Patents by Inventor Jeffrey Hewitt
Jeffrey Hewitt 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: 10591041Abstract: A laminated sprocket assembly is provided formed of a plurality of layers that are connected together. Each of the layers is a stamped sheet metal layer having a plurality of spaced apart teeth located around a periphery thereof. The teeth in the plurality of connected layers are aligned. At least one of voids, channels, openings, or recesses are located in or between at least some of the layers for receiving and holding lubricating oil. This reduces noise and wear.Type: GrantFiled: September 20, 2017Date of Patent: March 17, 2020Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Publication number: 20180010679Abstract: A laminated sprocket assembly is provided formed of a plurality of layers that are connected together. Each of the layers is a stamped sheet metal layer having a plurality of spaced apart teeth located around a periphery thereof. The teeth in the plurality of connected layers are aligned. At least one of voids, channels, openings, or recesses are located in or between at least some of the layers for receiving and holding lubricating oil. This reduces noise and wear.Type: ApplicationFiled: September 20, 2017Publication date: January 11, 2018Applicant: Schaeffler Technologies AG & Co. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Patent number: 9803738Abstract: A laminated sprocket assembly is provided formed of a plurality of layers that are connected together. Each of the layers is a stamped sheet metal layer having a plurality of spaced apart teeth located around a periphery thereof. The teeth in the plurality of connected layers are aligned. At least one of voids, channels, openings, or recesses are located in or between at least some of the layers for receiving and holding lubricating oil. This reduces noise and wear.Type: GrantFiled: January 27, 2016Date of Patent: October 31, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Patent number: 9482333Abstract: A chain and sprocket drive system that includes an inverted tooth chain assembly configured to mesh with a laminated sprocket assembly is provided. The inverted tooth chain assembly includes a plurality of rows of links. The laminated sprocket assembly includes a plurality of plates, each of the plates including a plurality of teeth that are aligned with adjacent teeth. Each tooth has an engaging flank and a disengaging flank. The engaging flank of the teeth on one of the plurality of plates has an enlarged profile in a radially outwardly extending direction in comparison to corresponding ones of the teeth of an adjacent one of the plates, such that a first contact position with a link of the chain assembly carried thereon is located radially outward from a second contact position of the link with the corresponding teeth of the adjacent one of the plurality of plates.Type: GrantFiled: November 11, 2014Date of Patent: November 1, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Publication number: 20160138698Abstract: A laminated sprocket assembly is provided formed of a plurality of layers that are connected together. Each of the layers is a stamped sheet metal layer having a plurality of spaced apart teeth located around a periphery thereof. The teeth in the plurality of connected layers are aligned. At least one of voids, channels, openings, or recesses are located in or between at least some of the layers for receiving and holding lubricating oil. This reduces noise and wear.Type: ApplicationFiled: January 27, 2016Publication date: May 19, 2016Applicant: Schaeffler Technologies AG & Co. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Patent number: 9316292Abstract: A strut including a housing, a plunger within a space in the housing and including a tapered outer circumferential surface, a primary spring engaged with the housing, a wedge element within the space and including a tapered inner circumferential surface engageable with the outer circumferential surface, and a secondary spring engaged with the wedge element and the plunger to urge the plunger in an axial direction. The primary spring urges the plunger in the axial direction with a first force. In a fully extended mode, the plunger is maximally displaced in the axial direction. In a contracted mode, the plunger is displaced in an opposite axial direction in response to application of a second force, sufficiently greater than the first force, on the plunger in the opposite axial direction. When the second force is sufficiently decreased, the plunger displaces with respect to the housing in the axial direction.Type: GrantFiled: March 17, 2015Date of Patent: April 19, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Jeffrey Hewitt, Lucian Botez, Eric Berndt
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Patent number: 9289215Abstract: This invention is directed to implantable coils and, more particularly, to a coil implant having a stretch-resistant member internal to the coil. The implant of the invention is able to freely articulate and torque prior to delivery. Once delivered, the implant is no longer stretch resistant and is therefore able to substantially conform to the vascular site.Type: GrantFiled: November 27, 2012Date of Patent: March 22, 2016Assignee: Covidien LPInventors: Brian Michael Strauss, Todd Jeffrey Hewitt, Ramon Torres Carillo, Khoa Dang Vu, William Robert Patterson, Stacy Leon Faught, Lawrason Charles Wilbur, Scott William Brennan, Vince Divino
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Publication number: 20150233449Abstract: A strut including a housing, a plunger within a space in the housing and including a tapered outer circumferential surface, a primary spring engaged with the housing, a wedge element within the space and including a tapered inner circumferential surface engageable with the outer circumferential surface, and a secondary spring engaged with the wedge element and the plunger to urge the plunger in an axial direction. The primary spring urges the plunger in the axial direction with a first force. In a fully extended mode, the plunger is maximally displaced in the axial direction. In a contracted mode, the plunger is displaced in an opposite axial direction in response to application of a second force, sufficiently greater than the first force, on the plunger in the opposite axial direction. When the second force is sufficiently decreased, the plunger displaces with respect to the housing in the axial direction.Type: ApplicationFiled: March 17, 2015Publication date: August 20, 2015Inventors: Jeffrey Hewitt, Lucian Botez, Eric Berndt
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Publication number: 20150141183Abstract: A chain and sprocket drive system that includes an inverted tooth chain assembly configured to mesh with a laminated sprocket assembly is provided. The inverted tooth chain assembly includes a plurality of rows of links. The laminated sprocket assembly includes a plurality of plates, each of the plates including a plurality of teeth that are aligned with adjacent teeth. Each tooth has an engaging flank and a disengaging flank. The engaging flank of the teeth on one of the plurality of plates has an enlarged profile in a radially outwardly extending direction in comparison to corresponding ones of the teeth of an adjacent one of the plates, such that a first contact position with a link of the chain assembly carried thereon is located radially outward from a second contact position of the link with the corresponding teeth of the adjacent one of the plurality of plates.Type: ApplicationFiled: November 11, 2014Publication date: May 21, 2015Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Patent number: 9033322Abstract: A strut including a housing, a plunger within a space in the housing and including a tapered outer circumferential surface, a primary spring engaged with the housing, a wedge element within the space and including a tapered inner circumferential surface engageable with the outer circumferential surface, and a secondary spring engaged with the wedge element and the plunger to urge the plunger in an axial direction. The primary spring urges the plunger in the axial direction with a first force. In a fully extended mode, the plunger is maximally displaced in the axial direction. In a contracted mode, the plunger is displaced in an opposite axial direction in response to application of a second force, sufficiently greater than the first force, on the plunger in the opposite axial direction. When the second force is sufficiently decreased, the plunger displaces with respect to the housing in the axial direction.Type: GrantFiled: October 3, 2013Date of Patent: May 19, 2015Assignee: Schaeffler Technologies AG & Co. KGInventors: Jeffrey Hewitt, Lucian Botez, Eric Berndt
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Patent number: 8974409Abstract: A catheter used for treatment of complex vasculature, such as a bifurcated aneurysm, is provided with an inflatable balloon at a distal portion thereof. The shape, location and material of the inflatable balloon are selected such that when inflated, the balloon conforms to the shape of the complex vasculature, or at least a portion thereof, without appreciably deforming the vessel walls. In this manner, the balloon can be used to control flow in the vasculature, for example occluding a selected branch of the vasculature during introduction of material in order concentrate the material and minimize its disbursement by blood flow.Type: GrantFiled: June 11, 2013Date of Patent: March 10, 2015Assignee: Covidien LPInventors: Douglas Ray Hayman, Peter Gregory Davis, Maria De Jesus Sanson, Komonn Lim Reedy, Todd Jeffrey Hewitt
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Publication number: 20150018150Abstract: A laminated sprocket assembly is provided formed of a plurality of layers that are connected together. Each of the layers is a stamped sheet metal layer having a plurality of spaced apart teeth located around a periphery thereof. The teeth in the plurality of connected layers are aligned. At least one of voids, channels, openings, or recesses are located in or between at least some of the layers for receiving and holding lubricating oil. This reduces noise and wear.Type: ApplicationFiled: June 18, 2014Publication date: January 15, 2015Applicant: Schaeffler Technologies GmbH & Co. KGInventors: Gregory Cowen, Jesse Myers, Anuj Sahai, Lucian Botez, Jeffrey Hewitt
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Patent number: 8864790Abstract: An intravascular implant delivery system carries an implant by retaining an engagement member engaging the implant in a position proximal of an aperture at a distal end of the delivery system. The engagement member is retained proximal to the aperture by a cord that obstructs the movement of the engagement member through the aperture. The engagement member is free to rotate and move within an area defined by the delivery system, allowing the implant to react to forces imparted to the implant by the movement of the delivery system and implant through a delivery catheter. Once the implant is in a desired implant position, the cord is moved away from an aperture and the engagement member is allowed to move away from the delivery system.Type: GrantFiled: April 16, 2007Date of Patent: October 21, 2014Assignee: Covidien LPInventors: Brian Michael Strauss, Earl Howard Slee, Ramon Torres Carrillo, Khoa Dang Vu, William Robert Patterson, Jessica Liang, Richard Stephen Bein, Todd Jeffrey Hewitt, Stacy Leon Faught, Vince Divino, Darrell Christopher Drysen, Mark Philip Ashby, Justin Arthur Klotz, Maria De Jesus Sanson, Scott William Brennan, Lawrason Charles Wilbur, Lester Eugene Oestreich
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Patent number: 8801747Abstract: This invention is directed to an implant having a coil for embolizing a vascular site, such as aneurysm. The coil has a specific three-dimensional shape that is achieved by winding the coil around a mandrel in a specific pattern and then heat setting the coil and the mandrel, another aspect of the invention. The three-dimensional shape resembles unclosed mobius loops. Also provided are methods of making the coil and methods of embolizing vascular site.Type: GrantFiled: February 27, 2008Date of Patent: August 12, 2014Assignee: Covidien LPInventors: Brian Michael Strauss, Todd Jeffrey Hewitt, Ramon Torres Carrillo, Khoa Dang Vu, William Robert Patterson, Lawrason Charles Wilbur, Justin Klotz, Scott William Brennan, Vince Divino
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Patent number: 8795321Abstract: An intravascular implant delivery system carries an implant by retaining an engagement member engaging the implant in a position proximal of an aperture at a distal end of the delivery system. The engagement member is retained proximal to the aperture by a cord that obstructs the movement of the engagement member through the aperture. The engagement member is free to rotate and move within an area defined by the delivery system, allowing the implant to react to forces imparted to the implant by the movement of the delivery system and implant through a delivery catheter. Once the implant is in a desired implant position, the cord is moved away from an aperture and the engagement member is allowed to move away from the delivery system.Type: GrantFiled: August 30, 2011Date of Patent: August 5, 2014Assignee: Covidien LPInventors: Brian Michael Strauss, Earl Howard Slee, Ramon Torres Carrillo, Khoa Dang Vu, William Robert Patterson, Jessica Liang, Richard Stephen Bein, Todd Jeffrey Hewitt, Stacy Leon Faught, Vince Divino, Darrell Christopher Drysen, Mark Philip Ashby, Justin Arthur Klotz, Maria De Jesus Sanson, Scott William Brennan, Lawrason Charles Wilbur, Lester Eugene Oestreich
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Patent number: 8795320Abstract: An intravascular implant delivery system carries an implant by retaining an engagement member engaging the implant in a position proximal of an aperture at a distal end of the delivery system. The engagement member is retained proximal to the aperture by a cord that obstructs the movement of the engagement member through the aperture. The engagement member is free to rotate and move within an area defined by the delivery system, allowing the implant to react to forces imparted to the implant by the movement of the delivery system and implant through a delivery catheter. Once the implant is in a desired implant position, the cord is moved away from an aperture and the engagement member is allowed to move away from the delivery system.Type: GrantFiled: August 30, 2011Date of Patent: August 5, 2014Assignee: Covidien LPInventors: Brian Michael Strauss, Earl Howard Slee, Ramon Torres Carrillo, Khoa Dang Vu, William Robert Patterson, Jessica Liang, Richard Stephen Bein, Todd Jeffrey Hewitt, Stacy Leon Faught, Vince Divino, Darrell Christopher Drysen, Mark Philip Ashby, Justin Arthur Klotz, Maria De Jesus Sanson, Scott William Brennan, Lawrason Charles Wilbur, Lester Eugene Oestreich
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Patent number: 8777978Abstract: An intravascular implant delivery system carries an implant by retaining an engagement member engaging the implant in a position proximal of an aperture at a distal end of the delivery system. The engagement member is retained proximal to the aperture by a cord that obstructs the movement of the engagement member through the aperture. The engagement member is free to rotate and move within an area defined by the delivery system, allowing the implant to react to forces imparted to the implant by the movement of the delivery system and implant through a delivery catheter. Once the implant is in a desired implant position, the cord is moved away from an aperture and the engagement member is allowed to move away from the delivery system.Type: GrantFiled: August 30, 2011Date of Patent: July 15, 2014Assignee: Covidien LPInventors: Brian Michael Strauss, Earl Howard Slee, Ramon Torres Carrillo, Khoa Dang Vu, William Robert Patterson, Jessica Liang, Richard Stephen Bein, Todd Jeffrey Hewitt, Stacy Leon Faught, Vince Divino, Darrell Christopher Drysen, Mark Philip Ashby, Justin Arthur Klotz, Maria De Jesus Sanson, Scott William Brennan, Lawrason Charles Wilbur, Lester Eugene Oestreich
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Publication number: 20140097563Abstract: A strut including a housing, a plunger within a space in the housing and including a tapered outer circumferential surface, a primary spring engaged with the housing, a wedge element within the space and including a tapered inner circumferential surface engageable with the outer circumferential surface, and a secondary spring engaged with the wedge element and the plunger to urge the plunger in an axial direction. The primary spring urges the plunger in the axial direction with a first force. In a fully extended mode, the plunger is maximally displaced in the axial direction. In a contracted mode, the plunger is displaced in an opposite axial direction in response to application of a second force, sufficiently greater than the first force, on the plunger in the opposite axial direction. When the second force is sufficiently decreased, the plunger displaces with respect to the housing in the axial direction.Type: ApplicationFiled: October 3, 2013Publication date: April 10, 2014Applicant: Schaeffler Technologies AG & Co. KGInventors: Jeffrey Hewitt, Lucian Botez, Eric Berndt
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Publication number: 20130281836Abstract: A catheter used for treatment of complex vasculature, such as a bifurcated aneurysm, is provided with an inflatable balloon at a distal portion thereof. The shape, location and material of the inflatable balloon are selected such that when inflated, the balloon conforms to the shape of the complex vasculature, or at least a portion thereof, without appreciably deforming the vessel walls. In this manner, the balloon can be used to control flow in the vasculature, for example occluding a selected branch of the vasculature during introduction of material in order concentrate the material and minimize its disbursement by blood flow.Type: ApplicationFiled: June 11, 2013Publication date: October 24, 2013Inventors: Douglas Ray Hayman, Peter Gregory Davis, Maria De Jesus Sanson, Komonn Lim Reedy, Todd Jeffrey Hewitt
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Patent number: 8486046Abstract: A catheter used for treatment of complex vasculature, such as a bifurcated aneurysm, is provided with an inflatable balloon at a distal portion thereof. The shape, location and material of the inflatable balloon are selected such that when inflated, the balloon conforms to the shape of the complex vasculature, or at least a portion thereof, without appreciably deforming the vessel walls. In this manner, the balloon can be used to control flow in the vasculature, for example occluding a selected branch of the vasculature during introduction of material in order concentrate the material and minimize its disbursement by blood flow.Type: GrantFiled: March 11, 2011Date of Patent: July 16, 2013Assignee: Covidien LPInventors: Douglas Ray Hayman, Peter Gregory Davis, Maria De Jesus Sanson, Komonn Lim Reedy, Todd Jeffrey Hewitt