Patents by Inventor Riccardo Restivo
Riccardo Restivo 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: 20250003448Abstract: A co-mouldable tube (10) includes with two rolling bearings (20) arranged along a respective axis (A) of rotation. A spacer (40) is interposed between the two rolling bearings (20) so as to give the co-mouldable tube (10) structural rigidity. A cylindrical containment sleeve (5) is co-moulded around the two rolling bearings (29) and the spacer (40). Two metal bushes (60) are interposed between the cylindrical sleeve (50) and the two rolling bearings (20) so as to be co-moulded together with the said cylindrical sleeve (50).Type: ApplicationFiled: June 21, 2024Publication date: January 2, 2025Inventors: Piero SANTANGELO, Riccardo RESTIVO, Enzo AMICO, Giuseppe GRASSI
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Patent number: 12180998Abstract: The present disclosure provides a bearing cage and a ball bearing. The bearing cage includes an annular backbone portion having a front side and an opposite back side and a plurality of cantilever portions extending from the front side of the backbone portion in an axially forward direction of the bearing cage. The cantilever portions are arranged along a circumference of the annular backbone portion, defining a plurality of pockets. The backbone portion has a radial thickness larger than that of the plurality of cantilever portions. Each of the plurality of cantilever portions includes two prong portions and a connection portion between the two prong portions. The bearing cage further includes one or more of a plurality of recesses formed in a radially outer side of the cantilever portions, and a plurality of grooves formed in the radially inner side of the bearing cage.Type: GrantFiled: March 22, 2023Date of Patent: December 31, 2024Assignee: AKTIEBOLAGET SKFInventors: Hongyuan An, Riccardo Restivo
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Publication number: 20240426342Abstract: A bearing unit (10) having an inner ring (20) including, for each side (L) of the bearing unit (10), a shaped groove (23). The bearing unit has an outer ring (30) defining a cylindrical gap (11) with the inner ring. A plurality of rolling elements (40) are disposed inside the gap. A sealing device (50) is mounted on both of the sides of the bearing unit to protect the gap from contaminants and pollutants, and to prevent lubricant inside the gap from leaking out. The sealing device having, for each side, two sealing lips (54) (55) disposed inside the groove, a flexible support arm (56) for the two sealing lips, and an intrinsic control element (100) to control the bending of the arm to control flexibility of the arm and a friction force that a contacting sealing lip (54) exerts on the inner ring.Type: ApplicationFiled: June 18, 2024Publication date: December 26, 2024Inventors: Andrea A. BERTOLINI, Fausto BARACCA, Riccardo RESTIVO
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Publication number: 20240384758Abstract: Bearing unit (30) has a central axis of rotation (X) and a retaining cage (40) for a plurality of rolling bodies (34) interposed between a radially outer ring (31) and a radially inner ring (33). The retaining cage (40) has a base rib (41), a plurality of tenons (42) that are spaced apart circumferentially and rigidly connected to the rib (41), and a plurality of pockets (43). Each pocket (43) is delimited by the rib (41) and by a respective pair of adjacent tenons (42). Each pocket (43) is defined by a respective radially outer spherical surface (44) and by at least one respective radially inner cylindrical surface (45) radially adjacent to the spherical surface (44).Type: ApplicationFiled: May 3, 2024Publication date: November 21, 2024Inventors: Riccardo RESTIVO, Piero SANTANGELO, Gianpiero SCALTRITI, Nils MANNE
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Patent number: 12025184Abstract: A sealing device for a bearing unit that includes an inner ring, an outer ring, a plurality of rolling bodies interposed between the inner ring and the outer ring, the sealing device having a radially outer anchoring portion, an intermediate portion, and a radially inner sealing portion distal to the radially outer anchoring portion, the sealing device being made of a single polymer plastic material.Type: GrantFiled: May 3, 2022Date of Patent: July 2, 2024Assignee: AKTIEBOLAGET SKFInventors: Donato Mariella, Riccardo Restivo, Giorgia D'Amico, Claudio Foti
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Publication number: 20230220875Abstract: The present disclosure provides a bearing cage and a ball bearing. The bearing cage includes an annular backbone portion having a front side and an opposite back side and a plurality of cantilever portions extending from the front side of the backbone portion in an axially forward direction of the bearing cage. The cantilever portions are arranged along a circumference of the annular backbone portion, defining a plurality of pockets. The backbone portion has a radial thickness larger than that of the plurality of cantilever portions. Each of the plurality of cantilever portions includes two prong portions and a connection portion between the two prong portions. The bearing cage further includes one or more of a plurality of recesses formed in a radially outer side of the cantilever portions, and a plurality of grooves formed in the radially inner side of the bearing cage.Type: ApplicationFiled: March 22, 2023Publication date: July 13, 2023Inventors: HONGYUAN AN, Riccardo Restivo
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Publication number: 20230160426Abstract: A cage for retaining one or more rolling bodies of a bearing unit, the cage including a rib having a plurality of spherical concave surfaces, and a plurality of circumferentially spaced tenons extending from a first axial side of the rib, each tenon of the plurality of tenons including a plurality of spherical concave surfaces and an armature defining a box shape, the armature including a plurality of first portions resting on a first plane and a plurality of second portions resting on a second plane, each first portion of the plurality of first portions alternating circumferentially with each second portion, and the spherical concave surfaces of the rib defining, with the spherical concave surfaces of the tenons, a plurality of spherical cavities to hold each rolling body of the row of rolling bodies in place.Type: ApplicationFiled: November 16, 2022Publication date: May 25, 2023Inventors: Riccardo Restivo, Piero Santangelo, Gianpiero Scaltriti, Flora Rosso
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Patent number: 11655853Abstract: The present disclosure provides a bearing cage and a bearing. The bearing cage comprising: a generally annular backbone portion having a front side and an opposite back side; a plurality of cantilever portions extending from the front side of the backbone portion in an axially forward direction of the bearing cage, the cantilever portions being arranged along a circumference of the annular backbone portion, defining a plurality of pockets bearing, wherein the backbone portion has a radial thickness which is larger than that of the plurality of cantilever portions. Each of the plurality of cantilever portions comprises two prong portions and a connection portion between the two prong portions. The bearing cage further comprises one or more of: a plurality of recesses formed in a radially outer side of the cantilever portions, and a plurality of grooves formed in the radially inner side of the bearing cage.Type: GrantFiled: September 13, 2021Date of Patent: May 23, 2023Inventors: Hongyuan An, Riccardo Restivo
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Publication number: 20220349445Abstract: A sealing device for a bearing unit that includes an inner ring, an outer ring, a plurality of rolling bodies interposed between the inner ring and the outer ring, the sealing device having a radially outer anchoring portion, an intermediate portion, and a radially inner sealing portion distal to the radially outer anchoring portion, the sealing device being made of a single polymer plastic material.Type: ApplicationFiled: May 3, 2022Publication date: November 3, 2022Inventors: Donato Mariella, Riccardo Restivo, Girogia D'Amico, Claudio Foti
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Publication number: 20220090632Abstract: The present disclosure provides a bearing cage and a bearing. The bearing cage comprising: a generally annular backbone portion having a front side and an opposite back side; a plurality of cantilever portions extending from the front side of the backbone portion in an axially forward direction of the bearing cage, the cantilever portions being arranged along a circumference of the annular backbone portion, defining a plurality of pockets bearing, wherein the backbone portion has a radial thickness which is larger than that of the plurality of cantilever portions. Each of the plurality of cantilever portions comprises two prong portions and a connection portion between the two prong portions. The bearing cage further comprises one or more of: a plurality of recesses formed in a radially outer side of the cantilever portions, and a plurality of grooves formed in the radially inner side of the bearing cage.Type: ApplicationFiled: September 13, 2021Publication date: March 24, 2022Inventors: Hongyuan An, Riccardo Restivo
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Patent number: 10539190Abstract: A rolling bearing with sealing device provided on each side of the rolling bearing in order to prevent the entry of contaminants inside the rolling bearing, the rolling bearing having a non-rotating outer ring and a rotating inner ring and with a plurality of rolling bodies placed between them. The sealing device provided with first and second shields arranged axially in series between them across a cavity defined by the two rings, the first shields integral with the outer ring and the second shields integral with the inner ring and defining with the first shields an annular gap, which has a substantially constant axial thickness and is radially bounded by a first sealing labyrinth arranged in the region of the outer ring and a second sealing labyrinth arranged in the region of the inner ring.Type: GrantFiled: November 28, 2017Date of Patent: January 21, 2020Assignee: AKTIEBOLAGET SKFInventor: Riccardo Restivo
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Publication number: 20180335088Abstract: A rolling bearing with sealing device provided on each side of the rolling bearing in order to prevent the entry of contaminants inside the rolling bearing, the rolling bearing having a non-rotating outer ring and a rotating inner ring and with a plurality of rolling bodies placed between them. The sealing device provided with first and second shields arranged axially in series between them across a cavity defined by the two rings, the first shields integral with the outer ring and the second shields integral with the inner ring and defining with the first shields an annular gap, which has a substantially constant axial thickness and is radially bounded by a first sealing labyrinth arranged in the region of the outer ring and a second sealing labyrinth arranged in the region of the inner ring.Type: ApplicationFiled: November 28, 2017Publication date: November 22, 2018Inventor: Riccardo Restivo
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Patent number: 9546682Abstract: A cage of a rolling bearing, the cage comprising: an annular heel centered on a central axis and having a constant radial thickness measured radially to the central axis; an axial portion extending from the heel substantially parallel to the central axis; and pockets delimited by the heel and the axial portion for receiving rolling elements. The axial portion has an axial length being greater than half the inner diameter of the pockets and an outside diameter being lesser than the outside diameter of the heel and which comprises between a first value equal to the pitch circle diameter of the cage minus half the radial thickness of the heel and a second value equal to the pitch circle diameter of the cage plus half the radial thickness of the heel. The pockets are spaced around the central axis having angular spacings being at least partly different from one another.Type: GrantFiled: December 9, 2014Date of Patent: January 17, 2017Assignee: AKTIEBOLAGET SKFInventors: Lawrence E Cislo, Riccardo Restivo, Thierry Poulle
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Patent number: 9476458Abstract: A pair of radial flanged bearings with rolling bodies, each of the bearings comprising a radially outer ring, radially confined by an external surface, a radially inner ring, co-axially and internally assembled, with respect to the outer ring, a row of rolling bodies, which is interposed between the outer ring and the inner ring, to allow the relative rotation of the two rings and a flange steadily fixed to the outer rings. The correspondent outer rings are provided with an assembly groove, which is obtained along said external surface. The flange is not in one piece with the outer rings, but is detachable from the outer rings in correspondence of the assembly grooves.Type: GrantFiled: June 18, 2015Date of Patent: October 25, 2016Assignee: AKTIEBOLAGE SKFInventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
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Patent number: 9422983Abstract: A rolling bearing is provided that includes an outer ring, an inner ring, and a plurality of rollers disposed between the outer and inner rings to engage a radially outer lateral surface of the inner ring and a radially inner lateral surface of the outer ring and being laterally held, in a direction parallel to a relative rotation axis (A) between the rings, by respective axial shoulders. The axial shoulders each consist of an annular element made of synthetic plastic material as an independent element from the rings that engages in a snapping manner either the inner ring or the outer ring; the inner and outer rings being provided, at their respective radially outer and inner lateral surfaces and at opposite axial ends thereof, with snapping locking seats for the annular elements made of synthetic plastic material each including a continuous annular groove.Type: GrantFiled: April 2, 2015Date of Patent: August 23, 2016Assignee: AKTIEBOLAGET SKFInventors: Roberto Mola, Riccardo Restivo, Piero Santangelo, Gianpiero Scaltriti
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Patent number: 9388858Abstract: Flanged radial bearing with rolling elements provided with an outer ring radially defined by an outer surface; an inner ring mounted inside and coaxially with the outer ring; a row of rolling elements between the two rings to allow the two rings to rotate relative to one another; and a flange secured to the outer ring and located in correspondence of an assembly groove made around said outer surface; the flange being assembled, in such a way that it cannot be disengaged, to the outer ring.Type: GrantFiled: September 25, 2014Date of Patent: July 12, 2016Assignee: AKTIEBOLAGET SKFInventors: Roberto Mola, Matteo Pastorino, Riccardo Restivo, Gianpiero Scaltriti
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Publication number: 20160160921Abstract: A cage of a rolling bearing, the cage comprising: an annular heel centered on a central axis and having a constant radial thickness measured radially to the central axis; an axial portion extending from the heel substantially parallel to the central axis; and pockets delimited by the heel and the axial portion for receiving rolling elements. The axial portion has an axial length being greater than half the inner diameter of the pockets and an outside diameter being lesser than the outside diameter of the heel and which comprises between a first value equal to the pitch circle diameter of the cage minus half the radial thickness of the heel and a second value equal to the pitch circle diameter of the cage plus half the radial thickness of the heel. The pockets are spaced around the central axis having angular spacings being at least partly different from one another.Type: ApplicationFiled: December 9, 2014Publication date: June 9, 2016Applicant: AKTIEBOLAGET SKFInventors: Lawrence E. CISCO, Riccardo RESTIVO, Thierry POULLE
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Patent number: 9291201Abstract: A tubular bushing that is co-moldable with tubs of washing machines, the tubular bushing is engaged by a drive shaft of the washing machine, that extends along a central axis (A) and is provided with two rolling bearings, arranged at a given distance from each other along the axis (A) to rotatably support the drive shaft of the washing machine with respect to the tub. The tubular bushing further provides a containing sleeve, made of plastic material and co-molded around the two bearings; the sleeve defining an axial communication duct between two sides of the tubular bushing, the duct being closed, at least during co-molding, by a disposable cap, engaged in an annular edge of the containing sleeve.Type: GrantFiled: September 15, 2014Date of Patent: March 22, 2016Assignee: AKTIEBOLAGET SKFInventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
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Patent number: 9261142Abstract: A flanged radial bearing having rolling bodies, the bearing being provided with an outer ring radially bounded by an outer surface; an inner ring mounted coaxially inside the outer ring; a row of rolling bodies arranged between the two rings that allows relative rotation between the two rings; and a flange joined to the outer ring and mounted along an assembly groove formed through the outer surface; the flange not being a flange integral with the outer ring, but being releasably assembled on the outer ring.Type: GrantFiled: September 8, 2014Date of Patent: February 16, 2016Assignee: AKTIEBOLAGET SKFInventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
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Patent number: 9261143Abstract: A tubular bushing co-moldable with tubs of washing machines is provided. The tubular bushing is suitable to be engaged by a drive shaft of the washing machine extending along a central axis (A) and being provided with two rolling bearings (20), arranged at a given distance from each other along the axis (A) to allow rotation of the drive shaft with respect to the tub, and a containing sleeve, made of plastic and by means of co-molding around the two bearings; a current dispersion means being incorporated in the containing sleeve and suitable to be electrically connected both to the drive shaft and to earth so as to prevent an accumulation of static electricity in the washing machine and prevent electrostatic discharges.Type: GrantFiled: September 15, 2014Date of Patent: February 16, 2016Assignee: AKTIEBOLAGET SKFInventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti