Patents by Inventor Qingyu Meng
Qingyu Meng 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: 11744359Abstract: A pneumatic lifting table frame includes a transverse beam, at least one column, a pressure sensor that detects a load of the lifting table frame, a controller configured to receive a signal from the pressure sensor, and an adjustable gas spring assembly configured to drive the column to be lifted or lowered. The adjustable gas spring assembly includes an adjustable gas spring body, a gas reservoir, a piston rod assembly, and a drive unit. The adjustable gas spring body is connected to the gas reservoir via a gas pipe. The controller is configured to control the drive unit, the adjustable gas spring body (401) is disposed in one of the column, and the drive unit drives the piston rod assembly to carry out a piston motion in the gas reservoir.Type: GrantFiled: December 1, 2020Date of Patent: September 5, 2023Assignee: NINGBO HEALTHKEY MOTION TECHNOLOGY CO., LTDInventors: Renchang Hu, Qingyu Meng, Donghang Zhang, Yujie Cen
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Publication number: 20220378193Abstract: A pneumatic lifting table frame includes a transverse beam, at least one column, a pressure sensor that detects a load of the lifting table frame, a controller configured to receive a signal from the pressure sensor, and an adjustable gas spring assembly configured to drive the column to be lifted or lowered. The adjustable gas spring assembly includes an adjustable gas spring body, a gas reservoir, a piston rod assembly, and a drive unit. The adjustable gas spring body is connected to the gas reservoir via a gas pipe. The controller is configured to control the drive unit, the adjustable gas spring body (401) is disposed in one of the column, and the drive unit drives the piston rod assembly to carry out a piston motion in the gas reservoir.Type: ApplicationFiled: December 1, 2020Publication date: December 1, 2022Applicant: NINGBO HEAL THKEY MOTION TECHNOLOGY CO., LTDInventors: Renchang HU, Qingyu MENG, Donghang ZHANG, Yujie CEN
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Publication number: 20220349035Abstract: Disclosed is a steel for an alloy structure, the chemical elements of the steel being, in percentage by mass: 0.35-0.45% of C, 0.27-0.35% of Si, 0.6-0.8% of Mn, 0.015-0.05% of Al, 0.06-0.1% of V, 0.2-1.0% of Zr, 0.001-0.005% of Mg, 0.025% or less of P, 0.015% or less of S, 0.005% or less of N, 0.001% or less of 0, the balance being Fe and other inevitable impurities. In addition, also disclosed is a manufacturing method for the steel for an alloy structure, the method comprising steps of: (1) smelting, refining, and casting; (2) blooming and cogging; (3) secondary hot rolling to form a product; and (4) heat treatment including quenching and tempering. The steel for an alloy structure is designed by adding trace alloy elements, the steel for an alloy structure is further strengthened and toughened, and the manufacturing cost is low.Type: ApplicationFiled: September 27, 2020Publication date: November 3, 2022Inventors: Hongguang ZHENG, Xiangchun LIU, Junjiang LIU, Ruiyin ZHAI, Genjie WAN, Yangqing XIA, Qingyu MENG
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Patent number: 11298744Abstract: Disclosed are a continuous-curvature convex roll for continuously casting a bloom, and a manufacturing method therefore. An outer contour curve of a working portion of a body of the continuous-curvature convex roll contains a first straight-line segment (AB), a first transition curve segment (BC), an intermediate straight-line segment (CD), a second transition curve segment (DE) and a second straight-line segment (EF). The BC, the AB, and the CD have continuous first-order derivatives, continuous second-order derivatives, and continuous curvatures, thus forming a first transition curve with a continuous curvature. The BC and the DE are mirror-symmetrical. The continuous-curvature convex roll can uniformly deform a blank cast in a deformation area, thereby reducing cracks. The transition curve of the convex roll can be reduced, thereby being capable of further reducing a rolling pressure and the withdrawal resistance.Type: GrantFiled: August 16, 2019Date of Patent: April 12, 2022Assignee: BAOSHAN IRON & STEEL CO., LTD.Inventors: Rongjun Xu, Junjiang Liu, Genjie Wan, Chengbin Li, Xiangchun Liu, Qingyu Meng
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Patent number: 11207729Abstract: Disclosed is a light reduction method for continuous casting of a bloom plain-barrelled roll-roll combination. The method comprises: firstly obtaining three-dimensional temperature field profile, a two-phase region, solid-phase region thickness, and solid-phase fraction of a billet, determining positions of start and end rolls of the reduction, and setting a reduction amount of each tensioner roll according to the volume shrinkage of the billet; in an interval fs=0.9-1.0 of the solid-phase fraction of the billet, performing a heavy reduction working mode; and in an interval fs=0.25-0.80 of the solid-phase fraction of the billet, performing a light reduction working mode.Type: GrantFiled: August 16, 2019Date of Patent: December 28, 2021Assignee: BAOSHAN IRON & STEEL CO., LTD.Inventors: Rongjun Xu, Junjiang Liu, Genjie Wan, Chengbin Li, Xiangchun Liu, Qingyu Meng
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Patent number: 11208124Abstract: The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation meType: GrantFiled: May 18, 2020Date of Patent: December 28, 2021Assignee: CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD. (CN)Inventors: Zhen Wang, Qingyu Meng, Lingjun Wang, Xiaochao Dai, Xin Zhang, Fengzhou Wang, Jiansong Huang, Fangliang Zhang, Shiwei Huang
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Publication number: 20210331722Abstract: The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation meType: ApplicationFiled: May 18, 2020Publication date: October 28, 2021Inventors: Zhen WANG, Qingyu MENG, Lingjun WANG, Xiaochao DAI, Xin ZHANG, Fengzhou WANG, Jiansong HUANG, Fangliang ZHANG, Shiwei HUANG
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Publication number: 20210323052Abstract: Disclosed is a light reduction method for continuous casting of a bloom plain-barrelled roll-roll combination. The method comprises: firstly obtaining three-dimensional temperature field profile, a two-phase region, solid-phase region thickness, and solid-phase fraction of a billet, determining positions of start and end rolls of the reduction, and setting a reduction amount of each tensioner roll according to the volume shrinkage of the billet; in an interval fs=0.9-1.0 of the solid-phase fraction of the billet, performing a heavy reduction working mode; and in an interval fs=0.25-0.80 of the solid-phase fraction of the billet, performing a light reduction working mode.Type: ApplicationFiled: August 16, 2019Publication date: October 21, 2021Applicant: BAOSHAN IRON & STEEL CO., LTD.Inventors: Rongjun XU, Junjiang LIU, Genjie WAN, Chengbin LI, Xiangchun LIU, Qingyu MENG
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Publication number: 20210316358Abstract: Disclosed are a continuous-curvature convex roll for continuously casting a bloom, and a manufacturing method therefore, belonging to the field of metal casting. An outer contour curve of a working portion of a body of the continuous-curvature convex roll consists of a first straight-line segment (AB), a first transition curve segment (BC), a intermediate straight-line segment (CD), a second transition curve segment (DE) and a second straight-line segment (EF). The first transition curve segment (BC), the first straight-line segment (AB), and the intermediate straight-line segment (CD) have continuous first-order derivatives, continuous second-order derivatives, and continuous curvatures, thus forming a first transition curve with a continuous curvature. The first transition curve segment (BC) and the second transition curve segment (DE) are mirror-symmetrical.Type: ApplicationFiled: August 16, 2019Publication date: October 14, 2021Applicant: BAOSHAN IRON & STEEL CO., LTD.Inventors: Rongjun XU, Junjiang LIU, Genjie WAN, Chengbin LI, Xiangchun LIU, Qingyu MENG
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Patent number: 8094428Abstract: An apparatus for increasing electric conductivity to a wafer substrate, when exposed to electron beam irradiation, is disclosed. More specifically, a methodology to breakdown the insulating layer on wafer backside is provided to significantly reduce the damage on the wafer backside while proceeding with the grounding process.Type: GrantFiled: October 27, 2008Date of Patent: January 10, 2012Assignee: Hermes-Microvision, Inc.Inventors: Yi Xiang Wang, Juying Dou, Kenichi Kanai, Jun Jiang, Zheng Fan, Qingyu Meng, Jay Chen
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Publication number: 20100103583Abstract: An apparatus for increasing electric conductivity to a wafer substrate, when exposed to electron beam irradiation, is disclosed. More specifically, a methodology to breakdown the insulating layer on wafer backside is provided to significantly reduce the damage on the wafer backside while proceeding with the grounding process.Type: ApplicationFiled: October 27, 2008Publication date: April 29, 2010Applicant: HERMES-MICROVISION, INC.Inventors: YI XIANG WANG, JUYING DOU, JUN JIANT, ZHENG FAN, QINGYU MENG