Patents by Inventor Baoyu Wang
Baoyu Wang 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: 20240112283Abstract: The present disclosure provides an ecological governance method based on erosion prevention and control for a gentle slope farmland and relates to the technical field of ecological governance of farmlands. The ecological governance method based on erosion prevention and control for a gentle slope farmland includes the following steps: sampling a gentle slope farmland to investigate erosion thereof; and determining erosion of a gentle slope cultivated land and selecting a corresponding recovery strategy based on a detection result of a sample, a soil quality index (SQI), and a comprehensive vegetation quality index (VQI), where the recovery strategy includes a natural recovery method and a biological-farming comprehensive recovery method; enclosing the gentle slope cultivated land, fallowing the gentle slope cultivated land and reducing tillage; exterminating insect pests and poisonous weeds in the enclosed area; and turning over straws under soil by a cultivator. The growth of poisonous weeds is inhibited.Type: ApplicationFiled: September 21, 2023Publication date: April 4, 2024Inventors: Weiping Yan, Shaofeng Bian, Yongjun Wang, Hongxiang Zhao, Lihua Zhang, Baoyu Chen, Hongjun Wang, Tiehua Cao, Xuanhe Liang, Guobo Tan, Ning Sun, Chen Xu, Fei Li, Xiangmeng Meng, Jinghua Wang, Qingge Wang
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Patent number: 11925956Abstract: Provided is a preparation method for a double-layer working medium target tape with a plasma-enhanced interfacial bonding force for a micro laser thruster. Aiming at the problem that in an existing micro laser thruster, when a working medium is ablated by a laser beam, due to a weak interlayer interfacial bonding force between a transparent film substrate and the coating working medium, sputtering or bulging occurs, which remarkably reduces propulsive performance, a method for treating a surface of a transparent film substrate with a low-temperature plasma is used to increase surface energy of a film and an adhesive force of a working medium layer on a surface of the film, thereby enhancing the interlayer interfacial bonding force. According to the method in the present disclosure, the transparent film substrate is treated with the low-temperature plasma.Type: GrantFiled: October 12, 2022Date of Patent: March 12, 2024Assignee: Space Engineering UniversityInventors: Jifei Ye, Baoyu Xing, Yanji Hong, Sibo Wang, Nanlei Li
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Patent number: 11612919Abstract: Metal plastic forming processes and equipment that provides a flexible skew rolling mill with dual-rotatable-shafts, including a base unit, a guide unit, two rollers, two servo main-shaft systems, a roller distance adjusting mechanism, two tilt angle adjusting mechanisms, a cooling system and a numerical control system.Type: GrantFiled: June 19, 2020Date of Patent: March 28, 2023Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJINGInventors: Baoyu Wang, Longfei Lin, Shuai Wang, Cuiping Yang, Shengqiang Liu, Huibo Zhang
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Publication number: 20220404460Abstract: A sensor calibration method and apparatus, and a storage medium are provided. In the method, multiple scene images and multiple first point clouds of a target scene are acquired by an image sensor and a radar sensor. A second point cloud of the target scene is constructed according to the multiple scene images. A first distance error between the image sensor and radar sensor is determined according to first feature point sets and a second feature point set. A second distance error of the radar sensor is determined according to multiple first feature point sets. A reprojection error of the image sensor is determined according to a first global position of the second feature point set in the global coordinate system and first image positions of pixel points corresponding to the second feature point set in the scene image. The radar sensor and image sensor are calibrated.Type: ApplicationFiled: July 19, 2022Publication date: December 22, 2022Inventors: Yuqian LIU, Shuhan SHEN, Baoyu WANG
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Patent number: 11484924Abstract: The technical field of metal plastic forming processes and equipment, and provides a device and method for forming shaft part by two-roller flexible skew rolling. The device comprises two skew rollers, a guiding plate, two guiding cylinders and an axial pushing device; the skew rollers can do same-direction rotation motion, radial feeding motion and tilt angle adjustment motion; the guiding plate is arranged between the two skew rollers and is used for limiting the radial movement of a blank; the two guiding cylinders are arranged on the two sides of the two skew rollers to limit swing of the blank; and the axial pushing device is arranged at one end of the blank and is used for applying axial pushing force to the blank, and the blank is rolled into a shaft part in a space defined by the skew rollers and the guiding plate.Type: GrantFiled: April 30, 2020Date of Patent: November 1, 2022Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJINGInventors: Baoyu Wang, Longfei Lin, Jinping Liu, Cuiping Yang
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Patent number: 11365329Abstract: A polymer composition for use in a hot melt adhesive comprises at least one semierystalline, low molecular weight (LMW) propylene-based polymer; at least one essentially amorphous, high molecular weight (HMW) propylene-based polymer; and at least one essentially amorphous, LMW propylene-based polymer. A hot melt adhesive composition further contains a tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. The hot melt adhesive is useful for a variety of industrial applications where bonding of low surface energy substrates is encountered, including disposable nonwoven hygienic articles, labeling and other assembly applications.Type: GrantFiled: October 11, 2018Date of Patent: June 21, 2022Assignee: Bostik, Inc.Inventors: Baoyu Wang, Ronald F. Graf, Russell Stuczynski
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Publication number: 20220136558Abstract: A large-scale axle intelligent cross wedge rolling mill for rail transit includes a main transmission device, a memorial arch unit, two worm-gear pressing devices, a roll assembly and two guide devices. The separation sleeves are engaged with the upper slide shaft and the lower slide shaft, respectively. Two lower shaft necks are detachably connected with the left end surface and the right end surface of the lower roller, respectively; two upper shaft necks are detachably connected with the left end surface and the right end surface of the upper roller, respectively, so that the quick disconnection of the upper and lower rollers with the upper and lower shaft necks is able to be achieved, so as to quickly operate and install the roll to meet the requirement of quick mold replacement, thus improving the flexibility of rolling.Type: ApplicationFiled: January 13, 2022Publication date: May 5, 2022Inventors: Zhibing Chu, Baoyu Wang, Zhongkai Ren, Shulin Li, Yugui Li, Xinliang Zhou, Xianan Huang, Junsheng Xu, Jianxin Qin, Yafeng Ji, Jinping Liu
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Publication number: 20200398323Abstract: Metal plastic forming processes and equipment that provides a flexible skew rolling mill with dual-rotatable-shafts, including a base unit, a guide unit, two rollers, two servo main-shaft systems, a roller distance adjusting mechanism, two tilt angle adjusting mechanisms, a cooling system and a numerical control system.Type: ApplicationFiled: June 19, 2020Publication date: December 24, 2020Inventors: Baoyu WANG, Longfei LIN, Shuai WANG, Cuiping YANG, Shengqiang LIU, Huibo ZHANG
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Publication number: 20200346262Abstract: The technical field of metal plastic forming processes and equipment, and provides a device and method for forming shaft part by two-roller flexible skew rolling. The device comprises two skew rollers, a guiding plate, two guiding cylinders and an axial pushing device; the skew rollers can do same-direction rotation motion, radial feeding motion and tilt angle adjustment motion; the guiding plate is arranged between the two skew rollers and is used for limiting the radial movement of a blank; the two guiding cylinders are arranged on the two sides of the two skew rollers to limit swing of the blank; and the axial pushing device is arranged at one end of the blank and is used for applying axial pushing force to the blank, and the blank is rolled into a shaft part in a space defined by the skew rollers and the guiding plate.Type: ApplicationFiled: April 30, 2020Publication date: November 5, 2020Inventors: Baoyu WANG, Longfei LIN, Jinping LIU, Cuiping YANG
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Patent number: 10597563Abstract: A laminate comprises a primary substrate and a secondary substrate mated with the primary substrate through contact with a hot melt adhesive. The hot melt adhesive comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. Particularly preferred applications include nonwoven disposable diaper and feminine sanitary napkin construction, diaper and adult incontinent brief elastic attachment, diaper and napkin core stabilization, diaper backsheet lamination, industrial filter material conversion, and surgical gown and surgical drape assemblies.Type: GrantFiled: January 9, 2019Date of Patent: March 24, 2020Assignee: BOSTIK, INC.Inventors: Baoyu Wang, Kelley Gerschke, Terhi I. Hawkins, Charley Paul, Kimberly E. Secrist
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Publication number: 20190233686Abstract: A laminate comprises a primary substrate and a secondary substrate mated with the primary substrate through contact with a hot melt adhesive. The hot melt adhesive comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. Particularly preferred applications include nonwoven disposable diaper and feminine sanitary napkin construction, diaper and adult incontinent brief elastic attachment, diaper and napkin core stabilization, diaper backsheet lamination, industrial filter material conversion, and surgical gown and surgical drape assemblies.Type: ApplicationFiled: January 9, 2019Publication date: August 1, 2019Inventors: Baoyu Wang, Kelley GERSCHKE, Terhi I. HAWKINS, Charley PAUL, Kimberly E. SECRIST
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Publication number: 20190144719Abstract: A polymer composition for use in a hot melt adhesive comprises at least one semierystalline, low molecular weight (LMW) propylene-based polymer; at least one essentially amorphous, high molecular weight (HMW) propylene-based polymer; and at least one essentially amorphous, LMW propylene-based polymer. A hot melt adhesive composition further contains a tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof The hot melt adhesive is useful for a variety of industrial applications where bonding of low surface energy substrates is encountered, including disposable nonwoven hygienic articles, labeling and other assembly applications.Type: ApplicationFiled: October 11, 2018Publication date: May 16, 2019Inventors: Baoyu WANG, Ronald F. GRAF, Russell STUCZYNSKI
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Patent number: 10279440Abstract: A precision forming method of a high-efficiency and near-net hollow valve blank of an engine is provided, wherein the precision performing is realized by the cross wedge rolling mold, under the rolling the metal tubing for the valve deforms, with a middle part sunken and two ends elongating, the middle part forms a stem part of a hollow valve, the two ends form disk parts to be machined, and the connection sections between the disk parts and the stem part form neck parts having arced concave faces and a frustoconical lateral face in structure, achieving better consistency among the acquired hollow valve blanks. The disk part of each acquired hollow valve preformed blank is machined by the die-forging forming mold that is matched with the disk structure of the manufactured hollow valve, the hollow valve preformed blank is directly placed in the cavities of the die-forging forming mold for forging.Type: GrantFiled: May 11, 2015Date of Patent: May 7, 2019Assignee: HUAIJI DENGYUN AUTO-PARTS (HOLDING) CO., LTD.Inventors: Jinping Liu, Hongchao Ji, Zhenghuan Hu, Baoyu Wang, Tao Zhang, Dongqiang Mo, Huahuan Luo, Ge Sun, Zhengrong Zhang, Wanqi Qiu
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Patent number: 10214665Abstract: A method for making a laminate comprises the steps of applying a hot melt adhesive composition in a molten state to a primary substrate and mating a secondary substrate to the first substrate by contacting the secondary substrate with the adhesive composition. The composition comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. Particularly preferred applications include nonwoven disposable diaper and feminine sanitary napkin construction, diaper and adult incontinent brief elastic attachment, diaper and napkin core stabilization, diaper backsheet lamination, industrial filter material conversion, and surgical gown and surgical drape assemblies.Type: GrantFiled: April 20, 2018Date of Patent: February 26, 2019Assignee: Bostik Inc.Inventors: Baoyu Wang, Kelley Gerschke, Terhi I. Hawkins, Charley Paul, Kimberly E. Secrist
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Publication number: 20180251662Abstract: A method for making a laminate comprises the steps of applying a hot melt adhesive composition in a molten state to a primary substrate and mating a secondary substrate to the first substrate by contacting the secondary substrate with the adhesive composition. The composition comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. Particularly preferred applications include nonwoven disposable diaper and feminine sanitary napkin construction, diaper and adult incontinent brief elastic attachment, diaper and napkin core stabilization, diaper backsheet lamination, industrial filter material conversion, and surgical gown and surgical drape assemblies.Type: ApplicationFiled: April 20, 2018Publication date: September 6, 2018Inventors: Baoyu Wang, Kelley Gerschke, Terhi I. Hawkins, Charley Paul, Kimberly E. Secrist
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Patent number: 10011744Abstract: A hot melt adhesive composition comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. The hot melt composition has low viscosity ranging from 500 mPa·s to 35,000 mPa·s at 177° C. and is useful for a variety of industrial applications where bonding of low surface energy substrates is encountered, including disposable nonwoven hygienic articles, labeling and other assembly applications.Type: GrantFiled: January 13, 2017Date of Patent: July 3, 2018Assignee: Bostik, Inc.Inventors: Baoyu Wang, Kelley Gerschke, Terhi I. Hawkins, Charley Paul, Kimberly E. Secrist
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Publication number: 20180104776Abstract: A precision forming method of a high-efficiency and near-net hollow valve blank of an engine is provided, wherein the precision performing is realized by the cross wedge rolling mold, under the rolling the metal tubing for the valve deforms, with a middle part sunken and two ends elongating, the middle part forms a stem part of a hollow valve, the two ends form disk parts to be machined, and the connection sections between the disk parts and the stem part form neck parts having arced concave faces and a frustoconical lateral face in structure, achieving better consistency among the acquired hollow valve blanks. The disk part of each acquired hollow valve preformed blank is machined by the die-forging forming mold that is matched with the disk structure of the manufactured hollow valve, the hollow valve preformed blank is directly placed in the cavities of the die-forging forming mold for forging.Type: ApplicationFiled: May 11, 2015Publication date: April 19, 2018Inventors: JINPING LIU, HONGCHAO JI, ZHENGHUAN HU, BAOYU WANG, TAO ZHANG, DONGQIANG MO, HUAHUAN LUO, GE SUN, ZHENGRONG ZHANG, WANQI QIU
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Publication number: 20170204306Abstract: A hot melt adhesive composition comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. The hot melt composition has low viscosity ranging from 500 mPa·s to 35,000 mPa·s at 177° C. and is useful for a variety of industrial applications where bonding of low surface energy substrates is encountered, including disposable nonwoven hygienic articles, labeling and other assembly applications.Type: ApplicationFiled: January 13, 2017Publication date: July 20, 2017Inventors: Baoyu Wang, Kelley GERSCHKE, Terhi I. HAWKINS, Charley PAUL, Kimberly E. SECRIST
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Patent number: 9181461Abstract: A hot melt sealant and foam-in-place gasket composition based on a rubber such as ethylene propylene rubber (EPR) and/or ethylene propylene diene rubber (EPDM) and at least one semicrystalline olefinic polymer. The hot melt composition includes the rubber or a blend of rubbers in an amount of 5% to 50% by weight, at least one semicrystalline olefinic polymer in an amount of 5% to 40% by weight, at least one amorphous poly-?-olefin (APAO) polymer in an amount of 0% to 70% by weight, a compatible tackifier in an amount of 0% to 50% by weight, and a plasticizer in an amount of at least 30% by weight. The composition is particularly useful for foamed gasket applications as a replacement for pressure sensitive adhesive (PSA) coated foam tape.Type: GrantFiled: August 17, 2006Date of Patent: November 10, 2015Assignee: Bostik, IncInventor: Baoyu Wang
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Patent number: 8481634Abstract: A hot melt desiccant matrix composition has an organic binder and an absorbent material as components thereof. The organic binder includes about 10% to 80% by weight of a propylene based poly-?-olefin polymer having a melting point or a glass transition temperature less than 180° C., a density in the range of 0.85 to 0.95 g/cc or a blend of poly-?-olefin polymers; about 5% to 70% by weight of a plasticizer having a flash point equal to or greater than 180° C.; about 0% to 50% by weight a compatible tackifier; and a stabilizer in the amount of about 0% to 5% by weight. The absorbent component may be a water/moisture absorbing material, or a VOC absorbing material, or a blend of water/moisture absorbing and VOC absorbing materials. The absorbent material is selected from absorbing materials including, but not limited to, silica gels, activated carbons, silica alumina, calcium sulfate, calcium oxide, natural zeolites and molecular sieves and the mixtures thereof.Type: GrantFiled: September 7, 2007Date of Patent: July 9, 2013Assignee: Bostik, Inc.Inventors: Baoyu Wang, Michael D. Vitrano