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:
May. 20, 2025
Filed:
Oct. 15, 2021
Applicant:
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Inventors:
Assignee:
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 20/12 (2006.01); B23K 103/20 (2006.01);
U.S. Cl.
CPC ...
B23K 20/123 (2013.01); B23K 20/1255 (2013.01); B23K 20/1265 (2013.01); B23K 20/126 (2013.01); B23K 2103/20 (2018.08);
Abstract
A friction stir spot welder includes a pin, a shoulder, a rotary driver, an advance-retract driver, and circuitry. When a preset and predetermined first period of time has elapsed in a state where a speed of the rotating shoulder in an axial direction or a speed of the pin in the axial direction is a preset and predetermined first speed, the circuitry determines that the tip of the shoulder or the tip of the pin has reached a contact surface of a second workpiece which is in contact with a first workpiece.