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. 10, 2026
Filed:
Feb. 10, 2022
Nifco Inc., Yokosuka, JP;
Katsutoshi Uchida, Yokosuka, JP;
NIFCO INC., Yokosuka, JP;
Abstract
The present invention addresses the problem of stabilizing the state of assembly of a seal member while allowing movement of a piston member in a direction that reduces one space inside a cylinder member with little resistance. The seal member includes a base portion located towards the one space, which is a first space inside the cylinder member, and an extending portion extending from the base portion toward the other space, which is the second space inside the cylinder member. The piston member is provided with a first holding portion that faces the base portion of the sealing member, a second holding portion that faces an extended edge of the extended portion of the sealing member, and a third holding portion that faces a held part formed on the inside of the extended portion of the seal member. A fluid passage is formed in the second holding portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile