Patents by Inventor Weiwei Liu
Weiwei Liu 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: 20230392488Abstract: A control system includes: a fracturing control device configured to acquire a target fracturing pressure of a fracturing unit, perform loop control on the fracturing unit by taking the target fracturing pressure as a control target, and set a target sand blending pressure for the sand blending unit; a sand blending control device configured to perform loop control on the sand blending unit by taking the target sand blending pressure as a control target.Type: ApplicationFiled: June 6, 2023Publication date: December 7, 2023Inventors: Kaishen LIU, Xiance LI, Shuzhen CUI, Zhuqing MAO, Weiwei LIU, Liang LI, Pengyuan ZHANG, Dawei ZHAO
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Patent number: 11746252Abstract: A composition containing a fluorine-containing polymer having a curable functional group and a pentamethylene diisocyanate-based curing agent. Also disclosed is a coating film obtained from the composition; a laminate including a substrate and a layer obtained from the composition; a back sheet for a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet; and a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet, and a sealant layer formed above the coating film.Type: GrantFiled: November 20, 2018Date of Patent: September 5, 2023Assignees: DAIKIN FLUOROCHEMICALS (CHINA) CO., LTD., DAIKIN INDUSTRIES, LTD.Inventors: Weiwei Liu, Hideto Nakagawa, Masaru Nagato
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Patent number: 11739623Abstract: A control system includes: a fracturing control device configured to acquire a target fracturing pressure of a fracturing unit, perform closed-loop control on the fracturing unit by taking the target fracturing pressure as a control target, and set a target sand blending pressure for the sand blending unit; a sand blending control device configured to perform closed-loop control on the sand blending unit by taking the target sand blending pressure as a control target.Type: GrantFiled: July 26, 2021Date of Patent: August 29, 2023Assignee: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.Inventors: Kaishen Liu, Xiance Li, Shuzhen Cui, Zhuqing Mao, Weiwei Liu, Liang Li, Pengyuan Zhang, Dawei Zhao
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Publication number: 20230257341Abstract: The present application relates to a cis-para-substituted cyclohexylaminonitrile salt represented by formula (I), a preparation method therefor and use thereof as an intermediate for preparing a pesticide, and a method for preparing the pesticide by using same as an intermediate. In the formula, R is C1-10 alkyl or C1-10alkyloxy, C2-10 alkenyl or C2-10 alkenyloxy, C2-10 alkynyl or C2-10 alkynyloxy, C3-10 cycloalkyl or C3-10 cycloalkyloxy, C3-10 heterocycloalkyl or C3-10 heterocycloalkyloxy containing 1-2 heteroatoms selected from O and N.Type: ApplicationFiled: October 14, 2021Publication date: August 17, 2023Applicants: HEBEI LANSHENG BIOTECH CO., LTD, HEBEI LANRUN PLANT PROTECTION TECHNOLOGY CO., LTD, HEBEI GUZHIRUN TECHNOLOGY CO., LTDInventors: Qingchun GUO, Zhengang ZHU, Hongyong GUO, Xin ZHANG, Weiwei LIU
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Publication number: 20230251314Abstract: A motor malfunction monitoring device for monitoring a malfunction of a drive motor, includes: vibration sensors for detecting for one or more components of the drive motor transverse vibration in a direction parallel to a mounting plane of the drive motor and perpendicular to a longitudinal direction of the drive motor or longitudinal vibration in a direction perpendicular to both the mounting plane and the longitudinal direction of the drive motor; a voltage sensor for detecting a voltage of the drive motor or a current sensor for detecting a current of the drive motor; and a data storage storing a database of normal operation spectrums of one of the transverse vibration or the longitudinal vibration during a normal operation of the drive motor, and of one of the voltage or the current during a normal operation of the drive motor.Type: ApplicationFiled: April 19, 2023Publication date: August 10, 2023Inventors: Kaishen LIU, Shouzhe LI, Haiping XING, Zhuqing MAO, Weiwei LIU, Liang LI, Dawei ZHAO, Jun ZHANG
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Publication number: 20230228957Abstract: An optical module includes a housing, a circuit board, a package, and at least one of a light-emitting assembly or a light receiving assembly. The package includes a package body and a soldering member. The package body includes a cavity. An end of the circuit board is inserted into the cavity, and the soldering member is located in a gap between the circuit board and the package body. The light-emitting assembly or the light receiving assembly is located in the cavity and electrically connected to the circuit board. The light-emitting assembly is configured to convert an electrical signal from the circuit board into an optical signal and emit the optical signal to an outside of the optical module, and the light receiving assembly is configured to convert the optical signal from the outside of the light module into an electric signal and transmit the electric signal to the circuit board.Type: ApplicationFiled: March 27, 2023Publication date: July 20, 2023Applicant: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD.Inventors: Qian SHAO, Weiwei LIU, Jianwei YAO
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Patent number: 11692614Abstract: A hollow reducer for high precision control includes a pin wheel housing and two-stage reduction components disposed in the pin wheel housing. A first-stage reduction component includes a driving wheel on a servo motor, a dual gear, and a planet wheel; and a second-stage reduction component includes 2-3 eccentric shafts distributed uniformly, cycloidal gears, a pin, rigid disks, and bearings, wherein two eccentric sections of the eccentric shaft support the cycloidal gears by means of the bearings, shaft extensions on two sides of the eccentric section of the eccentric shaft are supported on the left and right rigid disks by the bearings, and the rigid disks are supported on two sides of the pin wheel housing by the bearings.Type: GrantFiled: November 17, 2021Date of Patent: July 4, 2023Assignee: SUZHOU HUAZHEN INDUSTRY RV REDUCER CO., LTD.Inventor: Weiwei Liu
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Patent number: 11677238Abstract: Embodiments of the present application provide electric power supply methods and electric power supply systems related to the field of electrical energy technology. An electric power supply method includes: acquiring an electrical energy parameter of electrical energy delivered by an upstream power supply system, and determining, based on the electrical energy parameter, whether a preset power supply condition for supplying power to a downstream target power-consuming system is met; determining a target distribution port corresponding to the target power-consuming system from a plurality of preset distribution ports when the preset power supply condition is met; controlling a supply of electric power to the target power-consuming system through the target distribution port.Type: GrantFiled: April 25, 2022Date of Patent: June 13, 2023Assignee: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.Inventors: Weiwei Liu, Kaishen Liu, Shouzhe Li, Zhuqing Mao, Haoliang Sun
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Patent number: 11662384Abstract: The present disclosure relates to a motor malfunction monitoring device, and a drive motor for oilfield operations including: a signal acquisition module configured to acquire operation data of the drive motor, wherein the signal acquisition module comprises a vibration signal acquisition unit and/or an electrical signal acquisition unit, the vibration signal acquisition unit comprises one or more vibration sensors mounted at a component to be detected of the drive motor during use and provided for detecting transverse vibration and/or longitudinal vibration, and/or the electrical signal acquisition unit comprises a voltage sensor and a current sensor for detecting a voltage and a current of the drive motor, respectively; a data storage module storing therein a database of normal operation spectrums created when the drive motor runs normally; and a signal analysis module configured to extract an acquired operation data spectrum of the operation data acquired, compare the acquired operation data spectrum withType: GrantFiled: January 22, 2021Date of Patent: May 30, 2023Assignee: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.Inventors: Kaishen Liu, Shouzhe Li, Haiping Xing, Zhuqing Mao, Weiwei Liu, Liang Li, Dawei Zhao, Jun Zhang
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Publication number: 20230144262Abstract: The present disclosure relates to the technical field of terahertz (THz) wave measurement and relates to a photo-thermo-acoustic mechanism-based power measurement apparatus and measurement method for a terahertz wave at room temperature. The apparatus includes a terahertz wave power modulation component, a photo-thermo-acoustic conversion device, and an acoustic wave measurement component. In the present disclosure, the THz absorbing substance having a photo-thermo-acoustic effect is used as the photo-thermo-acoustic conversion device. A power-modulated terahertz wave is converted into an acoustic wave pulse by means of the photo-thermo-acoustic mechanism. The acoustic wave measurement component measures the acoustic wave pulse. A peak-to-peak value of a pulse of the measured acoustic wave is proportional to the power of the terahertz wave, thereby implementing the fast broadband measurement of the terahertz wave power at room temperature.Type: ApplicationFiled: November 2, 2022Publication date: May 11, 2023Applicant: Nankai UniversityInventors: Weiwei LIU, Tingyuan WANG, Nan ZHANG, Lanjun GUO
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Patent number: 11644085Abstract: A reducer for high precision control includes a pin gear housing and two-stage reduction components disposed therein: a first-stage reduction component including an input shaft, a sun gear and a planet gear; and a second-stage reduction component including 2-3 eccentric shafts distributed uniformly, cycloidal gears, a pin, a left rigid disk and a right rigid disk, and bearings, wherein the cycloidal gears are supported by bearings on two eccentric sections of the eccentric shaft, shaft extensions on two sides of the eccentric section of the eccentric shaft are supported by bearings on the left rigid disk and the right rigid disk, and the left rigid disk and the right rigid disk are supported by bearings in inner holes of two sides of the pin gear housing.Type: GrantFiled: November 17, 2021Date of Patent: May 9, 2023Assignee: SUZHOU HUAZHEN INDUSTRY RV REDUCER CO., LTD.Inventor: Weiwei Liu
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Publication number: 20230119725Abstract: In a fracturing control apparatus, a first chemical agent storage tank is connected with a first delivery pump, and a material outlet of the first delivery pump communicates with a first position of a first fracturing fluid conveying pipeline. An outlet of the first fracturing fluid conveying pipeline communicates with an inlet of a fracturing pump, an outlet of the fracturing pump communicates with an inlet of a second fracturing fluid conveying pipeline, and a first flow detector is arranged at a second position of the second fracturing fluid conveying pipeline. The first delivery pump is connected with a first output interface of a controller, and the first flow detector is connected with a first input interface of the controller. The fracturing control apparatus and the control method of the fracturing control apparatus are used for adding chemical agents into fracturing fluids.Type: ApplicationFiled: December 13, 2022Publication date: April 20, 2023Inventors: Kai WANG, Weiwei LIU, Peng WANG, Song ZHANG, Pengyuan ZHANG, Zhen HUANG
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Publication number: 20230092705Abstract: An evaluation method and an evaluation device for evaluating a health state of well site equipment, and a storage medium are provided. The evaluation method for evaluating the health state of the well site equipment includes: obtaining operating parameters of a component to be tested of equipment to be tested in at least one dimension, the at least one dimension including an operating data dimension, an environmental data dimension, and a maintenance data dimension; obtaining evaluation values of a health state of the component to be tested in various dimensions based on the operating parameters of the various dimensions; obtaining a comprehensive evaluation value of the health state of the component to be tested based on the evaluation values of the health state of the component to be tested in the various dimensions.Type: ApplicationFiled: May 18, 2022Publication date: March 23, 2023Applicant: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.Inventors: Kaishen LIU, Yuanjie XIE, Shouzhe LI, Zhuqing MAO, Hao YANG, Weiwei LIU, Kai WANG, Shuzhen CUI
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Patent number: 11609195Abstract: An experimentation method for a type I stress intensity factor test considering frost heaving force periodic changes, steps being 1: preparing a specimen, waterjet cutting on the specimen to simulate a non-penetrating rock mass fracture; step 2: vacuum saturating the specimen; step 3: affixing a strain gauge in a non-elastic area at a tip of the specimen; step 4: placing the specimen into a rock mass (1) fracture frost heaving experiment box (5), pressurizing by a pressurizing apparatus (4) balloons on either side of the frost heaving experiment box (5), shutting a valve and removing a pipe, placing the frost heaving experiment box (5) holding the specimen into a water tank, allowing water to immerse the specimen; and step 5: placing the water tank and the frost heaving experiment box (5) holding the specimen together into a high-low temperature alternating experiment box (7) to start a freeze-thaw cycle experiment.Type: GrantFiled: April 21, 2021Date of Patent: March 21, 2023Assignee: Shandong University of Science and TechnologyInventors: Qiang Feng, Zedong Yang, Shuang Zhang, Jichao Jin, Weiwei Liu, Zhe Qin, Tingchun Li
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Publication number: 20230039397Abstract: A method, computer system, and a computer program product for determining locations for seams on a 3D model of an object is provided. The present invention may include training an artificial intelligence model using a set of training data. The present invention may include generating a first model for the object using a shrink wrap method. The present invention may include generating a second model for the object using a decimation method. The present invention may include comparing the object to objects in the set of training data to identify an object in the training data having a similar shape. The present invention may include identifying the object by determining if the object fits in between the first and second models. The present invention may lastly include projecting seams onto a model of the object using the trained artificial intelligence model.Type: ApplicationFiled: August 4, 2021Publication date: February 9, 2023Inventors: Cindy Han Lu, Weiwei Liu, Thai Quoc Tran, Angela Monique LLOYD
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Patent number: 11549349Abstract: In a fracturing control apparatus, a first chemical agent storage tank is connected with a first delivery pump, and a material outlet of the first delivery pump communicates with a first position of a first fracturing fluid conveying pipeline. An outlet of the first fracturing fluid conveying pipeline communicates with an inlet of a fracturing pump, an outlet of the fracturing pump communicates with an inlet of a second fracturing fluid conveying pipeline, and a first flow detector is arranged at a second position of the second fracturing fluid conveying pipeline. The first delivery pump is connected with a first output interface of a controller, and the first flow detector is connected with a first input interface of the controller. The fracturing control apparatus and the control method of the fracturing control apparatus are used for adding chemical agents into fracturing fluids.Type: GrantFiled: May 12, 2022Date of Patent: January 10, 2023Assignee: YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.Inventors: Kai Wang, Weiwei Liu, Peng Wang, Song Zhang, Pengyuan Zhang, Zhen Huang
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Publication number: 20220404563Abstract: The present disclosure discloses an optical module including a circuit board and a light-emitting assembly. In the light-emitting assembly, a wavelength tuning mechanism is formed of a semiconductor optical amplification chip, a silicon optical chip and a semiconductor refrigerator. The semiconductor optical amplification chip may provide a plurality of wavelengths, and a wavelength selection is carried out by an optical filter in the silicon optical chip; a temperature adjustment for the optical filter is achieved by the semiconductor refrigerator, so as to further adjust a performance of the filter for wavelength selection. The above device is provided in a housing to facilitate packaging of the devices.Type: ApplicationFiled: August 22, 2022Publication date: December 22, 2022Applicant: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD.Inventors: Weiwei LIU, Qian SHAO, Liu YANG, Tao WU
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Publication number: 20220405999Abstract: A method, computer system, and a computer program product for projecting a 3D model defined by x, y, z coordinates onto the surface of a 2D image defined by u, v coordinates is provided. The present invention may include receiving a 3D model having a plurality of polygons, wherein certain edges are marked as seams. The present invention may include receiving input from a user, wherein the input comprises painting one or more parts of the 3D model in different colors, wherein the colors correspond with a weight of the area painted. The present invention may include unwrapping, by a processor, a 2D texture from the 3D model using a projection algorithm. The present invention may include generating a rectangular boundary around each island. The present invention may include scaling each island according to a gradient score.Type: ApplicationFiled: June 21, 2021Publication date: December 22, 2022Inventors: Cindy Han Lu, ANGELA MONIQUE LLOYD, Thai Quoc Tran, Weiwei Liu
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Publication number: 20220381715Abstract: An experimentation method for a type I stress intensity factor test considering frost heaving force periodic changes, steps being 1: preparing a specimen, waterjet cutting on the specimen to simulate a non-penetrating rock mass fracture; step 2: vacuum saturating the specimen; step 3: affixing a strain gauge in a non-elastic area at a tip of the specimen; step 4: placing the specimen into a rock mass (1) fracture frost heaving experiment box (5), pressurizing by a pressurizing apparatus (4) balloons on either side of the frost heaving experiment box (5), shutting a valve and removing a pipe, placing the frost heaving experiment box (5) holding the specimen into a water tank, allowing water to immerse the specimen; and step 5: placing the water tank and the frost heaving experiment box (5) holding the specimen together into a high-low temperature alternating experiment box (7) to start a freeze-thaw cycle experiment.Type: ApplicationFiled: April 21, 2021Publication date: December 1, 2022Inventors: Qiang FENG, Zedong YANG, Shuang ZHANG, Jichao JIN, Weiwei LIU, Zhe QIN, Tingchun LI
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Patent number: D979677Type: GrantFiled: June 15, 2021Date of Patent: February 28, 2023Assignee: Shenzhen Lvqi Electronic Commerce Co., Ltd.Inventor: Weiwei Liu