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).

  • Patent number: 8601895
    Abstract: A kinetic energy recovery system for a belt driven accessory system comprising a kinetic energy storage device, a driver having a driver output, a transmission having a gear ratio connected to the driver output, a belt driven accessory system connected to the transmission through a first clutch, the kinetic energy storage device connected to the belt driven accessory system through a second clutch, and the kinetic energy storage device and the transmission connectable through the first clutch and second clutch.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: December 10, 2013
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Imtiaz Ali
  • Patent number: 8602928
    Abstract: An isolator comprising a shaft (10), a pulley (20) journalled to the shaft on a first bushing (40) and a second bushing (50), a torsion spring (30) engaged with the shaft and the pulley, the torsion spring exerting an axial contractive force to retain the pulley on the shaft, a cover member (60) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, the cover member further comprising an axially projecting member (62) disposed radially outwardly of the torsion spring, the pulley comprising a circumferential pocket (24) for cooperatively receiving the projecting member and having a stop (23) disposed within the circumferential pocket, and a rubber member (80) disposed with the stop for engaging the projecting member.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 10, 2013
    Assignee: Gates Corporation
    Inventors: Alexander Serkh, Peter Ward, Imtiaz Ali, Dean Schneider
  • Publication number: 20130324335
    Abstract: An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a clutch carrier journalled to the shaft through a one-way clutch, a torsion spring engaged between the pulley and the clutch carrier, the torsion spring loadable in an unwinding direction, the torsion spring and the pulley having a predetermined clearance between a torsion spring outside diameter surface and a pulley inside diameter surface, and whereby the torsion spring outside diameter surface and a pulley inside diameter surface come into a progressive frictional engagement by torque load dependent radial expansion of the torsion spring.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 5, 2013
    Inventors: Xiaohua Joe Chen, John T. Harvey, Rudy Pupulin, Keming Liu, Alexander Serkh, Imtiaz Ali, Dean Schneider, Peter Ward
  • Publication number: 20130233670
    Abstract: An isolator decoupler comprising a pulley, the pulley journalled to a shaft, a torsion spring having an end engaged with the pulley, the torsion spring loadable in an unwinding direction, a one-way clutch carrier, a one-way clutch disposed between the shaft and the one-way clutch carrier, a wrap spring engagable with an inner surface of the one-way clutch carrier, the wrap spring coupled to the torsion spring, and the wrap spring loadable in the unwinding direction such that the wrap spring through friction is able to lockably engage the inner surface in a driving direction.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 12, 2013
    Inventors: Peter Ward, Alexander Serkh, Imtiaz Ali, Dean Schneider
  • Publication number: 20130228995
    Abstract: A planetary gear mechanism for a bicycle, and more particularly to a planetary gear mechanism comprising a first planetary mechanism connected coaxially in series to a second planetary mechanism, which second planetary mechanism is connected coaxially in series to a third planetary mechanism, the second planetary mechanism output is a step up in speed from the first planetary mechanism output, the third planetary mechanism output is a step up in speed from the second planetary mechanism output.
    Type: Application
    Filed: April 12, 2013
    Publication date: September 5, 2013
    Inventors: Alexander Serkh, Dean Schneider
  • Publication number: 20130157800
    Abstract: A limited slip planetary gear transmission comprising an input member, an output member, a planetary gear set coupled between the input member and the output member, the planetary gear set having a sun gear, and a brake member directly coupled to the sun gear, the brake member controls an output torque of the planetary gear set by controlling a speed of the sun gear.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Inventors: Peter Ward, Dean Schneider, Alexander Serkh, Imitaz Ali
  • Patent number: 8444526
    Abstract: A transmission comprising a first compound planetary gear set having a first brake engaged with a sun gear, a second compound planetary gear set having a second brake engaged with a ring gear, the first compound planetary gear set and the second planetary gear set axially engagable through a first clutch and a second clutch, and the transmission input and transmission output disposed coaxially and configured to input and output torque from the same side of the transmission.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 21, 2013
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Alexander Serkh, Imtiaz Ali, Peter Ward
  • Patent number: 8439792
    Abstract: A planetary gear mechanism for a bicycle, and more particularly to a planetary gear mechanism comprising a first planetary mechanism connected coaxially in series to a second planetary mechanism, which second planetary mechanism is connected coaxially in series to a third planetary mechanism, the second planetary mechanism output is a step up in speed from the first planetary mechanism output, the third planetary mechanism output is a step up in speed from the second planetary mechanism output.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 14, 2013
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Dean Schneider
  • Publication number: 20130092501
    Abstract: An alternator isolating decoupler comprising an alternator shaft, a one-way clutch engaged with the alternator shaft, a first wrap spring releasably engaged with the one-way clutch, a second wrap spring releasably engaged with the one-way clutch, the second wrap spring arranged in parallel with the first wrap spring, the first wrap spring and the second wrap spring in nested relation, the first wrap spring and the second wrap spring each having an end releasably engagable with an end cap, the end cap fixedly connected to an outer housing, the first wrap spring and the second wrap spring each engaged in series with a torsion spring, the torsion spring engaged with the outer housing, and the outer housing engaged with an alternator rotor.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Inventors: Dean Schneider, Peter Ward, Alexander Serkh, Imitiz Ali, John Harvey
  • Patent number: 8419574
    Abstract: An isolator comprising a shaft (10), a pulley (20) journalled to the shaft on a first bushing (40) and a second bushing (50), the shaft comprising a shaft stop (12) disposed on a shaft radially outer surface (14), the pulley and the shaft rotationally moveable relative to each other, the pulley comprising an inner hub (23), the inner hub having a pulley stop (24) disposed to cooperatively engage the shaft stop, a torsion spring (30) engaged with the shaft and the pulley, the torsion spring exerting a contractive force parallel to an axis of rotation (A-A) in order to retain the pulley on the shaft, a cover member (60) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, and a rubber member (80) disposed on the shaft stop for engaging the pulley stop.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 16, 2013
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Peter Ward, Imtiaz Ali, Dean Schneider
  • Patent number: 8418568
    Abstract: A flexible member test apparatus comprising a driver member having a first diameter and a second diameter, the first diameter is not equal to the second diameter, a first driven member coupled by a first flexible member to the driver member through contact of the first flexible member with a first diameter surface, a second driven member coupled by a second flexible member to the driver member through contact of the second flexible member with a second diameter surface, the first driven member rotationally coupled to a magnetic particle clutch, and the second driven member rotationally coupled to the magnetic particle clutch.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: April 16, 2013
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Alexander Serkh, Imtiaz Ali, Peter Ward
  • Publication number: 20130081498
    Abstract: A kinetic energy recovery system for a belt driven accessory system comprising a kinetic energy storage device, a driver having a driver output, a transmission having a gear ratio connected to the driver output, a belt driven accessory system connected to the transmission through a first clutch, the kinetic energy storage device connected to the belt driven accessory system through a second clutch, and the kinetic energy storage device and the transmission connectable through the first clutch and second clutch.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 4, 2013
    Inventors: Alexander Serkh, Imtiaz Ali
  • Patent number: 8403800
    Abstract: A shift mechanism for a transmission comprising a planetary gear transmission, a shift cam engaged with a planetary gear assembly in the planetary gear transmission, the shift cam having a shift cam stop, a rotatable cable ring connected to a moveable cable, the cable ring comprising a ramped portion, a rotatable ramped ring, the ramped ring comprising a ramped portion cooperatively engaged with the cable ring ramped portion, and further the ramped ring having a stop cooperatively engagable with the shift cam stop, a rotation of the cable ring urges the ramped ring a predetermined distance in a direction normal to the plane of rotation of the cable ring, the shaft cam held against rotation by engagement with the ramped ring, and at which predetermined distance the ramped ring is allowed to rotate with the cable ring simultaneous with the axial movement of the ramped ring, and a spring connected between the cable ring and the shift cam, the shaft cam reacting to the spring force rotates upon rotation of the ra
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: March 26, 2013
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Dean Schneider
  • Patent number: 8360908
    Abstract: An expandable pulley comprising a plurality of adjacent segments, each segment being radially moveable, each segment slidingly engaged with a pin member, each pin member having an engagement with each segment such that each segment is moveable in a direction substantially at an angle (?) to a radial along each pin member, a moveable guide member engaged with each segment for spatially locating each segment with respect to another segment, a counterweight cooperatively connected to each segment and cooperatively engageable with each pin member, each counterweight exerting a force opposing a segment centripetal force, and each pin member connected to a hub.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: January 29, 2013
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 8327972
    Abstract: A vehicle steering system transmission comprising a housing, an input shaft journalled to the housing, an electric motor connected to the housing and coupled to the input shaft, an output shaft journalled to the housing, the input shaft and the output shaft coupled by a first pair of sprockets having a first belt trained therebetween and having a first ratio, the first belt and first pair of sprockets comprising a helical tooth configuration, the input shaft and the output shaft coupled by a second pair of sprockets having a second belt trained therebetween and having a second ratio, and the input shaft and the output shaft coupled by a third pair of sprockets having a third belt trained therebetween and having a third ratio.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 11, 2012
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Alexander Serkh
  • Publication number: 20120298474
    Abstract: An isolating decoupler comprising a shaft, a pulley rotationally engaged with the shaft, a coil spring engaged between the pulley and a spring carrier, the spring carrier moveable relative to the shaft and pulley, a one-way clutch mounted to the shaft, a first torsion spring and a second torsion spring engaged between the spring carrier and the one-way clutch, the first torsion spring and the second torsion spring having a releasable frictional engagement with the one-way clutch, the first torsion spring and the second torsion spring comprising adjacent parallel strands and having substantially equal diameters, the first torsion spring and the second torsion spring each being engagable with the pulley, the first torsion spring releasing a frictional engagement with the one-way clutch upon an engagement with the pulley, and the second torsion spring releasing a frictional engagement with the one-way clutch upon an engagement with the pulley.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Inventors: Peter Ward, Alexander Serkh, Imtiaz Ali, Dean Schneider
  • Patent number: 8312959
    Abstract: A vehicle steering system transmission comprising a housing, an input shaft journalled to the housing, an electric motor connected to the housing and coupled to the input shaft, an output shaft journalled to the housing, the input shaft and the output shaft coupled by a first pair of sprockets having a first belt trained therebetween and having a first ratio, the first belt and first pair of sprockets comprising a helical tooth configuration, the input shaft and the output shaft coupled by a second pair of sprockets having a second belt trained therebetween and having a second ratio, and the input shaft and the output shaft coupled by a third pair of sprockets having a third belt trained therebetween and having a third ratio.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 20, 2012
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Alexander Serkh, Thomas M. Lovin
  • Patent number: 8313400
    Abstract: A damped isolator comprising a first hub, a first pulley connected to the first hub, a bearing carrier connected to the first hub, an elastomeric member engaged with the first hub, a one-way clutch engaged with the elastomeric member, a bearing received by the bearing carrier, a second hub engaged with the one-way clutch and the bearing, and a second pulley connected to the second hub.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: November 20, 2012
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Lin Zhu, Matthew Kramp, Imtiaz Ali, Dean Schneider
  • Patent number: 8297401
    Abstract: A vehicle steering system transmission comprising a housing, an input shaft journalled to the housing, an electric motor connected to the housing and coupled to the input shaft, an output shaft journalled to the housing, the input shaft and the output shaft coupled by a first pair of sprockets having a first belt trained therebetween and having a first ratio, the first belt and first pair of sprockets comprising a helical tooth configuration, the input shaft and the output shaft coupled by a second pair of sprockets having a second belt trained therebetween and having a second ratio, and the input shaft and the output shaft coupled by a third pair of sprockets having a third belt trained therebetween and having a third ratio.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: October 30, 2012
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Alexander Serkh
  • Publication number: 20120238392
    Abstract: A belt planetary transmission comprising a sun gear (1) having sun gear teeth (11), a ring gear (3) having ring gear teeth (31), a first toothed belt (4) trained between a first idler (50 and a second idler (51), the first idler and the second idler rotationally connected to a carrier (2), the first toothed belt (4) in simultaneous meshing contact with the ring gear teeth and the sun gear teeth, a second toothed belt (40) trained between a third idler (401) and a fourth idler (402), the third idler and the fourth idler rotationally connected to the carrier, the second toothed belt in simultaneous meshing contact with the ring gear teeth and the sun gear teeth, each of the first idler, second idler, third idler and fourth idler having a center of rotation disposed at a radius (R) from a center of rotation (A-A), and the first toothed belt and the second toothed belt are each in continuous meshing contact with the ring gear teeth and the sun gear teeth through an angle (?) of approximately 90°.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 20, 2012
    Inventors: Alexander Serkh, Dean Schneider, Imtiaz Ali, Peter Ward