Patents by Inventor RENJUN YAO

RENJUN YAO 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).

  • Patent number: 11794061
    Abstract: A convenient weight-adjustable dumbbell, comprising a handle, and two rotating disks, two connecting disks, and two fixed blocks, a flexible shaft is connected to the side of each rotating disk, the flexible shaft surrounds the center of the rotating disk, and the other end of the flexible shaft runs through the connecting disk and the fixed block, an outer side of each fixed block is detachably connected with at least one weight block, one side of each weight block is connected with a lock for connecting the fixed block, the other side of each weight block is provided with a second slot, and each weight block is provided with a insertion hole for—the flexible shaft to pass through.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: October 24, 2023
    Assignee: YONGKANG BANI FITNESS EQUIPMENT CO., LTD.
    Inventor: Renjun Yao
  • Publication number: 20230173326
    Abstract: The present application discloses a convenient weight-adjustable dumbbell, comprising a handle, and a rotating disk connected to both ends of the handle, a connecting disk is movably connected to a side of the rotating disk, and a fixed block is connected to a side of the connecting disk, a flexible shaft is connected to the side of the rotating disk, and the flexible shaft surrounds the center of the rotating disk, and the other end of the flexible shaft runs through the connecting disk and the fixed block, an outer side of the fixed block is detachably connected with weight blocks, one side of the weight block is connected with a lock for connecting the fixed block, the other side of the weight block is provided with a second slot, and the center of the weight block is provided with a insertion hole for the passage of the flexible shaft.
    Type: Application
    Filed: January 16, 2023
    Publication date: June 8, 2023
    Inventor: RENJUN YAO