Patents Assigned to Daewood Heavy Industries Co., Ltd.
  • Electrical flame sensor for use in a gas cutting apparatus
    Patent number: 5470047
    Abstract: A flame sensor of the present invention for use in a gas cutting apparatus is capable of directly measuring an electrical current flowing through a flame formed between the torch and the workpiece and includes a first terminal coupled to the torch; a second terminal coupled to the workpiece; and a sensing portion for detecting a current between the first and the second terminals, and generating a current sense signal.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: November 28, 1995
    Assignee: Daewood Heavy Industries Co., Ltd.
    Inventors: Yoon-Sub Shin, Se-Yeob Chang, Sang-Jin Lee, Jae-Kon Kim