Patents by Inventor Seok G. Yoon

Seok G. Yoon 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).

  • Lumber door and method for manufacturing thereof
    Patent number: 5062915
    Abstract: A lumber door and manufacturing method thereof which is constructed by perforating the plurality of the pipe inserting holes at each of the unit lumbers in the direction of transverse and thickness with the predetermined diameter, depth and location, inserting the plurality of the metal pipes into the pipe inserting holes, and assembling the unit lumbers and the pipes one by one with spreading over the adhesive resin to both of the surfaces of the pipes and to the contacting surfaces so as to be adhered each other to form a single integrally formed lumber door, and pressing at once the plurality of the lumber door assembly piled up one above one within a press machine for about two hours, and forming the engraving patterns on the surface of the lumber door within the region where pipes are not arranged, so that a single integrally formed lumber door can be prevented or excluded from the bending, twisting and cracking phenomena due to the changes of the temperature and the humidity of the environment, thereby
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: November 5, 1991
    Inventors: Seok G. Yoon, Jeong Y. Seo
  • Lumber door and method for manufacturing thereof
    Patent number: 4908990
    Abstract: A lumber door and manufacturing method thereof which is constructed by perforating the plurality of the pipe inserting holes at each of the unit lumbers in the direction of transverse and thickness with the predetermined diameter, depth and location, inserting the plurality of the metal pipes into the pipe inserting holes, and assembling the unit lumbers and the pipes one by one with spreading over the adhesive resin to both of the surfaces of the pipes and to the contacting surfaces so as to be adhered each other to form a single integrally formed lumber door, and pressing at once the plurality of the lumber door assembly piled up one above one within a press machine for about two hours, and forming the engraving patterns on the surfaces of the lumber door within the region where pipes are not arranged, so that a single integrally formed lumber door can be prevented or excluded from the bending, twisting and cracking phenomena due to the changes of the temperature and the humidity of the environment, thereby
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: March 20, 1990
    Inventors: Seok G. Yoon, Jeong Y. Seo