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:
Oct. 03, 2023
Filed:
Jun. 26, 2020
Applicant:
Komatsu Industries Corporation, Kanazawa, JP;
Inventors:
Nobuhiro Takata, Kanazawa, JP;
Yoshihiro Yamaguchi, Kanazawa, JP;
Assignee:
KOMATSU INDUSTRIES CORPORATION, Ishikawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 10/00 (2006.01); B23K 37/04 (2006.01); B23K 37/02 (2006.01); G05B 19/402 (2006.01); B23K 31/10 (2006.01); H05H 1/34 (2006.01); B23K 101/18 (2006.01);
U.S. Cl.
CPC ...
B23K 10/006 (2013.01); B23K 10/00 (2013.01); B23K 31/10 (2013.01); B23K 37/0288 (2013.01); B23K 37/0461 (2013.01); G05B 19/402 (2013.01); H05H 1/34 (2013.01); B23K 2101/18 (2018.08); G05B 2219/37087 (2013.01);
Abstract
A plasma torch moves to a piercing position. The plasma torch generates a plasma arc and starts a piercing step at the piercing position. Whether the piercing step is completed is determined based on the arc voltage. The plasma torch is held at the piercing position in the horizontal direction from the start of the piercing step until the completion of the piercing step. The plasma torch is moved in a predetermined direction including at least the horizontal direction after the piercing step is completed.