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:
Jun. 20, 2017
Filed:
Jun. 21, 2013
Nok Corporation, Tokyo, JP;
Go Kanzaki, Fukushima, JP;
NOK Corporation, , JP;
Abstract
The invention provides a sealing device having a sliding lip and a labyrinth lip, wherein the sealing device can inhibit the lip from being deformed as the lip even if the labyrinth lip is exposed to the foreign material in the machine outside and is swollen, thereby making the sliding lip protecting function hard to be lost. In order to achieve the object, in a sealing device having a sliding lip which seals so as to prevent foreign material in a machine outside from entering into a machine inside, and a labyrinth lip which makes the foreign material hard to reach the sliding lip, a notch portion for absorbing swelling of the labyrinth lip when the labyrinth lip is exposed to the foreign material and is swollen is provided in a leading end portion of the labyrinth lip.