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. 20, 2015
Filed:
Feb. 15, 2011
Yoshiaki Tanaka, Osaka, JP;
Masafumi Naruto, Osaka, JP;
Yoshiyuki Tabata, Hyogo, JP;
Norikazu Oosaki, Nara, JP;
Yoshiaki Tanaka, Osaka, JP;
Masafumi Naruto, Osaka, JP;
Yoshiyuki Tabata, Hyogo, JP;
Norikazu Oosaki, Nara, JP;
Abstract
If arc interruption occurs during AC arc welding, a first AC frequency predetermined for normal welding is switched to a second AC frequency higher than the first AC frequency. This allows the arc to be reignited without applying a high frequency high voltage, thereby preventing the damage of the surface of the weld bead or communication failure due to the high frequency high voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile