Patents by Inventor Shiwei Qin
Shiwei Qin 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: 20230367235Abstract: The present invention relates to an electrophotographic photoreceptor, which includes a conductive substrate; an undercoat layer disposed on the conductive substrate and capable of conforming to the contour of the conductive substrate, a photoconductor charge generation layer disposed on the undercoat layer and capable of conforming to the contour of the undercoat layer, and a charge transport layer disposed on the photoconductor charge generation layer. The charge transport layer contains a charge transport material, a binder resin, a fluorine-containing resin, and a plurality of polyhedral oligomeric silsesquioxane (POSS) particles evenly dispersed in the binder resin, and the POSS particles are interconnected with at least one fluorine group and at least two non-fluoridated groups. By adding approximately 1% of the POSS particles and lubricant nanoparticles, a life-time improvement of at least 20% is achieved for an OPC drum.Type: ApplicationFiled: May 10, 2023Publication date: November 16, 2023Inventors: Yong ZHU, Yubo CHENG, Shiwei QIN, Chenmin LIU
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Patent number: 11807774Abstract: The invention relates to a thoroughly modified, functionalized polymeric hard coating material represented by one of the following formulae for a bendable, transparent and photo/thermal curable coating film: [R1RaSiO3/2]??Formula (1); [R1R2RaSiO3/2]??Formula (2). This invention further relates to the synthetic method and application of the thoroughly modified, functionalized polymeric hard coating material. The thoroughly modified, functionalized polymeric hard coating material-containing composition for a coating exhibits higher surface hardness of at least 6H on flexible substrates, higher surface hardness of at least 9H on rigid substrates, and a certain degree of flexibility, with potential properties such as a light transparency of at least 85% and/or an antimicrobial effectiveness of at least 99%, and/or anti-scratch ability.Type: GrantFiled: December 7, 2020Date of Patent: November 7, 2023Assignee: Nano and Advanced Materials Institute LimitedInventors: Yong Zhu, Jianping Han, Yubo Cheng, Shiwei Qin, Lanqi Huang, Chenmin Liu
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Patent number: 11714932Abstract: A drill bit design generator uses drill bit metrics to generate drill bit designs with reduced 3D coupled vibration. The drill bit design generator generates an initial set of drill bit designs that are simulated in a deployed or artificial environment. Simulated drill bits according to the initial drill bit designs have gyroscopic sensors that detect the presence of 3D coupled vibration. A drill bit simulator tracks metrics such as side cutting efficiency and drilling efficiency during simulations and correlates these metrics with 3D coupled vibration. The drill bit design generator determines thresholds for these metrics using correlations with 3D coupled vibration and generates updated/new drill bit designs using the metric thresholds.Type: GrantFiled: August 28, 2020Date of Patent: August 1, 2023Assignee: Halliburton Energy Services, Inc.Inventors: Shilin Chen, Shiwei Qin
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Publication number: 20230088192Abstract: A foldable ultrathin glass article includes an ultrathin chemically-tempered foldable glass substrate having a thickness of approximately 100 microns or less and a compressive surface stress of at least 100 MPa. A single-layer hard coating is bonded to the first and/or second surface of the ultrathin tempered glass foldable substrate without an adhesive layer. The hard coating includes at least one silsesquioxane having a silicon-oxygen core framework directly bonded to the ultrathin tempered glass foldable substrate. The impact resistance defined by a maximum pen drop height without glass failure is at least four times greater than the ultrathin tempered glass foldable substrate without the hard coating. The hard coating has a surface hardness of at least 7H surface hardness and has a hydrophobic surface with a water contact angle of at least 100°. The coating has a transparency of at least 98 percent compared to uncoated substrates.Type: ApplicationFiled: September 6, 2022Publication date: March 23, 2023Inventors: Shiwei QIN, Yong ZHU, Yubo CHENG, Jianping HAN, Chui Wan TSE, Chenmin LIU
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Publication number: 20220067234Abstract: A drill bit design generator uses drill bit metrics to generate drill bit designs with reduced 3D coupled vibration. The drill bit design generator generates an initial set of drill bit designs that are simulated in a deployed or artificial environment. Simulated drill bits according to the initial drill bit designs have gyroscopic sensors that detect the presence of 3D coupled vibration. A drill bit simulator tracks metrics such as side cutting efficiency and drilling efficiency during simulations and correlates these metrics with 3D coupled vibration. The drill bit design generator determines thresholds for these metrics using correlations with 3D coupled vibration and generates updated/new drill bit designs using the metric thresholds.Type: ApplicationFiled: August 28, 2020Publication date: March 3, 2022Inventors: Shilin Chen, Shiwei Qin
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Publication number: 20210404299Abstract: Acid plays an important role in the hydraulic fracturing process, such as removing damage from the cement and formation which can result from perforating operations, thus providing a better path for the fracturing operations that follow. The disclosure relates generally to microencapsulated acid or acid precursor for targeted delivery and dosing of acid at the site of perforation in hydraulic fracturing applications, device and method of use the same. The targeted delivery and dosing of acid at the site of perforation provides the benefit of, including but not limited to, eliminating over acidizing (limiting near wellbore formation damage) and optimizing the removal of perforation residue and formation materials for lowering break-down pressure.Type: ApplicationFiled: June 20, 2019Publication date: December 30, 2021Inventors: Denise Nicole BENOIT, Peter DW INGLIS, Shiwei QIN, Brenden Michael GROVE, Joachim Alexander PIHL, Jianxin LU
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Publication number: 20210189173Abstract: The invention relates to a thoroughly modified, functionalized polymeric hard coating material represented by one of the following formulae for a bendable, transparent and photo/thermal curable coating film: [R1RaSiO3/2]??Formula (1); [R1R2RaSiO3/2]??Formula (2). This invention further relates to the synthetic method and application of the thoroughly modified, functionalized polymeric hard coating material. The thoroughly modified, functionalized polymeric hard coating material-containing composition for a coating exhibits higher surface hardness of at least 6H on flexible substrates, higher surface hardness of at least 9H on rigid substrates, and a certain degree of flexibility, with potential properties such as a light transparency of at least 85% and/or an antimicrobial effectiveness of at least 99%, and/or anti-scratch ability.Type: ApplicationFiled: December 7, 2020Publication date: June 24, 2021Inventors: Yong ZHU, Jianping HAN, Yubo CHENG, Shiwei QIN, Lanqi HUANG, Chenmin LIU
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Patent number: 10774593Abstract: A seal assembly includes a seal groove defined at least partially between a first member and a second member rotatable relative to the first member, an annular sealing element positioned in the seal groove and providing a mud surface, a lubricant surface axially opposite the mud surface, an inner radial surface, and an outer radial surface radially opposite the inner radial surface. One of the inner and outer radial surfaces is a dynamic surface that seals against the first member when the sealing element rotates with the second member, or seals against the second member when the second member rotates relative to the sealing element. A lubricant channel is defined through the sealing element and extending between the lubricant surface and the dynamic surface to provide a lubricant to the dynamic surface.Type: GrantFiled: May 20, 2016Date of Patent: September 15, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Shiwei Qin, Douglas Bruce Caraway, Micheal Burl Crawford
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Publication number: 20190119987Abstract: A seal assembly includes a seal groove defined at least partially between a first member and a second member rotatable relative to the first member, an annular sealing element positioned in the seal groove and providing a mud surface, a lubricant surface axially opposite the mud surface, an inner radial surface, and an outer radial surface radially opposite the inner radial surface. One of the inner and outer radial surfaces is a dynamic surface that seals against the first member when the sealing element rotates with the second member, or seals against the second member when the second member rotates relative to the sealing element. A lubricant channel is defined through the sealing element and extending between the lubricant surface and the dynamic surface to provide a lubricant to the dynamic surface.Type: ApplicationFiled: May 20, 2016Publication date: April 25, 2019Applicant: Halliburton Energy Services, Inc.Inventors: Shiwei Qin, Douglas Bruce Caraway, Micheal Burl Crawford
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Patent number: 9863486Abstract: A driven accessory that includes an input member, a cover, an output member, a clutch and a clutch actuator. The input member is rotatable about an axis and has a hub, an outer rim, and a radially extending web that couples the hub to the outer rim. The cover is coupled to the input member for common rotation about the axis and cooperates with the input member to define a clutch cavity. The clutch is received in the clutch cavity and selectively transmits rotary power between the input member and the output member. The clutch actuator is selectively operable to change the operational state in which the clutch operates. The clutch actuator has an electromagnetic coil that is disposed outside the clutch cavity. The hub is disposed along the axis between the clutch and the electromagnetic coil.Type: GrantFiled: September 19, 2016Date of Patent: January 9, 2018Assignee: BorgWarner Inc.Inventors: Shiwei Qin, James Ignatovich
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Patent number: 9765827Abstract: A fail-safe friction clutch assembly for a vehicle accessory, particularly to drive a vehicle cooling pump, and more particularly as part of a dual mode drive for a cooling pump, together with an electric motor. The friction clutch assembly includes a friction plate member connected to a central rotatable shaft member used for operating the vehicle accessory. A pair of friction lining members are positioned on opposite sides of the friction plate member. An armature member is spring biased to axially force the friction plate member and friction lining member against a housing or cover which is rotating at input speed. A solenoid assembly is used to overcome the spring bias and pull the armature and friction plate member away from the housing.Type: GrantFiled: October 19, 2015Date of Patent: September 19, 2017Assignee: BorgWarner Inc.Inventor: Shiwei Qin
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Publication number: 20170009819Abstract: A driven accessory that includes an input member, a cover, an output member, a clutch and a clutch actuator. The input member is rotatable about and axis and has a hub, an outer rim, and a radially extending web that couples the hub to the outer rim. The cover is coupled to the input member for common rotation about the axis and cooperates with the input member to define a clutch cavity. The clutch is received in the clutch cavity and selectively transmits rotary power between the input member and the output member. The clutch actuator is selectively operable to change the operational state in which the clutch operates. The clutch actuator has an electromagnetic coil that is disposed outside the clutch cavity.Type: ApplicationFiled: September 19, 2016Publication date: January 12, 2017Inventors: Shiwei Qin, James Ignatovich
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Patent number: 9482286Abstract: A fail-safe friction clutch assembly for a vehicle accessory, particularly to drive a vehicle cooling pump, and more particularly as part of a dual mode drive for a cooling pump, together with an electric motor. The friction clutch assembly includes a friction plate member connected to a central rotatable shaft member used for operating the vehicle accessory. A pair of friction lining members are positioned on opposite sides of the friction plate member. An armature member is spring biased to axially force the friction plate member and friction lining member against a housing or cover which is rotating at input speed. A solenoid assembly is used to overcome the spring bias and pull the armature and friction plate member away from the housing.Type: GrantFiled: December 19, 2013Date of Patent: November 1, 2016Assignee: BorgWarner Inc.Inventor: Shiwei Qin
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Patent number: 9478341Abstract: A solenoid assembly having a solenoid core, coil and flux plate. The flux plate has inner and outer ring members connected by connecting members. A stop member with a ledge is used to selectively prevent an armature member from coming into contact with the flux plate.Type: GrantFiled: November 4, 2013Date of Patent: October 25, 2016Assignee: BorgWarner Inc.Inventors: Shiwei Qin, James Ignatovich
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Patent number: 9458897Abstract: An ON-OFF vehicle accessory for driving vehicle cooling pump or cooling fan. The accessory having a friction clutch assembly with a friction plate member connected to a central rotatable shaft member. A biased armature member is adapted to force a friction plate member with friction linings thereon against a housing or cover which is rotating at input speed. A solenoid assembly is used to overcome the spring bias and pull the armature and friction plate member away from the housing.Type: GrantFiled: January 7, 2014Date of Patent: October 4, 2016Assignee: BorgWarner Inc.Inventor: Shiwei Qin
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Publication number: 20160281797Abstract: Buckling spring member, particularly for use with a friction clutch mechanism for dual mode water pumps. The buckling spring member is made from a thin piece of a metal material and has a circular configuration. The center portion of the spring member is concave with a plurality of openings and spokes. The openings are preferably heart-shaped. The inner and outer rings are substantially planar and provide rigidity. The friction clutch mechanism and buckling spring mechanism are preferably used for dual mode coolant pumps with two modes of operation, namely an electric motor operation and a mechanical pulley-driven operation.Type: ApplicationFiled: November 4, 2013Publication date: September 29, 2016Inventor: Shiwei QIN
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Patent number: 9453571Abstract: A pulley member, particularly for an electromagnetically controlled friction clutch in an accessory drive assembly. The pulley member has two mating metal cup members bonded together with a central hub member. Through-hole slots or openings are provided in each of the cup members to provide a break in magnetic flux. A non-magnetic insert member is positioned between the cup members covering the through-holes and sealing them from contamination from environmental factors. The pulley member can be used with vehicle engine accessories such as water pumps and cooling fans.Type: GrantFiled: January 7, 2014Date of Patent: September 27, 2016Assignee: BorgWarner Inc.Inventors: Shiwei Qin, James Ignatovich
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Patent number: 9447826Abstract: A fail-safe friction clutch assembly for a vehicle accessory, particularly to drive a vehicle cooling pump or cooling fan. The friction clutch assembly includes a friction plate member connected to a central rotatable shaft member used for operating the vehicle accessory. A pair of friction lining members arc positioned on opposite sides of the friction plate member. An armature member is spring biased to axially force the friction plate member and friction lining member against a housing or cover which is rotating at input speed. A solenoid assembly is used to overcome the spring bias and pull the armature and friction plate member away from the housing.Type: GrantFiled: January 7, 2014Date of Patent: September 20, 2016Assignee: BorgWarner Inc.Inventor: Shiwei Qin
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Patent number: 9279460Abstract: A friction clutch assembly for a vehicle accessory, particularly to drive a vehicle cooling pump, and more particularly as part of a dual mode drive for a cooling pump, together with an electric motor. The friction clutch assembly includes a friction plate member connected to a central rotatable shaft member used for operating the vehicle accessory. A biased armature member is adapted to force a friction plate member with friction linings thereon against a housing or cover which is rotating at input speed. A solenoid assembly is used to overcome the spring bias and pull the armature and friction plate member away from the housing.Type: GrantFiled: January 7, 2014Date of Patent: March 8, 2016Assignee: BorgWarner Inc.Inventor: Shiwei Qin
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Publication number: 20160040725Abstract: A fail-safe friction clutch assembly for a vehicle accessory, particularly to drive a vehicle cooling pump, and more particularly as part of a dual mode drive for a cooling pump, together with an electric motor. The friction clutch assembly includes a friction plate member connected to a central rotatable shaft member used for operating the vehicle accessory. A pair of friction lining members are positioned on opposite sides of the friction plate member. An armature member is spring biased to axially force the friction plate member and friction lining member against a housing or cover which is rotating at input speed. A solenoid assembly is used to overcome the spring bias and pull the armature and friction plate member away from the housing.Type: ApplicationFiled: October 19, 2015Publication date: February 11, 2016Inventor: Shiwei Qin