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. 20, 2026
Filed:
Dec. 20, 2021
Yonwoo Co., Ltd., Incheon, KR;
Seong Ung Choe, Incheon, KR;
Tae Yong Kim, Incheon, KR;
YONWOO CO., LTD., Incheon, KR;
Abstract
A pump assembly includes a cylinder open on top and bottom thereof and having a hollow portion formed therein and a first wing protruding outward from the outer peripheral surface of top thereof, a sealing part having at least a portion thereof inserted into the cylinder to at least partly seal the upper peripheral surface of the cylinder and a second wing protruding outward from the outer peripheral surface of the top thereof, a stem moving downward in reply to an external force to vary internal pressure of the cylinder, an elastic member disposed between the stem and the sealing part to apply an elastic force to the stem from the sealing part, and a housing coupled to the cylinder in such a way to surround the outer peripheral surface of the upper portion of the cylinder and adapted to detachably couple the pump assembly to a container.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile