Patents by Inventor Kevin G. Dutil
Kevin G. Dutil 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: 10458525Abstract: A tensioning system including a base and an arm pivotally coupled to the base, the arm having an engagement surface and being configured to pivot relative to the base about a pivot axis. The system further includes a biasing mechanism operatively coupled to the arm to bias the arm relative to the base, and a seal assembly sealingly positioned between the arm and the base. The seal assembly is coaxial with the pivot axis and configured to accommodate relative axial movement between the base and the arm and relative radial movement between the base and the arm while still maintaining a seal therebetween.Type: GrantFiled: September 14, 2017Date of Patent: October 29, 2019Assignee: Dayco IP Holdings, LLCInventors: Kevin G. Dutil, Anthony E. Lannutti, James Kevin Lindstrom
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Publication number: 20180003271Abstract: A tensioning system including a base and an arm pivotally coupled to the base, the arm having an engagement surface and being configured to pivot relative to the base about a pivot axis. The system further includes a biasing mechanism operatively coupled to the arm to bias the arm relative to the base, and a seal assembly sealingly positioned between the arm and the base. The seal assembly is coaxial with the pivot axis and configured to accommodate relative axial movement between the base and the arm and relative radial movement between the base and the arm while still maintaining a seal therebetween.Type: ApplicationFiled: September 14, 2017Publication date: January 4, 2018Applicant: Dayco IP Holdings, LLCInventors: Kevin G. Dutil, Anthony E. Lannutti, James Kevin Lindstrom
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Patent number: 9777806Abstract: A tensioning system including a base and an arm pivotally coupled to the base, the arm having an engagement surface and being configured to pivot relative to the base about a pivot axis. The system further includes a biasing mechanism operatively coupled to the arm to bias the arm relative to the base, and a seal assembly sealingly positioned between the arm and the base. The seal assembly is coaxial with the pivot axis and configured to accommodate relative axial movement between the base and the arm and relative radial movement between the base and the arm while still maintaining a seal therebetween.Type: GrantFiled: March 28, 2012Date of Patent: October 3, 2017Assignee: Dayco IP Holdings, LLCInventors: Kevin G. Dutil, Anthony E. Lannutti, James Kevin Lindstrom
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Patent number: 9671007Abstract: Low-noise pulleys and methods of constructing low-noise pulleys are disclosed. In a first aspect, first and second pluralities of arms extending radially outward from the outer hub to the outer rim are angularly offset from each other about the axis of rotation to eliminate symmetry across the lateral midline of the pulley. In a second aspect, the radially outermost ends of a plurality of arms are arcuately spaced apart according to a pitch sequence describing a pseudo-random pattern of relative spacings so as to reduce or eliminate rotational symmetry of the pulley. In a third aspect, features of the first and second aspects are combined, and in one embodiment, first and second pluralities of arms are, respectively, approximately oppositely canted so as to vary the arcuate spacings of the laterally outermost ends of the arms.Type: GrantFiled: December 23, 2013Date of Patent: June 6, 2017Assignee: DAYCO IP HOLDINGS, LLCInventors: Kevin G. Dutil, James Kevin Lindstrom, Zachary Fittro, Jeffrey A. Swane, Donald B. Brown, Robert James Crist
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Patent number: 9121495Abstract: Pulley assemblies are disclosed that include a pulley body, a hub disposed within the bore of the pulley body, and a one-way clutch concentric about the hub. The one-way clutch has a plurality of cantilevered members that each include a friction surface and a cantilevered end and a biasing member in contact with one cantilevered member to bias the cantilevered members into continuous frictional engagement with the bore of the pulley body. Each of the cantilevered members is pivotable about its cantilevered end and is partially nested within an adjacent cantilevered member to form an annular body. This construction places the friction surface of each cantilevered member facing the bore of the pulley body. In operation, the pulley body rotates in a predominant direction which activates the plurality of cantilevered members to link the pulley body to the hub for simultaneous rotation.Type: GrantFiled: March 15, 2013Date of Patent: September 1, 2015Assignee: DAYCO IP HOLDINGS, LLCInventors: Anthony E. Lannutti, Kevin G. Dutil, James H. Miller
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Publication number: 20140274506Abstract: Pulley assemblies are disclosed that include a pulley body, a hub disposed within the bore of the pulley body, and a one-way clutch concentric about the hub. The one-way clutch has a plurality of cantilevered members that each include a friction surface and a cantilevered end and a biasing member in contact with one cantilevered member to bias the cantilevered members into continuous frictional engagement with the bore of the pulley body. Each of the cantilevered members is pivotable about its cantilevered end and is partially nested within an adjacent cantilevered member to form an annular body. This construction places the friction surface of each cantilevered member facing the bore of the pulley body. In operation, the pulley body rotates in a predominant direction which activates the plurality of cantilevered members to link the pulley body to the hub for simultaneous rotation.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Dayco IP Holdings, LLCInventors: Anthony E. Lannutti, Kevin G. Dutil, James H. Miller
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Publication number: 20140121051Abstract: Low-noise pulleys and methods of constructing low-noise pulleys are disclosed. In a first aspect, first and second pluralities of arms extending radially outward from the outer hub to the outer rim are angularly offset from each other about the axis of rotation to eliminate symmetry across the lateral midline of the pulley. In a second aspect, the radially outermost ends of a plurality of arms are arcuately spaced apart according to a pitch sequence describing a pseudo-random pattern of relative spacings so as to reduce or eliminate rotational symmetry of the pulley. In a third aspect, features of the first and second aspects are combined, and in one embodiment, first and second pluralities of arms are, respectively, approximately oppositely canted so as to vary the arcuate spacings of the laterally outermost ends of the arms.Type: ApplicationFiled: December 23, 2013Publication date: May 1, 2014Applicant: DAYCO IP HOLDINGS, LLCInventors: Kevin G. Dutil, James Kevin Lindstrom, Zachary Fittro, Jeffrey A. Swane, Donald B. Brown, Robert James Crist
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Publication number: 20140121050Abstract: Low-noise pulleys and methods of constructing low-noise pulleys are disclosed. In a first aspect, first and second pluralities of arms extending radially outward from the outer hub to the outer rim are angularly offset from each other about the axis of rotation to eliminate symmetry across the lateral midline of the pulley. In a second aspect, the radially outermost ends of a plurality of arms are arcuately spaced apart according to a pitch sequence describing a pseudo-random pattern of relative spacings so as to reduce or eliminate rotational symmetry of the pulley. In a third aspect, features of the first and second aspects are combined, and in one embodiment, first and second pluralities of arms are, respectively, approximately oppositely canted so as to vary the arcuate spacings of the laterally outermost ends of the arms.Type: ApplicationFiled: December 23, 2013Publication date: May 1, 2014Applicant: DAYCO IP HOLDINGS, LLCInventors: Kevin G. Dutil, James Kevin Lindstrom, Zachary Fittro, Jeffrey A. Swane, Donald B. Brown, Robert James Crist
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Patent number: 8617016Abstract: Low-noise pulleys and methods of constructing low-noise pulleys are disclosed. In a first aspect, first and second pluralities of arms extending radially outward from the outer hub to the outer rim are angularly offset from each other about the axis of rotation to eliminate symmetry across the lateral midline of the pulley. In a second aspect, the radially outermost ends of a plurality of arms are arcuately spaced apart according to a pitch sequence describing a pseudo-random pattern of relative spacings so as to reduce or eliminate rotational symmetry of the pulley. In a third aspect, features of the first and second aspects are combined, and in one embodiment, first and second pluralities of arms are, respectively, approximately oppositely canted so as to vary the arcuate spacings of the laterally outermost ends of the arms.Type: GrantFiled: June 2, 2010Date of Patent: December 31, 2013Assignee: Dayco IP Holdings, LLCInventors: Kevin G. Dutil, James Kevin Lindstrom, Zachary Fittro, Jeffrey A. Swane, Donald B. Brown, Robert James Crist
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Publication number: 20130260933Abstract: A tensioning system including a base and an arm pivotally coupled to the base, the arm having an engagement surface and being configured to pivot relative to the base about a pivot axis. The system further includes a biasing mechanism operatively coupled to the arm to bias the arm relative to the base, and a seal assembly sealingly positioned between the arm and the base. The seal assembly is coaxial with the pivot axis and configured to accommodate relative axial movement between the base and the arm and relative radial movement between the base and the arm while still maintaining a seal therebetween.Type: ApplicationFiled: March 28, 2012Publication date: October 3, 2013Applicant: DAYCO PRODUCTS, LLCInventors: Kevin G. Dutil, Anthony E. Lannutti, James Kevin Lindstrom
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Patent number: 8475308Abstract: A belt tensioner includes an arm, a spring case, and a helical spring having inwardly projecting first and second end portions. Another belt tensioner includes a spring, an arm, a spring case, and a pivot bushing surrounding the spring. An additional belt tensioner includes an idler pulley having a bearing with a mounting hole and includes an arm having a post. The post is positioned in the mounting hole, and an annular rim of the post is deformed radially outward and over the bearing. A method for manufacturing an arm and a spring case of a belt-tensioner includes obtaining a belt-tensioner-arm casting mold including a first section and a second section and obtaining a belt-tensioner-spring-case casting mold including a first segment and a second segment.Type: GrantFiled: September 11, 2008Date of Patent: July 2, 2013Assignee: Dayco IP Holdings, LLCInventors: Robert J. Crist, Kevin G. Dutil, Robert C. Joslyn, Anthony E. Lannutti, Earl E. McShane, Steve E. Scott, Stephen G. Webb
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Publication number: 20110300979Abstract: Low-noise pulleys and methods of constructing low-noise pulleys are disclosed. In a first aspect, first and second pluralities of arms extending radially outward from the outer hub to the outer rim are angularly offset from each other about the axis of rotation to eliminate symmetry across the lateral midline of the pulley. In a second aspect, the radially outermost ends of a plurality of arms are arcuately spaced apart according to a pitch sequence describing a pseudo-random pattern of relative spacings so as to reduce or eliminate rotational symmetry of the pulley. In a third aspect, features of the first and second aspects are combined, and in one embodiment, first and second pluralities of arms are, respectively, approximately oppositely canted so as to vary the arcuate spacings of the laterally outermost ends of the arms.Type: ApplicationFiled: June 2, 2010Publication date: December 8, 2011Applicant: DAYCO PRODUCTS LLCInventors: Kevin G. Dutil, James Kevin Lindstrom, Zachary Fittro, Jeffrey A. Swane, Donald B. Brown, Robert James Crist
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Publication number: 20090005202Abstract: A belt tensioner includes an arm, a spring case, and a helical spring having inwardly projecting first and second end portions. Another belt tensioner includes a spring, an arm, a spring case, and a pivot bushing surrounding the spring. An additional belt tensioner includes an idler pulley having a bearing with a mounting hole and includes an arm having a post. The post is positioned in the mounting hole, and an annular rim of the post is deformed radially outward and over the bearing. A method for manufacturing an arm and a spring case of a belt-tensioner includes obtaining a belt-tensioner-arm casting mold including a first section and a second section and obtaining a belt-tensioner-spring-case casting mold including a first segment and a second segment.Type: ApplicationFiled: September 11, 2008Publication date: January 1, 2009Inventors: Robert J. Crist, Kevin G. Dutil, Robert C. Joslyn, Anthony E. Lannutti, Earl E. McShane, Steve E. Scott, Stephen G. Webb
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Patent number: 7448974Abstract: A belt tensioner includes an arm, a spring case, and a helical spring having inwardly projecting first and second end portions. Another belt tensioner includes a spring, an arm, a spring case, and a pivot bushing surrounding the spring. An additional belt tensioner includes an idler pulley having a bearing with a mounting hole and includes an arm having a post. The post is positioned in the mounting hole, and an annular rim of the post is deformed radially outward and over the bearing. A method for manufacturing an arm and a spring case of a belt-tensioner includes obtaining a belt-tensioner-arm casting mold including a first section and a second section and obtaining a belt-tensioner-spring-case casting mold including a first segment and a second segment.Type: GrantFiled: November 5, 2004Date of Patent: November 11, 2008Assignee: Dayco Products, LLCInventors: Robert J. Crist, Kevin G. Dutil, Robert C. Joslyn, Anthony E. Lannutti, Earl E. McShane, Steve E. Scott, Stephen G. Webb
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Patent number: 7229374Abstract: A belt tensioner for a power transmission belt is provided that utilizes asymmetric motion control and is operable in a first condition and a second condition. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, and a spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator coupled to the support member to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces. The tensioner further has a Belleville spring coupled to the arm for pivoting therewith and a friction device in sliding contact with the wedges and Belleville spring.Type: GrantFiled: January 27, 2004Date of Patent: June 12, 2007Assignee: Dayco Products, LLCInventors: Richard J. Meckstroth, William K. Bowman, Steven J. Eck, Kevin G. Dutil, Earl E. McShane
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Patent number: 6863631Abstract: A belt tensioner for a power transmission belt is provided that operates on an endless path and that utilizes asymmetric motion control. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots about the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator inside the drum section utilized to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces.Type: GrantFiled: December 20, 2001Date of Patent: March 8, 2005Assignee: Dayco Products, LLCInventors: Richard J. Meckstroth, William K. Bowman, Kevin G. Dutil, Steven J. Eck, Earl E. McShane
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Publication number: 20040185976Abstract: A belt tensioner for a power transmission belt is provided that utilizes asymmetric motion control and is operable in a first condition and a second condition. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, and a spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator coupled to the support member to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces. The tensioner further has a Belleville spring coupled to the arm for pivoting therewith and a friction device in sliding contact with the wedges and Belleville spring.Type: ApplicationFiled: January 27, 2004Publication date: September 23, 2004Inventors: Richard J. Meckstroth, William K. Bowman, Steven J. Eck, Kevin G. Dutil, Earl E. McShane
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Publication number: 20030119615Abstract: A belt tensioner for a power transmission belt is provided that operates on an endless path and that utilizes asymmetric motion control. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots about the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator inside the drum section utilized to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces.Type: ApplicationFiled: December 20, 2001Publication date: June 26, 2003Inventors: Richard J. Meckstroth, William K. Bowman, Kevin G. Dutil, Steven J. Eck, Earl E. McShane
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Publication number: 20030119616Abstract: A belt tensioner for a power transmission belt is provided that operates on an endless path and that utilizes asymmetric motion control. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots about the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator inside the drum section utilized to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces. The tensioner further has a Bellville spring coupled to the arm and a friction device positioned between the wedges and Bellville spring.Type: ApplicationFiled: December 20, 2001Publication date: June 26, 2003Inventors: Richard J. Meckstroth, William K. Bowman, Kevin G. Dutil, Steven J. Eck, Earl E. McShane
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Patent number: 6575860Abstract: A belt tensioner for a power transmission belt system includes: (a) a base housing having a pivot shaft extending therefrom; (b) a tension arm pivotally mounted on the pivot shaft at a proximal end thereof, the proximal end of the tension arm including a rub surface and the distal end of the tension arm adapted to contact a power transmission belt; (c) a torsion spring operatively coupled between the base housing and the tension arm and adapted to bias the distal end of the tension arm against the power transmission belt; and (d) a damper assembly coupled to the housing, the damper assembly including: (1) a body of friction material that includes a friction surface adjacent to and facing the rub surface of the tension arm and (2) a damper spring integral with the body of friction material and biasing the body of friction material and associated friction surface against the rub surface of the tension arm.Type: GrantFiled: February 28, 2001Date of Patent: June 10, 2003Assignee: Dayco Products, LLCInventor: Kevin G. Dutil