Patents by Inventor Lee Cheol JI

Lee Cheol JI 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).

  • Eco-mold apparatus for manufacturing piston, mold apparatus for manufacturing piston, and piston manufacturing method
    Patent number: 10682686
    Abstract: The present invention relates to an eco-mold apparatus for manufacturing a piston, a mold apparatus for manufacturing a piston, and a piston manufacturing method, which mold each part of a piston while decreasing the weight of the piston, and the apparatus may comprise: a first eco-mold part which may move forward or backward in a first direction to shape a portion of an eco-part of a piston; a second eco-mold part which may shape-match with the first eco-mold part to mold another portion of the eco-part of the piston; and a piston pickup part which picks up the piston over the second eco-mold part, so that the piston pickup part can separate the piston from the second eco-mold part.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 16, 2020
    Assignee: DONG YANG PISTON CO., LTD
    Inventors: Jun Kui Yang, Kwan Ho Ryu, Jeong Keon Lee, Lee Cheol Ji, Sang Min Lee
  • ECO-MOLD APPARATUS FOR MANUFACTURING PISTON, MOLD APPARATUS FOR MANURACTURING PISTON, AND PISTON MANUFACTURING METHOD
    Publication number: 20180207715
    Abstract: The present invention relates to an eco-mold apparatus for manufacturing a piston, a mold apparatus for manufacturing a piston, and a piston manufacturing method, which mold each part of a piston while decreasing the weight of the piston, and the apparatus may comprise: a first eco-mold part which may move forward or backward in a first direction to shape a portion of an eco-part of a piston; a second eco-mold part which may shape-match with the first eco-mold part to mold another portion of the eco-part of the piston; and a piston pickup part which picks up the piston over the second eco-mold part, so that the piston pickup part can separate the piston from the second eco-mold part.
    Type: Application
    Filed: February 26, 2016
    Publication date: July 26, 2018
    Inventors: Jun Kui YANG, Kwan Ho RYU, Jeong Keon LEE, Lee Cheol JI, Sang Min LEE