Patents by Inventor Jianguo DAI

Jianguo DAI 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: 20240093554
    Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 21, 2024
    Inventors: Qingyou LIU, Jianguo ZHAO, Guorong WANG, Haiyan ZHU, Xuecheng DONG, Xingming WANG, Xu LUO, Yingju PEI, Xianwei DAI
  • Publication number: 20240026202
    Abstract: Sub-ambient daytime radiative cooling (SDRC) coating comprising: an alkali activated metakaolin, BaSO4, and silica nanospheres, wherein the alkali activated metakaolin is prepared by reaction of metakaolin with an alkali activator comprising waterglass and a strong base selected from the group consisting of LiOH, NaOH, KOH, Ca(OH)2, Li2O Na2O, K2O, CaO, and a mixture thereof, a coating formulation comprising the same, and a method of preparation and use thereof.
    Type: Application
    Filed: July 25, 2023
    Publication date: January 25, 2024
    Inventors: Jianguo DAI, Ning YANG
  • Patent number: 11794437
    Abstract: A paper box package forming apparatus includes a continuous feeding device, a box folding mechanism and a cover sealing mechanism. The continuous feeding device includes a paperboard stacking frame, an adsorption mechanism and a roll extrusion conveying mechanism. A paperboard is absorbed from a back side of the paperboard stacking frame through the adsorption mechanism and conveyed to a box folding device through the roll extrusion conveying mechanism. The box folding device includes a downward-pressing inner punch, a box folding outer mold and a pushing mechanism. The pushing mechanism conveys a bottom box to the cover sealing mechanism. The downward-pressing and attaching mechanism includes downward-pressing driving mechanism, a top-pressing plate, side-pressing plates and overturning cylinders. The side-pressing plates are hinged to side edges of the top-pressing plate through the driving of the overturning cylinders.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: October 24, 2023
    Assignee: JIANGSU BOSIDENG TECHNOLOGY CO., LTD.
    Inventor: Jianguo Dai
  • Publication number: 20230001664
    Abstract: A paper box package forming apparatus includes a continuous feeding device, a box folding mechanism and a cover sealing mechanism. The continuous feeding device includes a paperboard stacking frame, an adsorption mechanism and a roll extrusion conveying mechanism. A paperboard is absorbed from a back side of the paperboard stacking frame through the adsorption mechanism and conveyed to a box folding device through the roll extrusion conveying mechanism. The box folding device includes a downward-pressing inner punch, a box folding outer mold and a pushing mechanism. The pushing mechanism conveys a bottom box to the cover sealing mechanism. The downward-pressing and attaching mechanism includes downward-pressing driving mechanism, a top-pressing plate, side-pressing plates and overturning cylinders. The side-pressing plates are hinged to side edges of the top-pressing plate through the driving of the overturning cylinders.
    Type: Application
    Filed: December 31, 2020
    Publication date: January 5, 2023
    Applicant: JIANGSU BOSIDENG TECHNOLOGY CO., LTD.
    Inventor: Jianguo DAI
  • Publication number: 20210131708
    Abstract: A smart sub-ambient radiative cooling composition including TiO2 particles; inorganic particles selected from the group consisting of SiO2, CaCO3, SiC, ZnO, Al2O3, ZnO, and mixtures thereof; fluorescent pigment particles; and a polymer useful for sub-ambient radiative cooling, methods of preparation, and use thereof.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Jianguo DAI, Xiao XUE, Dangyuan LEI, Meng QIU, Wei JIN
  • Patent number: 10654105
    Abstract: The present disclosure discloses flake metal lithium powder and a preparing method thereof; by ultrasonically pulverizing the metal lithium placed in a low-viscosity inert organic resolvent using a vacuum ultrasonic pulverization method, a micrometer scale flake metal lithium powder is prepared. The metal lithium powder may be used as an anode material for a lithium cell or lithium ion cell. The present method has advantages of high product purity, simple operation, low processing temperature, low cost, high efficiency, and less demanding on equipment, etc., and has a high prospect of being applied to mass production of metal lithium powder.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 19, 2020
    Assignee: CHENGDU EMINENT NEW ENERGY TECHNOLOGY CO., LTD
    Inventors: Yuanfang Wang, Jianguo Dai, Yijun Fan, Chengsheng Hu, Guozheng Ping, Pingfei Lu, Suxia Chen, Qianqian Wang
  • Publication number: 20200115549
    Abstract: A method for preparing a poly(phenylene ether) includes oxidatively polymerizing a poly(phenylene ether) starting material having an initial intrinsic viscosity in the presence of an organic solvent and a copper-amine catalyst to form a reaction mixture including a poly(phenylene ether) having a final intrinsic viscosity that is at least 50% greater than the initial intrinsic viscosity. The method further includes terminating the oxidative polymerization to form a post-termination reaction mixture; combining an aqueous solution comprising a chelant with the post-termination reaction mixture to form a chelation mixture of an aqueous phase comprising chelated copper ion, and an organic phase comprising dissolved poly(phenylene ether); separating the aqueous phase and the organic phase; and isolating the poly(phenylene ether) from the organic phase. High molecular weight poly(phenylene ether)s prepared according to the method described herein are also disclosed.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 16, 2020
    Inventors: Eylem Tarkin-Tas, Jianguo Dai
  • Publication number: 20190388973
    Abstract: The present disclosure discloses flake metal lithium powder and a preparing method thereof; by ultrasonically pulverizing the metal lithium placed in a low-viscosity inert organic resolvent using a vacuum ultrasonic pulverization method, a micrometer scale flake metal lithium powder is prepared. The metal lithium powder may be used as an anode material for a lithium cell or lithium ion cell. The present method has advantages of high product purity, simple operation, low processing temperature, low cost, high efficiency, and less demanding on equipment, etc., and has a high prospect of being applied to mass production of metal lithium powder.
    Type: Application
    Filed: September 18, 2018
    Publication date: December 26, 2019
    Inventors: Yuanfang WANG, Jianguo DAI, Yijun FAN, Chengsheng HU, Guozheng PING, Pingfei LU, Suxia CHEN, Qianqian WANG