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: 10907416Abstract: The present disclosure provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth comprises a base, a table connected to a top of the base. a concave shaped surface on the center portion of a top surface of the table; three cutting ridges with each extending from a vertex of the concave shaped surface to an outer edge of the top surface; three cutting bevels with each locating between two cutting ridges of the three cutting ridges; each of the three cutting ridges has a fillet.Type: GrantFiled: July 13, 2020Date of Patent: February 2, 2021Assignees: CNPC USA Corporation, China National Petroleum Corporation, Beijing Huamei, Inc.Inventors: Chris Cheng, Hongtao Liu, Javier Davila, Xu Wang, Yuxin Wang, Zhenzhou Yang, Xiongwen Yang
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Publication number: 20210002961Abstract: 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: ApplicationFiled: June 30, 2020Publication date: January 7, 2021Applicants: 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: 20210002962Abstract: 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: ApplicationFiled: July 1, 2020Publication date: January 7, 2021Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Chris Cheng, Jiaqing Yu, Xu Wang, Xiongwen Yang, Yu Liu
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Patent number: 10830020Abstract: The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, a coating on the insert, and a cover fitted over the insert. The coating on the insert provides erosion resistance and a smooth surface compatible with high velocity fluid flow required to achieve the strength and frequency of desired high strength and low frequency pressure pulses.Type: GrantFiled: October 21, 2019Date of Patent: November 10, 2020Assignees: CNPC USA Corporation, Beijing Huamei Inc.Inventors: Jianhui Xu, Ming Zhang, Chris Cheng, Yu Liu, Xiongwen Yang
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Publication number: 20200340303Abstract: The present disclosure provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth comprises a base, a table connected to a top of the base. a concave shaped surface on the center portion of a top surface of the table; three cutting ridges with each extending from a vertex of the concave shaped surface to an outer edge of the top surface; three cutting bevels with each locating between two cutting ridges of the three cutting ridges; each of the three cutting ridges has a fillet.Type: ApplicationFiled: July 13, 2020Publication date: October 29, 2020Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Chris CHENG, Hongtao LIU, Javier DAVILA, Xu WANG, Yuxin WANG, Zhenzhou YANG, Xiongwen YANG
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Patent number: 10769065Abstract: Systems, apparatuses, and methods for efficiently moving data for storage and processing a compression unit within a processor includes multiple hardware lanes, selects two or more input words to compress, and for assigns them to two or more of the multiple hardware lanes. As each assigned input word is processed, each word is compared to an entry of a plurality of entries of a table. If it is determined that each of the assigned input words indexes the same entry of the table, the hardware lane with the oldest input word generates a single read request for the table entry and the hardware lane with the youngest input word generates a single write request for updating the table entry upon completing compression. Each hardware lane generates a compressed packet based on its assigned input word.Type: GrantFiled: June 10, 2019Date of Patent: September 8, 2020Assignee: Apple Inc.Inventors: Ali Sazegari, Charles E. Tucker, Jeffry E. Gonion, Gerard R. Williams, III, Chris Cheng-Chieh Lee
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Patent number: 10753167Abstract: The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.Type: GrantFiled: September 27, 2019Date of Patent: August 25, 2020Assignees: CNPC USA Corporation, Beijing Huamei, Inc.Inventors: Ming Zhang, Chris Cheng, Dengxiang Bai, Xiongwen Yang, Kuangsheng Zhang, Yuming Wang, Peiyuan Hu
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Publication number: 20200048993Abstract: The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, a coating on the insert, and a cover fitted over the insert. The coating on the insert provides erosion resistance and a smooth surface compatible with high velocity fluid flow required to achieve the strength and frequency of desired high strength and low frequency pressure pulses.Type: ApplicationFiled: October 21, 2019Publication date: February 13, 2020Inventors: Jianhui XU, Ming ZHANG, Chris CHENG, Yu LIU, Xiongwen YANG
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Publication number: 20200024922Abstract: The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.Type: ApplicationFiled: September 27, 2019Publication date: January 23, 2020Inventors: Ming ZHANG, Chris CHENG, Dengxiang BAI, Xiongwen YANG, Kuangsheng ZHANG, Yuming WANG, Peiyuan HU
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Patent number: 10450819Abstract: The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.Type: GrantFiled: November 21, 2017Date of Patent: October 22, 2019Assignees: CNPC USA Corp., Beijing Huamei, Inc.Inventors: Ming Zhang, Chris Cheng, Dengxiang Bai, Xiongwen Yang, Kuangsheng Zhang, Yuming Wang, Peiyuan Hu
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Publication number: 20190294541Abstract: Systems, apparatuses, and methods for efficiently moving data for storage and processing are described. In various embodiments, a compression unit within a processor includes multiple hardware lanes, selects two or more input words to compress, and for assigns them to two or more of the multiple hardware lanes. As each assigned input word is processed, each word is compared to an entry of a plurality of entries of a table. If it is determined that each of the assigned input words indexes the same entry of the table, the hardware lane with the oldest input word generates a single read request for the table entry and the hardware lane with the youngest input word generates a single write request for updating the table entry upon completing compression. Each hardware lane generates a compressed packet based on its assigned input word.Type: ApplicationFiled: June 10, 2019Publication date: September 26, 2019Inventors: Ali Sazegari, Charles E. Tucker, Jeffry E. Gonion, Gerard R. Williams, III, Chris Cheng-Chieh Lee
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Patent number: 10331558Abstract: Systems, apparatuses, and methods for efficiently moving data for storage and processing. A compression unit within a processor includes multiple hardware lanes, selects two or more input words to compress, and for assigns them to two or more of the multiple hardware lanes. As each assigned input word is processed, each word is compared to an entry of a plurality of entries of a table. If it is determined that each of the assigned input words indexes the same entry of the table, the hardware lane with the oldest input word generates a single read request for the table entry and the hardware lane with the youngest input word generates a single write request for updating the table entry upon completing compression. Each hardware lane generates a compressed packet based on its assigned input word.Type: GrantFiled: July 28, 2017Date of Patent: June 25, 2019Assignee: Apple Inc.Inventors: Ali Sazegari, Charles E. Tucker, Jeffry E. Gonion, Gerard R. Williams, III, Chris Cheng-Chieh Lee
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Publication number: 20190153798Abstract: The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.Type: ApplicationFiled: November 21, 2017Publication date: May 23, 2019Inventors: Ming Zhang, Chris Cheng, Dengxiang Bai, Xiongwen Yang, Kuangsheng Zhang, Yuming Wang, Peiyuan Hu
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Patent number: 10259101Abstract: Polycrystalline compacts include an interface between first and second volumes of a body of inter-bonded grains of hard material. The first volume is at least substantially free of interstitial material, and the second volume includes interstitial material in interstitial spaces between surfaces of the inter-bonded grains of hard material. The interface between the first and second volumes is configured, located and oriented such that cracks originating in the compact during use of the compacts and propagating along the interface generally toward a central axis of the compacts will propagate generally toward a back surface and away from a front cutting face of the compacts at an acute angle or angles. Methods of forming polycrystalline compacts involve the formation of such an interface within the compacts.Type: GrantFiled: December 21, 2016Date of Patent: April 16, 2019Assignee: Baker Hughes IncorporatedInventor: Xiaomin Chris Cheng
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Publication number: 20190034333Abstract: Systems, apparatuses, and methods for efficiently moving data for storage and processing are described. In various embodiments, a compression unit within a processor includes multiple hardware lanes, selects two or more input words to compress, and for assigns them to two or more of the multiple hardware lanes. As each assigned input word is processed, each word is compared to an entry of a plurality of entries of a table. If it is determined that each of the assigned input words indexes the same entry of the table, the hardware lane with the oldest input word generates a single read request for the table entry and the hardware lane with the youngest input word generates a single write request for updating the table entry upon completing compression. Each hardware lane generates a compressed packet based on its assigned input word.Type: ApplicationFiled: July 28, 2017Publication date: January 31, 2019Inventors: Ali Sazegari, Charles E. Tucker, Jeffry E. Gonion, Gerard R. Williams, III, Chris Cheng-Chieh Lee
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Patent number: 10062142Abstract: Data transfer techniques include transferring display surface data from a memory subsystem into a stutter buffer at a first rate until the stutter buffer is substantially full. The memory interface and/or memory of the memory subsystem may then be placed into a suspend state until the stutter buffer is substantially empty. The display surface data is transferred from the stutter buffer to display logic at a second rate even when the memory subsystem is in a suspend state. The second rate, which is typically the rendering rate of the display, is substantially slower than the rate at which data is transferred into the stutter buffer.Type: GrantFiled: December 31, 2012Date of Patent: August 28, 2018Assignee: NVIDIA CORPORATIONInventors: Rupesh Shah, Tyvis Cheung, Thomas Edward Dewey, Chris Cheng, Franciscus Sijstermans
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Patent number: 9963940Abstract: A method of forming an earth-boring tool includes introducing metal into a die, rotating the die to generate centrifugal forces on the metal, and cooling the metal in the rotating die. A rotary drill bit may include a unitary, centrifugally cast bit body including an integral shank, at least one blade, and at least one cutting element on the blade. A rotary drill bit or a roller cone may include a first centrifugally cast material and a second centrifugally cast material. Another rotary drill bit includes a bit body comprising a maraging steel alloy. A method of forming a rotary drill bit may include disposing cutting elements on a rotary drill bit comprising maraging steel and aging the rotary drill bit to form at least one intermetallic precipitate phase. Methods of repairing a rotary drill bit include annealing and aging at least a portion of a rotary drill bit.Type: GrantFiled: March 31, 2015Date of Patent: May 8, 2018Assignee: Baker Hughes IncorporatedInventors: Xiaomin Chris Cheng, Eric C. Sullivan, Tu Tien Trinh
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Publication number: 20170100819Abstract: Polycrystalline compacts include an interface between first and second volumes of a body of inter-bonded grains of hard material. The first volume is at least substantially free of interstitial material, and the second volume includes interstitial material in interstitial spaces between surfaces of the inter-bonded grains of hard material. The interface between the first and second volumes is configured, located and oriented such that cracks originating in the compact during use of the compacts and propagating along the interface generally toward a central axis of the compacts will propagate generally toward a back surface and away from a front cutting face of the compacts at an acute angle or angles. Methods of forming polycrystalline compacts involve the formation of such an interface within the compacts.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Inventor: Xiaomin Chris Cheng
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Patent number: 9534450Abstract: Polycrystalline compacts include an interface between first and second volumes of a body of inter-bonded grains of hard material. The first volume is at least substantially free of interstitial material, and the second volume includes interstitial material in interstitial spaces between surfaces of the inter-bonded grains of hard material. The interface between the first and second volumes is configured, located and oriented such that cracks originating in the compact during use of the compacts and propagating along the interface generally toward a central axis of the compacts will propagate generally toward a back surface and away from a front cutting face of the compacts at an acute angle or angles. Methods of forming polycrystalline compacts involve the formation of such an interface within the compacts.Type: GrantFiled: July 22, 2013Date of Patent: January 3, 2017Assignee: Baker Hughes IncorporatedInventor: Xiaomin Chris Cheng
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Patent number: 9356638Abstract: An FM audio receiver can include a mono/stereo detector that causes the audio receiver to output either a monophonic or a stereophonic signal based on a received pilot tone energy. An accurate operation of the receiver, including but not limited to correct decoding of monophonic/stereophonic reception, can be based on the receiver operating with the same rated maximum system deviation (RMSD) as the received signal itself. Aspects of the disclosure describe a system and method of detecting and matching a receiver's RMSD to that of a received signal by demodulating a carrier bearing a an input signal over a first bandwidth, extracting a pilot energy signal from the input signal, and demodulating the carrier bearing the input signal over a second bandwidth if the pilot energy signal is within a pilot energy range for a first predetermined amount of time.Type: GrantFiled: September 14, 2012Date of Patent: May 31, 2016Assignee: Marvell International Ltd.Inventor: Chris Cheng-Chieh Lee