Patents by Inventor Dong Woo Kum

Dong Woo Kum 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).

  • Joint connector for bars
    Patent number: 4027988
    Abstract: A joint for firmly holding three legs together along a longitudinally intermediate portions thereof; the joint consisting of two spider-like members each of which is generally hemispherical in shape and includes three radial arms and three notches therebetween for receiving the three legs, the two spider-like members being clamped together by a single central screw, and clamping the three legs therebetween, each notch and the inner side of each arm being shaped so that a leg rests therein at an angle.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: June 7, 1977
    Inventor: Dong Woo Kum