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:
Aug. 11, 2020
Filed:
Sep. 16, 2014
Applicant:
The Esab Group, Inc., Florence, SC (US);
Inventors:
David Charles Griffin, Florence, SC (US);
Wayne Stanely Severence, Jr., Florence, SC (US);
Daniel Thayer, Enffingham, SC (US);
Sriram Ramadurai, Florence, SC (US);
Assignee:
THE ESAB GROUP, INC., Florence, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/00 (2006.01); H05H 1/34 (2006.01); B23K 10/00 (2006.01); H05H 1/36 (2006.01);
U.S. Cl.
CPC ...
H05H 1/34 (2013.01); B23K 10/006 (2013.01); H05H 1/36 (2013.01); H05H 2001/3426 (2013.01); H05H 2001/3489 (2013.01); H05H 2001/3494 (2013.01);
Abstract
Techniques for extinguishing a plasma arc in a blowback plasma torch are provided. The plasma arc can be extinguished by bringing the electrode into contact with the nozzle and out of contact with the nozzle while the power supply and flow of gas are left on. In particular, while current is flowing through the electrode, the electrode may be brought into contact with the nozzle to extinguish the plasma arc.