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:
Jul. 14, 2015
Eagle Industry Co., Ltd., Minato-ku, Tokyo, JP;
Hideki Maruyama, Tokyo, JP;
Kenji Kiryu, Tokyo, JP;
Yasuhiro Ikeda, Tokyo, JP;
Kimihiro Tani, Tokyo, JP;
EAGLE INDUSTRY CO., LTD., Tokyo, JP;
Abstract
In an embodiment, a mechanical seal includes: a bellowssealing between a rotating-side seal ringbiased in the axial direction, and an outer periphery face of a rotational shaft; a casefitted to the ringand the outer periphery of the bellows; and a drive ringtightening the bellowsto the shaft, wherein cutout groovesrunning through in the axial direction are provided on the outer periphery area of the ring; detent cutout areasare provided on the side face of the ringon a sealing face S side in a manner extending in the circumferential direction from the cutout grooves; and detent convex areasare provided at the edge area of the caseon the ringside in a manner facing the cutout groovesand bulging in the inner-diameter direction.