Patents by Inventor Ui Y. Chang

Ui Y. Chang 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: 5181846
    Abstract: A safety apparatus for use with a gas burner having a thermoelectrically activated on-off safety valve for controlling gas flow to the burner, a governor for maintaining constant gas pressure to the burner, a gas channel interconnecting safety valve and governor, and a thermocouple for generating a thermoelectromotive force in the presence of a flame to electrically maintain the safety valve in an open position, is disclosed. The safety apparatus includes a gas pressure operator for sensing a predetermined excessive pressure within the gas channel and which initiates a shut-off of the gas supply to the burner upon sensing the high pressure gas in the channel. A connecting device is electrically connected to a solenoid in the safety valve for controlling the on/off position of the safety valve and is electrically connected to the thermocouple.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: January 26, 1993
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ui Y. Chang