Patents by Inventor Nengwen Liu

Nengwen 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).

  • Publication number: 20230309692
    Abstract: A twistable and stackable shelf includes storage members, an elastic member, a first supporting pipe, a second supporting pipe, a first connecting member, and a second connecting member. Each of the first and second connecting member includes an end portion defining an inserting hole and an inserting portion defining a bottom groove and fluidly connected to the inserting hole. Two ends of the elastic member are inserted into the inserting holes and extend to the bottom grooves; two hooking members are arranged in the bottom grooves. The first and second supporting pipes form a vertical arrangement through the first and second connecting members and support the plurality of the storage members in a vertical direction. Or, the first and second supporting pipes form a horizontal arrangement through the first and second connecting members, and the storage members are twisted and stacked in the vertical direction.
    Type: Application
    Filed: May 8, 2022
    Publication date: October 5, 2023
    Inventors: NENGWEN LIU, JIANBIN WU, FEIFEI LI, JINGYUAN LIANG
  • Patent number: 11701870
    Abstract: Provided are a composite material and a preparation method therefor. The composite material comprises: a base layer; a first plant fibre fabric located on the upper surface of the base layer; optionally, a second plant fibre fabric located on the lower surface of the base layer; and resins present in each layer. The composite material has a decorative performance and an improved mechanical performance.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 18, 2023
    Inventors: Xiaosu Yi, Yan Tan, Jianfeng Tong, Qinghua Liao, Xu Chen, Feng Shi, Hu Zhang, Le Luo, Ziqing Liang, Nengwen Liu, Lingsheng Zhong
  • Publication number: 20220395091
    Abstract: An foldable shelf includes: a foldable support body, where the support body can be switched between a folded state and an unfolded state; several layer plates, where the several layer plates fit with the support body to form a storage space in the unfolded state and reduce a volume of the foldable shelf in the folded state; and a fixing mechanism for securing the layer plates to the support body, where the fixing mechanism includes: a first fastener, where an outer surface of the first fastener is provided with at least one protrusion; and a second fastener, where the second fastener is provided with a groove for accommodating the first fastener; where a side wall of the groove is provided with a through hole matching the protrusion.
    Type: Application
    Filed: August 8, 2021
    Publication date: December 15, 2022
    Inventors: Nengwen LIU, Feifei LI, Yongkang HUO
  • Patent number: 11523686
    Abstract: An foldable shelf includes: a foldable support body, where the support body can be switched between a folded state and an unfolded state; several layer plates, where the several layer plates fit with the support body to form a storage space in the unfolded state and reduce a volume of the foldable shelf in the folded state; and a fixing mechanism for securing the layer plates to the support body, where the fixing mechanism includes: a first fastener, where an outer surface of the first fastener is provided with at least one protrusion; and a second fastener, where the second fastener is provided with a groove for accommodating the first fastener; where a side wall of the groove is provided with a through hole matching the protrusion.
    Type: Grant
    Filed: August 8, 2021
    Date of Patent: December 13, 2022
    Assignee: GUANGDONG WIREKING HOUSEWARES & HARDWARE CO., LTD
    Inventors: Nengwen Liu, Feifei Li, Yongkang Huo
  • Patent number: 11172759
    Abstract: A diamond-shaped folding rack includes a left side frame, a right side frame, a folding layer plate, a linkage vertical rod, and a locking mechanism. The folding layer plate is axially connected to the left and right side frames. The linkage vertical rod is provided at a folding junction of the folding layer plate. The linkage vertical rod moves up to allow the folding layer plate to fold upward; the linkage vertical rod moves down to allow the folding layer plate to unfold downward and horizontally.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 16, 2021
    Assignee: GUANGDONG WIREKING HOUSEWARES & HARDWARE CO., LTD
    Inventor: Nengwen Liu
  • Patent number: 11001286
    Abstract: A trolley assembled by a snap-fit structure is provided. The trolley comprises a first carrying basket, a second carrying basket, a third carrying basket each having a carrying space, and an assembly support frame arranged at both sides of the first, second and third carrying baskets. The carrying baskets are respectively provided with a snap-fit assembly component for assembling onto or disassembling from the assembly support frame. The assembly support frame is provided with a clamping groove which is matched with corresponding support crossbar for a snap-fit assembly or disassembly. The disclosed trolley has a simple structure but high structural stability and can be assembled arbitrarily in a snap-fit manner and disassembled into different components which then be receipted without tools. Moreover, the disclosed trolley is convenient for packaging, storage and transport, and has strong applicability and reduced usage cost.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 11, 2021
    Assignee: GUANGDONG WIREKING HOUSEWARES AND HARDWARE CO., LTD.
    Inventor: Nengwen Liu
  • Publication number: 20200405050
    Abstract: The utility model discloses a diamond-shaped folding rack, comprising a left side frame, a right side frame, a folding layer plate, a linkage vertical rod, and a locking mechanism; wherein the folding layer plate is axially connected to the left and right side frames; the linkage vertical rod, is provided at the folding junction of the folding layer plate, and the linkage vertical rod moves tip or down while driving the folding layer plate to fold or unfold synchronously. The folding rack has strong locking stability and high support strength, the multi-layer folding layer plate is folded or unfolded synchronously, and it is convenient to operate.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventor: Nengwen Liu
  • Publication number: 20200231197
    Abstract: A trolley assembled by a snap-fit structure is provided. The trolley comprises a first carrying basket, a second carrying basket, a third carrying basket each having a carrying space, and an assembly support frame arranged at both sides of the first, second and third carrying baskets. The carrying baskets are respectively provided with a snap-fit assembly component for assembling onto or disassembling from the assembly support frame. The assembly support frame is provided with a clamping groove which is matched with corresponding support crossbar for a snap-fit assembly or disassembly. The disclosed trolley has a simple structure but high structural stability and can be assembled arbitrarily in a snap-fit manner and disassembled into different components which then be receipted without tools. Moreover, the disclosed trolley is convenient for packaging, storage and transport, and has strong applicability and reduced usage cost.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 23, 2020
    Inventor: Nengwen LIU
  • Publication number: 20190001640
    Abstract: Provided are a composite material and a preparation method therefor. The composite material comprises: a base layer; a first plant fibre fabric located on the upper surface of the base layer; optionally, a second plant fibre fabric located on the lower surface of the base layer; and resins present in each layer. The composite material has a decorative performance and an improved mechanical performance.
    Type: Application
    Filed: December 21, 2015
    Publication date: January 3, 2019
    Inventors: Xiaosu Yi, Yan Tan, Jianfeng Tong, Qinghua Liao, Xu Chen, Feng Shi, Hu Zhang, Le Luo, Ziqing Liang, Nengwen Liu, Lingsheng Zhong
  • Patent number: D901816
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: November 10, 2020
    Assignee: GUANGDONG WIREKING COMMERCIALS CO., LTD.
    Inventor: Nengwen Liu
  • Patent number: D919918
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 18, 2021
    Inventor: Nengwen Liu