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:
Dec. 28, 2021
Filed:
Jul. 06, 2018
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
Tetsuya Ishizuka, Tokyo, JP;
YOSHINO KOGYOSHO CO., LTD., Tokyo, JP;
Abstract
A discharge pump () includes a stationary suction part (A) which includes a cylinder (A) having a first check valve (V) at a lower part thereof, and a mounting member (A) to be mounted on a neck part of a container body, and an actuating member (B) which includes a discharge head (B), a stem (B), a piston guide (B), and an annular piston (B), a second check valve (V) being formed between a lower end part of the annular piston and a lower part of the piston guide, and in a fitting part between the stem and the piston guide, an engaging unit (E) which is configured to restrict the stem and the piston guide from idling each other when screwing of the actuating member to the stationary suction part is released and the actuating member is raised from the stationary suction part is provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile