Patents by Inventor Chris Cheng
Chris Cheng 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: 11968591Abstract: In a method of maintenance of a location fingerprint database for an area, signal measurement data is collected together with motion sensor data from each of a plurality of portable devices transiting a portion of the area of the location fingerprint database. The motion sensor data is collected by a sensor assembly in each of the plurality of portable devices. Offline non-causal processing is used to process the collected motion sensor data into reference positions associated with the portion of the area. The collected signal measurement data is employed together with the reference positions to update the location fingerprint database.Type: GrantFiled: January 7, 2020Date of Patent: April 23, 2024Inventors: Jacques Georgy, Chris Goodall, Gennadii Berkovich, Abdelrahman Ali, Zhengrong Cheng, Salah Abdelnaby
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Publication number: 20240093556Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. Each of the plurality of cutters has a substrate, an ultra-hard layer, an inclined surface on the top of the ultra-hard layer, wherein the inclined surface slants downward from a cutting edge to a trailing edge. The cutter can improve cutting efficiency and service life.Type: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Jiaqing YU, Chris Cheng, Xu Wang, Ming Yi, Chi Ma
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Patent number: 11879296Abstract: The force modulation system for a drill bit includes a cutter, a blade cap, a cap retention device, and a first force member. The cutter or cutters fit in the blade cap, and the blade cap fits to the drill bit. The cap retention device exerts a cap retention force in a first direction. The first force member exerts a first force in a second direction. The cutting profile of the force modulation system is now variable in more than one direction so as to avoid excessive forces from more than one direction for each cutter on the blade cap. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction and a third force member to exert a third force in an opposite second direction.Type: GrantFiled: September 25, 2022Date of Patent: January 23, 2024Assignees: CNPC USA Corporation, Beijing Huamei, Inc. CNPCInventors: Ming Zhang, Chris Cheng, Jiaqing Yu, Qi Peng, Xiaohua Ke
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Patent number: 11808090Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that the cutting profile of the force modulation system is now variable in the second direction, according to the first force. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member.Type: GrantFiled: September 25, 2022Date of Patent: November 7, 2023Assignees: CNPC USA Corporation, Beijing Huamei Inc. CNPCInventors: Ming Zhang, Chris Cheng, Jiaqing Yu, Xiongwen Yang
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Patent number: 11794290Abstract: The method for forming cutters includes applying a protective layer on an O-ring so as to form a protected O-ring. The protected O-ring is placed around a cutter body having a substrate section and diamond section with a metallic binder. The method includes inserting the cutter body into the pod cavity and leaching the metallic binder through an end portion of the diamond section for at least one day at 60 degrees Celsius or higher so as to form a polycrystalline diamond compact cutter from the cutter body. The protected O-ring seals the substrate section during the step of leaching. The step of leaching forms an exposed O-ring from the protected O-ring with a hardness reduction and a modulus reduction that identifies a time window for maintaining a sealing force to protect the substrate, while achieving the target profile of the diamond table for a high quality and reliable cutter.Type: GrantFiled: January 24, 2021Date of Patent: October 24, 2023Assignees: CNPC USA Corporation, Beijing Huamei, Inc.Inventors: Jiaxiang Ren, Chris Cheng
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Patent number: 11748098Abstract: A processor is provided with a register file comprising a plurality of vector registers, and an execution core coupled to the register file, where the execution core is configured to execute a set of checksum instructions with a first checksum instruction to specify a first vector operand, a second vector operand, and a result vector operand, where the first vector operand is in a first vector register of the plurality of vector registers, the second vector operand is in a second register of the plurality of vector registers, and the result vector operand is to be written to a third vector register of the plurality of vector registers, and to execute the first checksum instruction, the execution core is configured to accumulate bytes from the first vector operand and the second vector operand into a first portion of the result vector operand and add the accumulated bytes from the first vector operand and the second vector operand to a second portion of the result vector operand to generate the second portionType: GrantFiled: May 5, 2021Date of Patent: September 5, 2023Assignee: Apple Inc.Inventors: Ali Sazegari, Chris Cheng-Chieh Lee
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Patent number: 11702891Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member made of a first woven material. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that a cutting profile of the force modulation system is variable. There can also be a second force member of a second woven material to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member, including the first woven material and the second woven material being the same material.Type: GrantFiled: July 19, 2021Date of Patent: July 18, 2023Assignees: CNPC USA Corporation, Beijing Huamei Inc. CNPCInventors: Lei Zhao, Ming Zhang, Chris Cheng, Jiaxiang Ren, Chengxi Li
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Publication number: 20230015607Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that the cutting profile of the force modulation system is now variable in the second direction, according to the first force. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member.Type: ApplicationFiled: September 25, 2022Publication date: January 19, 2023Inventors: Ming ZHANG, Chris CHENG, Jiaqing YU, Xiongwen YANG
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Publication number: 20230015380Abstract: The force modulation system for a drill bit includes a cutter, a blade cap, a cap retention device, and a first force member. The cutter or cutters fit in the blade cap, and the blade cap fits to the drill bit. The cap retention device exerts a cap retention force in a first direction. The first force member exerts a first force in a second direction. The cutting profile of the force modulation system is now variable in more than one direction so as to avoid excessive forces from more than one direction for each cutter on the blade cap. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction and a third force member to exert a third force in an opposite second direction.Type: ApplicationFiled: September 25, 2022Publication date: January 19, 2023Inventors: Ming ZHANG, Chris CHENG, Jiaqing YU, Qi PENG, Xiaohua KE
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Patent number: 11499377Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that the cutting profile of the force modulation system is now variable in the second direction, according to the first force. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member.Type: GrantFiled: November 21, 2020Date of Patent: November 15, 2022Assignees: CNPC USA Corporation, Belling Huamel Inc CNPCInventors: Ming Zhang, Chris Cheng, Jiaqing Yu, Xiongwen Yang
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Patent number: 11499378Abstract: The force modulation system for a drill bit includes a cutter, a blade cap, a cap retention device, and a first force member. The cutter or cutters fit in the blade cap, and the blade cap fits to the drill bit. The cap retention device exerts a cap retention force in a first direction. The first force member exerts a first force in a second direction. The cutting profile of the force modulation system is now variable in more than one direction so as to avoid excessive forces from more than one direction for each cutter on the blade cap. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction and a third force member to exert a third force in an opposite second direction.Type: GrantFiled: November 21, 2020Date of Patent: November 15, 2022Assignees: CNPC USA Corporation, Beijing Huamei Inc CNPCInventors: Ming Zhang, Chris Cheng, Jiaqing Yu, Qi Peng, Xiaohua Ke
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Publication number: 20220357947Abstract: A processor is provided with a register file comprising a plurality of vector registers, and an execution core coupled to the register file, where the execution core is configured to execute a set of checksum instructions with a first checksum instruction to specify a first vector operand, a second vector operand, and a result vector operand, where the first vector operand is in a first vector register of the plurality of vector registers, the second vector operand is in a second register of the plurality of vector registers, and the result vector operand is to be written to a third vector register of the plurality of vector registers, and to execute the first checksum instruction, the execution core is configured to accumulate bytes from the first vector operand and the second vector operand into a first portion of the result vector operand and add the accumulated bytes from the first vector operand and the second vector operand to a second portion of the result vector operand to generate the second portionType: ApplicationFiled: May 5, 2021Publication date: November 10, 2022Inventors: Ali Sazegari, Chris Cheng-Chieh Lee
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Patent number: 11401749Abstract: A cutting element comprises a cylindrical substrate, a table bonded to the substrate, a working surface on the top of the table, and a plurality of dimples on the working surface. The table is made of super-abrasive material. The super-abrasive material can be PCD. Surface patterns of the table can reduce contact friction between the rock and the cutting element. Therefore, heat on the table can be reduced and thermal damage to the table is decreased. This results in improved cutting element service life.Type: GrantFiled: June 30, 2020Date of Patent: August 2, 2022Assignees: CNPC USA CORPORATION, Beijing Huamei Inc.Inventors: Chris Cheng, Jiaqing Yu, Jianhua Guo, Jie Li, Xihui Hu, Yonghong Wang
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Publication number: 20220234151Abstract: The method for forming cutters includes applying a protective layer on an O-ring so as to form a protected O-ring. The protected O-ring is placed around a cutter body having a substrate section and diamond section with a metallic binder. The method includes inserting the cutter body into the pod cavity and leaching the metallic binder through an end portion of the diamond section for at least one day at 60 degrees Celsius or higher so as to form a polycrystalline diamond compact cutter from the cutter body. The protected O-ring seals the substrate section during the step of leaching. The step of leaching forms an exposed O-ring from the protected O-ring with a hardness reduction and a modulus reduction that identifies a time window for maintaining a sealing force to protect the substrate, while achieving the target profile of the diamond table for a high quality and reliable cutter.Type: ApplicationFiled: January 24, 2021Publication date: July 28, 2022Inventors: Jiaxiang REN, Chris CHENG
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Patent number: 11365589Abstract: A cutting element comprising a cylindrical substrate; a table bonded to the cylindrical substrate; at least one tooth with a reduced projected cutting area on a periphery of the table; and a plurality of undulating cutting ridges on a top of the table. The table can have a working surface and at least one lateral surface, and a chamfer formed therebetween. The working surface can be a non-planar working surface. For a given weight on the bit, the cutter will sink into the rock deeper which can lead to better stability and more effective rock removal.Type: GrantFiled: July 1, 2020Date of Patent: June 21, 2022Assignees: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Chris Cheng, Jiaqing Yu, Xu Wang, Xiongwen Yang, Yu Liu
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Publication number: 20220162915Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member made of a first woven material. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that a cutting profile of the force modulation system is variable. There can also be a second force member of a second woven material to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member, including the first woven material and the second woven material being the same material.Type: ApplicationFiled: July 19, 2021Publication date: May 26, 2022Inventors: Lei ZHAO, Ming ZHANG, Chris CHENG, Jiaxiang REN, Chengxi LI
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Publication number: 20220162914Abstract: The force modulation system for a drill bit includes a cutter, a blade cap, a cap retention device, and a first force member. The cutter or cutters fit in the blade cap, and the blade cap fits to the drill bit. The cap retention device exerts a cap retention force in a first direction. The first force member exerts a first force in a second direction. The cutting profile of the force modulation system is now variable in more than one direction so as to avoid excessive forces from more than one direction for each cutter on the blade cap. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction and a third force member to exert a third force in an opposite second direction.Type: ApplicationFiled: November 21, 2020Publication date: May 26, 2022Inventors: Ming ZHANG, Chris CHENG, Jiaqing YU, Qi PENG, Xiaohua KE
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Publication number: 20220162913Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that the cutting profile of the force modulation system is now variable in the second direction, according to the first force. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member.Type: ApplicationFiled: November 21, 2020Publication date: May 26, 2022Inventors: Ming ZHANG, Chris CHENG, Jiaqing YU, Xiongwen YANG
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Publication number: 20220003046Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. Each of the plurality of cutters has a substrate, an ultra-hard layer, an inclined surface on the top of the ultra-hard layer, wherein the inclined surface slants downward from a cutting edge to a trailing edge. The cutter can improve cutting efficiency and service life.Type: ApplicationFiled: May 26, 2021Publication date: January 6, 2022Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Jiaqing YU, Chris Cheng, Xu Wang, Ming Yi, Chi Ma
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Publication number: 20210370419Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. In an embodiment, the plurality of cutters comprise a substrate, an ultra-hard layer, a concave surface on the top of the ultra-hard layer, wherein the concave surface comprises a plurality of planar and curved surfaces.Type: ApplicationFiled: May 26, 2021Publication date: December 2, 2021Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Jiaqing YU, Chris Cheng, Ning Li, David He, Kevin Waddell, Xu Wang, Chi Ma, Xiongwen Yang