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:
Jun. 30, 2026
Filed:
Mar. 25, 2022
Koki Holdings Co., Ltd., Tokyo, JP;
Toshinori Yasutomi, Ibaraki, JP;
Tatsuhiro Tago, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
The present invention improves workability. In a driving machine, a valve mechanism is provided at a top wall of a pressure storage container. The valve mechanism has a valve for replenishing air in a pressure chamber. The valve is inserted from an upper side into a communication passageway formed in the pressure storage container and is attached to a valve attaching portion of the communication passageway. The valve mechanism has a valve stopper, and the valve stopper is disposed at the upper side of the valve and presses a valve core downward. In other words, the valve stopper regulates upward movement of the valve core (valve). Therefore, the attachment state of the valve can be favorably maintained, and the workability of the driving machine can be improved.