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:
Mar. 12, 2019
Filed:
Jan. 27, 2017
J. D Components Co., Ltd., Shou Shui Hsiang, Chang Hua Hsien, TW;
Pin-Chieh Feng, Chang Hua Hsien, TW;
Wen-Chia Kuo, Chang Hua Hsien, TW;
J.D Components Co., Ltd., Chang Hua Hsien, TW;
Abstract
A pneumatic and hydraulic elevating seat tube assembly of a bicycle includes an outer tube and a movable inner tube in the outer tube. An elevating adjustment unit in the movable inner tube has a fixed inner tube in the movable inner tube, a fixed piston in the fixed inner tube, a floating piston in the fixed inner tube, and an elastic isolator in the floating piston which is between a bottom end of the movable inner tube and the fixed piston so that a gas chamber is formed between the floating piston and the movable inner tube and a lower oil chamber is formed between the floating piston and the fixed piston. The elastic isolator has first and second annular grooves facing toward the lower oil chamber and the gas chamber respectively. The elastic isolator under pressure is extended radially, thereby effective in isolating oil from gas positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile