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:
Apr. 21, 2025
Filed:
Mar. 14, 2021
Kubota Corporation, Osaka, JP;
Yuito Komaru, Amagasaki, JP;
Masataka Shimomura, Amagasaki, JP;
Daichi Higasa, Amagasaki, JP;
Kohei Ikeda, Amagasaki, JP;
KUBOTA CORPORATION, Osaka, JP;
Abstract
A watertightness testing device () for performing a watertightness test of a joined section between joined pipes (and), the watertightness testing device () including a testing device body () and a moving operation rod () for moving the testing device body () in the pipes in a pipe axial direction (B) from outside an end section of the pipes, wherein the moving operation rod () is provided in the testing device body () and extends along the pipe axial direction (B), main supporting members (and) for supporting the moving operation rod () are provided on the moving operation rod () outside the pipe (), and the main supporting members (and) have a rotatable main rolling member () in a lower end section, the main supporting members (and) are switchable between a supporting posture (K) in which the main supporting members (and) support the moving operation rod () outside of the pipes and a folded posture in which the main supporting members (and) are folded inside the pipes, and the main supporting members (and) are urged from the folded posture toward the supporting posture (K).