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:
Apr. 25, 2017
Filed:
Jun. 02, 2015
Eagle Industry Co., Ltd., Tokyo, JP;
Tetsuya Iguchi, Tokyo, JP;
EAGLE INDUSTRY CO., LTD., Tokyo, JP;
Abstract
A mechanical seal () is configured such that an annular sealed space (S) is formed by a first bellows (), a second bellows (), and members respectively provided on both end sides of the first bellows () and the second bellows (), and that the first bellows () and the second bellows () expand and contract in a central axial direction of a rotating shaft () in accordance with fluid pressure inside the sealed space (S). The first bellows () and the second bellows () are arranged at positions distant to each other in the central axial direction, and are arranged such that a part of the first bellows () on a radially inward side and a part of the second bellows () on a radially outward side overlap when viewed in the central axial direction.