Patents by Inventor CHAN-SOL AHN

CHAN-SOL AHN 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).

  • NON-WELDING TYPE CONCRETE-FILLED STEEL TUBE COLUMN HAVING SLOT AND METHOD FOR FABRICATING THE SAME
    Publication number: 20130133278
    Abstract: A non-welding type concrete-filled steel tube column utilizing a slot, in which an external steel tube is bended and retracted to allow a jointing portion thereof to be formed as a T-shaped bending part is provided. A slot is inserted into the T-shaped bending part in a sliding manner to construct in a non-welding manner, and a multi-perforated penetrating part can be formed on the external steel tube to secure fire resistance capacity thereof. A method of fabricating the same is also provided.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 30, 2013
    Applicant: KOREA INSTITUTE OF CONSTRUCTION TECHNOLOGY
    Inventors: HYUNG-JUN KIM, HEUNG-YOUL KIM, IN-HWAN YEO, CHAN-SOL AHN