Patents Assigned to Timken US Corporation
  • Patent number: 8816677
    Abstract: A sensing apparatus includes first and second magnet assemblies. The first magnet assembly includes first and second magnets that have respective first and second opposite magnetic fields. The first magnet has a plurality of dimensions including an inner circumferential dimension, an outer circumferential dimension, an inner axial dimension, an outer axial dimension, and a radial dimension, and the second magnet has a corresponding plurality of dimensions. The inner circumferential dimension or outer circumferential dimension of the first magnet is relatively smaller than the corresponding dimension of the second magnet. A second magnet assembly is positioned at a distance from the first magnet assembly and includes a third magnet having a third magnetic field opposite to the first magnetic field. The first magnet assembly is a high-resolution track, and the second magnet assembly is a low-resolution track.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 26, 2014
    Assignee: Timken US Corporation
    Inventor: Mark E. LaCroix
  • Patent number: 8058868
    Abstract: A system for determining an absolute position of a motor. The system includes first and second multi-polar magnetic rings, first and second processing units, and at least one external sensor. The first multi-polar magnetic ring is concentrically positioned around the motor, and has a plurality of pole pairs. The second multi-polar magnetic ring is concentrically positioned around the first multi-polar magnetic ring, and has at least one pole pair. The first processing unit is positioned near the first multi-polar magnetic ring to determine an angular position over one of the pole pairs of the first multi-polar magnetic ring. The sensor is positioned external to the processing unit and over the second multi-polar magnetic ring to indicate a state of the pole pair of the second multi-polar magnetic ring. The second processing unit generates an absolute position of the motor based on the angular position and the state.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: November 15, 2011
    Assignee: Timken US Corporation
    Inventors: Alfred John Santos, Mark E. LaCroix, Wayne V. Denny
  • Patent number: 7999537
    Abstract: A sensing apparatus that includes first and second magnet assemblies. The first magnet assembly includes first and second magnets that have respective first and second opposite magnetic fields, and respective first and second dimensions. The first dimension is relatively smaller than the second dimension. The second magnet assembly is positioned at a distance from the first magnet assembly. The second magnet assembly includes a third magnet that has a third magnetic field which is opposite to the first magnetic field.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: August 16, 2011
    Assignee: Timken US Corporation
    Inventor: Mark E. LaCroix
  • Patent number: 7999533
    Abstract: A sensing assembly. The sensing assembly is spaced apart from a magnet that has a magnet length, and includes a compensation module and a string of magnetic sensors that has a string length. The magnetic sensors are grouped into a plurality of magnetic sensor groups. Each of the magnetic sensors generates a respective intermediate signal based on the magnet. The compensation module assigns a plurality of respective gains to the respective magnetic sensor groups based on a difference between the magnet length and the string length, and applies the respective gains to the respective intermediate signals of the respective magnetic sensor groups to generate respective adjusted signals.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: August 16, 2011
    Assignee: Timken US Corporation
    Inventor: Mark E. LaCroix
  • Patent number: 7600138
    Abstract: A method of managing power consumed by a circuit that can output a signal. The method includes determining a time duration after which the signal is valid, and determining an update rate of the signal. The method also includes supplying power to the circuit based on the time duration and the update rate, and latching the signal at the update rate.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: October 6, 2009
    Assignee: Timken US Corporation
    Inventor: Alfred John Santos
  • Patent number: 7579827
    Abstract: A device for sensing the input shaft speed of an automotive automatic transmission that is driven by the engine through the fluid coupling of a torque converter. The speed sensor device includes circumferentially spaced markings about the transmission input shaft and a speed sensor that is placed at close proximity to the circumferentially spaced markings through a hole in the torque converter stator shaft. An electronic control unit (ECU) analyzes the sensor output signal and in the case of an active speed sensor it also functions as its power source. During vehicle operation, the transmission input shaft rotates the target wheel in front of the speed sensor causing modulation of its output signal. The electronic control unit analyzes the signal modulation and calculates the input shaft rotational speed. A variety of sensor/target-wheel options and sensor mounting techniques could be used depending on the application constraints.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: August 25, 2009
    Assignee: Timken US Corporation
    Inventors: James J. Burns, Wayne V. Denny, Mark A. Joki, Mark E. LaCroix, Brian Thomas Odegard, Alfred John Santos, Orestes J. Varonis
  • Patent number: 7546822
    Abstract: A two-step finger follower rocker arm assembly comprising a follower body having a first end for engaging the engine and a second end for engaging a valve stem of the gas valve. The follower body has a passage formed in the body between the first and second ends and has a first bore traversing the passage. A central follower is positioned in the passage and is configured for engagement with the central lobe. A first lateral follower is pivotally supported on a shaft extending through the first bore and is configured to engage the at least one lateral cam lobe. A latching mechanism is positioned on the follower body for selectively latching the lateral follower to the body.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: June 16, 2009
    Assignee: Timken US Corporation
    Inventors: Richard F. Murphy, Matthew J. Deierlein
  • Patent number: 7494440
    Abstract: A steering wheel mounting assembly comprising a stationary support carrier, first and second drive rings, and a drive roller assembly. The stationary support carrier defines first and second ring receiving areas. The first drive ring has a first cylindrical raceway, is supported in the first ring receiving area, and is adapted for connection to a steering wheel. The second drive ring has a second cylindrical raceway, is positioned in the second ring receiving area, and is adapted for connection to a steering shaft. The drive roller assembly is supported within the first and second cylindrical raceways and comprises first and second roller planets, a sun roller supported in frictional engagement with the first and second roller planets, a first loading planet frictionally positioned between the sun roller and the first cylindrical raceway, and a second loading planet frictionally positioned between the sun roller and the second cylindrical raceway.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: February 24, 2009
    Assignee: Timken US Corporation
    Inventors: Xiaolan Ai, David A. Degrange
  • Patent number: 7448980
    Abstract: A planetary gear assembly includes a carrier, a planet shaft, a planet gear, and a plurality of rollers. The planet shaft is coupled to the carrier. The planet gear is rotatable about the planet shaft and the plurality of rollers are between the planet gear and the planet shaft to facilitate rotation of the planet gear about the planet shaft. The planetary gear assembly further includes a sleeve that surrounds the planet shaft such that the plurality of rollers roll on the sleeve.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: November 11, 2008
    Assignee: Timken US Corporation
    Inventors: Ronald J. Abarquez, Richard F. Murphy
  • Patent number: 7364364
    Abstract: A bearing assembly including an inner ring, an outer ring, a ball bearing assembly, a needle bearing assembly, and seals. The inner ring defines a ball raceway and a needle bearing raceway. The outer ring defines a ball raceway and a needle bearing raceway. A plurality of circumferentially arranged balls are received by said inner and outer ring ball raceways and a plurality of circumferentially arranged needle rollers are received by said inner and outer needle bearing raceways. The seals seal each end of the assembly.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: April 29, 2008
    Assignee: Timken US Corporation
    Inventors: Jennifer A. Smith, Donald H. Hastie, Jr.
  • Publication number: 20080074100
    Abstract: A device for sensing the input shaft speed of an automotive automatic transmission that is driven by the engine through the fluid coupling of a torque converter. The speed sensor device includes circumferentially spaced markings about the transmission input shaft and a speed sensor that is placed at close proximity to the circumferentially spaced markings through a hole in the torque converter stator shaft. An electronic control unit (ECU) analyzes the sensor output signal and in the case of an active speed sensor it also functions as its power source. During vehicle operation, the transmission input shaft rotates the target wheel in front of the speed sensor causing modulation of its output signal. The electronic control unit analyzes the signal modulation and calculates the input shaft rotational speed. A variety of sensor/target-wheel options and sensor mounting techniques could be used depending on the application constraints.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: Timken US Corporation
    Inventors: James Burns, Wayne Denny, Mark Joki, Mark LaCroix, Brian Odegard, Alfred Santos, Orestes Varonis
  • Patent number: 7293539
    Abstract: A rocker arm assembly for mounting about a stud means. The rocker arm assembly generally comprises a rocker arm and a support member. The rocker arm has opposed first and second lateral ends and a central bore between the ends. The support member is positioned within the rocker arm central bore and mounted on the stud means. The rocker arm is configured to pivot about the support member. The support member has opposed lateral sides with a seal member extending along each lateral side. The seal members provide a seal between each lateral side of the support member and an internal surface of the central bore thereby providing more efficient oil lubrication to the ends of the rocker arm.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: November 13, 2007
    Assignee: Timken US Corporation
    Inventors: John S. Hayward, David Nguyen, Jerzy Baginski
  • Patent number: 7285949
    Abstract: A device for sensing the input shaft speed of an automotive automatic transmission that is driven by the engine through the fluid coupling of a torque converter. The speed sensor device includes circumferentially spaced markings about the transmission input shaft and a speed sensor that is placed at close proximity to the circumferentially spaced markings through a hole in the torque converter stator shaft. An electronic control unit (ECU) analyzes the sensor output signal and in the case of an active speed sensor it also functions as its power source. During vehicle operation, the transmission input shaft rotates the target wheel in front of the speed sensor causing modulation of its output signal. The electronic control unit analyzes the signal modulation and calculates the input shaft rotational speed. A variety of sensor/target-wheel options and sensor mounting techniques could be used depending on the application constraints.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: October 23, 2007
    Assignee: Timken US Corporation
    Inventors: James J. Burns, Wayne V. Denny, Mark A. Joki, Mark E. LaCroix, Brian Thomas Odegard, Alfred John Santos, Orestes J. Varonis
  • Publication number: 20070182404
    Abstract: A sensor assembly for determining rotational angular displacement of a first moving component in a machine relative to a second component in the machine includes a base, a magnet housing, and a flexible member. The base is configured to be rigidly secured to the first moving component for movement therewith. The base defines a first axis of rotation. The magnet housing supports a sensor magnet and is rotatably received in the second component. The magnet housing defines a second axis of rotation. The flexible member has a first end rigidly secured to the magnet housing coaxially with the first axis of rotation. A second end of the flexible member is rigidly secured to the magnet housing coaxially with the second axis of rotation. A flexible body portion of the flexible member is capable of accommodating misalignment between the first and second axes of rotation.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 9, 2007
    Applicant: Timken US Corporation
    Inventors: John Hayward, Thomas Bober, Jerzy Baginski, Walter Waskiewicz, Daniel McLarty
  • Patent number: 7250756
    Abstract: A sensor assembly for determining rotational angular displacement of a first moving component in a machine relative to a second component in the machine includes a base, a magnet housing, and a flexible member. The base is configured to be rigidly secured to the first moving component for movement therewith. The base defines a first axis of rotation. The magnet housing supports a sensor magnet and is rotatably received in the second component. The magnet housing defines a second axis of rotation. The flexible member has a first end rigidly secured to the magnet housing coaxially with the first axis of rotation. A second end of the flexible member is rigidly secured to the magnet housing coaxially with the second axis of rotation. A flexible body portion of the flexible member is capable of accommodating misalignment between the first and second axes of rotation.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: July 31, 2007
    Assignee: Timken US Corporation
    Inventors: John S. Hayward, Thomas R. Bober, Jerzy Baginski, Walter P. Waskiewicz, Daniel R. McLarty
  • Patent number: 7225692
    Abstract: This invention concerns a system for the attachment of an information sensor opposite to, and at an air gap's distance from, the coder of a bearing, with the system including a cap to be associated with a ring that at least partly covers the coder, where, in combination, the cap includes at least one device for attachment of the sensor to the internal surface of the cap and one device for electrical connection of the sensor. The invention also concerns a sensor designed to be attached to such a system, an ensemble formed by the attachment system and the associated sensor, as well as a bearing equipped with such an ensemble.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 5, 2007
    Assignee: Timken US Corporation
    Inventors: Christophe Ulrici, Cathy Noury, Fabien Corlet
  • Publication number: 20070087846
    Abstract: A joint operable to couple a first shaft to a second shaft includes a first yoke coupled to the first shalt and defining a first aperture. A second yoke is coupled to the second shaft and defines a second aperture. A first bearing is coupled to the first yoke and is at least partially disposed within the first aperture. A second bearing is coupled to the second yoke and is at least partially disposed within the second aperture. A cross member has a first boss coupled to the first bearing and a second boss coupled to the second bearing. A first resilient member is positioned between the first bearing and the first boss to interconnect the first boss and the first yoke, and a second resilient member is positioned between the second bearing and the second boss to interconnect the second boss and the second yoke.
    Type: Application
    Filed: October 5, 2006
    Publication date: April 19, 2007
    Applicant: Timken US Corporation
    Inventors: Steven Nelson, Scott Filion
  • Patent number: 7174827
    Abstract: A compressor assembly comprising a housing having a shaft bore therein, a main shaft positioned for rotation within the shaft bore, at least one roller thrust bearing and a thurst surface bearing clip. The thrust surface bearing clip comprises a first position configured for fixed engagement with the housing and a second portion extending from the first portion and configured for supporting a thurst surface in a position spaced from the rotating shaft, the thrust surface providing a bearing surface for the roller thrust bearing.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: February 13, 2007
    Assignee: Timken US Corporation
    Inventors: Arnold E. Fredericksen, Kenneth B. Whitecross, Gregory C. Piotrowski
  • Publication number: 20070028427
    Abstract: A continuous loop clamp includes an endless loop shaped body providing a central opening in which a device for clamping is positionable. The body includes a continuous interior surface defining the opening and an exterior surface. The entire continuous interior surface contacts the device when the clamp is applied. The clamp also includes an aperture defined in the body from the interior surface to the exterior surface. The device is inserted into the opening along an axis and the body can be deformed at the aperture to decrease the size of the opening. No portion of the body substantially projects radially outwardly of the exterior surface, either before the body is deformed or after the body is deformed.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 8, 2007
    Applicant: Timken US Corporation
    Inventors: Giovanni Albini, Kevin Audibert
  • Patent number: RE40313
    Abstract: A thrust bearing assembly comprising first and second thrust race members (52, 60) and a roller assembly (22) positioned therebetween. The first thrust race member (52) includes a radial race surface (53), a flange extending from the race surface and a radial lip (54) extending radially beyond the flange (56). The second thrust race member (60) includes a radial race surface (61) and a piloting flange extending from the race surface and includes a retaining lip (64). The second thrust member (60) is positioned within the first thrust member (52) radial lip (54) and retained thereby and there is a clearance between the retaining lip (54) and the first thrust race member flange (56) external surface.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: May 13, 2008
    Assignee: Timken US Corporation
    Inventors: Edward C. Axler, Edward P. Butler III