Patents by Inventor Steven J. Cochren
Steven J. Cochren 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: 9933060Abstract: A locking differential assembly includes a differential case defining an axis of rotation and a gear chamber. A first side gear is at a first end of the differential case. A second side gear is at a second end of the differential case opposite the first end for selectable rotation relative to the differential case. A solenoid is at the first end. The solenoid is directly wound onto a stator.Type: GrantFiled: March 21, 2017Date of Patent: April 3, 2018Assignee: Eaton CorporationInventors: Steven J. Cochren, Daniel Stanley Frazier, Chad Robert Hillman, John Kimmel Vandervoort
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Publication number: 20170191556Abstract: A locking differential assembly includes a differential case defining an axis of rotation and a gear chamber. A first side gear is at a first end of the differential case. A second side gear is at a second end of the differential case opposite the first end for selectable rotation relative to the differential case. A solenoid is at the first end. The solenoid is directly wound onto a stator.Type: ApplicationFiled: March 21, 2017Publication date: July 6, 2017Inventors: Steven J. Cochren, Daniel Stanley Frazier, Chad Robert Hillman, John Kimmel Vandervoort
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Patent number: 9664271Abstract: A differential includes a differential case; a side gear; a pinion configured for meshing engagement with the side gear; and a pinion housing configured to support the 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. 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. In embodiments, the pinion housing includes one or more transfer formations configured to transfer torque from the differential case, and the pinion housing is configured to permit movement in an axial direction between a pair of side gears.Type: GrantFiled: January 9, 2013Date of Patent: May 30, 2017Assignee: Eaton CorporationInventors: Paul N. Herrmann, Steven J. Cochren, Sandeep Kumar, Steven A. Rudko, Stephen P. Radzevich, Matthew G. Fox, Daniel Philip Fisher
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Patent number: 9625026Abstract: A locking differential assembly includes a differential case defining an axis of rotation and a gear chamber. A first side gear is at a first end of the differential case. A second side gear is at a second end of the differential case opposite the first end for selectable rotation relative to the differential case. At least two pinion gears are rotatably supported in the gear chamber in meshing engagement with the first side gear and the second side gear. A solenoid is at the first end. A plunger is selectably magnetically actuatable by the solenoid. A lock ring is selectably engagable with the second side gear to selectably prevent the side gear from rotating relative to the differential case. At least two relay rods are each connected to the plunger and to the lock ring to cause the lock ring to remain a fixed predetermined distance from the plunger.Type: GrantFiled: December 9, 2014Date of Patent: April 18, 2017Assignee: Eaton CorporationInventors: Steven J. Cochren, Daniel Stanley Frazier, Chad Robert Hillman, John Kimmel Vandervoort
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Publication number: 20160319925Abstract: A locking differential assembly includes a differential case defining an axis of rotation and a gear chamber. A first side gear is at a first end of the differential case. A second side gear is at a second end of the differential case opposite the first end for selectable rotation relative to the differential case. At least two pinion gears are rotatably supported in the gear chamber in meshing engagement with the first side gear and the second side gear. A solenoid is at the first end. A plunger is selectably magnetically actuatable by the solenoid. A lock ring is selectably engagable with the second side gear to selectably prevent the side gear from rotating relative to the differential case. At least two relay rods are each connected to the plunger and to the lock ring to cause the lock ring to remain a fixed predetermined distance from the plunger.Type: ApplicationFiled: December 9, 2014Publication date: November 3, 2016Inventors: Steven J. Cochren, Daniel Stanley Frazier, Chad Robert Hillman, John Kimmel Vandervoort
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Patent number: 9453569Abstract: A locking differential for a vehicle includes a rotatable housing and a differential mechanism supported in the housing. The differential mechanism includes a pair of clutch members wherein 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 each groove and is operatively connected for rotation with the housing. At least one biasing member is disposed between the clutch members and at least one wear pad is disposed at an end of the at least one biasing member to preload the at least one biasing member and to allow the at least one biasing member to be acted upon by only a single one of the clutch members.Type: GrantFiled: December 18, 2014Date of Patent: September 27, 2016Assignee: Eaton CorporationInventors: Steven J. Cochren, Christopher W. Creager
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Publication number: 20150204431Abstract: A locking differential assembly includes a differential case defining an axis of rotation and a gear chamber. A first side gear is at a first end of the differential case. A second side gear is at a second end of the differential case opposite the first end for selectable rotation relative to the differential case. At least two pinion gears are rotatably supported in the gear chamber in meshing engagement with the first side gear and the second side gear. A solenoid is at the first end. A plunger is selectably magnetically actuatable by the solenoid. A lock ring is selectably engagable with the second side gear to selectably prevent the side gear from rotating relative to the differential case. At least two relay rods are each connected to the plunger and to the lock ring to cause the lock ring to remain a fixed predetermined distance from the plunger.Type: ApplicationFiled: December 9, 2014Publication date: July 23, 2015Inventors: Steven J. Cochren, Daniel Stanley Frazier, Chad Robert Hillman, John Kimmel Vandervoort
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Publication number: 20150105209Abstract: A locking differential for a vehicle includes a rotatable housing and a differential mechanism supported in the housing. The differential mechanism includes a pair of clutch members wherein 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 each groove and is operatively connected for rotation with the housing. At least one biasing member is disposed between the clutch members and at least one wear pad is disposed at an end of the at least one biasing member to preload the at least one biasing member and to allow the at least one biasing member to be acted upon by only a single one of the clutch members.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Steven J. COCHREN, Christopher W. CREAGER
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Patent number: 8353800Abstract: 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.Type: GrantFiled: April 15, 2010Date of Patent: January 15, 2013Assignee: Eaton CorporationInventors: Sandeep Kumar, Steven J. Cochren, Stephen P. Radzevich, Paul N. Herrmann, Steven A. Rudko
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Patent number: 7874954Abstract: A locking differential includes a pair of clutch members that are biased together by a resilient disc and friction pack assembly toward a cross pin that extends diametrically across the central chamber of a cylindrical housing driven by the drive shaft of a vehicle, thereby to drive a pair of side gears and the output shafts splined thereto. The cross-pin extends within operating cam grooves contained in the adjacent faces of the clutch members, such that when the rotational velocity of one output shaft exceeds that of the other by a predetermined amount, the friction pack assembly of the faster shaft is operated to a non-compressed condition, thereby to disengage the over-running output shaft from the drive shaft. The resilient disc devices may be annular wave springs, or resilient disc springs.Type: GrantFiled: February 14, 2007Date of Patent: January 25, 2011Assignee: Eaton CorporationInventors: Walter L. Dissett, Steven J. Cochren
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Publication number: 20100317482Abstract: 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.Type: ApplicationFiled: April 15, 2010Publication date: December 16, 2010Applicant: Eaton CorporationInventors: Sandeep Kumar, Steven J. Cochren, Stephen P. Radzevich, Paul N. Herrmann, Steven A. Rudko
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Publication number: 20100317480Abstract: 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.Type: ApplicationFiled: June 14, 2010Publication date: December 16, 2010Applicant: Eaton CorporationInventors: STEVEN J. COCHREN, Stephen P. Radzevich, Paul N. Herrmann, Steven A. Rudko
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Publication number: 20080190240Abstract: A locking differential includes a pair of clutch members that are biased together by a resilient disc and friction pack assembly toward a cross pin that extends diametrically across the central chamber of a cylindrical housing driven by the drive shaft of a vehicle, thereby to drive a pair of side gears and the output shafts splined thereto. The cross-pin extends within operating cam grooves contained in the adjacent faces of the clutch members, such that when the rotational velocity of one output shaft exceeds that of the other by a predetermined amount, the friction pack assembly of the faster shaft is operated to a non-compressed condition, thereby to disengage the over-running output shaft from the drive shaft. The resilient disc devices may be annular wave springs, or resilient disc springs.Type: ApplicationFiled: February 14, 2007Publication date: August 14, 2008Inventors: Walter L. Dissett, Steven J. Cochren
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Patent number: D740866Type: GrantFiled: January 25, 2013Date of Patent: October 13, 2015Assignee: Eaton CorporationInventors: Paul N. Herrmann, Steven J. Cochren, Sandeep Kumar, Steven A. Rudko, Stephen P. Radzevich, Matthew G. Fox, Daniel Philip Fisher
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Patent number: D807419Type: GrantFiled: September 17, 2015Date of Patent: January 9, 2018Assignee: Eaton CorporationInventors: Paul N. Herrmann, Steven J. Cochren, Sandeep Kumar, Steven A. Rudko, Stephen P. Radzevich, Matthew G. Fox, Daniel Philip Fisher