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:
May. 05, 2026
Filed:
Sep. 27, 2023
Maruyama Mfg. Co., Inc., Tokyo, JP;
Nobuo Tojo, Tokyo, JP;
Yoshitaka Yamanaka, Tokyo, JP;
Abstract
A seal structure configured to be located between a space forming member forming a columnar inner space and a columnar reciprocating member move in the inner space. The seal structure includes an annular seal member that is configured to be located in the inner space, an annular pressing portion which is located adjacent to the seal member and is configured to press the seal member in an axial direction, a compressive coil spring which is located adjacent to the pressing portion, and a cylindrical collar portion. The cylindrical collar portion is at least partially surrounded by the compressive coil spring to avoid interference between the compressive coil spring and the reciprocating member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile