Patents by Inventor Yongfeng Wang

Yongfeng 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).

  • Publication number: 20210137337
    Abstract: An autonomous cleaning device is provided. The autonomous cleaning device includes: a device body; and a drive module, a cleaning module and a sensing module, wherein the drive module, the cleaning module and the sensing module are detachably assembled to the device body, respectively.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Inventors: Xing LI, Zitao WANG, Zhijun LI, Yongfeng XIA
  • Patent number: 10994410
    Abstract: A three-degree-of-freedom parallel mechanism with curved sliding pairs includes a fixed platform, a moving platform, and three curved branches disposed between the fixed platform and the moving platform. Each of the curved branches includes a first curved link and a second curved link that share a common arc center. One end of the first curved link is connected to fixed platform by a rotational pair. One end of the second curved link is disposed in a cavity at another end of the first curved link. The second curved link is operative to perform a reciprocating motion along a tangent of an arc of the first curved link. Another end of the second curved link is connected to the moving platform by a ball joint. The axes of the three rotational pairs of the three curved branches coincide with each other and are perpendicular to the fixed platform.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 4, 2021
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Guoru Zhao, Yongfeng Wang
  • Publication number: 20210055035
    Abstract: An air-cooled refrigerator and a control method, a control system and controller for defrosting thereof are provided. The high-temperature air of the air-cooled refrigerator exchanges heat with the evaporator in the air duct and is sent into a refrigerating compartment through the operation of a fan; when the evaporator is gradually frosted, the heat-exchanged air suffers the resistance from the frosts on the evaporator during the flow and the fan slows down. Based on this principle, the fan speed can directly correspond to the frost accumulation mass of the evaporator. The actual frost accumulation mass of the evaporator can be directly determined by determining the fan speed. When the fans peed is decreased to a certain low speed, it means that there is much frost on the evaporator and the defrosting needs to be started timely.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 25, 2021
    Inventors: Chunhua TENG, Yongfeng WANG, Qinghe SHENG, Xiao HAN, Wei REN
  • Publication number: 20210009426
    Abstract: A polycrystalline element includes a table formed of polycrystalline diamond. The table includes a first surface; a second surface spaced apart from the first surface; and at least one side extending between the first surface and the second surface. The table also includes a plurality of extensions also formed of polycrystalline diamond, wherein at least one extension of the plurality of extensions extends away from at least one of the first surface and the at least one side. Optionally, the polycrystalline diamond of at least one extension of the plurality of extensions is contiguous with the polycrystalline diamond of the table. The polycrystalline element may be used in downhole tools for boring and well drilling, machine tools, and bearings.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 14, 2021
    Applicant: SF Diamond Co., Ltd.
    Inventors: Haijang Fang, Weifeng Du, Yongfeng Wang, Dongpeng Zhao
  • Patent number: 10864626
    Abstract: Disclosed is a three-branched six-degree-of-freedom parallel mechanism with curved sliding pairs, which includes a base, a moving platform, and three identical kinetic branches. The kinetic branches are radially and evenly distributed and arranged between the base and the moving platform. Each kinetic branch includes a first curved link assembly, a first motor, and a support link. One end of the support link is hinged to the moving platform. One end of the first curved link assembly is hinged to the support link. The first motor is disposed on the base and is configured for driving the first curved link assembly to rotate, where an arc length of the first curved link assembly is changed as the first curved link assembly is driven to rotate.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 15, 2020
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Guoru Zhao, Yongfeng Wang
  • Publication number: 20200352417
    Abstract: A laryngeal mask airway (LMA) for gastroscopy includes a laryngeal tube for gastroscopy. A drainage tube is fixedly installed on an outer surface of an upper end of the laryngeal tube for gastroscopy. A PC connector is fixedly installed at one end of the drainage tube. A ventilation hole is formed in an outer surface of an upper end of the drainage tube, and a suction hole is formed in an outer surface of a lower end of the laryngeal tube for gastroscopy. An inner cavity and an inflation tube hole are formed inside the laryngeal tube for gastroscopy. The inflation tube hole is disposed under the inner cavity and receives an inflation tube, and a single-cavity connector is fixedly installed at one end of the inflation tube. The LMA absorbs secretions from a patient's esophagus to minimize coughing during a gastroscopy, thereby reducing patient discomfort and pain.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 12, 2020
    Inventors: Penghong Xu, Yongfeng Wang, Hongtao Wanyan
  • Publication number: 20200316770
    Abstract: The present invention provides a three-degree-of-freedom parallel mechanism, including a fixed platform, a movable platform, and three kinematic chains, where at least one of the three kinematic chains is a flexible chain; and the flexible chain includes a first connecting rod, a second connecting rod, and an axis-variable revolute pair, the axis-variable revolute pair includes a fixed member, a movable member, and a spherical pair, one end of the fixed member is fastened on the fixed platform, the other end of the fixed member fits and abuts against an inclined surface of the movable member, the spherical pair is accommodated in the fixed member, a spherical hinge connecting rod of the spherical pair penetrates the movable member, the first connecting rod is rotatably connected to the spherical hinge connecting rod and the second connecting rod, and the second connecting rod is spherically hinged to the movable platform.
    Type: Application
    Filed: April 30, 2020
    Publication date: October 8, 2020
    Inventors: GUORU ZHAO, YONGFENG WANG
  • Patent number: 10710249
    Abstract: The present disclosure relates to a robot, and provides a 3 degree-of-freedom parallel mechanism with 3 branched-chains, which includes a fixed platform, a movable platform, and three arc-shaped connecting rods. The rotation axes of three arc-shaped connecting rods are intersected with each other and each rotation axes is parallel to the fixed platform. Each arc-shaped connecting rod has a sliding slot curved extending along a longitudinal direction. The three connecting shafts one-to-one corresponds to the three arc-shaped connecting rods and are disposed on the movable platform. A first end of each connecting shaft is fixedly connected with the movable platform. A second end is hinged joint with a connecting head. The connecting head is slid and disposed in the corresponding sliding slot.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 14, 2020
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Yongfeng Wang, Guoru Zhao, Jing Yang, Xiaojun Zhang
  • Publication number: 20200190319
    Abstract: A one-step spun composite DTY and preparation method thereof are provided. The bi-profiled fiber is manufactured with two types of modified polyester of different viscosities through the steps of melting, melt metering, composite extruding, cooling, oiling, drawing, heat setting and winding. Wherein those two modified polyesters have a molecular structure including terephthalic acid segments, ethylene glycol segments and branched diol segments, and the branched diol has a structural formula of here R1 and R2 are separately selected from the linear alkylene with 1-3 carbon atoms, R3 from the alkyl with 1-5 carbon atoms, and R4 from the alkyl with 2-5 carbon atoms. The obtained one-step spun composite DTY has an elastic shrinkage rate of no less than 35%. The method presented in this invention is involved in a simple and reasonable technological process for wide application range.
    Type: Application
    Filed: July 27, 2018
    Publication date: June 18, 2020
    Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Hongwei FAN, Guanfan JIN, Ming CHEN, Huailin REN, Yongfeng WANG, Xiangming WANG
  • Publication number: 20200189093
    Abstract: Disclosed is a three-branched six-degree-of-freedom parallel mechanism with curved sliding pairs, which includes a base, a moving platform, and three identical kinetic branches. The kinetic branches are radially and evenly distributed and arranged between the base and the moving platform. Each kinetic branch includes a first curved link assembly, a first motor, and a support link. One end of the support link is hinged to the moving platform. One end of the first curved link assembly is hinged to the support link. The first motor is disposed on the base and is configured for driving the first curved link assembly to rotate, where an arc length of the first curved link assembly is changed as the first curved link assembly is driven to rotate.
    Type: Application
    Filed: March 29, 2017
    Publication date: June 18, 2020
    Inventors: GUORU ZHAO, YONGFENG WANG
  • Publication number: 20200147786
    Abstract: A 2 DOFs decoupling parallel mechanism provided by the present disclosure comprises a fixed platform, a rotation assembly, a moving platform, an arc kinematic chain, and an arc rod. In the 2 DOFs decoupling parallel mechanism, the rotation assembly can drive the moving platform to rotate by 360 degrees around a direction being perpendicular to the fixed platform, the arc rod reciprocates along the tangential direction of the arc kinematic chain to enable the moving platform to rotate around an axis of a plane where the arc kinematic chain is located. In this way, the rotations of the moving platform in two directions are respectively driven by driving units in two directions and being independent from each other, such that the two rotation actions of the mechanism have decoupling capability.
    Type: Application
    Filed: June 9, 2017
    Publication date: May 14, 2020
    Inventors: GUORU ZHAO, YONGFENG WANG
  • Publication number: 20190389054
    Abstract: A 3 DOFs decoupling spherical parallel mechanism provided by the present disclosure comprises: a fixed platform, a rotation assembly, a moving platform, a first arc kinematic chain, a second arc kinematic chain, a first arc rod, and a second arc rod. In the 3 DOFs decoupling spherical parallel mechanism, the rotation assembly can drive the moving platform to rotate by 360 degrees around a direction being perpendicular to the fixed platform, and the first arc rod and the second arc rod reciprocate along tangential directions of the first arc kinematic chain and of the second arc kinematic chain respectively to enable the moving platform to rotate around an axis of a plane where the first arc kinematic chain or the second arc kinematic chain is located. In this way, the rotations of the moving platform in three directions are respectively driven by driving units in three directions and being independent from each other, such that the three rotation actions of the mechanism have decoupling capability.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 26, 2019
    Applicant: Shenzhen Institute of Advanced Technology
    Inventors: Guoru ZHAO, Yongfeng WANG
  • Publication number: 20190389050
    Abstract: A three-degree-of-freedom parallel mechanism with curved sliding pairs includes a fixed platform, a moving platform, and three curved branches disposed between the fixed platform and the moving platform. Each of the curved branches includes a first curved link and a second curved link that share a common arc center. One end of the first curved link is connected to fixed platform by a rotational pair. One end of the second curved link is disposed in a cavity at another end of the first curved link. The second curved link is operative to perform a reciprocating motion along a tangent of an arc of the first curved link. Another end of the second curved link is connected to the moving platform by a ball joint. The axes of the three rotational pairs of the three curved branches coincide with each other and are perpendicular to the fixed platform.
    Type: Application
    Filed: April 25, 2017
    Publication date: December 26, 2019
    Applicant: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences
    Inventors: Guoru ZHAO, Yongfeng WANG
  • Publication number: 20190375117
    Abstract: The present disclosure relates to a robot, and provides a 3 degree-of-freedom parallel mechanism with 3 branched-chains, which includes a fixed platform, a movable platform, and three arc-shaped connecting rods. The rotation axes of three arc-shaped connecting rods are intersected with each other and each rotation axes is parallel to the fixed platform. Each arc-shaped connecting rod has a sliding slot curved extending along a longitudinal direction. The three connecting shafts one-to-one corresponds to the three arc-shaped connecting rods and are disposed on the movable platform. A first end of each connecting shaft is fixedly connected with the movable platform. A second end is hinged joint with a connecting head. The connecting head is slid and disposed in the corresponding sliding slot.
    Type: Application
    Filed: November 14, 2016
    Publication date: December 12, 2019
    Inventors: Yongfeng Wang, Guoru Zhao, Jing Yang, Xiaojun Zhang
  • Patent number: 10368866
    Abstract: The disclosure relates to a surgical instrument and discloses a flexible drive member, an end-effector, and a surgical instrument. The flexible drive member includes a distal portion, a proximal portion, and a bendable portion therebetween, wherein the bendable portion includes a plurality of wire bundles extending in the length direction of the flexible drive member, and a flexible casing enclosing the plurality of wire bundles. In the technical solutions of the disclosure, the bendable portion is provided with some rigidity and flexibility due to the plurality of wire bundles, and the flexibly casing can fix the plurality of wire bundles relatively and can alleviate friction rate of the surface of the flexible drive member and further improve the rigidity of the flexible drive member.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 6, 2019
    Assignee: Reach Surgical, Inc.
    Inventors: Yongfeng Wang, Gan Zhang
  • Publication number: 20190223283
    Abstract: A device for continuously generating high intensity neutrons is provided. The device includes a differential vacuum system, a throttle pipe, a linear target tube and a solid target device arranged in sequence along a moving direction of a beam. The beam and a gaseous medium react in the linear target tube, and the beam and a solid medium react in the solid target device. Two ends of an inner cavity of the linear target tube are hermetically connected to the throttle pipe and a chamber of the solid target device, respectively.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 18, 2019
    Applicant: HEFEI INSTITUTES OF PHYSICAL SCIENCE, CAS
    Inventors: Yican WU, Yongfeng WANG, Xiang JI, Zhumin ZHAO, Wen WANG
  • Patent number: 10307158
    Abstract: Disclosed are an articulating assembly and a surgical instrument using the same. The articulating assembly includes a driver assembly configured to articulate an end effector of said surgical instrument, where said driver assembly includes: a screw portion rotatably mounted in a stationary handle of said surgical instrument, an axis of which is parallel to an axis of an elongated portion of said surgical instrument, wherein said screw portion is provided with at least two segments with opposite threads; two articulation plates in connection with said two thread segments, respectively, wherein a distal end of each articulation plate is in connection with said end effector of said surgical instrument; and a rotating sleeve coaxially sheathed on said screw portion so as to be in connection therewith through a gear assembly when being located at an articulation position.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 4, 2019
    Assignee: REACH SURGICAL INC.
    Inventor: Yongfeng Wang
  • Patent number: 10275742
    Abstract: Methods and devices for email management are provided. According to email information of emails in an email box, whether an email box contains advertisement emails is determined. The email information at least contains sender addresses of the emails. When the email box contains the advertisement emails, classification data of the advertisement emails are obtained by obtaining the email information of the advertisement emails and classifying the advertisement emails, according to the sender addresses thereof, to form advertisement-email sets with each set containing at least one advertisement email. The at least one advertisement email in a same advertisement-email set has a same sender address. The advertisement emails are displayed according to the classification data thereof. Accordingly, the email managing device includes a determining module, an obtaining module, and a displaying module.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: April 30, 2019
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Tieming Huang, Yongfeng Wang, Jiajian Xu, Shaohua Luo, Xi Chen
  • Patent number: 10253007
    Abstract: The present invention provides taxanes compounds with a formula (I) or formula (II) structure, a method for preparing the compounds, as well as the use of the compositions containing the compounds, pharmaceutically acceptable salts and solvates thereof as active ingredients in manufacturing oral antitumor medicaments, In formula (I), R1 is —COR6, —COOR6 or —CONR7aR7b; R2 is a C1-C6 alkyl, a C1-C6 alkenyl, a substituted hydrocarbon group, a heterocyclic group, an aromatic group or a substituted aromatic group; R3 is —OR6, —OCOOR6, —OCOSR6 or —OCONR7aR7b; R4 is —OR6, —OCOOR6, —OCOSR6, —OCONR7aR7b or H; wherein, R6 is a C1-C6 alkyl, a C1-C6 alkenyl, a C1-C6 alkynyl, a substituted hydrocarbon group, an aromatic group or a heterocyclic group; R7a and R7b are respectively hydrogen, a hydrocarbon group, a substituted hydrocarbon group or a heterocyclic group.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: April 9, 2019
    Assignee: Jiangsu Tasly Diyi Pharmaceutical Co., Ltd.
    Inventors: Wei Zhou, Yunrong Jing, Yongfeng Wang, Guocheng Wang
  • Patent number: 10238384
    Abstract: A suturing nail includes a first nail body a second nail body being intertwined mutually to form a helix portion; a first nail crown extending from an end of the first nail body; a second nail crown extending from an end of the second nail body and opposite to the first nail crown, the first and the second nail crown being located on the same side of the helix portion and perpendicular to the helix portion; a first nail leg extending from the other end of the first nail body; a second nail leg extending from the other end of the second nail body and being spaced from the first nail, the first and the second nail leg are located on the same side of the helix portion, the first nail leg and the second nail leg are parallel to the helix portion.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: March 26, 2019
    Assignee: Shenzhen Institutes of Advance Technology Chinese Academy of Sciences
    Inventors: Guoru Zhao, Yongfeng Wang