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:
Jul. 17, 2018
Filed:
May. 01, 2015
Eagleburgmann Japan Co., Ltd., Tokyo, JP;
Kazuhiko Sato, Tokyo, JP;
EagleBurgmann Japan Co., Ltd., Tokyo, JP;
Abstract
In an assembly method of a magnetic fluid seal () that includes a magnetic field forming member () divided in a circumferential direction, a magnetic pole member () including a pair of magnetic fluid retaining portions () and a coupling portion () that couples them, a first bearing () and a second bearing (), a step of fixing the first bearing () to a shaft () in a state in which the shaft () is directed in a vertical direction, a step of attaching the magnetic pole member () from above the first bearing (), a step of fixing the second bearing () to the shaft () from above the magnetic pole member () to thereby fix the magnetic pole member () in a state in which the magnetic pole member () is positioned with respect to the shaft (); and a step of attaching the magnetic field forming member () between the pair of magnetic fluid retaining portions () are performed in order.