearing outer ring. The closing cap is assembled on the housing at the opposite end with respect to the end, where the housing forms the flange. It is noted that the cap is cup shaped. The axial retention feature is located along an external surface of the outer ring. The retention feature is located opposed to the axial sliding of the outer ring with respect to the housing.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 5, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, Carlo Maldera, Ferdinando Patalacci
  • Publication number: 20150327427
    Abstract: A hub-bearing assembly for rotatably mounting a tilling disc about an axis of rotation. The hub-bearing assembly includes an annular hub providing an axially extending tubular portion, comprising a housing and a radially outer flange for mounting a disc. A bearing unit is mounted within the housing. An elastic damping body axially is fitted between the radially outer flange and the disc.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 19, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventors: Luca CIULLA, Carlo MALDERA
  • Publication number: 20150267753
    Abstract: A hub-bearing assembly including a rolling bearing having an outer ring, at least an inner ring and at least a row of rolling bodies is provided. The rolling bearing including a housing containing the rolling bearing and having an annular cylindrical shape, the housing at one end forming a radial flange, a closing cap, assembled on the housing at the opposite end with respect to the end, where the housing forms the flange, the cap being cup shaped and having a bottom wall, transverse to the rolling bearing axis, and a side wall, constrained to the bottom wall. First assembly means provided on the housing external wall, the first assembly means being fixed and localized in angular correspondence with the ribs and cooperating with second assembly means, movable and realized on the internal surface of the side wall for assembling, in a dismantled way, the cap on the housing.
    Type: Application
    Filed: September 8, 2014
    Publication date: September 24, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, Ferdinando Patalacci
  • Patent number: 9103372
    Abstract: A hub-bearing assembly is disclosed, wherein the hub-bearing assembly is used for rotatably mounting a tilling disc about an axis of rotation is disclosed. The hub-bearing assembly comprises an annular hub comprising an axially extending tubular portion defining a cylindrical housing and an outer flange for mounting a disc, a bearing unit mounted in the housing, and an elastic damping body arranged in the housing and radially interposed between the hub and an outer ring of the bearing unit.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 11, 2015
    Assignee: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, Carlo Maldera, Yannick Sellier, Hans-Joachim vom Stein
  • Publication number: 20150156954
    Abstract: A hub-bearing assembly for agricultural use having a rolling bearing, a housing, a closing cap and an axial retention feature. The roller bearing includes an outer ring, at least one inner ring, at least a row of rolling bodies and a sealing device. The housing includes an almost annular cylindrical shape, the housing at one end forming a radial flange, containing the rolling bearing and being in direct contact with the bearing outer ring. The closing cap is assembled on the housing at the opposite end with respect to the end, where the housing forms the flange. It is noted that the cap is cup shaped. The axial retention feature is located along an external surface of the outer ring. The retention feature is located opposed to the axial sliding of the outer ring with respect to the housing.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Applicant: AKTIEBOLAGET SKF
    Inventors: Luca CIULLA, Carlo MALDERA, Ferdinando PATALACCI
  • Publication number: 20150125103
    Abstract: A pulley-bearing assembly provided with a pulley and a rolling bearing confined by respective coupling surfaces co-axial to each other and defining a groove there between; the rolling bearing being provided with two rows of rolling bodies having pitch diameters (D, Di) of different size, and a metallic ring being pressed into the groove and deformed so as to join the pulley with the bearing.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Applicant: Aktiebolaget SKF
    Inventors: Luca Ciulla, Ferdinando Patalacci
  • Patent number: 8888372
    Abstract: A sensor-carrier cap for a bearing of a wheel hub, the cap being made of plastic material and having a bottom wall arranged transversely to a central axis and providing a seat for accommodating a sensor, a cylindrical mounting wall extending axially from one side of the bottom wall around the axis; snap locking means projecting in a radially outer direction from the cylindrical wall, for locking the sensor-carrier cap on a tubular appendage of a wheel hub-bearing.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 18, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Luca Ciulla, William Finetti, Philippe Weber
  • Patent number: 8770850
    Abstract: An asymmetric wheel hub assembly with two rows of rolling elements of different pitch diameters has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The angle of contact and the osculation ratios of a first one of the two rows of the rolling elements is different than the angle of contact and osculation ratios of a second one of the two rows of the rolling elements.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Luca Ciulla
  • Patent number: 8714828
    Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The osculation ratios of a first one of the two rows of the rolling elements are different than the osculation ratios of a second one of the two rows of the rolling elements.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: May 6, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Luca Ciulla
  • Patent number: 8678663
    Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The angle of contact and the osculation ratios of a first one of the two rows of the rolling elements are different than the angle of contact and osculation ratios of a second one of the two rows of the rolling elements.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: March 25, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Luca Ciulla
  • Publication number: 20140029885
    Abstract: A hub-bearing assembly is disclosed, wherein the hub-bearing assembly is used for rotatably mounting a tilling disc about an axis of rotation is disclosed. The hub-bearing assembly comprises an annular hub comprising an axially extending tubular portion defining a cylindrical housing and an outer flange for mounting a disc, a bearing unit mounted in the housing, and an elastic damping body arranged in the housing and radially interposed between the hub and an outer ring of the bearing unit.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Luca Ciulla, Carlo Maldera, Yannick Sellier, Hans-Joachim vom Stein
  • Publication number: 20130278046
    Abstract: A sensor-carrier cap for a bearing of a wheel hub, the cap being made of plastic material and having a bottom wall arranged transversely to a central axis and providing a seat for accommodating a sensor, a cylindrical mounting wall extending axially from one side of the bottom wall around the axis; snap locking means projecting in a radially outer direction from the cylindrical wall, for locking the sensor-carrier cap on a tubular appendage of a wheel hub-bearing.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 24, 2013
    Applicant: AKTIEBOLAGET SKF
    Inventors: Luca Ciulla, William Finetti, Philippe Weber
  • Patent number: 8371950
    Abstract: A coupling assembly for connecting a hub bearing unit with a constant velocity joint includes a bell member of a constant velocity joint having a tubular section disposed about a driving ring and having an end surface facing a hub member end surface and an inner circumferential surface defining a bore. The inner surface has inner splines engageable with driving ring outer splines and a tapering surface section. A sealing member is disposed between the hub and bell end surfaces and seals the space between the surfaces. An annular retainer disposed within the bell bore has a tapering outer circumferential surface engageable with the inner surface section of the bore such that the tubular section is retained between the retainer outer surface and the hub end surface, preventing disengagement of the splines and compressing the sealing member between the end surfaces. A connector connects the retainer with the hub.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: February 12, 2013
    Assignee: Aktiebolaget SKF
    Inventor: Luca Ciulla
  • Publication number: 20110254352
    Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The angle of contact and the osculation ratios of a first one of the two rows of the rolling elements are different than the angle of contact and osculation ratios of a second one of the two rows of the rolling elements.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 20, 2011
    Applicant: Aktiebolaget SKF
    Inventor: Luca Ciulla
  • Publication number: 20110254353
    Abstract: A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The osculation ratios of a first one of the two rows of the rolling elements are different than the osculation ratios of a second one of the two rows of the rolling elements.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 20, 2011
    Applicant: AKTIEBOLAGET SKF
    Inventor: Luca Ciulla