Patents by Inventor Evike Chang

Evike Chang 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: 20230062779
    Abstract: The present invention relates to barrel plugs for airsoft rifles and/or airguns, preferably barrel plugs that can be secured to an airsoft rifle and/or an airgun through a threaded connection and that can close a barrel of the airsoft rifle and/or the airgun through a closer held by a threaded connection.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 2, 2023
    Inventor: Evike Chang
  • Patent number: 10322355
    Abstract: A portable toy gun capable of being quickly assembled and dismantled, including a first gun barrel and a second gun barrel, a gun stock mounted at one end of the first gun barrel, a trigger component connected to one side of the first gun barrel, and a handle and a magazine mounted at two opposite ends of the trigger component respectively. The first gun barrel includes an outer sleeve, a first bore, and a locking mechanism mounted on the outer side of one end of the outer sleeve. A plug is mounted at one end of the first bore, and a guiding locating protrusion is disposed on one side of the plug. The second gun barrel includes a second outer sleeve and a second bore. One end of the second outer sleeve defines a locking hole corresponding to the locking mechanism and a slot corresponding to the plug.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: June 18, 2019
    Inventors: Yi Chun Liu, Evike Chang