Patents by Inventor Jongduk YANG

Jongduk YANG 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).

  • HORIZONTAL SUPPORTER FOR SCAFFOLDS
    Publication number: 20190211572
    Abstract: A horizontal supporter for scaffolds is disclosed. The horizontal supporter is configured such that, when a pressing piece is moved upward in order to unlock a locking piece, the pressing piece and the locking piece are caught by each other due to engagement between a catching recess and a latching projection, whereby the pressing piece remains moved upward, wherein, even when the elasticity of an elastic body is reduced due to repetitive use of the horizontal supporter or even when a gap is formed between the related parts due to wear of the related parts, it is possible to prevent the pressing piece from moving downward due to the weight of the pressing piece, whereby it is possible to eliminate trouble in use and to reduce financial loss due to a reduction in the lifespan of the horizontal supporter.
    Type: Application
    Filed: April 13, 2018
    Publication date: July 11, 2019
    Applicant: D.K.S. GLOBAL CO., LTD.
    Inventor: Jongduk YANG
  • Pressing member of horizontal supporter for scaffolds
    Patent number: D913526
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: March 16, 2021
    Assignee: NIKKEN LEASE KOGYO CO., LTD.
    Inventor: Jongduk Yang
  • Step handrail for scaffolds
    Patent number: D915620
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: April 6, 2021
    Assignee: NIKKEN LEASE KOGYO CO., LTD.
    Inventor: Jongduk Yang
  • Locking member of horizontal supporter for scaffolds
    Patent number: D915622
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: April 6, 2021
    Assignee: NIKKEN LEASE KOGYO CO., LTD.
    Inventor: Jongduk Yang