Patents by Inventor Kyong-gwan Lee

Kyong-gwan Lee 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: 6840457
    Abstract: A wet-pipe sprinkler system, method of supplying water to the system, and method of dealing with a leakage of the system are provided, wherein the wet-pipe sprinkler system includes a sprinkler head; a plurality of interconnected pipes for supplying water to the sprinkler head; at least one water supply connected to one end of the pipes; an electric main valve for controlling inflow of water to the pipes; an electric drain valve to drain water from the pipes; a first electrical control circuit in a central control studio which outputs a drain valve opening signal to the electric drain valve and a main valve closing signal to the electric main valve when a leakage is detected, thereby blocking the water from entering the pipes and draining the water from the pipes. Accordingly, a leak may be dealt with promptly, thereby minimizing damage caused by the leakage.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: January 11, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-jung Park, Sung-sik Yun, Kyong-gwan Lee, Seong-ock Hong, Hyun-ku Kim
  • Publication number: 20030066903
    Abstract: A wet-pipe sprinkler system, method of supplying water to the system, and method of dealing with a leakage of the system are provided, wherein the wet-pipe sprinkler system includes a sprinkler head; a plurality of interconnected pipes for supplying water to the sprinkler head; at least one water supply connected to one end of the pipes; an electric main valve for controlling inflow of water to the pipes; an electric drain valve to drain water from the pipes; a first electrical control circuit in a central control studio which outputs a drain valve opening signal to the electric drain valve and a main valve closing signal to the electric main valve when a leakage is detected, thereby blocking the water from entering the pipes and draining the water from the pipes. Accordingly, a leak may be dealt with promptly, thereby minimizing damage caused by the leakage.
    Type: Application
    Filed: October 8, 2002
    Publication date: April 10, 2003
    Inventors: Hyo-Jung Park, Sung-Sik Yun, Kyong-Gwan Lee, Seong-Ock Hong, Hyun-ku Kim