Patents by Inventor James R. Sheren
James R. Sheren 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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Publication number: 20180045089Abstract: A rocker arm includes an outer arm having a first side and a second side, an inner arm positioned between the first side and the second side of the outer arm, a pivot axle pivotally coupling the inner arm and the outer arm at a first end of each of the inner arm and the outer arm, and a latch having a first position and a second position. The latch in the first position pivotally fixes the inner arm and the outer arm at a second end of each of the inner arm and the outer arm, and in the second position allows the inner arm and the outer arm to pivot independently. The latch is responsive to hydraulic pressure in a hydraulic fluid passage to selectively move to other of the first position and the second position. A lost motion spring is coupled to the inner arm.Type: ApplicationFiled: October 24, 2017Publication date: February 15, 2018Inventors: Andrei Dan Radulescu, Austin Robert Zurface, James R. Sheren, Anthony L. Spoor, Luigi Lia, Philip Michael Kline
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Patent number: 9885258Abstract: A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy of rocker arm assemblies manufactured to previous standards.Type: GrantFiled: August 31, 2015Date of Patent: February 6, 2018Assignee: EATON CORPORATIONInventors: Anthony L. Spoor, James R. Sheren
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Publication number: 20180030861Abstract: An apparatus includes a ball plunger post and a valve stem post extending upward from a base, the ball plunger post having a size and a shape of a hydraulic lift adjuster (HLA) of a predefined engine, and the valve stem post having a size and a shape of a valve stem of the predefined engine. The apparatus includes a fixture sized and shaped to receive a switching rocker arm assembly, the switching rocker arm assembly having a first end for pivoting and a second end for latching, and a latch with a latch pin fitting into a latch bore and a latch seat. The apparatus includes a latch rod for positioning within the latch bore to rest upon the latch seat, the latch rod having a hardness higher than that of the latch seat and a same diameter as the latch pin, and adapted for coining the latch seat.Type: ApplicationFiled: September 20, 2017Publication date: February 1, 2018Inventors: Anthony L. Spoor, James R. Sheren
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Patent number: 9869211Abstract: A method of assembling a switching rocker arm assembly having an inner arm, an outer arm and a latch. The method includes indenting an outer arm surface on the outer arm, the outer arm surface defining an arcuate aperture. An inner arm surface can be indented on the inner arm at an inner arm latch shelf. A latch can be positioned relative to the inner and outer arms.Type: GrantFiled: August 28, 2015Date of Patent: January 16, 2018Assignee: EATON CORPORATIONInventors: James R. Sheren, Anthony L. Spoor, Luigi Lia, Philip Michael Kline
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Patent number: 9822673Abstract: A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy of rocker arm assemblies manufactured to previous standards.Type: GrantFiled: December 28, 2015Date of Patent: November 21, 2017Assignee: EATON CORPORATIONInventors: Anthony L. Spoor, James R. Sheren
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Publication number: 20160273413Abstract: Tools and methods for indenting and assembling a switching rocker arm assembly having an inner arm, an outer arm and a latch. The tools and methods are directed to eliminating requirements for matched sets of components of rocker arm assemblies so that the assembled indented parts have desired latch lash tolerances. The tools used include fixtures and clamps for indenting kidney-bean shaped passages in an outer arm that mount a pivot axle of the outer arm. The tools used may also include a fixture and clamps for indenting a latch shelf of the inner arm. Indenting the inner arm and outer arm using these methods and fixtures results in switching rocker arm assemblies that fit together, and when assembled into a valve, have a desired latch lash.Type: ApplicationFiled: June 2, 2016Publication date: September 22, 2016Inventors: James R. Sheren, Anthony L. Spoor, Luigi Lia, Philip Michael Kline
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Publication number: 20160146064Abstract: A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy of rocker arm assemblies manufactured to previous standards.Type: ApplicationFiled: December 28, 2015Publication date: May 26, 2016Inventors: Anthony L. Spoor, James R. Sheren
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Publication number: 20160115831Abstract: A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy of rocker arm assemblies manufactured to previous standards.Type: ApplicationFiled: December 28, 2015Publication date: April 28, 2016Inventors: Anthony L. Spoor, James R. Sheren
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Publication number: 20150371793Abstract: A method of assembling a switching rocker arm assembly having an inner arm, an outer arm and a latch. The method includes indenting an outer arm surface on the outer arm, the outer arm surface defining an arcuate aperture. An inner arm surface can be indented on the inner arm at an inner arm latch shelf. A latch can be positioned relative to the inner and outer arms.Type: ApplicationFiled: August 28, 2015Publication date: December 24, 2015Inventors: James R. Sheren, Anthony L. Spoor, Luigi Lia, Philip Michael Kline
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Publication number: 20150369095Abstract: A novel latch seat for a switching rocker arm assembly used in variable valve actuation (VVA) systems for internal combustion engines. The seat is formed interactively in the assembled switching rocker arm using a novel fixture and press. The press interactively creates a curved dimple of the correct curvature, position and depth while measuring several lash dimensions. Since the latch seat is formed on the assembled rocker arm assembly, the latch seat depth is designed to account for the inaccuracies in the rocker arm assembly parts which create lash. Therefore all of the parts may be made with less precision since the latch seat is sized to compensate for the inaccuracies of all of the parts. The rocker arm assembly parts now may be manufactured to less stringent standards, but result in a rocker arm assembly with same accuracy of rocker arm assemblies manufactured to previous standards.Type: ApplicationFiled: August 31, 2015Publication date: December 24, 2015Inventors: Anthony L. Spoor, James R. Sheren
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Patent number: 8752513Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: GrantFiled: March 18, 2011Date of Patent: June 17, 2014Assignee: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Patent number: 8726862Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: GrantFiled: March 18, 2011Date of Patent: May 20, 2014Assignee: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Patent number: 8375909Abstract: A reciprocating lever for a valve train assembly is provided, including a receiving portion and at least one retaining feature. The receiving portion is for selectively receiving a member that is actuated by the reciprocating lever. An actuation direction is also included and is defined by an actuation axis, wherein the reciprocating lever selectively actuates the member. The at least one retaining feature is located at the receiving portion of the reciprocating lever. The at least one retaining feature is configured to selectively engage with and limit relative movement of the member with respect to the reciprocating lever along the actuation axis.Type: GrantFiled: January 30, 2009Date of Patent: February 19, 2013Assignee: Eaton CorporationInventors: Andrei D. Radulescu, James R. Sheren, Brian K. Vandeusen
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Publication number: 20110226208Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Applicant: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Publication number: 20110226209Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Applicant: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Publication number: 20100192889Abstract: A reciprocating lever for a valve train assembly is provided, including a receiving portion and at least one retaining feature. The receiving portion is for selectively receiving a member that is actuated by the reciprocating lever. An actuation direction is also included and is defined by an actuation axis, wherein the reciprocating lever selectively actuates the member. The at least one retaining feature is located at the receiving portion of the reciprocating lever. The at least one retaining feature is configured to selectively engage with and limit relative movement of the member with respect to the reciprocating lever along the actuation axis.Type: ApplicationFiled: January 30, 2009Publication date: August 5, 2010Inventors: Andrei D. Radulescu, James R. Sheren, Brian K. Vandeusen
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Patent number: 5911641Abstract: A chain tensioner (19) having a housing (23) and a plunger (29), in which the housing includes a mounting surface (39) to be in face-to-face relationship with a wall surface (35) of the engine block (E). The tensioner includes a retainer member (43;81) having a retaining portion (55;85) and a wall-engaging portion (41;87). Before assembly, the retaining portion (55;85) engages a shoulder (65) on the plunger (29) to keep it within its bore (25) When the housing (23) of the tensioner is bolted to the engine block (E), the wall-engaging portion (41;87) engages the wall surface (35), and tightening of the bolts gradually moves the retaining portion (55;85) to a position in which it no longer engages the plunger (29), thus permitting the plunger to move outward of its bore.Type: GrantFiled: December 23, 1997Date of Patent: June 15, 1999Assignee: Eaton CorporationInventors: James R. Sheren, Richard L. Madden
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Patent number: D797152Type: GrantFiled: April 6, 2015Date of Patent: September 12, 2017Assignee: Eaton CorporationInventor: James R. Sheren