Patents by Inventor Zhongji Chen

Zhongji Chen 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: 8783539
    Abstract: An adjusting mechanism for nailing power of nailing gun, comprising: a slot which is arranged in an upper aluminum cap and is co-axial with an air cylinder, so that the balanced valve airtight slides in the slot, the front side of the balanced valve is exposed to a main chamber, and the rear side of the balanced valve encloses with the inner surface of the upper aluminum cap to form a control chamber; the travel distance of the balanced valve is restricted between the cylinder and a cushion seal arranged on the rear surface of the upper aluminum cap, wherein the cushion seal is positioned axial position adjusting mechanism. The present invention has the advantages of capable of adjusting nailing power so as to provide maximum output power and is convenient for adjusting nailing frequencies.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 22, 2014
    Assignee: Taizhou Dajiang Ind. Co., Ltd.
    Inventors: Mingjun Yang, Zhongji Chen, Yuanhu Su