Stephen P Radzevich

8133146, Mar 13, 2012

Apr 14, 2009

12/423113

Stephen P. Radzevich - Sterling Heights MI, US
Paul N. Herrmann - Clinton Township MI, US
Steven A. Rudko - Eastpointe MI, US

Eaton Corporation - Cleveland OH

F16H 48/10

475248, 475226, 475251, 475252, 74425, 74458

A gear train is provided that includes at least one side gear comprising a helical face gear and a plurality of helical pinions in meshing engagement with the helical face gear. The gear train may further include an absorber configured to provide an axial force on at least one of the plurality of helical pinions. A differential may also be provided including a differential case and a gear train disposed in the differential case. The gear train includes at least one side gear comprising a helical face gear and a plurality of helical pinions in meshing engagement with the helical face gear. The gear train in the differential may further include a means for providing an axial force on at least one of the plurality of helical pinions.

8146458, Apr 3, 2012

Jul 27, 2009

12/509600

Stephen P. Radzevich - Sterling Heights MI, US

Eaton Corporation - Southfield MI

F16H 48/12

74650

A locking differential for an automotive vehicle including a housing and a differential mechanism supported in the housing. The differential mechanism includes a pair of clutch members disposed in spaced axial relationship with respect to each other wherein each clutch member includes a groove disposed in an opposed inwardly directing face that is adapted to receive a cross pin. Each of the grooves includes a working surface extending laterally relative to each other. Each of the working surfaces defines a screw involute surface such that the cross pin contacts the working surface along a line extending in the direction of the cross pin in the event of differential rotation of an axle half shaft relative to the housing. Alternatively, each of the working surfaces defines a slightly convex surface in one plane such that the cross pin contacts the working surface at a point defined thereon. In another embodiment, the working surface defines a slightly convex surface in two planes such that the cross pin contacts the working surface at a point defined thereon.

8231493, Jul 31, 2012

Jul 27, 2009

12/509624

Stephen P. Radzevich - Sterling Heights MI, US

Eaton Corporation - Southfield MI

F16H 48/20

475231, 74650

A locking differential for an automotive vehicle including a housing and a differential mechanism supported in the housing. The differential mechanism includes a pair of clutch members where each of the clutch members presents an inwardly directed face. Each face includes a groove disposed in spacing relationship with respect to the other. A cross pin is received in the grooves and is operatively connected for rotation with the housing. The clutch members are axially moveable within the housing so that they may engage respective clutch members coupled to a pair of axle half shafts. Each of the grooves in the clutch members defines a first predetermined radius of curvature. The cross pin defines a second radius of curvature wherein the first radius of curvature of the groove is greater than the second radius of curvature of the cross pin such that contact between the cross pin and the groove defines a line extending along the axis of the cross pin.

8353800, Jan 15, 2013

Apr 15, 2010

12/760988

Sandeep Kumar - Maharashtra, IN
Steven J. Cochren - Commerce MI, US
Stephen P. Radzevich - Sterling Heights MI, US
Paul N. Herrmann - Clinton Township MI, US
Steven A. Rudko - Eastpointe MI, US

Eaton Corporation - Cleveland

F16H 48/06

475226

A differential includes a differential case; a side gear comprising a helical face gear; a helical pinion configured for meshing engagement with the side gear; and a pinion housing configured to support the helical pinion. The pinion housing includes a first face; a second face opposing the first face; a first projection located on the first face; and a second projection located on the second face. In some embodiments, the differential further comprises an actuator configured for engagement with the pinion housing and a plurality of friction plates disposed between the actuator and the differential case. The pinion housing also includes an aperture or hole extending radially inwardly from an outer radial surface of the generally annular ring; and a channel extending from the first face to the second face, wherein the channel is substantially radially aligned with the aperture or hole.

8460148, Jun 11, 2013

Jun 11, 2010

12/813922

Stephen P. Radzevich - Sterling Heights MI, US
Paul N. Herrmann - Clinton Township MI, US

Eaton Corporation - Cleveland OH

F16H 48/06

475230, 475220, 475248, 475252

A differential includes a side gear comprising a helical face gear; a helical pinion configured for meshing engagement with the side gear; a pinion housing configured to house the helical pinion; and a first support member configured to support the helical pinion. The side gear rotates around a differential axis. The helical pinion has a first end and a second end opposing the first end. The pinion housing comprises a generally annular ring and includes an outer radial surface; an inner radial surface; and an aperture extending radially inwardly from the outer radial surface. The first support member is disposed radially inwardly relative to the inner radial surface of the pinion housing. In some embodiments, the differential further includes a second support member configured to support the helical pinion. The second support member is disposed radially outwardly relative to the outer radial surface of the pinion housing.

20100234163, Sep 16, 2010

Mar 12, 2009

12/403141

Stephen P. Radzevich - Sterling Heights MI, US

Eaton Corporation - Cleveland OH

F16H 48/20
F16H 55/00

475231, 74462

A fluctuating gear ratio limited slip differential assembly is provided that includes a differential case and a pair of side gears disposed within the differential case. Each of the side gears may have a tooth with a first tooth flank. The differential assembly may further include a pinion shaft disposed within the differential case and a plurality of pinions supported by the pinion shaft. The pinions may be configured for engagement with the pair of side gears and each of the pinions may have a tooth with a second tooth flank. The first and second tooth flanks are configured to cause movement of the plane of action defining all contact points between the first tooth flank of the side gears and the second tooth flank of the pinions in a predetermined and/or controlled manner.

20100317480, Dec 16, 2010

Jun 14, 2010

12/814905

STEVEN J. COCHREN - Commerce MI, US
Stephen P. Radzevich - Sterling Heights MI, US
Paul N. Herrmann - Clinton Township MI, US
Steven A. Rudko - Eastpointe MI, US

Eaton Corporation - Cleveland OH

F16H 48/06
F16H 55/17

475220, 74458

A gear set is provided including a side gear comprising a helical face gear with at least one helical tooth and a helical pinion. The helical pinion may have at least one helical tooth and may have an apex angle that is less than about 20. The helical pinion may be configured for meshing engagement with the side gear. A differential may also be provided. The differential comprises a differential case and a gear set. The differential may further include a torque ring configured to support the helical pinion.

20100317483, Dec 16, 2010

Jun 10, 2009

12/481918

Stephen P. Radzevich - Sterling Heights MI, US

Eaton Corporation - Cleveland OH

F16H 55/08
F16H 48/06

475230, 74462

A gear set includes a first gear having at least one tooth with a first tooth profile. The first tooth profile may comprise a first segment comprising a first plurality of sections. At least one of the first plurality of sections may have a first profile angle, and at least one of the first plurality of sections may have a second profile angle. The first profile angle and the second profile angle may be different. A differential is also provided that includes a differential case, a pinion shaft disposed inside the differential case, and a pinion gear.