The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 1995
Filed:
Jun. 23, 1994
Applicant:
Inventors:
Yoon-Sub Shin, Incheon, KR;
Se-Yeob Chang, Seoul, KR;
Sang-Jin Lee, Incheon, KR;
Jae-Kon Kim, Seoul, KR;
Assignee:
Daewood Heavy Industries Co., Ltd., Incheon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
266 76 ; 266 80 ; 266 48 ;
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.