Patents by Inventor Alexander Serkh
Alexander Serkh 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: 20230211980Abstract: An illustrative example embodiment of an elevator sheave assembly includes a plurality of polymer rings that are secured together. The plurality of polymer rings includes at least two polymer rings that each have an outer circumferential surface that defines a portion of a belt guiding surface adjacent a flange at a longitudinal end of the sheave assembly. The at least two polymer rings each include a bearing supported inside the ring.Type: ApplicationFiled: January 3, 2022Publication date: July 6, 2023Inventors: Jun MA, Alexander SERKH
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Patent number: 11649888Abstract: An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.Type: GrantFiled: June 7, 2021Date of Patent: May 16, 2023Assignee: Gates CorporationInventors: Alexander Serkh, Anthony R. Mora, Essie Rahdar
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Patent number: 11624434Abstract: An isolator comprising a pulley having a pulley stop, a plate attached to the pulley, a shaft, the pulley journalled to the shaft, a torsion spring attached to the shaft, a damping member attached to the torsion spring, the damping member disposed between the plate and the pulley, and the damping member compressing a damping fluid against the pulley stop.Type: GrantFiled: June 14, 2019Date of Patent: April 11, 2023Assignee: Gates CorporationInventors: Anthony R. Mora, Alexander Serkh, Keming Liu, Xiaohua Joe Chen
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Publication number: 20230039281Abstract: Described herein is a tensioner device, and assemblies and methods of manufacture thereof. The tensioner device may be adapted to create a target tension in an associated belt based on the measured length of the belt and/or measure characteristics of a biasing element, such as a stiffness of the biasing element. A biasing element may exhibit a measured stiffness and be associated with a damping assembly and a base of the tensioner device. An engagement member may be associated with the damping assembly for movement therewith and angularly displaceable relative to the base and the biasing element to tension the belt. In one example, the biasing element may be connected to the damping assembly at a position determined by the measured stiffness to define a value of the angular displacement of the engagement member relative to the biasing element and create a target tension in the belt.Type: ApplicationFiled: January 8, 2021Publication date: February 9, 2023Inventors: Alexander Serkh, Anthony R. Mora
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Publication number: 20230039803Abstract: Described herein is a tensioner device, and assemblies and methods of manufacture thereof. The tensioner device may be adapted to create a target tension in an associated belt based on the measured length of the belt. The tensioner device may include an engagement member having a surface adapted to engage the belt and a biasing element associated with the engagement member. The biasing element has a loaded configuration that causes the engagement member to exert a force on the belt to create the target tension. In one example, the biasing element is manipulated into a loaded configuration so that the biasing element exhibits a deflection and an effective spring rate for creating the target tension. The belt may be trapped within the tensioner device with a bracket assembly enclosing one or more runs of belt relative to the engagement member.Type: ApplicationFiled: January 8, 2021Publication date: February 9, 2023Inventors: Anthony R. Mora, Alexander Serkh, Thomas Lovin, Nicholas P. Dougherty, David P. Rieland, Brett Bertrand
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Patent number: 11549558Abstract: An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a one-way clutch engaged with the shaft, a spring carrier engaged with the one-way clutch, the spring carrier having a spring carrier surface, a torsion spring having a first end laser welded to the pulley and a second end laser welded to the spring carrier, the torsion spring having a volute with a width w, an annular spring support member having a spring support member outside surface, the annular spring support member independently moveable from the spring carrier and independently moveable from the shaft, a gap g between the annular spring support member and the spring carrier, the gap g being less than the width w, the first end comprising a first end coil, the first end coil bearing upon the spring support member outside surface, the first end coil laser welded to the spring support member outside surface, a torsion spring radial contraction limited by engagement with the spring carrier surface, and the gap g and the width w havType: GrantFiled: October 9, 2018Date of Patent: January 10, 2023Assignee: Gates CorporationInventors: Peter Ward, Xiaohua Joe Chen, Charles M. Sendegeya, Alexander Serkh, Yahya Hodjat, Essie Rahdar, Wanzhi Han
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Publication number: 20210293286Abstract: An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Inventors: Alexander Serkh, Anthony R. Mora, Essie Rahdar
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Patent number: 11028884Abstract: An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.Type: GrantFiled: July 20, 2018Date of Patent: June 8, 2021Assignee: Gates CorporationInventors: Alexander Serkh, Anthony R. Mora, Essie Rahdar
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Publication number: 20200393033Abstract: An isolator comprising a pulley having a pulley stop, a plate attached to the pulley, a shaft, the pulley journalled to the shaft, a torsion spring attached to the shaft, a damping member attached to the torsion spring, the damping member disposed between the plate and the pulley, and the damping member compressing a damping fluid against the pulley stop.Type: ApplicationFiled: June 14, 2019Publication date: December 17, 2020Inventors: Anthony R. Mora, Alexander Serkh, Keming Liu, Xiaohua Joe Chen
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Publication number: 20200393034Abstract: An isolator comprising a pulley and a shaft, the pulley journalled to the shaft, a load stop, a torsion spring, a damping member attached to the torsion spring, the damping member disposed between the load stop and the torsion spring, and the damping member compressing a damping fluid against the load stop; where the load stop is attached to the pulley or the shaft and the torsion spring is attached to the shaft or the pulley, respectively.Type: ApplicationFiled: June 12, 2020Publication date: December 17, 2020Inventors: Anthony R. Mora, Alexander Serkh, Keming Liu, Xiaohua Joe Chen
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Patent number: 10774906Abstract: A tensioner comprising a base, a first tensioner subassembly pivotally mounted to the base, a second tensioner subassembly pivotally mounted to the base, a tensile member joining the first tensioner subassembly and the second tensioner subassembly, the first tensioner subassembly urged in a direction opposite the second tensioner subassembly, and a one-way clutch frictionally engaged with the first tensioner subassembly whereby a relative movement of the first tensioner subassembly away from the second tensioner subassembly is restricted for a first predetermined operating condition and a relative movement of the first tensioner subassembly toward the second tensioner subassembly is not restricted for a second predetermined operating condition.Type: GrantFiled: March 27, 2018Date of Patent: September 15, 2020Assignee: Gates CorporationInventors: Alexander Serkh, Anthony R. Mora
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Publication number: 20200132173Abstract: A tensioner comprising a bracket, a first swing arm pivotally mounted to the bracket, a first pulley journalled to the first swing arm, a second swing arm pivotally mounted to the bracket, a second pulley journalled to the second swing arm, and a damping member connected between the first swing arm and the second swing arm, the damping member having a asymmetric damping characteristic.Type: ApplicationFiled: October 24, 2018Publication date: April 30, 2020Inventors: Anthony R. Mora, Alexander Serkh, Minchun Hao, Keming Liu, Andrzej Dec
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Publication number: 20200040947Abstract: An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a one-way clutch engaged with the shaft, a spring carrier engaged with the one-way clutch, the spring carrier having a spring carrier surface, a torsion spring having a first end laser welded to the pulley and a second end laser welded to the spring carrier, the torsion spring having a volute with a width w, an annular spring support member having a spring support member outside surface, the annular spring support member independently moveable from the spring carrier and independently moveable from the shaft, a gap g between the annular spring support member and the spring carrier, the gap g being less than the width w, the first end comprising a first end coil, the first end coil bearing upon the spring support member outside surface, the first end coil laser welded to the spring support member outside surface, a torsion spring radial contraction limited by engagement with the spring carrier surface, and the gap g and the width w havType: ApplicationFiled: October 9, 2018Publication date: February 6, 2020Inventors: Peter Ward, Xiaohua Joe Chen, Charles M. Sendegeya, Alexander Serkh, Yahya Hodjat, Essie Rahdar, Wanzhi Han
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Publication number: 20200025260Abstract: An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.Type: ApplicationFiled: July 20, 2018Publication date: January 23, 2020Inventors: Alexander Serkh, Anthony R. Mora, Essie Rahdar
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Patent number: 10520039Abstract: An isolating decoupler comprising a hub, a pulley journalled to the hub, a torsion spring having a first torsion spring end welded directly to the hub, a wrap spring having a first wrap spring end welded directly to a second torsion spring end, a wrap spring outer surface fictionally engaged with a pulley inner surface, and a wrap spring second end temporarily engagable with the torsion spring first end whereby the frictional engagement between the wrap spring outer surface and the pulley inner surface is progressively released as a torque load increases.Type: GrantFiled: August 28, 2017Date of Patent: December 31, 2019Assignee: Gates CorporationInventors: Alexander Serkh, Essie Rahdar
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Publication number: 20190301572Abstract: A tensioner comprising a base, a first tensioner subassembly pivotally mounted to the base, a second tensioner subassembly pivotally mounted to the base, a tensile member joining the first tensioner subassembly and the second tensioner subassembly, the first tensioner subassembly urged in a direction opposite the second tensioner subassembly, and a one-way clutch frictionally engaged with the first tensioner subassembly whereby a relative movement of the first tensioner subassembly away from the second tensioner subassembly is restricted for a first predetermined operating condition and a relative movement of the first tensioner subassembly toward the second tensioner subassembly is not restricted for a second predetermined operating condition.Type: ApplicationFiled: March 27, 2018Publication date: October 3, 2019Inventors: Alexander Serkh, Anthony R. Mora
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Publication number: 20190063507Abstract: An isolating decoupler comprising a hub, a pulley journalled to the hub, a torsion spring having a first torsion spring end welded directly to the hub, a wrap spring having a first wrap spring end welded directly to a second torsion spring end, a wrap spring outer surface fictionally engaged with a pulley inner surface, and a wrap spring second end temporarily engagable with the torsion spring first end whereby the frictional engagement between the wrap spring outer surface and the pulley inner surface is progressively released as a torque load increases.Type: ApplicationFiled: August 28, 2017Publication date: February 28, 2019Inventors: Alexander Serkh, Essie Rahdar
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Patent number: 10161374Abstract: A starter generator system comprising an engine driving a first belt and engaged with a second belt through a one-way clutch, a starter generator configured to be driven by the engine through the second belt or to drive the engine through the second belt according to an engine condition, and an accessory engaged with the second belt through an accessory clutch, the accessory drivable by the first belt or the second belt.Type: GrantFiled: January 11, 2017Date of Patent: December 25, 2018Assignee: Gates CorporationInventors: Alexander Serkh, Keming Liu, Ilya Kleyman
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Patent number: 10087994Abstract: An isolating decoupler comprising a shaft, a pulley having an inner surface, a pulley rotationally engaged about the shaft, a torsion spring having a first section having a major diameter and a second section having a minor diameter, the major diameter is greater than the minor diameter, the torsion spring engaged with the shaft, a wrap spring having an outer diameter greater than an inner surface diameter, the wrap spring frictionally engaging the inner surface, the wrap spring loaded in an unwinding direction, the torsion spring having an end fixedly connected to the wrap spring, the torsion spring loaded in an unwinding direction whereby the diameter of each coil of the torsion spring decreases in a progressive sequence as a load increases, the first section is disposed radially inboard of the wrap spring such that the first section moves radially outward to clamp the wrap spring during a load condition.Type: GrantFiled: April 19, 2016Date of Patent: October 2, 2018Assignee: Gates CorporationInventors: Alexander Serkh, Ilya Kleyman
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Patent number: 10024415Abstract: An isolating decoupler comprising a hub for connection to a shaft, a pulley journalled to the hub, the pulley having a belt engaging surface, a composite spring having a clutch portion, a transition portion and a variable diameter portion, the composite spring engaged between the hub and the pulley, the clutch portion diameter reducible in a loading direction for a frictional engagement with the pulley in the loading direction, the frictional engagement of the clutch portion progressively releasable from the pulley in an unloading direction, the variable diameter portion having a diameter which varies according to a torque load; and an inertial member engaged with the hub through a damping member.Type: GrantFiled: November 2, 2015Date of Patent: July 17, 2018Assignee: GATES CORPORATIONInventors: Dean Schneider, Alexander Serkh, Benjamin R. Langhorst