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:
Jan. 14, 2025
Filed:
Nov. 13, 2023
J.d Components Co., Ltd., Chang Hua Hsien, TW;
Yu-An Lin, Chang Hua Hsien, TW;
J.D COMPONENTS CO., LTD., Chang Hua Hsien, TW;
Abstract
A pneumatic-hydraulic control device includes a piston seat mounted in a cylinder, a piston pin disposed in the piston seat and having an axial air channel, and an acting assembly. When the piston pin is closed, hydraulic oil cannot flow between the piston seat and the piston pin, so that the cylinder cannot be moved. When the piston pin is opened, hydraulic oil flows between the piston seat and the piston pin, so that the cylinder can be moved. The acting assembly includes a sleeve tube connected with the piston seat and an acting member connected with the piston pin and inserted in the sleeve tube to form an exhaust channel. The exhaust channel communicates with the axial air channel to eliminate negative pressure generated between the piston pin and the piston seat when the piston pin is pulled down, thereby reducing a pull-down resistance of the piston pin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile