Patents by Inventor Yung-Nung Liu

Yung-Nung 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).

  • Patent number: 11819775
    Abstract: A single-shot/repeating switching device is provided for a toy gun that includes an outer casing, a bolt seat, a trigger link, and a trigger section. The single-shot/repeating switching device includes: an adjustment hole formed between the outer casing and the bolt seat, an adjustment seat having a toothed rail, a pinion rod rotatably arranged on the toothed rail, an operating portion arranged on the pinion rod and extended to outside of the adjustment hole, a coupling portion formed on the adjustment seat and opposite to the toothed rail, and a movable arrestor joined by a joining part to the coupling portion. A user may push, from the outside the operating portion to cause corresponding motions of the pinion rod and the toothed rail so as to drive the movable arrestor by means of the adjustment seat to selectively block a movement of the trigger link for efficient single-shot/repeating switchability.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: November 21, 2023
    Assignee: ACTION-ARMY COMPANY
    Inventor: Yung-Nung Liu
  • Patent number: 10914547
    Abstract: A structure includes a bolt body combined in a toy gun, a bullet feeding element, a high pressure air opening, an air outlet opening, an air valve assembly, a piston element, a recoil bar at one side of the bolt body, a first elastic element fit over the recoil bar, a bolt sleeve defined at one side of the bolt body and movably fit over the recoil bar, and an abutting section. When the high pressure air is input through the high pressure air opening, the air valve assembly may change a flowing direction thereof and drive the abutting section to move so as to control rearward movement of the piston element, the bolt body, and the bullet feeding element. A first elastic element that is operable to move the bolt body forward is disposed on the recoil bar outside the bolt body.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 9, 2021
    Assignee: ACTION-ARMY COMPANY
    Inventor: Yung-Nung Liu
  • Publication number: 20210003365
    Abstract: A structure includes a bolt body combined in a toy gun, a bullet feeding element, a high pressure air opening, an air outlet opening, an air valve assembly, a piston element, a recoil bar at one side of the bolt body, a first elastic element fit over the recoil bar, a bolt sleeve defined at one side of the bolt body and movably fit over the recoil bar, and an abutting section. When the high pressure air is input through the high pressure air opening, the air valve assembly may change a flowing direction thereof and drive the abutting section to move so as to control rearward movement of the piston element, the bolt body, and the bullet feeding element. A first elastic element that is operable to move the bolt body forward is disposed on the recoil bar outside the bolt body.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 7, 2021
    Inventor: Yung-Nung Liu