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. 31, 2012
Filed:
Jun. 14, 2006
Hidekazu Takahashi, Tokyo, JP;
Hidekazu Takahashi, Tokyo, JP;
Eagle Industry Co., Ltd., Tokyo, JP;
Abstract
A mechanical seal having a seal cover capable of being installed on the outer surface around the circumferential surface of a hole of a seal housing and having an inner circumferential surface surrounding a shaft; a bellows having a first installation portion and a second installation portion, the first installation portion being formed by sealingly fitting the inner circumferential surface of the seal cover to one end circumferential surface of the bellows, the seconds installation portion being at the other end circumferential surface of the bellows, the first installation portion and the second installation portion forming a tubular portion between the portions, the tubular portion being formed as an elastic means surrounding the shaft; a stationary sealing ring sealingly installed on the circumferential surface of the second installation/portion and having an annular sealing surface pressed by the elastic means of the bellows; a rotating sealing ring having an annular relative sealing surface facing the sealing surface of the stationary sealing ring and slidably in intimate contact with the sealing surface of the stationary sealing ring; and a seal collar sealingly fitted and joined in the rotating sealing ring and also sealingly fitted on the shaft.